diff options
Diffstat (limited to 'drivers/media/video/pwc')
| -rw-r--r-- | drivers/media/video/pwc/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/media/video/pwc/pwc-ctrl.c | 803 | ||||
| -rw-r--r-- | drivers/media/video/pwc/pwc-dec1.c | 28 | ||||
| -rw-r--r-- | drivers/media/video/pwc/pwc-dec1.h | 8 | ||||
| -rw-r--r-- | drivers/media/video/pwc/pwc-dec23.c | 22 | ||||
| -rw-r--r-- | drivers/media/video/pwc/pwc-dec23.h | 10 | ||||
| -rw-r--r-- | drivers/media/video/pwc/pwc-if.c | 1259 | ||||
| -rw-r--r-- | drivers/media/video/pwc/pwc-ioctl.h | 323 | ||||
| -rw-r--r-- | drivers/media/video/pwc/pwc-kiara.c | 1 | ||||
| -rw-r--r-- | drivers/media/video/pwc/pwc-misc.c | 4 | ||||
| -rw-r--r-- | drivers/media/video/pwc/pwc-uncompress.c | 17 | ||||
| -rw-r--r-- | drivers/media/video/pwc/pwc-uncompress.h | 40 | ||||
| -rw-r--r-- | drivers/media/video/pwc/pwc-v4l.c | 1237 | ||||
| -rw-r--r-- | drivers/media/video/pwc/pwc.h | 409 |
14 files changed, 1457 insertions, 2705 deletions
diff --git a/drivers/media/video/pwc/Kconfig b/drivers/media/video/pwc/Kconfig index 8da42e4..d63d0a8 100644 --- a/drivers/media/video/pwc/Kconfig +++ b/drivers/media/video/pwc/Kconfig @@ -1,6 +1,7 @@ config USB_PWC tristate "USB Philips Cameras" depends on VIDEO_V4L2 + select VIDEOBUF2_VMALLOC ---help--- Say Y or M here if you want to use one of these Philips & OEM webcams: diff --git a/drivers/media/video/pwc/pwc-ctrl.c b/drivers/media/video/pwc/pwc-ctrl.c index 760b4de..3977add 100644 --- a/drivers/media/video/pwc/pwc-ctrl.c +++ b/drivers/media/video/pwc/pwc-ctrl.c @@ -3,6 +3,7 @@ video modes. (C) 1999-2003 Nemosoft Unv. (C) 2004-2006 Luc Saillard (luc@saillard.org) + (C) 2011 Hans de Goede <hdegoede@redhat.com> NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx driver and thus may have bugs that are not present in the original version. @@ -43,61 +44,12 @@ #include <asm/errno.h> #include "pwc.h" -#include "pwc-uncompress.h" #include "pwc-kiara.h" #include "pwc-timon.h" #include "pwc-dec1.h" #include "pwc-dec23.h" -/* Request types: video */ -#define SET_LUM_CTL 0x01 -#define GET_LUM_CTL 0x02 -#define SET_CHROM_CTL 0x03 -#define GET_CHROM_CTL 0x04 -#define SET_STATUS_CTL 0x05 -#define GET_STATUS_CTL 0x06 -#define SET_EP_STREAM_CTL 0x07 -#define GET_EP_STREAM_CTL 0x08 -#define GET_XX_CTL 0x09 -#define SET_XX_CTL 0x0A -#define GET_XY_CTL 0x0B -#define SET_XY_CTL 0x0C -#define SET_MPT_CTL 0x0D -#define GET_MPT_CTL 0x0E - -/* Selectors for the Luminance controls [GS]ET_LUM_CTL */ -#define AGC_MODE_FORMATTER 0x2000 -#define PRESET_AGC_FORMATTER 0x2100 -#define SHUTTER_MODE_FORMATTER 0x2200 -#define PRESET_SHUTTER_FORMATTER 0x2300 -#define PRESET_CONTOUR_FORMATTER 0x2400 -#define AUTO_CONTOUR_FORMATTER 0x2500 -#define BACK_LIGHT_COMPENSATION_FORMATTER 0x2600 -#define CONTRAST_FORMATTER 0x2700 -#define DYNAMIC_NOISE_CONTROL_FORMATTER 0x2800 -#define FLICKERLESS_MODE_FORMATTER 0x2900 -#define AE_CONTROL_SPEED 0x2A00 -#define BRIGHTNESS_FORMATTER 0x2B00 -#define GAMMA_FORMATTER 0x2C00 - -/* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */ -#define WB_MODE_FORMATTER 0x1000 -#define AWB_CONTROL_SPEED_FORMATTER 0x1100 -#define AWB_CONTROL_DELAY_FORMATTER 0x1200 -#define PRESET_MANUAL_RED_GAIN_FORMATTER 0x1300 -#define PRESET_MANUAL_BLUE_GAIN_FORMATTER 0x1400 -#define COLOUR_MODE_FORMATTER 0x1500 -#define SATURATION_MODE_FORMATTER1 0x1600 -#define SATURATION_MODE_FORMATTER2 0x1700 - -/* Selectors for the Status controls [GS]ET_STATUS_CTL */ -#define SAVE_USER_DEFAULTS_FORMATTER 0x0200 -#define RESTORE_USER_DEFAULTS_FORMATTER 0x0300 -#define RESTORE_FACTORY_DEFAULTS_FORMATTER 0x0400 -#define READ_AGC_FORMATTER 0x0500 -#define READ_SHUTTER_FORMATTER 0x0600 -#define READ_RED_GAIN_FORMATTER 0x0700 -#define READ_BLUE_GAIN_FORMATTER 0x0800 +/* Selectors for status controls used only in this file */ #define GET_STATUS_B00 0x0B00 #define SENSOR_TYPE_FORMATTER1 0x0C00 #define GET_STATUS_3000 0x3000 @@ -116,11 +68,6 @@ /* Formatters for the Video Endpoint controls [GS]ET_EP_STREAM_CTL */ #define VIDEO_OUTPUT_CONTROL_FORMATTER 0x0100 -/* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */ -#define PT_RELATIVE_CONTROL_FORMATTER 0x01 -#define PT_RESET_CONTROL_FORMATTER 0x02 -#define PT_STATUS_FORMATTER 0x03 - static const char *size2name[PSZ_MAX] = { "subQCIF", @@ -160,7 +107,7 @@ static void pwc_set_image_buffer_size(struct pwc_device *pdev); /****************************************************************************/ static int _send_control_msg(struct pwc_device *pdev, - u8 request, u16 value, int index, void *buf, int buflen, int timeout) + u8 request, u16 value, int index, void *buf, int buflen) { int rc; void *kbuf = NULL; @@ -177,7 +124,7 @@ static int _send_control_msg(struct pwc_device *pdev, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, value, index, - kbuf, buflen, timeout); + kbuf, buflen, USB_CTRL_SET_TIMEOUT); kfree(kbuf); return rc; @@ -197,9 +144,13 @@ static int recv_control_msg(struct pwc_device *pdev, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, value, pdev->vcinterface, - kbuf, buflen, 500); + kbuf, buflen, USB_CTRL_GET_TIMEOUT); memcpy(buf, kbuf, buflen); kfree(kbuf); + + if (rc < 0) + PWC_ERROR("recv_control_msg error %d req %02x val %04x\n", + rc, request, value); return rc; } @@ -210,18 +161,16 @@ static inline int send_video_command(struct pwc_device *pdev, SET_EP_STREAM_CTL, VIDEO_OUTPUT_CONTROL_FORMATTER, index, - buf, buflen, 1000); + buf, buflen); } -static inline int send_control_msg(struct pwc_device *pdev, +int send_control_msg(struct pwc_device *pdev, u8 request, u16 value, void *buf, int buflen) { return _send_control_msg(pdev, - request, value, pdev->vcinterface, buf, buflen, 500); + request, value, pdev->vcinterface, buf, buflen); } - - static int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames) { unsigned char buf[3]; @@ -261,8 +210,11 @@ static int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames) PWC_DEBUG_MODULE("Failed to send video command... %d\n", ret); return ret; } - if (pEntry->compressed && pdev->pixfmt == V4L2_PIX_FMT_YUV420) - pwc_dec1_init(pdev->type, pdev->release, buf, pdev->decompress_data); + if (pEntry->compressed && pdev->pixfmt == V4L2_PIX_FMT_YUV420) { + ret = pwc_dec1_init(pdev, pdev->type, pdev->release, buf); + if (ret < 0) + return ret; + } pdev->cmd_len = 3; memcpy(pdev->cmd_buf, buf, 3); @@ -321,8 +273,11 @@ static int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames, i if (ret < 0) return ret; - if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420) - pwc_dec23_init(pdev, pdev->type, buf); + if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420) { + ret = pwc_dec23_init(pdev, pdev->type, buf); + if (ret < 0) + return ret; + } pdev->cmd_len = 13; memcpy(pdev->cmd_buf, buf, 13); @@ -394,8 +349,11 @@ static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames, i if (ret < 0) return ret; - if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420) - pwc_dec23_init(pdev, pdev->type, buf); + if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420) { + ret = pwc_dec23_init(pdev, pdev->type, buf); + if (ret < 0) + return ret; + } pdev->cmd_len = 12; memcpy(pdev->cmd_buf, buf, 12); @@ -452,6 +410,7 @@ int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, int frame } pdev->view.x = width; pdev->view.y = height; + pdev->vcompression = compression; pdev->frame_total_size = pdev->frame_size + pdev->frame_header_size + pdev->frame_trailer_size; pwc_set_image_buffer_size(pdev); PWC_DEBUG_SIZE("Set viewport to %dx%d, image size is %dx%d.\n", width, height, pwc_image_sizes[size].x, pwc_image_sizes[size].y); @@ -511,13 +470,9 @@ unsigned int pwc_get_fps(struct pwc_device *pdev, unsigned int index, unsigned i return ret; } -#define BLACK_Y 0 -#define BLACK_U 128 -#define BLACK_V 128 - static void pwc_set_image_buffer_size(struct pwc_device *pdev) { - int i, factor = 0; + int factor = 0; /* for V4L2_PIX_FMT_YUV420 */ switch (pdev->pixfmt) { @@ -541,442 +496,108 @@ static void pwc_set_image_buffer_size(struct pwc_device *pdev) */ pdev->offset.x = ((pdev->view.x - pdev->image.x) / 2) & 0xFFFC; pdev->offset.y = ((pdev->view.y - pdev->image.y) / 2) & 0xFFFE; - - /* Fill buffers with black colors */ - for (i = 0; i < pwc_mbufs; i++) { - unsigned char *p = pdev->image_data + pdev->images[i].offset; - memset(p, BLACK_Y, pdev->view.x * pdev->view.y); - p += pdev->view.x * pdev->view.y; - memset(p, BLACK_U, pdev->view.x * pdev->view.y/4); - p += pdev->view.x * pdev->view.y/4; - memset(p, BLACK_V, pdev->view.x * pdev->view.y/4); - } } - - -/* BRIGHTNESS */ - -int pwc_get_brightness(struct pwc_device *pdev) +int pwc_get_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data) { - char buf; int ret; + u8 buf; - ret = recv_control_msg(pdev, - GET_LUM_CTL, BRIGHTNESS_FORMATTER, &buf, sizeof(buf)); + ret = recv_control_msg(pdev, request, value, &buf, sizeof(buf)); if (ret < 0) return ret; - return buf; -} -int pwc_set_brightness(struct pwc_device *pdev, int value) -{ - char buf; - - if (value < 0) - value = 0; - if (value > 0xffff) - value = 0xffff; - buf = (value >> 9) & 0x7f; - return send_control_msg(pdev, - SET_LUM_CTL, BRIGHTNESS_FORMATTER, &buf, sizeof(buf)); + *data = buf; + return 0; } -/* CONTRAST */ - -int pwc_get_contrast(struct pwc_device *pdev) +int pwc_set_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, u8 data) { - char buf; int ret; - ret = recv_control_msg(pdev, - GET_LUM_CTL, CONTRAST_FORMATTER, &buf, sizeof(buf)); + ret = send_control_msg(pdev, request, value, &data, sizeof(data)); if (ret < 0) return ret; - return buf; -} -int pwc_set_contrast(struct pwc_device *pdev, int value) -{ - char buf; - - if (value < 0) - value = 0; - if (value > 0xffff) - value = 0xffff; - buf = (value >> 10) & 0x3f; - return send_control_msg(pdev, - SET_LUM_CTL, CONTRAST_FORMATTER, &buf, sizeof(buf)); + return 0; } -/* GAMMA */ - -int pwc_get_gamma(struct pwc_device *pdev) +int pwc_get_s8_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data) { - char buf; int ret; + s8 buf; - ret = recv_control_msg(pdev, - GET_LUM_CTL, GAMMA_FORMATTER, &buf, sizeof(buf)); + ret = recv_control_msg(pdev, request, value, &buf, sizeof(buf)); if (ret < 0) return ret; - return buf; -} - -int pwc_set_gamma(struct pwc_device *pdev, int value) -{ - char buf; - if (value < 0) - value = 0; - if (value > 0xffff) - value = 0xffff; - buf = (value >> 11) & 0x1f; - return send_control_msg(pdev, - SET_LUM_CTL, GAMMA_FORMATTER, &buf, sizeof(buf)); -} - - -/* SATURATION */ - -/* return a value between [-100 , 100] */ -int pwc_get_saturation(struct pwc_device *pdev, int *value) -{ - char buf; - int ret, saturation_register; - - if (pdev->type < 675) - return -EINVAL; - if (pdev->type < 730) - saturation_register = SATURATION_MODE_FORMATTER2; - else - saturation_register = SATURATION_MODE_FORMATTER1; - ret = recv_control_msg(pdev, - GET_CHROM_CTL, saturation_register, &buf, sizeof(buf)); - if (ret < 0) - return ret; - *value = (signed)buf; + *data = buf; return 0; } -/* @param value saturation color between [-100 , 100] */ -int pwc_set_saturation(struct pwc_device *pdev, int value) +int pwc_get_u16_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data) { - char buf; - int saturation_register; - - if (pdev->type < 675) - return -EINVAL; - if (value < -100) - value = -100; - if (value > 100) - value = 100; - if (pdev->type < 730) - saturation_register = SATURATION_MODE_FORMATTER2; - else - saturation_register = SATURATION_MODE_FORMATTER1; - return send_control_msg(pdev, - SET_CHROM_CTL, saturation_register, &buf, sizeof(buf)); -} - -/* AGC */ - -int pwc_set_agc(struct pwc_device *pdev, int mode, int value) -{ - char buf; int ret; + u8 buf[2]; - if (mode) - buf = 0x0; /* auto */ - else - buf = 0xff; /* fixed */ - - ret = send_control_msg(pdev, - SET_LUM_CTL, AGC_MODE_FORMATTER, &buf, sizeof(buf)); - - if (!mode && ret >= 0) { - if (value < 0) - value = 0; - if (value > 0xffff) - value = 0xffff; - buf = (value >> 10) & 0x3F; - ret = send_control_msg(pdev, - SET_LUM_CTL, PRESET_AGC_FORMATTER, &buf, sizeof(buf)); - } + ret = recv_control_msg(pdev, request, value, buf, sizeof(buf)); if (ret < 0) return ret; + + *data = (buf[1] << 8) | buf[0]; return 0; } -int pwc_get_agc(struct pwc_device *pdev, int *value) +int pwc_set_u16_ctrl(struct pwc_device *pdev, u8 request, u16 value, u16 data) { - unsigned char buf; int ret; + u8 buf[2]; - ret = recv_control_msg(pdev, - GET_LUM_CTL, AGC_MODE_FORMATTER, &buf, sizeof(buf)); + buf[0] = data & 0xff; + buf[1] = data >> 8; + ret = send_control_msg(pdev, request, value, buf, sizeof(buf)); if (ret < 0) return ret; - if (buf != 0) { /* fixed */ - ret = recv_control_msg(pdev, - GET_LUM_CTL, PRESET_AGC_FORMATTER, &buf, sizeof(buf)); - if (ret < 0) - return ret; - if (buf > 0x3F) - buf = 0x3F; - *value = (buf << 10); - } - else { /* auto */ - ret = recv_control_msg(pdev, - GET_STATUS_CTL, READ_AGC_FORMATTER, &buf, sizeof(buf)); - if (ret < 0) - return ret; - /* Gah... this value ranges from 0x00 ... 0x9F */ - if (buf > 0x9F) - buf = 0x9F; - *value = -(48 + buf * 409); - } - return 0; } -int pwc_set_shutter_speed(struct pwc_device *pdev, int mode, int value) -{ - char buf[2]; - int speed, ret; - - - if (mode) - buf[0] = 0x0; /* auto */ - else - buf[0] = 0xff; /* fixed */ - - ret = send_control_msg(pdev, - SET_LUM_CTL, SHUTTER_MODE_FORMATTER, &buf, 1); - - if (!mode && ret >= 0) { - if (value < 0) - value = 0; - if (value > 0xffff) - value = 0xffff; - - if (DEVICE_USE_CODEC2(pdev->type)) { - /* speed ranges from 0x0 to 0x290 (656) */ - speed = (value / 100); - buf[1] = speed >> 8; - buf[0] = speed & 0xff; - } else if (DEVICE_USE_CODEC3(pdev->type)) { - /* speed seems to range from 0x0 to 0xff */ - buf[1] = 0; - buf[0] = value >> 8; - } - - ret = send_control_msg(pdev, - SET_LUM_CTL, PRESET_SHUTTER_FORMATTER, - &buf, sizeof(buf)); - } - return ret; -} - -/* This function is not exported to v4l1, so output values between 0 -> 256 */ -int pwc_get_shutter_speed(struct pwc_device *pdev, int *value) +int pwc_button_ctrl(struct pwc_device *pdev, u16 value) { - unsigned char buf[2]; int ret; - ret = recv_control_msg(pdev, - GET_STATUS_CTL, READ_SHUTTER_FORMATTER, &buf, sizeof(buf)); + ret = send_control_msg(pdev, SET_STATUS_CTL, value, NULL, 0); if (ret < 0) return ret; - *value = buf[0] + (buf[1] << 8); - if (DEVICE_USE_CODEC2(pdev->type)) { - /* speed ranges from 0x0 to 0x290 (656) */ - *value *= 256/656; - } else if (DEVICE_USE_CODEC3(pdev->type)) { - /* speed seems to range from 0x0 to 0xff */ - } + return 0; } - /* POWER */ - -int pwc_camera_power(struct pwc_device *pdev, int power) +void pwc_camera_power(struct pwc_device *pdev, int power) { char buf; + int r; + + if (!pdev->power_save) + return; if (pdev->type < 675 || (pdev->type < 730 && pdev->release < 6)) - return 0; /* Not supported by Nala or Timon < release 6 */ + return; /* Not supported by Nala or Timon < release 6 */ if (power) buf = 0x00; /* active */ else buf = 0xFF; /* power save */ - return send_control_msg(pdev, + r = send_control_msg(pdev, SET_STATUS_CTL, SET_POWER_SAVE_MODE_FORMATTER, &buf, sizeof(buf)); -} - - - -/* private calls */ - -int pwc_restore_user(struct pwc_device *pdev) -{ - return send_control_msg(pdev, - SET_STATUS_CTL, RESTORE_USER_DEFAULTS_FORMATTER, NULL, 0); -} - -int pwc_save_user(struct pwc_device *pdev) -{ - return send_control_msg(pdev, - SET_STATUS_CTL, SAVE_USER_DEFAULTS_FORMATTER, NULL, 0); -} - -int pwc_restore_factory(struct pwc_device *pdev) -{ - return send_control_msg(pdev, - SET_STATUS_CTL, RESTORE_FACTORY_DEFAULTS_FORMATTER, NULL, 0); -} - - /* ************************************************* */ - /* Patch by Alvarado: (not in the original version */ - - /* - * the camera recognizes modes from 0 to 4: - * - * 00: indoor (incandescant lighting) - * 01: outdoor (sunlight) - * 02: fluorescent lighting - * 03: manual - * 04: auto - */ -int pwc_set_awb(struct pwc_device *pdev, int mode) -{ - char buf; - int ret; - - if (mode < 0) - mode = 0; - - if (mode > 4) - mode = 4; - - buf = mode & 0x07; /* just the lowest three bits */ - - ret = send_control_msg(pdev, - SET_CHROM_CTL, WB_MODE_FORMATTER, &buf, sizeof(buf)); - - if (ret < 0) - return ret; - return 0; -} - -int pwc_get_awb(struct pwc_device *pdev) -{ - unsigned char buf; - int ret; - - ret = recv_control_msg(pdev, - GET_CHROM_CTL, WB_MODE_FORMATTER, &buf, sizeof(buf)); - - if (ret < 0) - return ret; - return buf; -} - -int pwc_set_red_gain(struct pwc_device *pdev, int value) -{ - unsigned char buf; - - if (value < 0) - value = 0; - if (value > 0xffff) - value = 0xffff; - /* only the msb is considered */ - buf = value >> 8; - return send_control_msg(pdev, - SET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, - &buf, sizeof(buf)); -} - -int pwc_get_red_gain(struct pwc_device *pdev, int *value) -{ - unsigned char buf; - int ret; - - ret = recv_control_msg(pdev, - GET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, - &buf, sizeof(buf)); - if (ret < 0) - return ret; - *value = buf << 8; - return 0; -} - - -int pwc_set_blue_gain(struct pwc_device *pdev, int value) -{ - unsigned char buf; - - if (value < 0) - value = 0; - if (value > 0xffff) - value = 0xffff; - /* only the msb is considered */ - buf = value >> 8; - return send_control_msg(pdev, - SET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, - &buf, sizeof(buf)); -} - -int pwc_get_blue_gain(struct pwc_device *pdev, int *value) -{ - unsigned char buf; - int ret; - - ret = recv_control_msg(pdev, - GET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, - &buf, sizeof(buf)); - if (ret < 0) - return ret; - *value = buf << 8; - return 0; -} - -/* The following two functions are different, since they only read the - internal red/blue gains, which may be different from the manual - gains set or read above. - */ -static int pwc_read_red_gain(struct pwc_device *pdev, int *value) -{ - unsigned char buf; - int ret; - - ret = recv_control_msg(pdev, - GET_STATUS_CTL, READ_RED_GAIN_FORMATTER, &buf, sizeof(buf)); - if (ret < 0) - return ret; - *value = buf << 8; - return 0; + if (r < 0) + PWC_ERROR("Failed to power %s camera (%d)\n", + power ? "on" : "off", r); } -static int pwc_read_blue_gain(struct pwc_device *pdev, int *value) -{ - unsigned char buf; - int ret; - - ret = recv_control_msg(pdev, - GET_STATUS_CTL, READ_BLUE_GAIN_FORMATTER, &buf, sizeof(buf)); - if (ret < 0) - return ret; - *value = buf << 8; - return 0; -} - - static int pwc_set_wb_speed(struct pwc_device *pdev, int speed) { unsigned char buf; @@ -1028,6 +649,7 @@ static int pwc_get_wb_delay(struct pwc_device *pdev, int *value) int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value) { unsigned char buf[2]; + int r; if (pdev->type < 730) return 0; @@ -1045,8 +667,12 @@ int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value) buf[0] = on_value; buf[1] = off_value; - return send_control_msg(pdev, + r = send_control_msg(pdev, SET_STATUS_CTL, LED_FORMATTER, &buf, sizeof(buf)); + if (r < 0) + PWC_ERROR("Failed to set LED on/off time (%d)\n", r); + + return r; } static int pwc_get_leds(struct pwc_device *pdev, int *on_value, int *off_value) @@ -1069,164 +695,6 @@ static int pwc_get_leds(struct pwc_device *pdev, int *on_value, int *off_value) return 0; } -int pwc_set_contour(struct pwc_device *pdev, int contour) -{ - unsigned char buf; - int ret; - - if (contour < 0) - buf = 0xff; /* auto contour on */ - else - buf = 0x0; /* auto contour off */ - ret = send_control_msg(pdev, - SET_LUM_CTL, AUTO_CONTOUR_FORMATTER, &buf, sizeof(buf)); - if (ret < 0) - return ret; - - if (contour < 0) - return 0; - if (contour > 0xffff) - contour = 0xffff; - - buf = (contour >> 10); /* contour preset is [0..3f] */ - ret = send_control_msg(pdev, - SET_LUM_CTL, PRESET_CONTOUR_FORMATTER, &buf, sizeof(buf)); - if (ret < 0) - return ret; - return 0; -} - -int pwc_get_contour(struct pwc_device *pdev, int *contour) -{ - unsigned char buf; - int ret; - - ret = recv_control_msg(pdev, - GET_LUM_CTL, AUTO_CONTOUR_FORMATTER, &buf, sizeof(buf)); - if (ret < 0) - return ret; - - if (buf == 0) { - /* auto mode off, query current preset value */ - ret = recv_control_msg(pdev, - GET_LUM_CTL, PRESET_CONTOUR_FORMATTER, - &buf, sizeof(buf)); - if (ret < 0) - return ret; - *contour = buf << 10; - } - else - *contour = -1; - return 0; -} - - -int pwc_set_backlight(struct pwc_device *pdev, int backlight) -{ - unsigned char buf; - - if (backlight) - buf = 0xff; - else - buf = 0x0; - return send_control_msg(pdev, - SET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, - &buf, sizeof(buf)); -} - -int pwc_get_backlight(struct pwc_device *pdev, int *backlight) -{ - int ret; - unsigned char buf; - - ret = recv_control_msg(pdev, - GET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, - &buf, sizeof(buf)); - if (ret < 0) - return ret; - *backlight = !!buf; - return 0; -} - -int pwc_set_colour_mode(struct pwc_device *pdev, int colour) -{ - unsigned char buf; - - if (colour) - buf = 0xff; - else - buf = 0x0; - return send_control_msg(pdev, - SET_CHROM_CTL, COLOUR_MODE_FORMATTER, &buf, sizeof(buf)); -} - -int pwc_get_colour_mode(struct pwc_device *pdev, int *colour) -{ - int ret; - unsigned char buf; - - ret = recv_control_msg(pdev, - GET_CHROM_CTL, COLOUR_MODE_FORMATTER, &buf, sizeof(buf)); - if (ret < 0) - return ret; - *colour = !!buf; - return 0; -} - - -int pwc_set_flicker(struct pwc_device *pdev, int flicker) -{ - unsigned char buf; - - if (flicker) - buf = 0xff; - else - buf = 0x0; - return send_control_msg(pdev, - SET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, &buf, sizeof(buf)); -} - -int pwc_get_flicker(struct pwc_device *pdev, int *flicker) -{ - int ret; - unsigned char buf; - - ret = recv_control_msg(pdev, - GET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, &buf, sizeof(buf)); - if (ret < 0) - return ret; - *flicker = !!buf; - return 0; -} - -int pwc_set_dynamic_noise(struct pwc_device *pdev, int noise) -{ - unsigned char buf; - - if (noise < 0) - noise = 0; - if (noise > 3) - noise = 3; - buf = noise; - return send_control_msg(pdev, - SET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, - &buf, sizeof(buf)); -} - -int pwc_get_dynamic_noise(struct pwc_device *pdev, int *noise) -{ - int ret; - unsigned char buf; - - ret = recv_control_msg(pdev, - GET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, - &buf, sizeof(buf)); - if (ret < 0) - return ret; - *noise = buf; - return 0; -} - static int _pwc_mpt_reset(struct pwc_device *pdev, int flags) { unsigned char buf; @@ -1309,7 +777,7 @@ static int pwc_mpt_get_status(struct pwc_device *pdev, struct pwc_mpt_status *st return 0; } - +#ifdef CONFIG_USB_PWC_DEBUG int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor) { unsigned char buf; @@ -1332,7 +800,7 @@ int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor) *sensor = buf; return 0; } - +#endif /* End of Add-Ons */ /* ************************************************* */ @@ -1356,37 +824,41 @@ int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor) /* copy local variable to arg */ #define ARG_OUT(ARG_name) /* nothing */ +/* + * Our ctrls use native values, but the old custom pwc ioctl interface expects + * values from 0 - 65535, define 2 helper functions to scale things. */ +static int pwc_ioctl_g_ctrl(struct v4l2_ctrl *ctrl) +{ + return v4l2_ctrl_g_ctrl(ctrl) * 65535 / ctrl->maximum; +} + +static int pwc_ioctl_s_ctrl(struct v4l2_ctrl *ctrl, int val) +{ + return v4l2_ctrl_s_ctrl(ctrl, val * ctrl->maximum / 65535); +} + long pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg) { long ret = 0; switch(cmd) { case VIDIOCPWCRUSER: - { - if (pwc_restore_user(pdev)) - ret = -EINVAL; + ret = pwc_button_ctrl(pdev, RESTORE_USER_DEFAULTS_FORMATTER); break; - } case VIDIOCPWCSUSER: - { - if (pwc_save_user(pdev)) - ret = -EINVAL; + ret = pwc_button_ctrl(pdev, SAVE_USER_DEFAULTS_FORMATTER); break; - } case VIDIOCPWCFACTORY: - { - if (pwc_restore_factory(pdev)) - ret = -EINVAL; + ret = pwc_button_ctrl(pdev, RESTORE_FACTORY_DEFAULTS_FORMATTER); break; - } case VIDIOCPWCSCQUAL: { ARG_DEF(int, qual) - if (pdev->iso_init) { + if (vb2_is_streaming(&pdev->vb_queue)) { ret = -EBUSY; break; } @@ -1396,8 +868,6 @@ long pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg) ret = -EINVAL; else ret = pwc_set_video_mode(pdev, pdev->view.x, pdev->view.y, pdev->vframes, ARGR(qual), pdev->vsnapshot); - if (ret >= 0) - pdev->vcompression = ARGR(qual); break; } @@ -1432,71 +902,59 @@ long pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg) case VIDIOCPWCSAGC: { ARG_DEF(int, agc) - ARG_IN(agc) - if (pwc_set_agc(pdev, ARGR(agc) < 0 ? 1 : 0, ARGR(agc))) - ret = -EINVAL; + ret = v4l2_ctrl_s_ctrl(pdev->autogain, ARGR(agc) < 0); + if (ret == 0 && ARGR(agc) >= 0) + ret = pwc_ioctl_s_ctrl(pdev->gain, ARGR(agc)); break; } case VIDIOCPWCGAGC: { ARG_DEF(int, agc) - - if (pwc_get_agc(pdev, ARGA(agc))) - ret = -EINVAL; + if (v4l2_ctrl_g_ctrl(pdev->autogain)) + ARGR(agc) = -1; + else + ARGR(agc) = pwc_ioctl_g_ctrl(pdev->gain); ARG_OUT(agc) break; } case VIDIOCPWCSSHUTTER: { - ARG_DEF(int, shutter_speed) - - ARG_IN(shutter_speed) - ret = pwc_set_shutter_speed(pdev, ARGR(shutter_speed) < 0 ? 1 : 0, ARGR(shutter_speed)); + ARG_DEF(int, shutter) + ARG_IN(shutter) + ret = v4l2_ctrl_s_ctrl(pdev->exposure_auto, + /* Menu idx 0 = auto, idx 1 = manual */ + ARGR(shutter) >= 0); + if (ret == 0 && ARGR(shutter) >= 0) + ret = pwc_ioctl_s_ctrl(pdev->exposure, ARGR(shutter)); break; } case VIDIOCPWCSAWB: { ARG_DEF(struct pwc_whitebalance, wb) - ARG_IN(wb) - ret = pwc_set_awb(pdev, ARGR(wb).mode); - if (ret >= 0 && ARGR(wb).mode == PWC_WB_MANUAL) { - pwc_set_red_gain(pdev, ARGR(wb).manual_red); - pwc_set_blue_gain(pdev, ARGR(wb).manual_blue); - } + ret = v4l2_ctrl_s_ctrl(pdev->auto_white_balance, + ARGR(wb).mode); + if (ret == 0 && ARGR(wb).mode == PWC_WB_MANUAL) + ret = pwc_ioctl_s_ctrl(pdev->red_balance, + ARGR(wb).manual_red); + if (ret == 0 && ARGR(wb).mode == PWC_WB_MANUAL) + ret = pwc_ioctl_s_ctrl(pdev->blue_balance, + ARGR(wb).manual_blue); break; } case VIDIOCPWCGAWB: { ARG_DEF(struct pwc_whitebalance, wb) - - memset(ARGA(wb), 0, sizeof(struct pwc_whitebalance)); - ARGR(wb).mode = pwc_get_awb(pdev); - if (ARGR(wb).mode < 0) - ret = -EINVAL; - else { - if (ARGR(wb).mode == PWC_WB_MANUAL) { - ret = pwc_get_red_gain(pdev, &ARGR(wb).manual_red); - if (ret < 0) - break; - ret = pwc_get_blue_gain(pdev, &ARGR(wb).manual_blue); - if (ret < 0) - break; - } - if (ARGR(wb).mode == PWC_WB_AUTO) { - ret = pwc_read_red_gain(pdev, &ARGR(wb).read_red); - if (ret < 0) - break; - ret = pwc_read_blue_gain(pdev, &ARGR(wb).read_blue); - if (ret < 0) - break; - } - } + ARGR(wb).mode = v4l2_ctrl_g_ctrl(pdev->auto_white_balance); + ARGR(wb).manual_red = ARGR(wb).read_red = + pwc_ioctl_g_ctrl(pdev->red_balance); + ARGR(wb).manual_blue = ARGR(wb).read_blue = + pwc_ioctl_g_ctrl(pdev->blue_balance); ARG_OUT(wb) break; } @@ -1550,17 +1008,20 @@ long pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg) case VIDIOCPWCSCONTOUR: { ARG_DEF(int, contour) - ARG_IN(contour) - ret = pwc_set_contour(pdev, ARGR(contour)); + ret = v4l2_ctrl_s_ctrl(pdev->autocontour, ARGR(contour) < 0); + if (ret == 0 && ARGR(contour) >= 0) + ret = pwc_ioctl_s_ctrl(pdev->contour, ARGR(contour)); break; } case VIDIOCPWCGCONTOUR: { ARG_DEF(int, contour) - - ret = pwc_get_contour(pdev, ARGA(contour)); + if (v4l2_ctrl_g_ctrl(pdev->autocontour)) + ARGR(contour) = -1; + else + ARGR(contour) = pwc_ioctl_g_ctrl(pdev->contour); ARG_OUT(contour) break; } @@ -1568,17 +1029,15 @@ long pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg) case VIDIOCPWCSBACKLIGHT: { ARG_DEF(int, backlight) - ARG_IN(backlight) - ret = pwc_set_backlight(pdev, ARGR(backlight)); + ret = v4l2_ctrl_s_ctrl(pdev->backlight, ARGR(backlight)); break; } case VIDIOCPWCGBACKLIGHT: { ARG_DEF(int, backlight) - - ret = pwc_get_backlight(pdev, ARGA(backlight)); + ARGR(backlight) = v4l2_ctrl_g_ctrl(pdev->backlight); ARG_OUT(backlight) break; } @@ -1586,17 +1045,15 @@ long pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg) case VIDIOCPWCSFLICKER: { ARG_DEF(int, flicker) - ARG_IN(flicker) - ret = pwc_set_flicker(pdev, ARGR(flicker)); + ret = v4l2_ctrl_s_ctrl(pdev->flicker, ARGR(flicker)); break; } case VIDIOCPWCGFLICKER: { ARG_DEF(int, flicker) - - ret = pwc_get_flicker(pdev, ARGA(flicker)); + ARGR(flicker) = v4l2_ctrl_g_ctrl(pdev->flicker); ARG_OUT(flicker) break; } @@ -1604,17 +1061,15 @@ long pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg) case VIDIOCPWCSDYNNOISE: { ARG_DEF(int, dynnoise) - ARG_IN(dynnoise) - ret = pwc_set_dynamic_noise(pdev, ARGR(dynnoise)); + ret = v4l2_ctrl_s_ctrl(pdev->noise_reduction, ARGR(dynnoise)); break; } case VIDIOCPWCGDYNNOISE: { ARG_DEF(int, dynnoise) - - ret = pwc_get_dynamic_noise(pdev, ARGA(dynnoise)); + ARGR(dynnoise) = v4l2_ctrl_g_ctrl(pdev->noise_reduction); ARG_OUT(dynnoise); break; } diff --git a/drivers/media/video/pwc/pwc-dec1.c b/drivers/media/video/pwc/pwc-dec1.c index c29593f..be0e02c 100644 --- a/drivers/media/video/pwc/pwc-dec1.c +++ b/drivers/media/video/pwc/pwc-dec1.c @@ -22,29 +22,19 @@ along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ - - - #include "pwc-dec1.h" - -void pwc_dec1_init(int type, int release, void *buffer, void *table) +int pwc_dec1_init(struct pwc_device *pwc, int type, int release, void *buffer) { + struct pwc_dec1_private *pdec; -} - -void pwc_dec1_exit(void) -{ + if (pwc->decompress_data == NULL) { + pdec = kmalloc(sizeof(struct pwc_dec1_private), GFP_KERNEL); + if (pdec == NULL) + return -ENOMEM; + pwc->decompress_data = pdec; + } + pdec = pwc->decompress_data; - - -} - -int pwc_dec1_alloc(struct pwc_device *pwc) -{ - pwc->decompress_data = kmalloc(sizeof(struct pwc_dec1_private), GFP_KERNEL); - if (pwc->decompress_data == NULL) - return -ENOMEM; return 0; } - diff --git a/drivers/media/video/pwc/pwc-dec1.h b/drivers/media/video/pwc/pwc-dec1.h index 8b62ddc..a57d860 100644 --- a/drivers/media/video/pwc/pwc-dec1.h +++ b/drivers/media/video/pwc/pwc-dec1.h @@ -22,8 +22,6 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ - - #ifndef PWC_DEC1_H #define PWC_DEC1_H @@ -32,12 +30,8 @@ struct pwc_dec1_private { int version; - }; -int pwc_dec1_alloc(struct pwc_device *pwc); -void pwc_dec1_init(int type, int release, void *buffer, void *private_data); -void pwc_dec1_exit(void); +int pwc_dec1_init(struct pwc_device *pwc, int type, int release, void *buffer); #endif - diff --git a/drivers/media/video/pwc/pwc-dec23.c b/drivers/media/video/pwc/pwc-dec23.c index 0c801b8..06a4e87 100644 --- a/drivers/media/video/pwc/pwc-dec23.c +++ b/drivers/media/video/pwc/pwc-dec23.c @@ -916,27 +916,5 @@ void pwc_dec23_decompress(const struct pwc_device *pwc, pout_planar_v += pwc->view.x; } - } - } - -void pwc_dec23_exit(void) -{ - /* Do nothing */ - -} - -/** - * Allocate a private structure used by lookup table. - * You must call kfree() to free the memory allocated. - */ -int pwc_dec23_alloc(struct pwc_device *pwc) -{ - pwc->decompress_data = kmalloc(sizeof(struct pwc_dec23_private), GFP_KERNEL); - if (pwc->decompress_data == NULL) - return -ENOMEM; - return 0; -} - -/* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */ diff --git a/drivers/media/video/pwc/pwc-dec23.h b/drivers/media/video/pwc/pwc-dec23.h index 1c55298..a0ac4f3 100644 --- a/drivers/media/video/pwc/pwc-dec23.h +++ b/drivers/media/video/pwc/pwc-dec23.h @@ -49,19 +49,9 @@ struct pwc_dec23_private }; - -int pwc_dec23_alloc(struct pwc_device *pwc); int pwc_dec23_init(struct pwc_device *pwc, int type, unsigned char *cmd); -void pwc_dec23_exit(void); void pwc_dec23_decompress(const struct pwc_device *pwc, const void *src, void *dst, int flags); - - - #endif - - -/* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */ - diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c index b0bde5a..01ff643 100644 --- a/drivers/media/video/pwc/pwc-if.c +++ b/drivers/media/video/pwc/pwc-if.c @@ -2,6 +2,7 @@ USB and Video4Linux interface part. (C) 1999-2004 Nemosoft Unv. (C) 2004-2006 Luc Saillard (luc@saillard.org) + (C) 2011 Hans de Goede <hdegoede@redhat.com> NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx driver and thus may have bugs that are not present in the original version. @@ -74,7 +75,6 @@ #include "pwc-timon.h" #include "pwc-dec23.h" #include "pwc-dec1.h" -#include "pwc-uncompress.h" /* Function prototypes and driver templates */ @@ -116,6 +116,7 @@ MODULE_DEVICE_TABLE(usb, pwc_device_table); static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id *id); static void usb_pwc_disconnect(struct usb_interface *intf); +static void pwc_isoc_cleanup(struct pwc_device *pdev); static struct usb_driver pwc_driver = { .name = "Philips webcam", /* name */ @@ -127,14 +128,11 @@ static struct usb_driver pwc_driver = { #define MAX_DEV_HINTS 20 #define MAX_ISOC_ERRORS 20 -static int default_size = PSZ_QCIF; static int default_fps = 10; -static int default_fbufs = 3; /* Default number of frame buffers */ - int pwc_mbufs = 2; /* Default number of mmap() buffers */ #ifdef CONFIG_USB_PWC_DEBUG int pwc_trace = PWC_DEBUG_LEVEL; #endif -static int power_save; +static int power_save = -1; static int led_on = 100, led_off; /* defaults to LED that is on while in use */ static int pwc_preferred_compression = 1; /* 0..3 = uncompressed..high */ static struct { @@ -173,389 +171,20 @@ static struct video_device pwc_template = { /***************************************************************************/ /* Private functions */ -/* Here we want the physical address of the memory. - * This is used when initializing the contents of the area. - */ - - - -static void *pwc_rvmalloc(unsigned long size) -{ - void * mem; - unsigned long adr; - - mem=vmalloc_32(size); - if (!mem) - return NULL; - - memset(mem, 0, size); /* Clear the ram out, no junk to the user */ - adr=(unsigned long) mem; - while (size > 0) - { - SetPageReserved(vmalloc_to_page((void *)adr)); - adr += PAGE_SIZE; - size -= PAGE_SIZE; - } - return mem; -} - -static void pwc_rvfree(void * mem, unsigned long size) -{ - unsigned long adr; - - if (!mem) - return; - - adr=(unsigned long) mem; - while ((long) size > 0) - { - ClearPageReserved(vmalloc_to_page((void *)adr)); - adr += PAGE_SIZE; - size -= PAGE_SIZE; - } - vfree(mem); -} - - - - -static int pwc_allocate_buffers(struct pwc_device *pdev) -{ - int i, err; - void *kbuf; - - PWC_DEBUG_MEMORY(">> pwc_allocate_buffers(pdev = 0x%p)\n", pdev); - - if (pdev == NULL) - return -ENXIO; - - /* Allocate Isochronuous pipe buffers */ - for (i = 0; i < MAX_ISO_BUFS; i++) { - if (pdev->sbuf[i].data == NULL) { - kbuf = kzalloc(ISO_BUFFER_SIZE, GFP_KERNEL); - if (kbuf == NULL) { - PWC_ERROR("Failed to allocate iso buffer %d.\n", i); - return -ENOMEM; - } - PWC_DEBUG_MEMORY("Allocated iso buffer at %p.\n", kbuf); - pdev->sbuf[i].data = kbuf; - } - } - - /* Allocate frame buffer structure */ - if (pdev->fbuf == NULL) { - kbuf = kzalloc(default_fbufs * sizeof(struct pwc_frame_buf), GFP_KERNEL); - if (kbuf == NULL) { - PWC_ERROR("Failed to allocate frame buffer structure.\n"); - return -ENOMEM; - } - PWC_DEBUG_MEMORY("Allocated frame buffer structure at %p.\n", kbuf); - pdev->fbuf = kbuf; - } - - /* create frame buffers, and make circular ring */ - for (i = 0; i < default_fbufs; i++) { - if (pdev->fbuf[i].data == NULL) { - kbuf = vzalloc(PWC_FRAME_SIZE); /* need vmalloc since frame buffer > 128K */ - if (kbuf == NULL) { - PWC_ERROR("Failed to allocate frame buffer %d.\n", i); - return -ENOMEM; - } - PWC_DEBUG_MEMORY("Allocated frame buffer %d at %p.\n", i, kbuf); - pdev->fbuf[i].data = kbuf; - } - } - - /* Allocate decompressor table space */ - if (DEVICE_USE_CODEC1(pdev->type)) - err = pwc_dec1_alloc(pdev); - else - err = pwc_dec23_alloc(pdev); - - if (err) { - PWC_ERROR("Failed to allocate decompress table.\n"); - return err; - } - - /* Allocate image buffer; double buffer for mmap() */ - kbuf = pwc_rvmalloc(pwc_mbufs * pdev->len_per_image); - if (kbuf == NULL) { - PWC_ERROR("Failed to allocate image buffer(s). needed (%d)\n", - pwc_mbufs * pdev->len_per_image); - return -ENOMEM; - } - PWC_DEBUG_MEMORY("Allocated image buffer at %p.\n", kbuf); - pdev->image_data = kbuf; - for (i = 0; i < pwc_mbufs; i++) { - pdev->images[i].offset = i * pdev->len_per_image; - pdev->images[i].vma_use_count = 0; - } - for (; i < MAX_IMAGES; i++) { - pdev->images[i].offset = 0; - } - - kbuf = NULL; - - PWC_DEBUG_MEMORY("<< pwc_allocate_buffers()\n"); - return 0; -} - -static void pwc_free_buffers(struct pwc_device *pdev) -{ - int i; - - PWC_DEBUG_MEMORY("Entering free_buffers(%p).\n", pdev); - - if (pdev == NULL) - return; - /* Release Iso-pipe buffers */ - for (i = 0; i < MAX_ISO_BUFS; i++) - if (pdev->sbuf[i].data != NULL) { - PWC_DEBUG_MEMORY("Freeing ISO buffer at %p.\n", pdev->sbuf[i].data); - kfree(pdev->sbuf[i].data); - pdev->sbuf[i].data = NULL; - } - - /* The same for frame buffers */ - if (pdev->fbuf != NULL) { - for (i = 0; i < default_fbufs; i++) { - if (pdev->fbuf[i].data != NULL) { - PWC_DEBUG_MEMORY("Freeing frame buffer %d at %p.\n", i, pdev->fbuf[i].data); - vfree(pdev->fbuf[i].data); - pdev->fbuf[i].data = NULL; - } - } - kfree(pdev->fbuf); - pdev->fbuf = NULL; - } - - /* Intermediate decompression buffer & tables */ - if (pdev->decompress_data != NULL) { - PWC_DEBUG_MEMORY("Freeing decompression buffer at %p.\n", pdev->decompress_data); - kfree(pdev->decompress_data); - pdev->decompress_data = NULL; - } - - /* Release image buffers */ - if (pdev->image_data != NULL) { - PWC_DEBUG_MEMORY("Freeing image buffer at %p.\n", pdev->image_data); - pwc_rvfree(pdev->image_data, pwc_mbufs * pdev->len_per_image); - } - pdev->image_data = NULL; - - PWC_DEBUG_MEMORY("Leaving free_buffers().\n"); -} - -/* The frame & image buffer mess. - - Yes, this is a mess. Well, it used to be simple, but alas... In this - module, 3 buffers schemes are used to get the data from the USB bus to - the user program. The first scheme involves the ISO buffers (called thus - since they transport ISO data from the USB controller), and not really - interesting. Suffices to say the data from this buffer is quickly - gathered in an interrupt handler (pwc_isoc_handler) and placed into the - frame buffer. - - The frame buffer is the second scheme, and is the central element here. - It collects the data from a single frame from the camera (hence, the - name). Frames are delimited by the USB camera with a short USB packet, - so that's easy to detect. The frame buffers form a list that is filled - by the camera+USB controller and drained by the user process through - either read() or mmap(). - - The image buffer is the third scheme, in which frames are decompressed - and converted into planar format. For mmap() there is more than - one image buffer available. - - The frame buffers provide the image buffering. In case the user process - is a bit slow, this introduces lag and some undesired side-effects. - The problem arises when the frame buffer is full. I used to drop the last - frame, which makes the data in the queue stale very quickly. But dropping - the frame at the head of the queue proved to be a litte bit more difficult. - I tried a circular linked scheme, but this introduced more problems than - it solved. - - Because filling and draining are completely asynchronous processes, this - requires some fiddling with pointers and mutexes. - - Eventually, I came up with a system with 2 lists: an 'empty' frame list - and a 'full' frame list: - * Initially, all frame buffers but one are on the 'empty' list; the one - remaining buffer is our initial fill frame. - * If a frame is needed for filling, we try to take it from the 'empty' - list, unless that list is empty, in which case we take the buffer at - the head of the 'full' list. - * When our fill buffer has been filled, it is appended to the 'full' - list. - * If a frame is needed by read() or mmap(), it is taken from the head of - the 'full' list, handled, and then appended to the 'empty' list. If no - buffer is present on the 'full' list, we wait. - The advantage is that the buffer that is currently being decompressed/ - converted, is on neither list, and thus not in our way (any other scheme - I tried had the problem of old data lingering in the queue). - - Whatever strategy you choose, it always remains a tradeoff: with more - frame buffers the chances of a missed frame are reduced. On the other - hand, on slower machines it introduces lag because the queue will - always be full. - */ - -/** - \brief Find next frame buffer to fill. Take from empty or full list, whichever comes first. - */ -static int pwc_next_fill_frame(struct pwc_device *pdev) -{ - int ret; - unsigned long flags; - - ret = 0; - spin_lock_irqsave(&pdev->ptrlock, flags); - if (pdev->fill_frame != NULL) { - /* append to 'full' list */ - if (pdev->full_frames == NULL) { - pdev->full_frames = pdev->fill_frame; - pdev->full_frames_tail = pdev->full_frames; - } - else { - pdev->full_frames_tail->next = pdev->fill_frame; - pdev->full_frames_tail = pdev->fill_frame; - } - } - if (pdev->empty_frames != NULL) { - /* We have empty frames available. That's easy */ - pdev->fill_frame = pdev->empty_frames; - pdev->empty_frames = pdev->empty_frames->next; - } - else { - /* Hmm. Take it from the full list */ - /* sanity check */ - if (pdev->full_frames == NULL) { - PWC_ERROR("Neither empty or full frames available!\n"); - spin_unlock_irqrestore(&pdev->ptrlock, flags); - return -EINVAL; - } - pdev->fill_frame = pdev->full_frames; - pdev->full_frames = pdev->full_frames->next; - ret = 1; - } - pdev->fill_frame->next = NULL; - spin_unlock_irqrestore(&pdev->ptrlock, flags); - return ret; -} - - -/** - \brief Reset all buffers, pointers and lists, except for the image_used[] buffer. - - If the image_used[] buffer is cleared too, mmap()/VIDIOCSYNC will run into trouble. - */ -static void pwc_reset_buffers(struct pwc_device *pdev) -{ - int i; - unsigned long flags; - - PWC_DEBUG_MEMORY(">> %s __enter__\n", __func__); - - spin_lock_irqsave(&pdev->ptrlock, flags); - pdev->full_frames = NULL; - pdev->full_frames_tail = NULL; - for (i = 0; i < default_fbufs; i++) { - pdev->fbuf[i].filled = 0; - if (i > 0) - pdev->fbuf[i].next = &pdev->fbuf[i - 1]; - else - pdev->fbuf->next = NULL; - } - pdev->empty_frames = &pdev->fbuf[default_fbufs - 1]; - pdev->empty_frames_tail = pdev->fbuf; - pdev->read_frame = NULL; - pdev->fill_frame = pdev->empty_frames; - pdev->empty_frames = pdev->empty_frames->next; - - pdev->image_read_pos = 0; - pdev->fill_image = 0; - spin_unlock_irqrestore(&pdev->ptrlock, flags); - - PWC_DEBUG_MEMORY("<< %s __leaving__\n", __func__); -} - - -/** - \brief Do all the handling for getting one frame: get pointer, decompress, advance pointers. - */ -int pwc_handle_frame(struct pwc_device *pdev) +struct pwc_frame_buf *pwc_get_next_fill_buf(struct pwc_device *pdev) { - int ret = 0; - unsigned long flags; - - spin_lock_irqsave(&pdev->ptrlock, flags); - /* First grab our read_frame; this is removed from all lists, so - we can release the lock after this without problems */ - if (pdev->read_frame != NULL) { - /* This can't theoretically happen */ - PWC_ERROR("Huh? Read frame still in use?\n"); - spin_unlock_irqrestore(&pdev->ptrlock, flags); - return ret; - } - - - if (pdev->full_frames == NULL) { - PWC_ERROR("Woops. No frames ready.\n"); - } - else { - pdev->read_frame = pdev->full_frames; - pdev->full_frames = pdev->full_frames->next; - pdev->read_frame->next = NULL; - } - - if (pdev->read_frame != NULL) { - /* Decompression is a lengthy process, so it's outside of the lock. - This gives the isoc_handler the opportunity to fill more frames - in the mean time. - */ - spin_unlock_irqrestore(&pdev->ptrlock, flags); - ret = pwc_decompress(pdev); - spin_lock_irqsave(&pdev->ptrlock, flags); - - /* We're done with read_buffer, tack it to the end of the empty buffer list */ - if (pdev->empty_frames == NULL) { - pdev->empty_frames = pdev->read_frame; - pdev->empty_frames_tail = pdev->empty_frames; - } - else { - pdev->empty_frames_tail->next = pdev->read_frame; - pdev->empty_frames_tail = pdev->read_frame; - } - pdev->read_frame = NULL; - } - spin_unlock_irqrestore(&pdev->ptrlock, flags); - return ret; -} - -/** - \brief Advance pointers of image buffer (after each user request) -*/ -void pwc_next_image(struct pwc_device *pdev) -{ - pdev->image_used[pdev->fill_image] = 0; - pdev->fill_image = (pdev->fill_image + 1) % pwc_mbufs; -} - -/** - * Print debug information when a frame is discarded because all of our buffer - * is full - */ -static void pwc_frame_dumped(struct pwc_device *pdev) -{ - pdev->vframes_dumped++; - if (pdev->vframe_count < FRAME_LOWMARK) - return; - - if (pdev->vframes_dumped < 20) - PWC_DEBUG_FLOW("Dumping frame %d\n", pdev->vframe_count); - else if (pdev->vframes_dumped == 20) - PWC_DEBUG_FLOW("Dumping frame %d (last message)\n", - pdev->vframe_count); + unsigned long flags = 0; + struct pwc_frame_buf *buf = NULL; + + spin_lock_irqsave(&pdev->queued_bufs_lock, flags); + if (list_empty(&pdev->queued_bufs)) + goto leave; + + buf = list_entry(pdev->queued_bufs.next, struct pwc_frame_buf, list); + list_del(&buf->list); +leave: + spin_unlock_irqrestore(&pdev->queued_bufs_lock, flags); + return buf; } static void pwc_snapshot_button(struct pwc_device *pdev, int down) @@ -575,9 +204,9 @@ static void pwc_snapshot_button(struct pwc_device *pdev, int down) #endif } -static int pwc_rcv_short_packet(struct pwc_device *pdev, const struct pwc_frame_buf *fbuf) +static void pwc_frame_complete(struct pwc_device *pdev) { - int awake = 0; + struct pwc_frame_buf *fbuf = pdev->fill_buf; /* The ToUCam Fun CMOS sensor causes the firmware to send 2 or 3 bogus frames on the USB wire after an exposure change. This conditition is @@ -589,7 +218,6 @@ static int pwc_rcv_short_packet(struct pwc_device *pdev, const struct pwc_frame_ if (ptr[1] == 1 && ptr[0] & 0x10) { PWC_TRACE("Hyundai CMOS sensor bug. Dropping frame.\n"); pdev->drop_frames += 2; - pdev->vframes_error++; } if ((ptr[0] ^ pdev->vmirror) & 0x01) { pwc_snapshot_button(pdev, ptr[0] & 0x01); @@ -612,8 +240,7 @@ static int pwc_rcv_short_packet(struct pwc_device *pdev, const struct pwc_frame_ */ if (fbuf->filled == 4) pdev->drop_frames++; - } - else if (pdev->type == 740 || pdev->type == 720) { + } else if (pdev->type == 740 || pdev->type == 720) { unsigned char *ptr = (unsigned char *)fbuf->data; if ((ptr[0] ^ pdev->vmirror) & 0x01) { pwc_snapshot_button(pdev, ptr[0] & 0x01); @@ -621,33 +248,23 @@ static int pwc_rcv_short_packet(struct pwc_device *pdev, const struct pwc_frame_ pdev->vmirror = ptr[0] & 0x03; } - /* In case we were instructed to drop the frame, do so silently. - The buffer pointers are not updated either (but the counters are reset below). - */ - if (pdev->drop_frames > 0) + /* In case we were instructed to drop the frame, do so silently. */ + if (pdev->drop_frames > 0) { pdev->drop_frames--; - else { + } else { /* Check for underflow first */ if (fbuf->filled < pdev->frame_total_size) { PWC_DEBUG_FLOW("Frame buffer underflow (%d bytes);" " discarded.\n", fbuf->filled); - pdev->vframes_error++; - } - else { - /* Send only once per EOF */ - awake = 1; /* delay wake_ups */ - - /* Find our next frame to fill. This will always succeed, since we - * nick a frame from either empty or full list, but if we had to - * take it from the full list, it means a frame got dropped. - */ - if (pwc_next_fill_frame(pdev)) - pwc_frame_dumped(pdev); - + } else { + fbuf->vb.v4l2_buf.field = V4L2_FIELD_NONE; + fbuf->vb.v4l2_buf.sequence = pdev->vframe_count; + vb2_buffer_done(&fbuf->vb, VB2_BUF_STATE_DONE); + pdev->fill_buf = NULL; + pdev->vsync = 0; } } /* !drop_frames */ pdev->vframe_count++; - return awake; } /* This gets called for the Isochronous pipe (video). This is done in @@ -655,24 +272,20 @@ static int pwc_rcv_short_packet(struct pwc_device *pdev, const struct pwc_frame_ */ static void pwc_isoc_handler(struct urb *urb) { - struct pwc_device *pdev; + struct pwc_device *pdev = (struct pwc_device *)urb->context; int i, fst, flen; - int awake; - struct pwc_frame_buf *fbuf; - unsigned char *fillptr = NULL, *iso_buf = NULL; + unsigned char *iso_buf = NULL; - awake = 0; - pdev = (struct pwc_device *)urb->context; - if (pdev == NULL) { - PWC_ERROR("isoc_handler() called with NULL device?!\n"); - return; - } - - if (urb->status == -ENOENT || urb->status == -ECONNRESET) { + if (urb->status == -ENOENT || urb->status == -ECONNRESET || + urb->status == -ESHUTDOWN) { PWC_DEBUG_OPEN("URB (%p) unlinked %ssynchronuously.\n", urb, urb->status == -ENOENT ? "" : "a"); return; } - if (urb->status != -EINPROGRESS && urb->status != 0) { + + if (pdev->fill_buf == NULL) + pdev->fill_buf = pwc_get_next_fill_buf(pdev); + + if (urb->status != 0) { const char *errmsg; errmsg = "Unknown"; @@ -684,29 +297,21 @@ static void pwc_isoc_handler(struct urb *urb) case -EILSEQ: errmsg = "CRC/Timeout (could be anything)"; break; case -ETIME: errmsg = "Device does not respond"; break; } - PWC_DEBUG_FLOW("pwc_isoc_handler() called with status %d [%s].\n", urb->status, errmsg); - /* Give up after a number of contiguous errors on the USB bus. - Appearantly something is wrong so we simulate an unplug event. - */ + PWC_ERROR("pwc_isoc_handler() called with status %d [%s].\n", + urb->status, errmsg); + /* Give up after a number of contiguous errors */ if (++pdev->visoc_errors > MAX_ISOC_ERRORS) { - PWC_INFO("Too many ISOC errors, bailing out.\n"); - pdev->error_status = EIO; - awake = 1; - wake_up_interruptible(&pdev->frameq); + PWC_ERROR("Too many ISOC errors, bailing out.\n"); + if (pdev->fill_buf) { + vb2_buffer_done(&pdev->fill_buf->vb, + VB2_BUF_STATE_ERROR); + pdev->fill_buf = NULL; + } } - goto handler_end; // ugly, but practical - } - - fbuf = pdev->fill_frame; - if (fbuf == NULL) { - PWC_ERROR("pwc_isoc_handler without valid fill frame.\n"); - awake = 1; + pdev->vsync = 0; /* Drop the current frame */ goto handler_end; } - else { - fillptr = fbuf->data + fbuf->filled; - } /* Reset ISOC error counter. We did get here, after all. */ pdev->visoc_errors = 0; @@ -720,89 +325,73 @@ static void pwc_isoc_handler(struct urb *urb) fst = urb->iso_frame_desc[i].status; flen = urb->iso_frame_desc[i].actual_length; iso_buf = urb->transfer_buffer + urb->iso_frame_desc[i].offset; - if (fst == 0) { - if (flen > 0) { /* if valid data... */ - if (pdev->vsync > 0) { /* ...and we are not sync-hunting... */ - pdev->vsync = 2; - - /* ...copy data to frame buffer, if possible */ - if (flen + fbuf->filled > pdev->frame_total_size) { - PWC_DEBUG_FLOW("Frame buffer overflow (flen = %d, frame_total_size = %d).\n", flen, pdev->frame_total_size); - pdev->vsync = 0; /* Hmm, let's wait for an EOF (end-of-frame) */ - pdev->vframes_error++; - } - else { - memmove(fillptr, iso_buf, flen); - fillptr += flen; - } - } + if (fst != 0) { + PWC_ERROR("Iso frame %d has error %d\n", i, fst); + continue; + } + if (flen > 0 && pdev->vsync) { + struct pwc_frame_buf *fbuf = pdev->fill_buf; + + if (pdev->vsync == 1) { + do_gettimeofday(&fbuf->vb.v4l2_buf.timestamp); + pdev->vsync = 2; + } + + if (flen + fbuf->filled > pdev->frame_total_size) { + PWC_ERROR("Frame overflow (%d > %d)\n", + flen + fbuf->filled, + pdev->frame_total_size); + pdev->vsync = 0; /* Let's wait for an EOF */ + } else { + memcpy(fbuf->data + fbuf->filled, iso_buf, + flen); fbuf->filled += flen; - } /* ..flen > 0 */ - - if (flen < pdev->vlast_packet_size) { - /* Shorter packet... We probably have the end of an image-frame; - wake up read() process and let select()/poll() do something. - Decompression is done in user time over there. - */ - if (pdev->vsync == 2) { - if (pwc_rcv_short_packet(pdev, fbuf)) { - awake = 1; - fbuf = pdev->fill_frame; - } - } - fbuf->filled = 0; - fillptr = fbuf->data; + } + } + if (flen < pdev->vlast_packet_size) { + /* Shorter packet... end of frame */ + if (pdev->vsync == 2) + pwc_frame_complete(pdev); + if (pdev->fill_buf == NULL) + pdev->fill_buf = pwc_get_next_fill_buf(pdev); + if (pdev->fill_buf) { + pdev->fill_buf->filled = 0; pdev->vsync = 1; } - - pdev->vlast_packet_size = flen; - } /* ..status == 0 */ - else { - /* This is normally not interesting to the user, unless - * you are really debugging something, default = 0 */ - static int iso_error; - iso_error++; - if (iso_error < 20) - PWC_DEBUG_FLOW("Iso frame %d of USB has error %d\n", i, fst); } + pdev->vlast_packet_size = flen; } handler_end: - if (awake) - wake_up_interruptible(&pdev->frameq); - - urb->dev = pdev->udev; i = usb_submit_urb(urb, GFP_ATOMIC); if (i != 0) PWC_ERROR("Error (%d) re-submitting urb in pwc_isoc_handler.\n", i); } - -int pwc_isoc_init(struct pwc_device *pdev) +static int pwc_isoc_init(struct pwc_device *pdev) { struct usb_device *udev; struct urb *urb; int i, j, ret; - struct usb_interface *intf; struct usb_host_interface *idesc = NULL; - if (pdev == NULL) - return -EFAULT; if (pdev->iso_init) return 0; + pdev->vsync = 0; + pdev->vlast_packet_size = 0; + pdev->fill_buf = NULL; + pdev->vframe_count = 0; + pdev->visoc_errors = 0; udev = pdev->udev; /* Get the current alternate interface, adjust packet size */ - if (!udev->actconfig) - return -EFAULT; intf = usb_ifnum_to_if(udev, 0); if (intf) idesc = usb_altnum_to_altsetting(intf, pdev->valternate); - if (!idesc) - return -EFAULT; + return -EIO; /* Search video endpoint */ pdev->vmax_packet_size = -1; @@ -825,34 +414,32 @@ int pwc_isoc_init(struct pwc_device *pdev) if (ret < 0) return ret; + /* Allocate and init Isochronuous urbs */ for (i = 0; i < MAX_ISO_BUFS; i++) { urb = usb_alloc_urb(ISO_FRAMES_PER_DESC, GFP_KERNEL); if (urb == NULL) { PWC_ERROR("Failed to allocate urb %d\n", i); - ret = -ENOMEM; - break; + pdev->iso_init = 1; + pwc_isoc_cleanup(pdev); + return -ENOMEM; } - pdev->sbuf[i].urb = urb; + pdev->urbs[i] = urb; PWC_DEBUG_MEMORY("Allocated URB at 0x%p\n", urb); - } - if (ret) { - /* De-allocate in reverse order */ - while (i--) { - usb_free_urb(pdev->sbuf[i].urb); - pdev->sbuf[i].urb = NULL; - } - return ret; - } - - /* init URB structure */ - for (i = 0; i < MAX_ISO_BUFS; i++) { - urb = pdev->sbuf[i].urb; urb->interval = 1; // devik urb->dev = udev; urb->pipe = usb_rcvisocpipe(udev, pdev->vendpoint); - urb->transfer_flags = URB_ISO_ASAP; - urb->transfer_buffer = pdev->sbuf[i].data; + urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; + urb->transfer_buffer = usb_alloc_coherent(udev, + ISO_BUFFER_SIZE, + GFP_KERNEL, + &urb->transfer_dma); + if (urb->transfer_buffer == NULL) { + PWC_ERROR("Failed to allocate urb buffer %d\n", i); + pdev->iso_init = 1; + pwc_isoc_cleanup(pdev); + return -ENOMEM; + } urb->transfer_buffer_length = ISO_BUFFER_SIZE; urb->complete = pwc_isoc_handler; urb->context = pdev; @@ -866,14 +453,14 @@ int pwc_isoc_init(struct pwc_device *pdev) /* link */ for (i = 0; i < MAX_ISO_BUFS; i++) { - ret = usb_submit_urb(pdev->sbuf[i].urb, GFP_KERNEL); + ret = usb_submit_urb(pdev->urbs[i], GFP_KERNEL); if (ret) { PWC_ERROR("isoc_init() submit_urb %d failed with error %d\n", i, ret); pdev->iso_init = 1; pwc_isoc_cleanup(pdev); return ret; } - PWC_DEBUG_MEMORY("URB 0x%p submitted.\n", pdev->sbuf[i].urb); + PWC_DEBUG_MEMORY("URB 0x%p submitted.\n", pdev->urbs[i]); } /* All is done... */ @@ -888,12 +475,9 @@ static void pwc_iso_stop(struct pwc_device *pdev) /* Unlinking ISOC buffers one by one */ for (i = 0; i < MAX_ISO_BUFS; i++) { - struct urb *urb; - - urb = pdev->sbuf[i].urb; - if (urb) { - PWC_DEBUG_MEMORY("Unlinking URB %p\n", urb); - usb_kill_urb(urb); + if (pdev->urbs[i]) { + PWC_DEBUG_MEMORY("Unlinking URB %p\n", pdev->urbs[i]); + usb_kill_urb(pdev->urbs[i]); } } } @@ -904,40 +488,51 @@ static void pwc_iso_free(struct pwc_device *pdev) /* Freeing ISOC buffers one by one */ for (i = 0; i < MAX_ISO_BUFS; i++) { - struct urb *urb; - - urb = pdev->sbuf[i].urb; - if (urb) { + if (pdev->urbs[i]) { PWC_DEBUG_MEMORY("Freeing URB\n"); - usb_free_urb(urb); - pdev->sbuf[i].urb = NULL; + if (pdev->urbs[i]->transfer_buffer) { + usb_free_coherent(pdev->udev, + pdev->urbs[i]->transfer_buffer_length, + pdev->urbs[i]->transfer_buffer, + pdev->urbs[i]->transfer_dma); + } + usb_free_urb(pdev->urbs[i]); + pdev->urbs[i] = NULL; } } } -void pwc_isoc_cleanup(struct pwc_device *pdev) +static void pwc_isoc_cleanup(struct pwc_device *pdev) { PWC_DEBUG_OPEN(">> pwc_isoc_cleanup()\n"); - if (pdev == NULL) - return; + if (pdev->iso_init == 0) return; pwc_iso_stop(pdev); pwc_iso_free(pdev); - - /* Stop camera, but only if we are sure the camera is still there (unplug - is signalled by EPIPE) - */ - if (pdev->error_status != EPIPE) { - PWC_DEBUG_OPEN("Setting alternate interface 0.\n"); - usb_set_interface(pdev->udev, 0, 0); - } + usb_set_interface(pdev->udev, 0, 0); pdev->iso_init = 0; PWC_DEBUG_OPEN("<< pwc_isoc_cleanup()\n"); } +/* + * Release all queued buffers, no need to take queued_bufs_lock, since all + * iso urbs have been killed when we're called so pwc_isoc_handler won't run. + */ +static void pwc_cleanup_queued_bufs(struct pwc_device *pdev) +{ + while (!list_empty(&pdev->queued_bufs)) { + struct pwc_frame_buf *buf; + + buf = list_entry(pdev->queued_bufs.next, struct pwc_frame_buf, + list); + list_del(&buf->list); + vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); + } +} + /********* * sysfs *********/ @@ -1051,98 +646,15 @@ static const char *pwc_sensor_type_to_string(unsigned int sensor_type) static int pwc_video_open(struct file *file) { - int i, ret; struct video_device *vdev = video_devdata(file); struct pwc_device *pdev; PWC_DEBUG_OPEN(">> video_open called(vdev = 0x%p).\n", vdev); pdev = video_get_drvdata(vdev); - BUG_ON(!pdev); - if (pdev->vopen) { - PWC_DEBUG_OPEN("I'm busy, someone is using the device.\n"); - return -EBUSY; - } - - pwc_construct(pdev); /* set min/max sizes correct */ - if (!pdev->usb_init) { - PWC_DEBUG_OPEN("Doing first time initialization.\n"); - pdev->usb_init = 1; - - /* Query sensor type */ - ret = pwc_get_cmos_sensor(pdev, &i); - if (ret >= 0) - { - PWC_DEBUG_OPEN("This %s camera is equipped with a %s (%d).\n", - pdev->vdev.name, - pwc_sensor_type_to_string(i), i); - } - } - - /* Turn on camera */ - if (power_save) { - i = pwc_camera_power(pdev, 1); - if (i < 0) - PWC_DEBUG_OPEN("Failed to restore power to the camera! (%d)\n", i); - } - /* Set LED on/off time */ - if (pwc_set_leds(pdev, led_on, led_off) < 0) - PWC_DEBUG_OPEN("Failed to set LED on/off time.\n"); - - - /* So far, so good. Allocate memory. */ - i = pwc_allocate_buffers(pdev); - if (i < 0) { - PWC_DEBUG_OPEN("Failed to allocate buffers memory.\n"); - pwc_free_buffers(pdev); - return i; - } - - /* Reset buffers & parameters */ - pwc_reset_buffers(pdev); - for (i = 0; i < pwc_mbufs; i++) - pdev->image_used[i] = 0; - pdev->vframe_count = 0; - pdev->vframes_dumped = 0; - pdev->vframes_error = 0; - pdev->visoc_errors = 0; - pdev->error_status = 0; - pwc_construct(pdev); /* set min/max sizes correct */ - - /* Set some defaults */ - pdev->vsnapshot = 0; - - /* Set video size, first try the last used video size - (or the default one); if that fails try QCIF/10 or QSIF/10; - it that fails too, give up. - */ - i = pwc_set_video_mode(pdev, pwc_image_sizes[pdev->vsize].x, pwc_image_sizes[pdev->vsize].y, pdev->vframes, pdev->vcompression, 0); - if (i) { - unsigned int default_resolution; - PWC_DEBUG_OPEN("First attempt at set_video_mode failed.\n"); - if (pdev->type>= 730) - default_resolution = PSZ_QSIF; - else - default_resolution = PSZ_QCIF; - - i = pwc_set_video_mode(pdev, - pwc_image_sizes[default_resolution].x, - pwc_image_sizes[default_resolution].y, - 10, - pdev->vcompression, - 0); - } - if (i) { - PWC_DEBUG_OPEN("Second attempt at set_video_mode failed.\n"); - pwc_free_buffers(pdev); - return i; - } - - /* Initialize the webcam to sane value */ - pwc_set_brightness(pdev, 0x7fff); - pwc_set_agc(pdev, 1, 0); + if (!pdev->udev) + return -ENODEV; - pdev->vopen++; file->private_data = vdev; PWC_DEBUG_OPEN("<< video_open() returns 0.\n"); return 0; @@ -1158,239 +670,211 @@ static void pwc_video_release(struct video_device *vfd) if (device_hint[hint].pdev == pdev) device_hint[hint].pdev = NULL; + /* Free intermediate decompression buffer & tables */ + if (pdev->decompress_data != NULL) { + PWC_DEBUG_MEMORY("Freeing decompression buffer at %p.\n", + pdev->decompress_data); + kfree(pdev->decompress_data); + pdev->decompress_data = NULL; + } + + v4l2_ctrl_handler_free(&pdev->ctrl_handler); + kfree(pdev); } -/* Note that all cleanup is done in the reverse order as in _open */ static int pwc_video_close(struct file *file) { struct video_device *vdev = file->private_data; struct pwc_device *pdev; - int i; PWC_DEBUG_OPEN(">> video_close called(vdev = 0x%p).\n", vdev); pdev = video_get_drvdata(vdev); - if (pdev->vopen == 0) - PWC_DEBUG_MODULE("video_close() called on closed device?\n"); - - /* Dump statistics, but only if a reasonable amount of frames were - processed (to prevent endless log-entries in case of snap-shot - programs) - */ - if (pdev->vframe_count > 20) - PWC_DEBUG_MODULE("Closing video device: %d frames received, dumped %d frames, %d frames with errors.\n", pdev->vframe_count, pdev->vframes_dumped, pdev->vframes_error); - - if (DEVICE_USE_CODEC1(pdev->type)) - pwc_dec1_exit(); - else - pwc_dec23_exit(); - - pwc_isoc_cleanup(pdev); - pwc_free_buffers(pdev); - - /* Turn off LEDS and power down camera, but only when not unplugged */ - if (!pdev->unplugged) { - /* Turn LEDs off */ - if (pwc_set_leds(pdev, 0, 0) < 0) - PWC_DEBUG_MODULE("Failed to set LED on/off time.\n"); - if (power_save) { - i = pwc_camera_power(pdev, 0); - if (i < 0) - PWC_ERROR("Failed to power down camera (%d)\n", i); - } - pdev->vopen--; - PWC_DEBUG_OPEN("<< video_close() vopen=%d\n", pdev->vopen); + if (pdev->capt_file == file) { + vb2_queue_release(&pdev->vb_queue); + pdev->capt_file = NULL; } + PWC_DEBUG_OPEN("<< video_close()\n"); return 0; } -/* - * FIXME: what about two parallel reads ???? - * ANSWER: Not supported. You can't open the device more than once, - despite what the V4L1 interface says. First, I don't see - the need, second there's no mechanism of alerting the - 2nd/3rd/... process of events like changing image size. - And I don't see the point of blocking that for the - 2nd/3rd/... process. - In multi-threaded environments reading parallel from any - device is tricky anyhow. - */ - static ssize_t pwc_video_read(struct file *file, char __user *buf, - size_t count, loff_t *ppos) + size_t count, loff_t *ppos) { struct video_device *vdev = file->private_data; - struct pwc_device *pdev; - int noblock = file->f_flags & O_NONBLOCK; - DECLARE_WAITQUEUE(wait, current); - int bytes_to_read, rv = 0; - void *image_buffer_addr; - - PWC_DEBUG_READ("pwc_video_read(vdev=0x%p, buf=%p, count=%zd) called.\n", - vdev, buf, count); - if (vdev == NULL) - return -EFAULT; - pdev = video_get_drvdata(vdev); - if (pdev == NULL) - return -EFAULT; + struct pwc_device *pdev = video_get_drvdata(vdev); - if (pdev->error_status) { - rv = -pdev->error_status; /* Something happened, report what. */ - goto err_out; - } + if (!pdev->udev) + return -ENODEV; - /* Start the stream (if not already started) */ - rv = pwc_isoc_init(pdev); - if (rv) - goto err_out; - - /* In case we're doing partial reads, we don't have to wait for a frame */ - if (pdev->image_read_pos == 0) { - /* Do wait queueing according to the (doc)book */ - add_wait_queue(&pdev->frameq, &wait); - while (pdev->full_frames == NULL) { - /* Check for unplugged/etc. here */ - if (pdev->error_status) { - remove_wait_queue(&pdev->frameq, &wait); - set_current_state(TASK_RUNNING); - rv = -pdev->error_status ; - goto err_out; - } - if (noblock) { - remove_wait_queue(&pdev->frameq, &wait); - set_current_state(TASK_RUNNING); - rv = -EWOULDBLOCK; - goto err_out; - } - if (signal_pending(current)) { - remove_wait_queue(&pdev->frameq, &wait); - set_current_state(TASK_RUNNING); - rv = -ERESTARTSYS; - goto err_out; - } - mutex_unlock(&pdev->modlock); - schedule(); - set_current_state(TASK_INTERRUPTIBLE); - mutex_lock(&pdev->modlock); - } - remove_wait_queue(&pdev->frameq, &wait); - set_current_state(TASK_RUNNING); + if (pdev->capt_file != NULL && + pdev->capt_file != file) + return -EBUSY; - /* Decompress and release frame */ - if (pwc_handle_frame(pdev)) { - rv = -EFAULT; - goto err_out; - } - } + pdev->capt_file = file; - PWC_DEBUG_READ("Copying data to user space.\n"); - if (pdev->pixfmt != V4L2_PIX_FMT_YUV420) - bytes_to_read = pdev->frame_size + sizeof(struct pwc_raw_frame); - else - bytes_to_read = pdev->view.size; - - /* copy bytes to user space; we allow for partial reads */ - if (count + pdev->image_read_pos > bytes_to_read) - count = bytes_to_read - pdev->image_read_pos; - image_buffer_addr = pdev->image_data; - image_buffer_addr += pdev->images[pdev->fill_image].offset; - image_buffer_addr += pdev->image_read_pos; - if (copy_to_user(buf, image_buffer_addr, count)) { - rv = -EFAULT; - goto err_out; - } - pdev->image_read_pos += count; - if (pdev->image_read_pos >= bytes_to_read) { /* All data has been read */ - pdev->image_read_pos = 0; - pwc_next_image(pdev); - } - return count; -err_out: - return rv; + return vb2_read(&pdev->vb_queue, buf, count, ppos, + file->f_flags & O_NONBLOCK); } static unsigned int pwc_video_poll(struct file *file, poll_table *wait) { struct video_device *vdev = file->private_data; - struct pwc_device *pdev; - int ret; + struct pwc_device *pdev = video_get_drvdata(vdev); - if (vdev == NULL) - return -EFAULT; - pdev = video_get_drvdata(vdev); - if (pdev == NULL) - return -EFAULT; + if (!pdev->udev) + return POLL_ERR; - /* Start the stream (if not already started) */ - ret = pwc_isoc_init(pdev); - if (ret) - return ret; + return vb2_poll(&pdev->vb_queue, file, wait); +} + +static int pwc_video_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct video_device *vdev = file->private_data; + struct pwc_device *pdev = video_get_drvdata(vdev); + + if (pdev->capt_file != file) + return -EBUSY; + + return vb2_mmap(&pdev->vb_queue, vma); +} + +/***************************************************************************/ +/* Videobuf2 operations */ + +static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, + unsigned int *nbuffers, unsigned int *nplanes, + unsigned int sizes[], void *alloc_ctxs[]) +{ + struct pwc_device *pdev = vb2_get_drv_priv(vq); + + if (*nbuffers < MIN_FRAMES) + *nbuffers = MIN_FRAMES; + else if (*nbuffers > MAX_FRAMES) + *nbuffers = MAX_FRAMES; + + *nplanes = 1; - poll_wait(file, &pdev->frameq, wait); - if (pdev->error_status) - return POLLERR; - if (pdev->full_frames != NULL) /* we have frames waiting */ - return (POLLIN | POLLRDNORM); + sizes[0] = PAGE_ALIGN((pdev->abs_max.x * pdev->abs_max.y * 3) / 2); return 0; } -static int pwc_video_mmap(struct file *file, struct vm_area_struct *vma) +static int buffer_init(struct vb2_buffer *vb) { - struct video_device *vdev = file->private_data; - struct pwc_device *pdev; - unsigned long start; - unsigned long size; - unsigned long page, pos = 0; - int index; + struct pwc_frame_buf *buf = container_of(vb, struct pwc_frame_buf, vb); - PWC_DEBUG_MEMORY(">> %s\n", __func__); - pdev = video_get_drvdata(vdev); - size = vma->vm_end - vma->vm_start; - start = vma->vm_start; + /* need vmalloc since frame buffer > 128K */ + buf->data = vzalloc(PWC_FRAME_SIZE); + if (buf->data == NULL) + return -ENOMEM; - /* Find the idx buffer for this mapping */ - for (index = 0; index < pwc_mbufs; index++) { - pos = pdev->images[index].offset; - if ((pos>>PAGE_SHIFT) == vma->vm_pgoff) - break; + return 0; +} + +static int buffer_prepare(struct vb2_buffer *vb) +{ + struct pwc_device *pdev = vb2_get_drv_priv(vb->vb2_queue); + + /* Don't allow queing new buffers after device disconnection */ + if (!pdev->udev) + return -ENODEV; + + return 0; +} + +static int buffer_finish(struct vb2_buffer *vb) +{ + struct pwc_device *pdev = vb2_get_drv_priv(vb->vb2_queue); + struct pwc_frame_buf *buf = container_of(vb, struct pwc_frame_buf, vb); + + /* + * Application has called dqbuf and is getting back a buffer we've + * filled, take the pwc data we've stored in buf->data and decompress + * it into a usable format, storing the result in the vb2_buffer + */ + return pwc_decompress(pdev, buf); +} + +static void buffer_cleanup(struct vb2_buffer *vb) +{ + struct pwc_frame_buf *buf = container_of(vb, struct pwc_frame_buf, vb); + + vfree(buf->data); +} + +static void buffer_queue(struct vb2_buffer *vb) +{ + struct pwc_device *pdev = vb2_get_drv_priv(vb->vb2_queue); + struct pwc_frame_buf *buf = container_of(vb, struct pwc_frame_buf, vb); + unsigned long flags = 0; + + spin_lock_irqsave(&pdev->queued_bufs_lock, flags); + list_add_tail(&buf->list, &pdev->queued_bufs); + spin_unlock_irqrestore(&pdev->queued_bufs_lock, flags); +} + +static int start_streaming(struct vb2_queue *vq, unsigned int count) +{ + struct pwc_device *pdev = vb2_get_drv_priv(vq); + + if (!pdev->udev) + return -ENODEV; + + /* Turn on camera and set LEDS on */ + pwc_camera_power(pdev, 1); + if (pdev->power_save) { + /* Restore video mode */ + pwc_set_video_mode(pdev, pdev->view.x, pdev->view.y, + pdev->vframes, pdev->vcompression, + pdev->vsnapshot); } - if (index == MAX_IMAGES) - return -EINVAL; - if (index == 0) { - /* - * Special case for v4l1. In v4l1, we map only one big buffer, - * but in v4l2 each buffer is mapped - */ - unsigned long total_size; - total_size = pwc_mbufs * pdev->len_per_image; - if (size != pdev->len_per_image && size != total_size) { - PWC_ERROR("Wrong size (%lu) needed to be len_per_image=%d or total_size=%lu\n", - size, pdev->len_per_image, total_size); - return -EINVAL; - } - } else if (size > pdev->len_per_image) - return -EINVAL; - - vma->vm_flags |= VM_IO; /* from 2.6.9-acX */ - - pos += (unsigned long)pdev->image_data; - while (size > 0) { - page = vmalloc_to_pfn((void *)pos); - if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) - return -EAGAIN; - start += PAGE_SIZE; - pos += PAGE_SIZE; - if (size > PAGE_SIZE) - size -= PAGE_SIZE; - else - size = 0; + pwc_set_leds(pdev, led_on, led_off); + + return pwc_isoc_init(pdev); +} + +static int stop_streaming(struct vb2_queue *vq) +{ + struct pwc_device *pdev = vb2_get_drv_priv(vq); + + if (pdev->udev) { + pwc_set_leds(pdev, 0, 0); + pwc_camera_power(pdev, 0); + pwc_isoc_cleanup(pdev); } + pwc_cleanup_queued_bufs(pdev); + return 0; } +static void pwc_lock(struct vb2_queue *vq) +{ + struct pwc_device *pdev = vb2_get_drv_priv(vq); + mutex_lock(&pdev->modlock); +} + +static void pwc_unlock(struct vb2_queue *vq) +{ + struct pwc_device *pdev = vb2_get_drv_priv(vq); + mutex_unlock(&pdev->modlock); +} + +static struct vb2_ops pwc_vb_queue_ops = { + .queue_setup = queue_setup, + .buf_init = buffer_init, + .buf_prepare = buffer_prepare, + .buf_finish = buffer_finish, + .buf_cleanup = buffer_cleanup, + .buf_queue = buffer_queue, + .start_streaming = start_streaming, + .stop_streaming = stop_streaming, + .wait_prepare = pwc_unlock, + .wait_finish = pwc_lock, +}; + /***************************************************************************/ /* USB functions */ @@ -1406,6 +890,7 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id int hint, rc; int features = 0; int video_nr = -1; /* default: use next available device */ + int my_power_save = power_save; char serial_number[30], *name; vendor_id = le16_to_cpu(udev->descriptor.idVendor); @@ -1513,6 +998,8 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id PWC_INFO("Logitech QuickCam 4000 Pro USB webcam detected.\n"); name = "Logitech QuickCam Pro 4000"; type_id = 740; /* CCD sensor */ + if (my_power_save == -1) + my_power_save = 1; break; case 0x08b3: PWC_INFO("Logitech QuickCam Zoom USB webcam detected.\n"); @@ -1523,12 +1010,15 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id PWC_INFO("Logitech QuickCam Zoom (new model) USB webcam detected.\n"); name = "Logitech QuickCam Zoom"; type_id = 740; /* CCD sensor */ - power_save = 1; + if (my_power_save == -1) + my_power_save = 1; break; case 0x08b5: PWC_INFO("Logitech QuickCam Orbit/Sphere USB webcam detected.\n"); name = "Logitech QuickCam Orbit"; type_id = 740; /* CCD sensor */ + if (my_power_save == -1) + my_power_save = 1; features |= FEATURE_MOTOR_PANTILT; break; case 0x08b6: @@ -1583,6 +1073,8 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id PWC_INFO("Creative Labs Webcam 5 detected.\n"); name = "Creative Labs Webcam 5"; type_id = 730; + if (my_power_save == -1) + my_power_save = 1; break; case 0x4011: PWC_INFO("Creative Labs Webcam Pro Ex detected.\n"); @@ -1640,6 +1132,9 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id else return -ENODEV; /* Not any of the know types; but the list keeps growing. */ + if (my_power_save == -1) + my_power_save = 0; + memset(serial_number, 0, 30); usb_string(udev, udev->descriptor.iSerialNumber, serial_number, 29); PWC_DEBUG_PROBE("Device serial number is %s\n", serial_number); @@ -1654,7 +1149,6 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id return -ENOMEM; } pdev->type = type_id; - pdev->vsize = default_size; pdev->vframes = default_fps; strcpy(pdev->serial, serial_number); pdev->features = features; @@ -1668,13 +1162,26 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id pdev->angle_range.tilt_min = -3000; pdev->angle_range.tilt_max = 2500; } + pwc_construct(pdev); /* set min/max sizes correct */ mutex_init(&pdev->modlock); - spin_lock_init(&pdev->ptrlock); + mutex_init(&pdev->udevlock); + spin_lock_init(&pdev->queued_bufs_lock); + INIT_LIST_HEAD(&pdev->queued_bufs); pdev->udev = udev; - init_waitqueue_head(&pdev->frameq); pdev->vcompression = pwc_preferred_compression; + pdev->power_save = my_power_save; + + /* Init videobuf2 queue structure */ + memset(&pdev->vb_queue, 0, sizeof(pdev->vb_queue)); + pdev->vb_queue.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + pdev->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; + pdev->vb_queue.drv_priv = pdev; + pdev->vb_queue.buf_struct_size = sizeof(struct pwc_frame_buf); + pdev->vb_queue.ops = &pwc_vb_queue_ops; + pdev->vb_queue.mem_ops = &vb2_vmalloc_memops; + vb2_queue_init(&pdev->vb_queue); /* Init video_device structure */ memcpy(&pdev->vdev, &pwc_template, sizeof(pwc_template)); @@ -1707,14 +1214,40 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id PWC_DEBUG_PROBE("probe() function returning struct at 0x%p.\n", pdev); usb_set_intfdata(intf, pdev); +#ifdef CONFIG_USB_PWC_DEBUG + /* Query sensor type */ + if (pwc_get_cmos_sensor(pdev, &rc) >= 0) { + PWC_DEBUG_OPEN("This %s camera is equipped with a %s (%d).\n", + pdev->vdev.name, + pwc_sensor_type_to_string(rc), rc); + } +#endif + /* Set the leds off */ pwc_set_leds(pdev, 0, 0); + + /* Setup intial videomode */ + rc = pwc_set_video_mode(pdev, pdev->view_max.x, pdev->view_max.y, + pdev->vframes, pdev->vcompression, 0); + if (rc) + goto err_free_mem; + + /* Register controls (and read default values from camera */ + rc = pwc_init_controls(pdev); + if (rc) { + PWC_ERROR("Failed to register v4l2 controls (%d).\n", rc); + goto err_free_mem; + } + + pdev->vdev.ctrl_handler = &pdev->ctrl_handler; + + /* And powerdown the camera until streaming starts */ pwc_camera_power(pdev, 0); rc = video_register_device(&pdev->vdev, VFL_TYPE_GRABBER, video_nr); if (rc < 0) { PWC_ERROR("Failed to register as video device (%d).\n", rc); - goto err_free_mem; + goto err_free_controls; } rc = pwc_create_sysfs_files(pdev); if (rc) @@ -1757,7 +1290,10 @@ err_video_unreg: if (hint < MAX_DEV_HINTS) device_hint[hint].pdev = NULL; video_unregister_device(&pdev->vdev); +err_free_controls: + v4l2_ctrl_handler_free(&pdev->ctrl_handler); err_free_mem: + usb_set_intfdata(intf, NULL); kfree(pdev); return rc; } @@ -1767,33 +1303,17 @@ static void usb_pwc_disconnect(struct usb_interface *intf) { struct pwc_device *pdev = usb_get_intfdata(intf); + mutex_lock(&pdev->udevlock); mutex_lock(&pdev->modlock); - usb_set_intfdata (intf, NULL); - if (pdev == NULL) { - PWC_ERROR("pwc_disconnect() Called without private pointer.\n"); - goto disconnect_out; - } - if (pdev->udev == NULL) { - PWC_ERROR("pwc_disconnect() already called for %p\n", pdev); - goto disconnect_out; - } - if (pdev->udev != interface_to_usbdev(intf)) { - PWC_ERROR("pwc_disconnect() Woops: pointer mismatch udev/pdev.\n"); - goto disconnect_out; - } - - /* We got unplugged; this is signalled by an EPIPE error code */ - pdev->error_status = EPIPE; - pdev->unplugged = 1; - - /* Alert waiting processes */ - wake_up_interruptible(&pdev->frameq); + usb_set_intfdata(intf, NULL); /* No need to keep the urbs around after disconnection */ pwc_isoc_cleanup(pdev); + pwc_cleanup_queued_bufs(pdev); + pdev->udev = NULL; -disconnect_out: mutex_unlock(&pdev->modlock); + mutex_unlock(&pdev->udevlock); pwc_remove_sysfs_files(pdev); video_unregister_device(&pdev->vdev); @@ -1809,36 +1329,27 @@ disconnect_out: * Initialization code & module stuff */ -static char *size; static int fps; -static int fbufs; -static int mbufs; static int compression = -1; static int leds[2] = { -1, -1 }; static unsigned int leds_nargs; static char *dev_hint[MAX_DEV_HINTS]; static unsigned int dev_hint_nargs; -module_param(size, charp, 0444); module_param(fps, int, 0444); -module_param(fbufs, int, 0444); -module_param(mbufs, int, 0444); #ifdef CONFIG_USB_PWC_DEBUG module_param_named(trace, pwc_trace, int, 0644); #endif -module_param(power_save, int, 0444); +module_param(power_save, int, 0644); module_param(compression, int, 0444); module_param_array(leds, int, &leds_nargs, 0444); module_param_array(dev_hint, charp, &dev_hint_nargs, 0444); -MODULE_PARM_DESC(size, "Initial image size. One of sqcif, qsif, qcif, sif, cif, vga"); MODULE_PARM_DESC(fps, "Initial frames per second. Varies with model, useful range 5-30"); -MODULE_PARM_DESC(fbufs, "Number of internal frame buffers to reserve"); -MODULE_PARM_DESC(mbufs, "Number of external (mmap()ed) image buffers"); #ifdef CONFIG_USB_PWC_DEBUG MODULE_PARM_DESC(trace, "For debugging purposes"); #endif -MODULE_PARM_DESC(power_save, "Turn power save feature in camera on or off"); +MODULE_PARM_DESC(power_save, "Turn power saving for new cameras on or off"); MODULE_PARM_DESC(compression, "Preferred compression quality. Range 0 (uncompressed) to 3 (high compression)"); MODULE_PARM_DESC(leds, "LED on,off time in milliseconds"); MODULE_PARM_DESC(dev_hint, "Device node hints"); @@ -1851,14 +1362,19 @@ MODULE_VERSION( PWC_VERSION ); static int __init usb_pwc_init(void) { - int i, sz; - char *sizenames[PSZ_MAX] = { "sqcif", "qsif", "qcif", "sif", "cif", "vga" }; + int i; +#ifdef CONFIG_USB_PWC_DEBUG PWC_INFO("Philips webcam module version " PWC_VERSION " loaded.\n"); PWC_INFO("Supports Philips PCA645/646, PCVC675/680/690, PCVC720[40]/730/740/750 & PCVC830/840.\n"); PWC_INFO("Also supports the Askey VC010, various Logitech Quickcams, Samsung MPC-C10 and MPC-C30,\n"); PWC_INFO("the Creative WebCam 5 & Pro Ex, SOTEC Afina Eye and Visionite VCS-UC300 and VCS-UM100.\n"); + if (pwc_trace >= 0) { + PWC_DEBUG_MODULE("Trace options: 0x%04x\n", pwc_trace); + } +#endif + if (fps) { if (fps < 4 || fps > 30) { PWC_ERROR("Framerate out of bounds (4-30).\n"); @@ -1868,41 +1384,6 @@ static int __init usb_pwc_init(void) PWC_DEBUG_MODULE("Default framerate set to %d.\n", default_fps); } - if (size) { - /* string; try matching with array */ - for (sz = 0; sz < PSZ_MAX; sz++) { - if (!strcmp(sizenames[sz], size)) { /* Found! */ - default_size = sz; - break; - } - } - if (sz == PSZ_MAX) { - PWC_ERROR("Size not recognized; try size=[sqcif | qsif | qcif | sif | cif | vga].\n"); - return -EINVAL; - } - PWC_DEBUG_MODULE("Default image size set to %s [%dx%d].\n", sizenames[default_size], pwc_image_sizes[default_size].x, pwc_image_sizes[default_size].y); - } - if (mbufs) { - if (mbufs < 1 || mbufs > MAX_IMAGES) { - PWC_ERROR("Illegal number of mmap() buffers; use a number between 1 and %d.\n", MAX_IMAGES); - return -EINVAL; - } - pwc_mbufs = mbufs; - PWC_DEBUG_MODULE("Number of image buffers set to %d.\n", pwc_mbufs); - } - if (fbufs) { - if (fbufs < 2 || fbufs > MAX_FRAMES) { - PWC_ERROR("Illegal number of frame buffers; use a number between 2 and %d.\n", MAX_FRAMES); - return -EINVAL; - } - default_fbufs = fbufs; - PWC_DEBUG_MODULE("Number of frame buffers set to %d.\n", default_fbufs); - } -#ifdef CONFIG_USB_PWC_DEBUG - if (pwc_trace >= 0) { - PWC_DEBUG_MODULE("Trace options: 0x%04x\n", pwc_trace); - } -#endif if (compression >= 0) { if (compression > 3) { PWC_ERROR("Invalid compression setting; use a number between 0 (uncompressed) and 3 (high).\n"); @@ -1911,8 +1392,6 @@ static int __init usb_pwc_init(void) pwc_preferred_compression = compression; PWC_DEBUG_MODULE("Preferred compression set to %d.\n", pwc_preferred_compression); } - if (power_save) - PWC_DEBUG_MODULE("Enabling power save on open/close.\n"); if (leds[0] >= 0) led_on = leds[0]; if (leds[1] >= 0) diff --git a/drivers/media/video/pwc/pwc-ioctl.h b/drivers/media/video/pwc/pwc-ioctl.h deleted file mode 100644 index 8c0cae7..0000000 --- a/drivers/media/video/pwc/pwc-ioctl.h +++ /dev/null @@ -1,323 +0,0 @@ -#ifndef PWC_IOCTL_H -#define PWC_IOCTL_H - -/* (C) 2001-2004 Nemosoft Unv. - (C) 2004-2006 Luc Saillard (luc@saillard.org) - - NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx - driver and thus may have bugs that are not present in the original version. - Please send bug reports and support requests to <luc@saillard.org>. - The decompression routines have been implemented by reverse-engineering the - Nemosoft binary pwcx module. Caveat emptor. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -*/ - -/* This is pwc-ioctl.h belonging to PWC 10.0.10 - It contains structures and defines to communicate from user space - directly to the driver. - */ - -/* - Changes - 2001/08/03 Alvarado Added ioctl constants to access methods for - changing white balance and red/blue gains - 2002/12/15 G. H. Fernandez-Toribio VIDIOCGREALSIZE - 2003/12/13 Nemosft Unv. Some modifications to make interfacing to - PWCX easier - */ - -/* These are private ioctl() commands, specific for the Philips webcams. - They contain functions not found in other webcams, and settings not - specified in the Video4Linux API. - - The #define names are built up like follows: - VIDIOC VIDeo IOCtl prefix - PWC Philps WebCam - G optional: Get - S optional: Set - ... the function - */ - -#include <linux/types.h> -#include <linux/version.h> - - /* Enumeration of image sizes */ -#define PSZ_SQCIF 0x00 -#define PSZ_QSIF 0x01 -#define PSZ_QCIF 0x02 -#define PSZ_SIF 0x03 -#define PSZ_CIF 0x04 -#define PSZ_VGA 0x05 -#define PSZ_MAX 6 - - -/* The frame rate is encoded in the video_window.flags parameter using - the upper 16 bits, since some flags are defined nowadays. The following - defines provide a mask and shift to filter out this value. - This value can also be passing using the private flag when using v4l2 and - VIDIOC_S_FMT ioctl. - - In 'Snapshot' mode the camera freezes its automatic exposure and colour - balance controls. - */ -#define PWC_FPS_SHIFT 16 -#define PWC_FPS_MASK 0x00FF0000 -#define PWC_FPS_FRMASK 0x003F0000 -#define PWC_FPS_SNAPSHOT 0x00400000 -#define PWC_QLT_MASK 0x03000000 -#define PWC_QLT_SHIFT 24 - - -/* structure for transferring x & y coordinates */ -struct pwc_coord -{ - int x, y; /* guess what */ - int size; /* size, or offset */ -}; - - -/* Used with VIDIOCPWCPROBE */ -struct pwc_probe -{ - char name[32]; - int type; -}; - -struct pwc_serial -{ - char serial[30]; /* String with serial number. Contains terminating 0 */ -}; - -/* pwc_whitebalance.mode values */ -#define PWC_WB_INDOOR 0 -#define PWC_WB_OUTDOOR 1 -#define PWC_WB_FL 2 -#define PWC_WB_MANUAL 3 -#define PWC_WB_AUTO 4 - -/* Used with VIDIOCPWC[SG]AWB (Auto White Balance). - Set mode to one of the PWC_WB_* values above. - *red and *blue are the respective gains of these colour components inside - the camera; range 0..65535 - When 'mode' == PWC_WB_MANUAL, 'manual_red' and 'manual_blue' are set or read; - otherwise undefined. - 'read_red' and 'read_blue' are read-only. -*/ -struct pwc_whitebalance -{ - int mode; - int manual_red, manual_blue; /* R/W */ - int read_red, read_blue; /* R/O */ -}; - -/* - 'control_speed' and 'control_delay' are used in automatic whitebalance mode, - and tell the camera how fast it should react to changes in lighting, and - with how much delay. Valid values are 0..65535. -*/ -struct pwc_wb_speed -{ - int control_speed; - int control_delay; - -}; - -/* Used with VIDIOCPWC[SG]LED */ -struct pwc_leds -{ - int led_on; /* Led on-time; range = 0..25000 */ - int led_off; /* Led off-time; range = 0..25000 */ -}; - -/* Image size (used with GREALSIZE) */ -struct pwc_imagesize -{ - int width; - int height; -}; - -/* Defines and structures for Motorized Pan & Tilt */ -#define PWC_MPT_PAN 0x01 -#define PWC_MPT_TILT 0x02 -#define PWC_MPT_TIMEOUT 0x04 /* for status */ - -/* Set angles; when absolute != 0, the angle is absolute and the - driver calculates the relative offset for you. This can only - be used with VIDIOCPWCSANGLE; VIDIOCPWCGANGLE always returns - absolute angles. - */ -struct pwc_mpt_angles -{ - int absolute; /* write-only */ - int pan; /* degrees * 100 */ - int tilt; /* degress * 100 */ -}; - -/* Range of angles of the camera, both horizontally and vertically. - */ -struct pwc_mpt_range -{ - int pan_min, pan_max; /* degrees * 100 */ - int tilt_min, tilt_max; -}; - -struct pwc_mpt_status -{ - int status; - int time_pan; - int time_tilt; -}; - - -/* This is used for out-of-kernel decompression. With it, you can get - all the necessary information to initialize and use the decompressor - routines in standalone applications. - */ -struct pwc_video_command -{ - int type; /* camera type (645, 675, 730, etc.) */ - int release; /* release number */ - - int size; /* one of PSZ_* */ - int alternate; - int command_len; /* length of USB video command */ - unsigned char command_buf[13]; /* Actual USB video command */ - int bandlength; /* >0 = compressed */ - int frame_size; /* Size of one (un)compressed frame */ -}; - -/* Flags for PWCX subroutines. Not all modules honour all flags. */ -#define PWCX_FLAG_PLANAR 0x0001 -#define PWCX_FLAG_BAYER 0x0008 - - -/* IOCTL definitions */ - - /* Restore user settings */ -#define VIDIOCPWCRUSER _IO('v', 192) - /* Save user settings */ -#define VIDIOCPWCSUSER _IO('v', 193) - /* Restore factory settings */ -#define VIDIOCPWCFACTORY _IO('v', 194) - - /* You can manipulate the compression factor. A compression preference of 0 - means use uncompressed modes when available; 1 is low compression, 2 is - medium and 3 is high compression preferred. Of course, the higher the - compression, the lower the bandwidth used but more chance of artefacts - in the image. The driver automatically chooses a higher compression when - the preferred mode is not available. - */ - /* Set preferred compression quality (0 = uncompressed, 3 = highest compression) */ -#define VIDIOCPWCSCQUAL _IOW('v', 195, int) - /* Get preferred compression quality */ -#define VIDIOCPWCGCQUAL _IOR('v', 195, int) - - -/* Retrieve serial number of camera */ -#define VIDIOCPWCGSERIAL _IOR('v', 198, struct pwc_serial) - - /* This is a probe function; since so many devices are supported, it - becomes difficult to include all the names in programs that want to - check for the enhanced Philips stuff. So in stead, try this PROBE; - it returns a structure with the original name, and the corresponding - Philips type. - To use, fill the structure with zeroes, call PROBE and if that succeeds, - compare the name with that returned from VIDIOCGCAP; they should be the - same. If so, you can be assured it is a Philips (OEM) cam and the type - is valid. - */ -#define VIDIOCPWCPROBE _IOR('v', 199, struct pwc_probe) - - /* Set AGC (Automatic Gain Control); int < 0 = auto, 0..65535 = fixed */ -#define VIDIOCPWCSAGC _IOW('v', 200, int) - /* Get AGC; int < 0 = auto; >= 0 = fixed, range 0..65535 */ -#define VIDIOCPWCGAGC _IOR('v', 200, int) - /* Set shutter speed; int < 0 = auto; >= 0 = fixed, range 0..65535 */ -#define VIDIOCPWCSSHUTTER _IOW('v', 201, int) - - /* Color compensation (Auto White Balance) */ -#define VIDIOCPWCSAWB _IOW('v', 202, struct pwc_whitebalance) -#define VIDIOCPWCGAWB _IOR('v', 202, struct pwc_whitebalance) - - /* Auto WB speed */ -#define VIDIOCPWCSAWBSPEED _IOW('v', 203, struct pwc_wb_speed) -#define VIDIOCPWCGAWBSPEED _IOR('v', 203, struct pwc_wb_speed) - - /* LEDs on/off/blink; int range 0..65535 */ -#define VIDIOCPWCSLED _IOW('v', 205, struct pwc_leds) -#define VIDIOCPWCGLED _IOR('v', 205, struct pwc_leds) - - /* Contour (sharpness); int < 0 = auto, 0..65536 = fixed */ -#define VIDIOCPWCSCONTOUR _IOW('v', 206, int) -#define VIDIOCPWCGCONTOUR _IOR('v', 206, int) - - /* Backlight compensation; 0 = off, otherwise on */ -#define VIDIOCPWCSBACKLIGHT _IOW('v', 207, int) -#define VIDIOCPWCGBACKLIGHT _IOR('v', 207, int) - - /* Flickerless mode; = 0 off, otherwise on */ -#define VIDIOCPWCSFLICKER _IOW('v', 208, int) -#define VIDIOCPWCGFLICKER _IOR('v', 208, int) - - /* Dynamic noise reduction; 0 off, 3 = high noise reduction */ -#define VIDIOCPWCSDYNNOISE _IOW('v', 209, int) -#define VIDIOCPWCGDYNNOISE _IOR('v', 209, int) - - /* Real image size as used by the camera; tells you whether or not there's a gray border around the image */ -#define VIDIOCPWCGREALSIZE _IOR('v', 210, struct pwc_imagesize) - - /* Motorized pan & tilt functions */ -#define VIDIOCPWCMPTRESET _IOW('v', 211, int) -#define VIDIOCPWCMPTGRANGE _IOR('v', 211, struct pwc_mpt_range) -#define VIDIOCPWCMPTSANGLE _IOW('v', 212, struct pwc_mpt_angles) -#define VIDIOCPWCMPTGANGLE _IOR('v', 212, struct pwc_mpt_angles) -#define VIDIOCPWCMPTSTATUS _IOR('v', 213, struct pwc_mpt_status) - - /* Get the USB set-video command; needed for initializing libpwcx */ -#define VIDIOCPWCGVIDCMD _IOR('v', 215, struct pwc_video_command) -struct pwc_table_init_buffer { - int len; - char *buffer; - -}; -#define VIDIOCPWCGVIDTABLE _IOR('v', 216, struct pwc_table_init_buffer) - -/* - * This is private command used when communicating with v4l2. - * In the future all private ioctl will be remove/replace to - * use interface offer by v4l2. - */ - -#define V4L2_CID_PRIVATE_SAVE_USER (V4L2_CID_PRIVATE_BASE + 0) -#define V4L2_CID_PRIVATE_RESTORE_USER (V4L2_CID_PRIVATE_BASE + 1) -#define V4L2_CID_PRIVATE_RESTORE_FACTORY (V4L2_CID_PRIVATE_BASE + 2) -#define V4L2_CID_PRIVATE_COLOUR_MODE (V4L2_CID_PRIVATE_BASE + 3) -#define V4L2_CID_PRIVATE_AUTOCONTOUR (V4L2_CID_PRIVATE_BASE + 4) -#define V4L2_CID_PRIVATE_CONTOUR (V4L2_CID_PRIVATE_BASE + 5) -#define V4L2_CID_PRIVATE_BACKLIGHT (V4L2_CID_PRIVATE_BASE + 6) -#define V4L2_CID_PRIVATE_FLICKERLESS (V4L2_CID_PRIVATE_BASE + 7) -#define V4L2_CID_PRIVATE_NOISE_REDUCTION (V4L2_CID_PRIVATE_BASE + 8) - -struct pwc_raw_frame { - __le16 type; /* type of the webcam */ - __le16 vbandlength; /* Size of 4lines compressed (used by the decompressor) */ - __u8 cmd[4]; /* the four byte of the command (in case of nala, - only the first 3 bytes is filled) */ - __u8 rawframe[0]; /* frame_size = H/4*vbandlength */ -} __attribute__ ((packed)); - - -#endif diff --git a/drivers/media/video/pwc/pwc-kiara.c b/drivers/media/video/pwc/pwc-kiara.c index f4ae83c..e5f4fd8 100644 --- a/drivers/media/video/pwc/pwc-kiara.c +++ b/drivers/media/video/pwc/pwc-kiara.c @@ -40,7 +40,6 @@ #include "pwc-kiara.h" -#include "pwc-uncompress.h" const unsigned int Kiara_fps_vector[PWC_FPS_MAX_KIARA] = { 5, 10, 15, 20, 25, 30 }; diff --git a/drivers/media/video/pwc/pwc-misc.c b/drivers/media/video/pwc/pwc-misc.c index 6af5bb5..0b03133 100644 --- a/drivers/media/video/pwc/pwc-misc.c +++ b/drivers/media/video/pwc/pwc-misc.c @@ -126,8 +126,4 @@ void pwc_construct(struct pwc_device *pdev) pdev->pixfmt = V4L2_PIX_FMT_YUV420; /* default */ pdev->view_min.size = pdev->view_min.x * pdev->view_min.y; pdev->view_max.size = pdev->view_max.x * pdev->view_max.y; - /* length of image, in YUV format; always allocate enough memory. */ - pdev->len_per_image = PAGE_ALIGN((pdev->abs_max.x * pdev->abs_max.y * 3) / 2); } - - diff --git a/drivers/media/video/pwc/pwc-uncompress.c b/drivers/media/video/pwc/pwc-uncompress.c index 3b73f29..5126509 100644 --- a/drivers/media/video/pwc/pwc-uncompress.c +++ b/drivers/media/video/pwc/pwc-uncompress.c @@ -30,26 +30,17 @@ #include <asm/types.h> #include "pwc.h" -#include "pwc-uncompress.h" #include "pwc-dec1.h" #include "pwc-dec23.h" -int pwc_decompress(struct pwc_device *pdev) +int pwc_decompress(struct pwc_device *pdev, struct pwc_frame_buf *fbuf) { - struct pwc_frame_buf *fbuf; int n, line, col, stride; void *yuv, *image; u16 *src; u16 *dsty, *dstu, *dstv; - if (pdev == NULL) - return -EFAULT; - - fbuf = pdev->read_frame; - if (fbuf == NULL) - return -EFAULT; - image = pdev->image_data; - image += pdev->images[pdev->fill_image].offset; + image = vb2_plane_vaddr(&fbuf->vb, 0); yuv = fbuf->data + pdev->frame_header_size; /* Skip header */ @@ -64,9 +55,13 @@ int pwc_decompress(struct pwc_device *pdev) * determine this using the type of the webcam */ memcpy(raw_frame->cmd, pdev->cmd_buf, 4); memcpy(raw_frame+1, yuv, pdev->frame_size); + vb2_set_plane_payload(&fbuf->vb, 0, + pdev->frame_size + sizeof(struct pwc_raw_frame)); return 0; } + vb2_set_plane_payload(&fbuf->vb, 0, pdev->view.size); + if (pdev->vbandlength == 0) { /* Uncompressed mode. * We copy the data into the output buffer, using the viewport diff --git a/drivers/media/video/pwc/pwc-uncompress.h b/drivers/media/video/pwc/pwc-uncompress.h deleted file mode 100644 index 43028e7..0000000 --- a/drivers/media/video/pwc/pwc-uncompress.h +++ /dev/null @@ -1,40 +0,0 @@ -/* (C) 1999-2003 Nemosoft Unv. - (C) 2004-2006 Luc Saillard (luc@saillard.org) - - NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx - driver and thus may have bugs that are not present in the original version. - Please send bug reports and support requests to <luc@saillard.org>. - The decompression routines have been implemented by reverse-engineering the - Nemosoft binary pwcx module. Caveat emptor. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -*/ - -/* This file is the bridge between the kernel module and the plugin; it - describes the structures and datatypes used in both modules. Any - significant change should be reflected by increasing the - pwc_decompressor_version major number. - */ -#ifndef PWC_UNCOMPRESS_H -#define PWC_UNCOMPRESS_H - - -#include <media/pwc-ioctl.h> - -/* from pwc-dec.h */ -#define PWCX_FLAG_PLANAR 0x0001 -/* */ - -#endif diff --git a/drivers/media/video/pwc/pwc-v4l.c b/drivers/media/video/pwc/pwc-v4l.c index f85c512..a10ff6b 100644 --- a/drivers/media/video/pwc/pwc-v4l.c +++ b/drivers/media/video/pwc/pwc-v4l.c @@ -2,6 +2,7 @@ USB and Video4Linux interface part. (C) 1999-2004 Nemosoft Unv. (C) 2004-2006 Luc Saillard (luc@saillard.org) + (C) 2011 Hans de Goede <hdegoede@redhat.com> NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx driver and thus may have bugs that are not present in the original version. @@ -31,184 +32,330 @@ #include <linux/module.h> #include <linux/poll.h> #include <linux/vmalloc.h> +#include <linux/jiffies.h> #include <asm/io.h> #include "pwc.h" -static struct v4l2_queryctrl pwc_controls[] = { - { - .id = V4L2_CID_BRIGHTNESS, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Brightness", - .minimum = 0, - .maximum = 128, - .step = 1, - .default_value = 64, - }, - { - .id = V4L2_CID_CONTRAST, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Contrast", - .minimum = 0, - .maximum = 64, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_SATURATION, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Saturation", - .minimum = -100, - .maximum = 100, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_GAMMA, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Gamma", - .minimum = 0, - .maximum = 32, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_RED_BALANCE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Red Gain", - .minimum = 0, - .maximum = 256, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_BLUE_BALANCE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Blue Gain", - .minimum = 0, - .maximum = 256, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_AUTO_WHITE_BALANCE, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Auto White Balance", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_EXPOSURE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Shutter Speed (Exposure)", - .minimum = 0, - .maximum = 256, - .step = 1, - .default_value = 200, - }, - { - .id = V4L2_CID_AUTOGAIN, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Auto Gain Enabled", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 1, - }, - { - .id = V4L2_CID_GAIN, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Gain Level", - .minimum = 0, - .maximum = 256, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_SAVE_USER, - .type = V4L2_CTRL_TYPE_BUTTON, - .name = "Save User Settings", - .minimum = 0, - .maximum = 0, - .step = 0, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_RESTORE_USER, - .type = V4L2_CTRL_TYPE_BUTTON, - .name = "Restore User Settings", - .minimum = 0, - .maximum = 0, - .step = 0, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_RESTORE_FACTORY, - .type = V4L2_CTRL_TYPE_BUTTON, - .name = "Restore Factory Settings", - .minimum = 0, - .maximum = 0, - .step = 0, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_COLOUR_MODE, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Colour mode", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_AUTOCONTOUR, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Auto contour", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_CONTOUR, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Contour", - .minimum = 0, - .maximum = 63, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_BACKLIGHT, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Backlight compensation", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_FLICKERLESS, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Flickerless", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_NOISE_REDUCTION, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Noise reduction", - .minimum = 0, - .maximum = 3, - .step = 1, - .default_value = 0, - }, +#define PWC_CID_CUSTOM(ctrl) ((V4L2_CID_USER_BASE | 0xf000) + custom_ ## ctrl) + +static int pwc_g_volatile_ctrl(struct v4l2_ctrl *ctrl); +static int pwc_s_ctrl(struct v4l2_ctrl *ctrl); + +static const struct v4l2_ctrl_ops pwc_ctrl_ops = { + .g_volatile_ctrl = pwc_g_volatile_ctrl, + .s_ctrl = pwc_s_ctrl, +}; + +enum { awb_indoor, awb_outdoor, awb_fl, awb_manual, awb_auto }; +enum { custom_autocontour, custom_contour, custom_noise_reduction, + custom_save_user, custom_restore_user, custom_restore_factory }; + +const char * const pwc_auto_whitebal_qmenu[] = { + "Indoor (Incandescant Lighting) Mode", + "Outdoor (Sunlight) Mode", + "Indoor (Fluorescent Lighting) Mode", + "Manual Mode", + "Auto Mode", + NULL +}; + +static const struct v4l2_ctrl_config pwc_auto_white_balance_cfg = { + .ops = &pwc_ctrl_ops, + .id = V4L2_CID_AUTO_WHITE_BALANCE, + .type = V4L2_CTRL_TYPE_MENU, + .max = awb_auto, + .qmenu = pwc_auto_whitebal_qmenu, +}; + +static const struct v4l2_ctrl_config pwc_autocontour_cfg = { + .ops = &pwc_ctrl_ops, + .id = PWC_CID_CUSTOM(autocontour), + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Auto contour", + .min = 0, + .max = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config pwc_contour_cfg = { + .ops = &pwc_ctrl_ops, + .id = PWC_CID_CUSTOM(contour), + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Contour", + .flags = V4L2_CTRL_FLAG_SLIDER, + .min = 0, + .max = 63, + .step = 1, }; +static const struct v4l2_ctrl_config pwc_backlight_cfg = { + .ops = &pwc_ctrl_ops, + .id = V4L2_CID_BACKLIGHT_COMPENSATION, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .min = 0, + .max = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config pwc_flicker_cfg = { + .ops = &pwc_ctrl_ops, + .id = V4L2_CID_BAND_STOP_FILTER, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .min = 0, + .max = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config pwc_noise_reduction_cfg = { + .ops = &pwc_ctrl_ops, + .id = PWC_CID_CUSTOM(noise_reduction), + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Dynamic Noise Reduction", + .min = 0, + .max = 3, + .step = 1, +}; + +static const struct v4l2_ctrl_config pwc_save_user_cfg = { + .ops = &pwc_ctrl_ops, + .id = PWC_CID_CUSTOM(save_user), + .type = V4L2_CTRL_TYPE_BUTTON, + .name = "Save User Settings", +}; + +static const struct v4l2_ctrl_config pwc_restore_user_cfg = { + .ops = &pwc_ctrl_ops, + .id = PWC_CID_CUSTOM(restore_user), + .type = V4L2_CTRL_TYPE_BUTTON, + .name = "Restore User Settings", +}; + +static const struct v4l2_ctrl_config pwc_restore_factory_cfg = { + .ops = &pwc_ctrl_ops, + .id = PWC_CID_CUSTOM(restore_factory), + .type = V4L2_CTRL_TYPE_BUTTON, + .name = "Restore Factory Settings", +}; + +int pwc_init_controls(struct pwc_device *pdev) +{ + struct v4l2_ctrl_handler *hdl; + struct v4l2_ctrl_config cfg; + int r, def; + + hdl = &pdev->ctrl_handler; + r = v4l2_ctrl_handler_init(hdl, 20); + if (r) + return r; + + /* Brightness, contrast, saturation, gamma */ + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, BRIGHTNESS_FORMATTER, &def); + if (r || def > 127) + def = 63; + pdev->brightness = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 127, 1, def); + + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, CONTRAST_FORMATTER, &def); + if (r || def > 63) + def = 31; + pdev->contrast = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_CONTRAST, 0, 63, 1, def); + + if (pdev->type >= 675) { + if (pdev->type < 730) + pdev->saturation_fmt = SATURATION_MODE_FORMATTER2; + else + pdev->saturation_fmt = SATURATION_MODE_FORMATTER1; + r = pwc_get_s8_ctrl(pdev, GET_CHROM_CTL, pdev->saturation_fmt, + &def); + if (r || def < -100 || def > 100) + def = 0; + pdev->saturation = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_SATURATION, -100, 100, 1, def); + } + + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, GAMMA_FORMATTER, &def); + if (r || def > 31) + def = 15; + pdev->gamma = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_GAMMA, 0, 31, 1, def); + + /* auto white balance, red gain, blue gain */ + r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, WB_MODE_FORMATTER, &def); + if (r || def > awb_auto) + def = awb_auto; + cfg = pwc_auto_white_balance_cfg; + cfg.name = v4l2_ctrl_get_name(cfg.id); + cfg.def = def; + pdev->auto_white_balance = v4l2_ctrl_new_custom(hdl, &cfg, NULL); + /* check auto controls to avoid NULL deref in v4l2_ctrl_auto_cluster */ + if (!pdev->auto_white_balance) + return hdl->error; + + r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, + PRESET_MANUAL_RED_GAIN_FORMATTER, &def); + if (r) + def = 127; + pdev->red_balance = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_RED_BALANCE, 0, 255, 1, def); + + r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, + PRESET_MANUAL_BLUE_GAIN_FORMATTER, &def); + if (r) + def = 127; + pdev->blue_balance = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_BLUE_BALANCE, 0, 255, 1, def); + + v4l2_ctrl_auto_cluster(3, &pdev->auto_white_balance, awb_manual, true); + + /* autogain, gain */ + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, AGC_MODE_FORMATTER, &def); + if (r || (def != 0 && def != 0xff)) + def = 0; + /* Note a register value if 0 means auto gain is on */ + pdev->autogain = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_AUTOGAIN, 0, 1, 1, def == 0); + if (!pdev->autogain) + return hdl->error; + + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, PRESET_AGC_FORMATTER, &def); + if (r || def > 63) + def = 31; + pdev->gain = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_GAIN, 0, 63, 1, def); + + /* auto exposure, exposure */ + if (DEVICE_USE_CODEC2(pdev->type)) { + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, SHUTTER_MODE_FORMATTER, + &def); + if (r || (def != 0 && def != 0xff)) + def = 0; + /* + * def = 0 auto, def = ff manual + * menu idx 0 = auto, idx 1 = manual + */ + pdev->exposure_auto = v4l2_ctrl_new_std_menu(hdl, + &pwc_ctrl_ops, + V4L2_CID_EXPOSURE_AUTO, + 1, 0, def != 0); + if (!pdev->exposure_auto) + return hdl->error; + + /* GET_LUM_CTL, PRESET_SHUTTER_FORMATTER is unreliable */ + r = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL, + READ_SHUTTER_FORMATTER, &def); + if (r || def > 655) + def = 655; + pdev->exposure = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_EXPOSURE, 0, 655, 1, def); + /* CODEC2: separate auto gain & auto exposure */ + v4l2_ctrl_auto_cluster(2, &pdev->autogain, 0, true); + v4l2_ctrl_auto_cluster(2, &pdev->exposure_auto, + V4L2_EXPOSURE_MANUAL, true); + } else if (DEVICE_USE_CODEC3(pdev->type)) { + /* GET_LUM_CTL, PRESET_SHUTTER_FORMATTER is unreliable */ + r = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL, + READ_SHUTTER_FORMATTER, &def); + if (r || def > 255) + def = 255; + pdev->exposure = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_EXPOSURE, 0, 255, 1, def); + /* CODEC3: both gain and exposure controlled by autogain */ + pdev->autogain_expo_cluster[0] = pdev->autogain; + pdev->autogain_expo_cluster[1] = pdev->gain; + pdev->autogain_expo_cluster[2] = pdev->exposure; + v4l2_ctrl_auto_cluster(3, pdev->autogain_expo_cluster, + 0, true); + } + + /* color / bw setting */ + r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, COLOUR_MODE_FORMATTER, + &def); + if (r || (def != 0 && def != 0xff)) + def = 0xff; + /* def = 0 bw, def = ff color, menu idx 0 = color, idx 1 = bw */ + pdev->colorfx = v4l2_ctrl_new_std_menu(hdl, &pwc_ctrl_ops, + V4L2_CID_COLORFX, 1, 0, def == 0); + + /* autocontour, contour */ + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, AUTO_CONTOUR_FORMATTER, &def); + if (r || (def != 0 && def != 0xff)) + def = 0; + cfg = pwc_autocontour_cfg; + cfg.def = def == 0; + pdev->autocontour = v4l2_ctrl_new_custom(hdl, &cfg, NULL); + if (!pdev->autocontour) + return hdl->error; + + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, PRESET_CONTOUR_FORMATTER, &def); + if (r || def > 63) + def = 31; + cfg = pwc_contour_cfg; + cfg.def = def; + pdev->contour = v4l2_ctrl_new_custom(hdl, &cfg, NULL); + + v4l2_ctrl_auto_cluster(2, &pdev->autocontour, 0, false); + + /* backlight */ + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, + BACK_LIGHT_COMPENSATION_FORMATTER, &def); + if (r || (def != 0 && def != 0xff)) + def = 0; + cfg = pwc_backlight_cfg; + cfg.name = v4l2_ctrl_get_name(cfg.id); + cfg.def = def == 0; + pdev->backlight = v4l2_ctrl_new_custom(hdl, &cfg, NULL); + + /* flikker rediction */ + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, + FLICKERLESS_MODE_FORMATTER, &def); + if (r || (def != 0 && def != 0xff)) + def = 0; + cfg = pwc_flicker_cfg; + cfg.name = v4l2_ctrl_get_name(cfg.id); + cfg.def = def == 0; + pdev->flicker = v4l2_ctrl_new_custom(hdl, &cfg, NULL); + + /* Dynamic noise reduction */ + r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, + DYNAMIC_NOISE_CONTROL_FORMATTER, &def); + if (r || def > 3) + def = 2; + cfg = pwc_noise_reduction_cfg; + cfg.def = def; + pdev->noise_reduction = v4l2_ctrl_new_custom(hdl, &cfg, NULL); + + /* Save / Restore User / Factory Settings */ + pdev->save_user = v4l2_ctrl_new_custom(hdl, &pwc_save_user_cfg, NULL); + pdev->restore_user = v4l2_ctrl_new_custom(hdl, &pwc_restore_user_cfg, + NULL); + if (pdev->restore_user) + pdev->restore_user->flags |= V4L2_CTRL_FLAG_UPDATE; + pdev->restore_factory = v4l2_ctrl_new_custom(hdl, + &pwc_restore_factory_cfg, + NULL); + if (pdev->restore_factory) + pdev->restore_factory->flags |= V4L2_CTRL_FLAG_UPDATE; + + if (!(pdev->features & FEATURE_MOTOR_PANTILT)) + return hdl->error; + + /* Motor pan / tilt / reset */ + pdev->motor_pan = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_PAN_RELATIVE, -4480, 4480, 64, 0); + if (!pdev->motor_pan) + return hdl->error; + pdev->motor_tilt = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_TILT_RELATIVE, -1920, 1920, 64, 0); + pdev->motor_pan_reset = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_PAN_RESET, 0, 0, 0, 0); + pdev->motor_tilt_reset = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, + V4L2_CID_TILT_RESET, 0, 0, 0, 0); + v4l2_ctrl_cluster(4, &pdev->motor_pan); + + return hdl->error; +} static void pwc_vidioc_fill_fmt(const struct pwc_device *pdev, struct v4l2_format *f) { @@ -284,10 +431,21 @@ static int pwc_vidioc_try_fmt(struct pwc_device *pdev, struct v4l2_format *f) } /* ioctl(VIDIOC_SET_FMT) */ -static int pwc_vidioc_set_fmt(struct pwc_device *pdev, struct v4l2_format *f) + +static int pwc_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) { + struct pwc_device *pdev = video_drvdata(file); int ret, fps, snapshot, compression, pixelformat; + if (!pdev->udev) + return -ENODEV; + + if (pdev->capt_file != NULL && + pdev->capt_file != file) + return -EBUSY; + + pdev->capt_file = file; + ret = pwc_vidioc_try_fmt(pdev, f); if (ret<0) return ret; @@ -309,7 +467,7 @@ static int pwc_vidioc_set_fmt(struct pwc_device *pdev, struct v4l2_format *f) pixelformat != V4L2_PIX_FMT_PWC2) return -EINVAL; - if (pdev->iso_init) + if (vb2_is_streaming(&pdev->vb_queue)) return -EBUSY; PWC_DEBUG_IOCTL("Trying to set format to: width=%d height=%d fps=%d " @@ -343,13 +501,14 @@ static int pwc_vidioc_set_fmt(struct pwc_device *pdev, struct v4l2_format *f) static int pwc_querycap(struct file *file, void *fh, struct v4l2_capability *cap) { - struct video_device *vdev = video_devdata(file); struct pwc_device *pdev = video_drvdata(file); + if (!pdev->udev) + return -ENODEV; + strcpy(cap->driver, PWC_NAME); - strlcpy(cap->card, vdev->name, sizeof(cap->card)); + strlcpy(cap->card, pdev->vdev.name, sizeof(cap->card)); usb_make_path(pdev->udev, cap->bus_info, sizeof(cap->bus_info)); - cap->version = PWC_VERSION_CODE; cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | @@ -377,255 +536,375 @@ static int pwc_s_input(struct file *file, void *fh, unsigned int i) return i ? -EINVAL : 0; } -static int pwc_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *c) +static int pwc_g_volatile_ctrl(struct v4l2_ctrl *ctrl) { - int i, idx; - u32 id; - - id = c->id; - if (id & V4L2_CTRL_FLAG_NEXT_CTRL) { - id &= V4L2_CTRL_ID_MASK; - id++; - idx = -1; - for (i = 0; i < ARRAY_SIZE(pwc_controls); i++) { - if (pwc_controls[i].id < id) - continue; - if (idx >= 0 - && pwc_controls[i].id > pwc_controls[idx].id) - continue; - idx = i; - } - if (idx < 0) - return -EINVAL; - memcpy(c, &pwc_controls[idx], sizeof pwc_controls[0]); - return 0; + struct pwc_device *pdev = + container_of(ctrl->handler, struct pwc_device, ctrl_handler); + int ret = 0; + + /* + * Sometimes it can take quite long for the pwc to complete usb control + * transfers, so release the modlock to give streaming by another + * process / thread the chance to continue with a dqbuf. + */ + mutex_unlock(&pdev->modlock); + + /* + * Take the udev-lock to protect against the disconnect handler + * completing and setting dev->udev to NULL underneath us. Other code + * does not need to do this since it is protected by the modlock. + */ + mutex_lock(&pdev->udevlock); + + if (!pdev->udev) { + ret = -ENODEV; + goto leave; } - for (i = 0; i < sizeof(pwc_controls) / sizeof(struct v4l2_queryctrl); i++) { - if (pwc_controls[i].id == c->id) { - PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) found\n"); - memcpy(c, &pwc_controls[i], sizeof(struct v4l2_queryctrl)); - return 0; + + switch (ctrl->id) { + case V4L2_CID_AUTO_WHITE_BALANCE: + if (pdev->color_bal_valid && + (pdev->auto_white_balance->val != awb_auto || + time_before(jiffies, + pdev->last_color_bal_update + HZ / 4))) { + pdev->red_balance->val = pdev->last_red_balance; + pdev->blue_balance->val = pdev->last_blue_balance; + break; } + ret = pwc_get_u8_ctrl(pdev, GET_STATUS_CTL, + READ_RED_GAIN_FORMATTER, + &pdev->red_balance->val); + if (ret) + break; + ret = pwc_get_u8_ctrl(pdev, GET_STATUS_CTL, + READ_BLUE_GAIN_FORMATTER, + &pdev->blue_balance->val); + if (ret) + break; + pdev->last_red_balance = pdev->red_balance->val; + pdev->last_blue_balance = pdev->blue_balance->val; + pdev->last_color_bal_update = jiffies; + pdev->color_bal_valid = true; + break; + case V4L2_CID_AUTOGAIN: + if (pdev->gain_valid && time_before(jiffies, + pdev->last_gain_update + HZ / 4)) { + pdev->gain->val = pdev->last_gain; + break; + } + ret = pwc_get_u8_ctrl(pdev, GET_STATUS_CTL, + READ_AGC_FORMATTER, &pdev->gain->val); + if (ret) + break; + pdev->last_gain = pdev->gain->val; + pdev->last_gain_update = jiffies; + pdev->gain_valid = true; + if (!DEVICE_USE_CODEC3(pdev->type)) + break; + /* Fall through for CODEC3 where autogain also controls expo */ + case V4L2_CID_EXPOSURE_AUTO: + if (pdev->exposure_valid && time_before(jiffies, + pdev->last_exposure_update + HZ / 4)) { + pdev->exposure->val = pdev->last_exposure; + break; + } + ret = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL, + READ_SHUTTER_FORMATTER, + &pdev->exposure->val); + if (ret) + break; + pdev->last_exposure = pdev->exposure->val; + pdev->last_exposure_update = jiffies; + pdev->exposure_valid = true; + break; + default: + ret = -EINVAL; } - return -EINVAL; + + if (ret) + PWC_ERROR("g_ctrl %s error %d\n", ctrl->name, ret); + +leave: + mutex_unlock(&pdev->udevlock); + mutex_lock(&pdev->modlock); + return ret; } -static int pwc_g_ctrl(struct file *file, void *fh, struct v4l2_control *c) +static int pwc_set_awb(struct pwc_device *pdev) { - struct pwc_device *pdev = video_drvdata(file); int ret; - switch (c->id) { - case V4L2_CID_BRIGHTNESS: - c->value = pwc_get_brightness(pdev); - if (c->value < 0) - return -EINVAL; - return 0; - case V4L2_CID_CONTRAST: - c->value = pwc_get_contrast(pdev); - if (c->value < 0) - return -EINVAL; - return 0; - case V4L2_CID_SATURATION: - ret = pwc_get_saturation(pdev, &c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_GAMMA: - c->value = pwc_get_gamma(pdev); - if (c->value < 0) - return -EINVAL; - return 0; - case V4L2_CID_RED_BALANCE: - ret = pwc_get_red_gain(pdev, &c->value); - if (ret < 0) - return -EINVAL; - c->value >>= 8; - return 0; - case V4L2_CID_BLUE_BALANCE: - ret = pwc_get_blue_gain(pdev, &c->value); - if (ret < 0) - return -EINVAL; - c->value >>= 8; - return 0; - case V4L2_CID_AUTO_WHITE_BALANCE: - ret = pwc_get_awb(pdev); - if (ret < 0) - return -EINVAL; - c->value = (ret == PWC_WB_MANUAL) ? 0 : 1; - return 0; - case V4L2_CID_GAIN: - ret = pwc_get_agc(pdev, &c->value); - if (ret < 0) - return -EINVAL; - c->value >>= 8; - return 0; - case V4L2_CID_AUTOGAIN: - ret = pwc_get_agc(pdev, &c->value); - if (ret < 0) - return -EINVAL; - c->value = (c->value < 0) ? 1 : 0; - return 0; - case V4L2_CID_EXPOSURE: - ret = pwc_get_shutter_speed(pdev, &c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_COLOUR_MODE: - ret = pwc_get_colour_mode(pdev, &c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_AUTOCONTOUR: - ret = pwc_get_contour(pdev, &c->value); - if (ret < 0) - return -EINVAL; - c->value = (c->value == -1 ? 1 : 0); - return 0; - case V4L2_CID_PRIVATE_CONTOUR: - ret = pwc_get_contour(pdev, &c->value); - if (ret < 0) - return -EINVAL; - c->value >>= 10; + if (pdev->auto_white_balance->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, + WB_MODE_FORMATTER, + pdev->auto_white_balance->val); + if (ret) + return ret; + + if (pdev->auto_white_balance->val != awb_manual) + pdev->color_bal_valid = false; /* Force cache update */ + } + if (pdev->auto_white_balance->val != awb_manual) return 0; - case V4L2_CID_PRIVATE_BACKLIGHT: - ret = pwc_get_backlight(pdev, &c->value); - if (ret < 0) - return -EINVAL; + + if (pdev->red_balance->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, + PRESET_MANUAL_RED_GAIN_FORMATTER, + pdev->red_balance->val); + if (ret) + return ret; + } + + if (pdev->blue_balance->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, + PRESET_MANUAL_BLUE_GAIN_FORMATTER, + pdev->blue_balance->val); + if (ret) + return ret; + } + return 0; +} + +/* For CODEC2 models which have separate autogain and auto exposure */ +static int pwc_set_autogain(struct pwc_device *pdev) +{ + int ret; + + if (pdev->autogain->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + AGC_MODE_FORMATTER, + pdev->autogain->val ? 0 : 0xff); + if (ret) + return ret; + + if (pdev->autogain->val) + pdev->gain_valid = false; /* Force cache update */ + } + + if (pdev->autogain->val) return 0; - case V4L2_CID_PRIVATE_FLICKERLESS: - ret = pwc_get_flicker(pdev, &c->value); - if (ret < 0) - return -EINVAL; - c->value = (c->value ? 1 : 0); + + if (pdev->gain->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + PRESET_AGC_FORMATTER, + pdev->gain->val); + if (ret) + return ret; + } + return 0; +} + +/* For CODEC2 models which have separate autogain and auto exposure */ +static int pwc_set_exposure_auto(struct pwc_device *pdev) +{ + int ret; + int is_auto = pdev->exposure_auto->val == V4L2_EXPOSURE_AUTO; + + if (pdev->exposure_auto->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + SHUTTER_MODE_FORMATTER, + is_auto ? 0 : 0xff); + if (ret) + return ret; + + if (is_auto) + pdev->exposure_valid = false; /* Force cache update */ + } + + if (is_auto) return 0; - case V4L2_CID_PRIVATE_NOISE_REDUCTION: - ret = pwc_get_dynamic_noise(pdev, &c->value); - if (ret < 0) - return -EINVAL; + + if (pdev->exposure->is_new) { + ret = pwc_set_u16_ctrl(pdev, SET_LUM_CTL, + PRESET_SHUTTER_FORMATTER, + pdev->exposure->val); + if (ret) + return ret; + } + return 0; +} + +/* For CODEC3 models which have autogain controlling both gain and exposure */ +static int pwc_set_autogain_expo(struct pwc_device *pdev) +{ + int ret; + + if (pdev->autogain->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + AGC_MODE_FORMATTER, + pdev->autogain->val ? 0 : 0xff); + if (ret) + return ret; + + if (pdev->autogain->val) { + pdev->gain_valid = false; /* Force cache update */ + pdev->exposure_valid = false; /* Force cache update */ + } + } + + if (pdev->autogain->val) return 0; - case V4L2_CID_PRIVATE_SAVE_USER: - case V4L2_CID_PRIVATE_RESTORE_USER: - case V4L2_CID_PRIVATE_RESTORE_FACTORY: - return -EINVAL; + if (pdev->gain->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + PRESET_AGC_FORMATTER, + pdev->gain->val); + if (ret) + return ret; } - return -EINVAL; + + if (pdev->exposure->is_new) { + ret = pwc_set_u16_ctrl(pdev, SET_LUM_CTL, + PRESET_SHUTTER_FORMATTER, + pdev->exposure->val); + if (ret) + return ret; + } + return 0; } -static int pwc_s_ctrl(struct file *file, void *fh, struct v4l2_control *c) +static int pwc_set_motor(struct pwc_device *pdev) { - struct pwc_device *pdev = video_drvdata(file); int ret; + u8 buf[4]; + + buf[0] = 0; + if (pdev->motor_pan_reset->is_new) + buf[0] |= 0x01; + if (pdev->motor_tilt_reset->is_new) + buf[0] |= 0x02; + if (pdev->motor_pan_reset->is_new || pdev->motor_tilt_reset->is_new) { + ret = send_control_msg(pdev, SET_MPT_CTL, + PT_RESET_CONTROL_FORMATTER, buf, 1); + if (ret < 0) + return ret; + } - switch (c->id) { - case V4L2_CID_BRIGHTNESS: - c->value <<= 9; - ret = pwc_set_brightness(pdev, c->value); + memset(buf, 0, sizeof(buf)); + if (pdev->motor_pan->is_new) { + buf[0] = pdev->motor_pan->val & 0xFF; + buf[1] = (pdev->motor_pan->val >> 8); + } + if (pdev->motor_tilt->is_new) { + buf[2] = pdev->motor_tilt->val & 0xFF; + buf[3] = (pdev->motor_tilt->val >> 8); + } + if (pdev->motor_pan->is_new || pdev->motor_tilt->is_new) { + ret = send_control_msg(pdev, SET_MPT_CTL, + PT_RELATIVE_CONTROL_FORMATTER, + buf, sizeof(buf)); if (ret < 0) - return -EINVAL; - return 0; + return ret; + } + + return 0; +} + +static int pwc_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct pwc_device *pdev = + container_of(ctrl->handler, struct pwc_device, ctrl_handler); + int ret = 0; + + /* See the comments on locking in pwc_g_volatile_ctrl */ + mutex_unlock(&pdev->modlock); + mutex_lock(&pdev->udevlock); + + if (!pdev->udev) { + ret = -ENODEV; + goto leave; + } + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + BRIGHTNESS_FORMATTER, ctrl->val); + break; case V4L2_CID_CONTRAST: - c->value <<= 10; - ret = pwc_set_contrast(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + CONTRAST_FORMATTER, ctrl->val); + break; case V4L2_CID_SATURATION: - ret = pwc_set_saturation(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; + ret = pwc_set_s8_ctrl(pdev, SET_CHROM_CTL, + pdev->saturation_fmt, ctrl->val); + break; case V4L2_CID_GAMMA: - c->value <<= 11; - ret = pwc_set_gamma(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_RED_BALANCE: - c->value <<= 8; - ret = pwc_set_red_gain(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_BLUE_BALANCE: - c->value <<= 8; - ret = pwc_set_blue_gain(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + GAMMA_FORMATTER, ctrl->val); + break; case V4L2_CID_AUTO_WHITE_BALANCE: - c->value = (c->value == 0) ? PWC_WB_MANUAL : PWC_WB_AUTO; - ret = pwc_set_awb(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_EXPOSURE: - c->value <<= 8; - ret = pwc_set_shutter_speed(pdev, c->value ? 0 : 1, c->value); - if (ret < 0) - return -EINVAL; - return 0; + ret = pwc_set_awb(pdev); + break; case V4L2_CID_AUTOGAIN: - /* autogain off means nothing without a gain */ - if (c->value == 0) - return 0; - ret = pwc_set_agc(pdev, c->value, 0); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_GAIN: - c->value <<= 8; - ret = pwc_set_agc(pdev, 0, c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_SAVE_USER: - if (pwc_save_user(pdev)) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_RESTORE_USER: - if (pwc_restore_user(pdev)) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_RESTORE_FACTORY: - if (pwc_restore_factory(pdev)) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_COLOUR_MODE: - ret = pwc_set_colour_mode(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_AUTOCONTOUR: - c->value = (c->value == 1) ? -1 : 0; - ret = pwc_set_contour(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_CONTOUR: - c->value <<= 10; - ret = pwc_set_contour(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_BACKLIGHT: - ret = pwc_set_backlight(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_FLICKERLESS: - ret = pwc_set_flicker(pdev, c->value); - if (ret < 0) - return -EINVAL; - case V4L2_CID_PRIVATE_NOISE_REDUCTION: - ret = pwc_set_dynamic_noise(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; - + if (DEVICE_USE_CODEC2(pdev->type)) + ret = pwc_set_autogain(pdev); + else if (DEVICE_USE_CODEC3(pdev->type)) + ret = pwc_set_autogain_expo(pdev); + else + ret = -EINVAL; + break; + case V4L2_CID_EXPOSURE_AUTO: + if (DEVICE_USE_CODEC2(pdev->type)) + ret = pwc_set_exposure_auto(pdev); + else + ret = -EINVAL; + break; + case V4L2_CID_COLORFX: + ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, + COLOUR_MODE_FORMATTER, + ctrl->val ? 0 : 0xff); + break; + case PWC_CID_CUSTOM(autocontour): + if (pdev->autocontour->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + AUTO_CONTOUR_FORMATTER, + pdev->autocontour->val ? 0 : 0xff); + } + if (ret == 0 && pdev->contour->is_new) { + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + PRESET_CONTOUR_FORMATTER, + pdev->contour->val); + } + break; + case V4L2_CID_BACKLIGHT_COMPENSATION: + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + BACK_LIGHT_COMPENSATION_FORMATTER, + ctrl->val ? 0 : 0xff); + break; + case V4L2_CID_BAND_STOP_FILTER: + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + FLICKERLESS_MODE_FORMATTER, + ctrl->val ? 0 : 0xff); + break; + case PWC_CID_CUSTOM(noise_reduction): + ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, + DYNAMIC_NOISE_CONTROL_FORMATTER, + ctrl->val); + break; + case PWC_CID_CUSTOM(save_user): + ret = pwc_button_ctrl(pdev, SAVE_USER_DEFAULTS_FORMATTER); + break; + case PWC_CID_CUSTOM(restore_user): + ret = pwc_button_ctrl(pdev, RESTORE_USER_DEFAULTS_FORMATTER); + break; + case PWC_CID_CUSTOM(restore_factory): + ret = pwc_button_ctrl(pdev, + RESTORE_FACTORY_DEFAULTS_FORMATTER); + break; + case V4L2_CID_PAN_RELATIVE: + ret = pwc_set_motor(pdev); + break; + default: + ret = -EINVAL; } - return -EINVAL; + + if (ret) + PWC_ERROR("s_ctrl %s error %d\n", ctrl->name, ret); + +leave: + mutex_unlock(&pdev->udevlock); + mutex_lock(&pdev->modlock); + return ret; } static int pwc_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f) @@ -667,157 +946,77 @@ static int pwc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format * return pwc_vidioc_try_fmt(pdev, f); } -static int pwc_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) +static int pwc_reqbufs(struct file *file, void *fh, + struct v4l2_requestbuffers *rb) { struct pwc_device *pdev = video_drvdata(file); - return pwc_vidioc_set_fmt(pdev, f); -} - -static int pwc_reqbufs(struct file *file, void *fh, struct v4l2_requestbuffers *rb) -{ - int nbuffers; + if (pdev->capt_file != NULL && + pdev->capt_file != file) + return -EBUSY; - PWC_DEBUG_IOCTL("ioctl(VIDIOC_REQBUFS) count=%d\n", rb->count); - if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (rb->memory != V4L2_MEMORY_MMAP) - return -EINVAL; + pdev->capt_file = file; - nbuffers = rb->count; - if (nbuffers < 2) - nbuffers = 2; - else if (nbuffers > pwc_mbufs) - nbuffers = pwc_mbufs; - /* Force to use our # of buffers */ - rb->count = pwc_mbufs; - return 0; + return vb2_reqbufs(&pdev->vb_queue, rb); } static int pwc_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf) { struct pwc_device *pdev = video_drvdata(file); - int index; - PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) index=%d\n", buf->index); - if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad type\n"); - return -EINVAL; - } - index = buf->index; - if (index < 0 || index >= pwc_mbufs) { - PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad index %d\n", buf->index); - return -EINVAL; - } - - buf->m.offset = index * pdev->len_per_image; - if (pdev->pixfmt != V4L2_PIX_FMT_YUV420) - buf->bytesused = pdev->frame_size + sizeof(struct pwc_raw_frame); - else - buf->bytesused = pdev->view.size; - buf->field = V4L2_FIELD_NONE; - buf->memory = V4L2_MEMORY_MMAP; - /*buf->flags = V4L2_BUF_FLAG_MAPPED;*/ - buf->length = pdev->len_per_image; - - PWC_DEBUG_READ("VIDIOC_QUERYBUF: index=%d\n", buf->index); - PWC_DEBUG_READ("VIDIOC_QUERYBUF: m.offset=%d\n", buf->m.offset); - PWC_DEBUG_READ("VIDIOC_QUERYBUF: bytesused=%d\n", buf->bytesused); - - return 0; + return vb2_querybuf(&pdev->vb_queue, buf); } static int pwc_qbuf(struct file *file, void *fh, struct v4l2_buffer *buf) { - PWC_DEBUG_IOCTL("ioctl(VIDIOC_QBUF) index=%d\n", buf->index); - if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (buf->memory != V4L2_MEMORY_MMAP) - return -EINVAL; - if (buf->index >= pwc_mbufs) - return -EINVAL; + struct pwc_device *pdev = video_drvdata(file); - buf->flags |= V4L2_BUF_FLAG_QUEUED; - buf->flags &= ~V4L2_BUF_FLAG_DONE; + if (!pdev->udev) + return -ENODEV; - return 0; + if (pdev->capt_file != file) + return -EBUSY; + + return vb2_qbuf(&pdev->vb_queue, buf); } static int pwc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf) { - DECLARE_WAITQUEUE(wait, current); struct pwc_device *pdev = video_drvdata(file); - int ret; - - PWC_DEBUG_IOCTL("ioctl(VIDIOC_DQBUF)\n"); - - if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - - add_wait_queue(&pdev->frameq, &wait); - while (pdev->full_frames == NULL) { - if (pdev->error_status) { - remove_wait_queue(&pdev->frameq, &wait); - set_current_state(TASK_RUNNING); - return -pdev->error_status; - } - if (signal_pending(current)) { - remove_wait_queue(&pdev->frameq, &wait); - set_current_state(TASK_RUNNING); - return -ERESTARTSYS; - } - mutex_unlock(&pdev->modlock); - schedule(); - set_current_state(TASK_INTERRUPTIBLE); - mutex_lock(&pdev->modlock); - } - remove_wait_queue(&pdev->frameq, &wait); - set_current_state(TASK_RUNNING); + if (!pdev->udev) + return -ENODEV; - PWC_DEBUG_IOCTL("VIDIOC_DQBUF: frame ready.\n"); - /* Decompress data in pdev->images[pdev->fill_image] */ - ret = pwc_handle_frame(pdev); - if (ret) - return -EFAULT; - PWC_DEBUG_IOCTL("VIDIOC_DQBUF: after pwc_handle_frame\n"); - - buf->index = pdev->fill_image; - if (pdev->pixfmt != V4L2_PIX_FMT_YUV420) - buf->bytesused = pdev->frame_size + sizeof(struct pwc_raw_frame); - else - buf->bytesused = pdev->view.size; - buf->flags = V4L2_BUF_FLAG_MAPPED; - buf->field = V4L2_FIELD_NONE; - do_gettimeofday(&buf->timestamp); - buf->sequence = 0; - buf->memory = V4L2_MEMORY_MMAP; - buf->m.offset = pdev->fill_image * pdev->len_per_image; - buf->length = pdev->len_per_image; - pwc_next_image(pdev); - - PWC_DEBUG_IOCTL("VIDIOC_DQBUF: buf->index=%d\n", buf->index); - PWC_DEBUG_IOCTL("VIDIOC_DQBUF: buf->length=%d\n", buf->length); - PWC_DEBUG_IOCTL("VIDIOC_DQBUF: m.offset=%d\n", buf->m.offset); - PWC_DEBUG_IOCTL("VIDIOC_DQBUF: bytesused=%d\n", buf->bytesused); - PWC_DEBUG_IOCTL("VIDIOC_DQBUF: leaving\n"); - return 0; + if (pdev->capt_file != file) + return -EBUSY; + return vb2_dqbuf(&pdev->vb_queue, buf, file->f_flags & O_NONBLOCK); } static int pwc_streamon(struct file *file, void *fh, enum v4l2_buf_type i) { struct pwc_device *pdev = video_drvdata(file); - return pwc_isoc_init(pdev); + if (!pdev->udev) + return -ENODEV; + + if (pdev->capt_file != file) + return -EBUSY; + + return vb2_streamon(&pdev->vb_queue, i); } static int pwc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i) { struct pwc_device *pdev = video_drvdata(file); - pwc_isoc_cleanup(pdev); - return 0; + if (!pdev->udev) + return -ENODEV; + + if (pdev->capt_file != file) + return -EBUSY; + + return vb2_streamoff(&pdev->vb_queue, i); } static int pwc_enum_framesizes(struct file *file, void *fh, @@ -879,6 +1078,14 @@ static int pwc_enum_frameintervals(struct file *file, void *fh, return 0; } +static int pwc_log_status(struct file *file, void *priv) +{ + struct pwc_device *pdev = video_drvdata(file); + + v4l2_ctrl_handler_log_status(&pdev->ctrl_handler, PWC_NAME); + return 0; +} + static long pwc_default(struct file *file, void *fh, bool valid_prio, int cmd, void *arg) { @@ -896,15 +1103,13 @@ const struct v4l2_ioctl_ops pwc_ioctl_ops = { .vidioc_g_fmt_vid_cap = pwc_g_fmt_vid_cap, .vidioc_s_fmt_vid_cap = pwc_s_fmt_vid_cap, .vidioc_try_fmt_vid_cap = pwc_try_fmt_vid_cap, - .vidioc_queryctrl = pwc_queryctrl, - .vidioc_g_ctrl = pwc_g_ctrl, - .vidioc_s_ctrl = pwc_s_ctrl, .vidioc_reqbufs = pwc_reqbufs, .vidioc_querybuf = pwc_querybuf, .vidioc_qbuf = pwc_qbuf, .vidioc_dqbuf = pwc_dqbuf, .vidioc_streamon = pwc_streamon, .vidioc_streamoff = pwc_streamoff, + .vidioc_log_status = pwc_log_status, .vidioc_enum_framesizes = pwc_enum_framesizes, .vidioc_enum_frameintervals = pwc_enum_frameintervals, .vidioc_default = pwc_default, diff --git a/drivers/media/video/pwc/pwc.h b/drivers/media/video/pwc/pwc.h index 083f8b1..0e4e2d7 100644 --- a/drivers/media/video/pwc/pwc.h +++ b/drivers/media/video/pwc/pwc.h @@ -29,7 +29,6 @@ #include <linux/usb.h> #include <linux/spinlock.h> #include <linux/wait.h> -#include <linux/version.h> #include <linux/mutex.h> #include <linux/mm.h> #include <linux/slab.h> @@ -37,19 +36,16 @@ #include <linux/videodev2.h> #include <media/v4l2-common.h> #include <media/v4l2-ioctl.h> +#include <media/v4l2-ctrls.h> +#include <media/videobuf2-vmalloc.h> #ifdef CONFIG_USB_PWC_INPUT_EVDEV #include <linux/input.h> #endif -#include "pwc-uncompress.h" #include <media/pwc-ioctl.h> /* Version block */ -#define PWC_MAJOR 10 -#define PWC_MINOR 0 -#define PWC_EXTRAMINOR 12 -#define PWC_VERSION_CODE KERNEL_VERSION(PWC_MAJOR,PWC_MINOR,PWC_EXTRAMINOR) -#define PWC_VERSION "10.0.14" +#define PWC_VERSION "10.0.15" #define PWC_NAME "pwc" #define PFX PWC_NAME ": " @@ -81,9 +77,9 @@ #define PWC_DEBUG_LEVEL (PWC_DEBUG_LEVEL_MODULE) #define PWC_DEBUG(level, fmt, args...) do {\ - if ((PWC_DEBUG_LEVEL_ ##level) & pwc_trace) \ - printk(KERN_DEBUG PFX fmt, ##args); \ - } while(0) + if ((PWC_DEBUG_LEVEL_ ##level) & pwc_trace) \ + printk(KERN_DEBUG PFX fmt, ##args); \ + } while (0) #define PWC_ERROR(fmt, args...) printk(KERN_ERR PFX fmt, ##args) #define PWC_WARNING(fmt, args...) printk(KERN_WARNING PFX fmt, ##args) @@ -110,25 +106,21 @@ #define FEATURE_CODEC1 0x0002 #define FEATURE_CODEC2 0x0004 -/* Turn certain features on/off */ -#define PWC_INT_PIPE 0 - /* Ignore errors in the first N frames, to allow for startup delays */ #define FRAME_LOWMARK 5 /* Size and number of buffers for the ISO pipe. */ -#define MAX_ISO_BUFS 2 +#define MAX_ISO_BUFS 3 #define ISO_FRAMES_PER_DESC 10 #define ISO_MAX_FRAME_SIZE 960 #define ISO_BUFFER_SIZE (ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE) -/* Frame buffers: contains compressed or uncompressed video data. */ -#define MAX_FRAMES 5 /* Maximum size after decompression is 640x480 YUV data, 1.5 * 640 * 480 */ #define PWC_FRAME_SIZE (460800 + TOUCAM_HEADER_SIZE + TOUCAM_TRAILER_SIZE) -/* Absolute maximum number of buffers available for mmap() */ -#define MAX_IMAGES 10 +/* Absolute minimum and maximum number of buffers available for mmap() */ +#define MIN_FRAMES 2 +#define MAX_FRAMES 16 /* Some macros to quickly find the type of a webcam */ #define DEVICE_USE_CODEC1(x) ((x)<675) @@ -136,149 +128,221 @@ #define DEVICE_USE_CODEC3(x) ((x)>=700) #define DEVICE_USE_CODEC23(x) ((x)>=675) -/* The following structures were based on cpia.h. Why reinvent the wheel? :-) */ -struct pwc_iso_buf -{ - void *data; - int length; - int read; - struct urb *urb; -}; +/* from pwc-dec.h */ +#define PWCX_FLAG_PLANAR 0x0001 + +/* Request types: video */ +#define SET_LUM_CTL 0x01 +#define GET_LUM_CTL 0x02 +#define SET_CHROM_CTL 0x03 +#define GET_CHROM_CTL 0x04 +#define SET_STATUS_CTL 0x05 +#define GET_STATUS_CTL 0x06 +#define SET_EP_STREAM_CTL 0x07 +#define GET_EP_STREAM_CTL 0x08 +#define GET_XX_CTL 0x09 +#define SET_XX_CTL 0x0A +#define GET_XY_CTL 0x0B +#define SET_XY_CTL 0x0C +#define SET_MPT_CTL 0x0D +#define GET_MPT_CTL 0x0E + +/* Selectors for the Luminance controls [GS]ET_LUM_CTL */ +#define AGC_MODE_FORMATTER 0x2000 +#define PRESET_AGC_FORMATTER 0x2100 +#define SHUTTER_MODE_FORMATTER 0x2200 +#define PRESET_SHUTTER_FORMATTER 0x2300 +#define PRESET_CONTOUR_FORMATTER 0x2400 +#define AUTO_CONTOUR_FORMATTER 0x2500 +#define BACK_LIGHT_COMPENSATION_FORMATTER 0x2600 +#define CONTRAST_FORMATTER 0x2700 +#define DYNAMIC_NOISE_CONTROL_FORMATTER 0x2800 +#define FLICKERLESS_MODE_FORMATTER 0x2900 +#define AE_CONTROL_SPEED 0x2A00 +#define BRIGHTNESS_FORMATTER 0x2B00 +#define GAMMA_FORMATTER 0x2C00 + +/* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */ +#define WB_MODE_FORMATTER 0x1000 +#define AWB_CONTROL_SPEED_FORMATTER 0x1100 +#define AWB_CONTROL_DELAY_FORMATTER 0x1200 +#define PRESET_MANUAL_RED_GAIN_FORMATTER 0x1300 +#define PRESET_MANUAL_BLUE_GAIN_FORMATTER 0x1400 +#define COLOUR_MODE_FORMATTER 0x1500 +#define SATURATION_MODE_FORMATTER1 0x1600 +#define SATURATION_MODE_FORMATTER2 0x1700 + +/* Selectors for the Status controls [GS]ET_STATUS_CTL */ +#define SAVE_USER_DEFAULTS_FORMATTER 0x0200 +#define RESTORE_USER_DEFAULTS_FORMATTER 0x0300 +#define RESTORE_FACTORY_DEFAULTS_FORMATTER 0x0400 +#define READ_AGC_FORMATTER 0x0500 +#define READ_SHUTTER_FORMATTER 0x0600 +#define READ_RED_GAIN_FORMATTER 0x0700 +#define READ_BLUE_GAIN_FORMATTER 0x0800 + +/* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */ +#define PT_RELATIVE_CONTROL_FORMATTER 0x01 +#define PT_RESET_CONTROL_FORMATTER 0x02 +#define PT_STATUS_FORMATTER 0x03 /* intermediate buffers with raw data from the USB cam */ struct pwc_frame_buf { - void *data; - volatile int filled; /* number of bytes filled */ - struct pwc_frame_buf *next; /* list */ -}; - -/* additionnal informations used when dealing image between kernel and userland */ -struct pwc_imgbuf -{ - unsigned long offset; /* offset of this buffer in the big array of image_data */ - int vma_use_count; /* count the number of time this memory is mapped */ + struct vb2_buffer vb; /* common v4l buffer stuff -- must be first */ + struct list_head list; + void *data; + int filled; /* number of bytes filled */ }; struct pwc_device { struct video_device vdev; - - /* Pointer to our usb_device, may be NULL after unplug */ - struct usb_device *udev; - - int type; /* type of cam (645, 646, 675, 680, 690, 720, 730, 740, 750) */ - int release; /* release number */ - int features; /* feature bits */ - char serial[30]; /* serial number (string) */ - int error_status; /* set when something goes wrong with the cam (unplugged, USB errors) */ - int usb_init; /* set when the cam has been initialized over USB */ - - /*** Video data ***/ - int vopen; /* flag */ - int vendpoint; /* video isoc endpoint */ - int vcinterface; /* video control interface */ - int valternate; /* alternate interface needed */ - int vframes, vsize; /* frames-per-second & size (see PSZ_*) */ - int pixfmt; /* pixelformat: V4L2_PIX_FMT_YUV420 or raw: _PWC1, _PWC2 */ - int vframe_count; /* received frames */ - int vframes_dumped; /* counter for dumped frames */ - int vframes_error; /* frames received in error */ - int vmax_packet_size; /* USB maxpacket size */ - int vlast_packet_size; /* for frame synchronisation */ - int visoc_errors; /* number of contiguous ISOC errors */ - int vcompression; /* desired compression factor */ - int vbandlength; /* compressed band length; 0 is uncompressed */ - char vsnapshot; /* snapshot mode */ - char vsync; /* used by isoc handler */ - char vmirror; /* for ToUCaM series */ - char unplugged; - - int cmd_len; - unsigned char cmd_buf[13]; - - /* The image acquisition requires 3 to 4 steps: - 1. data is gathered in short packets from the USB controller - 2. data is synchronized and packed into a frame buffer - 3a. in case data is compressed, decompress it directly into image buffer - 3b. in case data is uncompressed, copy into image buffer with viewport - 4. data is transferred to the user process - - Note that MAX_ISO_BUFS != MAX_FRAMES != MAX_IMAGES.... - We have in effect a back-to-back-double-buffer system. - */ - /* 1: isoc */ - struct pwc_iso_buf sbuf[MAX_ISO_BUFS]; - char iso_init; - - /* 2: frame */ - struct pwc_frame_buf *fbuf; /* all frames */ - struct pwc_frame_buf *empty_frames, *empty_frames_tail; /* all empty frames */ - struct pwc_frame_buf *full_frames, *full_frames_tail; /* all filled frames */ - struct pwc_frame_buf *fill_frame; /* frame currently being filled */ - struct pwc_frame_buf *read_frame; /* frame currently read by user process */ - int frame_header_size, frame_trailer_size; - int frame_size; - int frame_total_size; /* including header & trailer */ - int drop_frames; - - /* 3: decompression */ - void *decompress_data; /* private data for decompression engine */ - - /* 4: image */ - /* We have an 'image' and a 'view', where 'image' is the fixed-size image - as delivered by the camera, and 'view' is the size requested by the - program. The camera image is centered in this viewport, laced with - a gray or black border. view_min <= image <= view <= view_max; - */ - int image_mask; /* bitmask of supported sizes */ - struct pwc_coord view_min, view_max; /* minimum and maximum viewable sizes */ - struct pwc_coord abs_max; /* maximum supported size with compression */ - struct pwc_coord image, view; /* image and viewport size */ - struct pwc_coord offset; /* offset within the viewport */ - - void *image_data; /* total buffer, which is subdivided into ... */ - struct pwc_imgbuf images[MAX_IMAGES];/* ...several images... */ - int fill_image; /* ...which are rotated. */ - int len_per_image; /* length per image */ - int image_read_pos; /* In case we read data in pieces, keep track of were we are in the imagebuffer */ - int image_used[MAX_IMAGES]; /* For MCAPTURE and SYNC */ - - struct mutex modlock; /* to prevent races in video_open(), etc */ - spinlock_t ptrlock; /* for manipulating the buffer pointers */ - - /*** motorized pan/tilt feature */ - struct pwc_mpt_range angle_range; - int pan_angle; /* in degrees * 100 */ - int tilt_angle; /* absolute angle; 0,0 is home position */ - int snapshot_button_status; /* set to 1 when the user push the button, reset to 0 when this value is read */ + struct mutex modlock; + + /* Pointer to our usb_device, may be NULL after unplug */ + struct usb_device *udev; + /* Protects the setting of udev to NULL by our disconnect handler */ + struct mutex udevlock; + + /* type of cam (645, 646, 675, 680, 690, 720, 730, 740, 750) */ + int type; + int release; /* release number */ + int features; /* feature bits */ + char serial[30]; /* serial number (string) */ + + /*** Video data ***/ + struct file *capt_file; /* file doing video capture */ + int vendpoint; /* video isoc endpoint */ + int vcinterface; /* video control interface */ + int valternate; /* alternate interface needed */ + int vframes, vsize; /* frames-per-second & size (see PSZ_*) */ + int pixfmt; /* pixelformat: V4L2_PIX_FMT_YUV420 or _PWCX */ + int vframe_count; /* received frames */ + int vmax_packet_size; /* USB maxpacket size */ + int vlast_packet_size; /* for frame synchronisation */ + int visoc_errors; /* number of contiguous ISOC errors */ + int vcompression; /* desired compression factor */ + int vbandlength; /* compressed band length; 0 is uncompressed */ + char vsnapshot; /* snapshot mode */ + char vsync; /* used by isoc handler */ + char vmirror; /* for ToUCaM series */ + char power_save; /* Do powersaving for this cam */ + + int cmd_len; + unsigned char cmd_buf[13]; + + struct urb *urbs[MAX_ISO_BUFS]; + char iso_init; + + /* videobuf2 queue and queued buffers list */ + struct vb2_queue vb_queue; + struct list_head queued_bufs; + spinlock_t queued_bufs_lock; + + /* + * Frame currently being filled, this only gets touched by the + * isoc urb complete handler, and by stream start / stop since + * start / stop touch it before / after starting / killing the urbs + * no locking is needed around this + */ + struct pwc_frame_buf *fill_buf; + + int frame_header_size, frame_trailer_size; + int frame_size; + int frame_total_size; /* including header & trailer */ + int drop_frames; + + void *decompress_data; /* private data for decompression engine */ + + /* + * We have an 'image' and a 'view', where 'image' is the fixed-size img + * as delivered by the camera, and 'view' is the size requested by the + * program. The camera image is centered in this viewport, laced with + * a gray or black border. view_min <= image <= view <= view_max; + */ + int image_mask; /* supported sizes */ + struct pwc_coord view_min, view_max; /* minimum and maximum view */ + struct pwc_coord abs_max; /* maximum supported size */ + struct pwc_coord image, view; /* image and viewport size */ + struct pwc_coord offset; /* offset of the viewport */ + + /*** motorized pan/tilt feature */ + struct pwc_mpt_range angle_range; + int pan_angle; /* in degrees * 100 */ + int tilt_angle; /* absolute angle; 0,0 is home */ + + /* + * Set to 1 when the user push the button, reset to 0 + * when this value is read from sysfs. + */ + int snapshot_button_status; #ifdef CONFIG_USB_PWC_INPUT_EVDEV - struct input_dev *button_dev; /* webcam snapshot button input */ - char button_phys[64]; + struct input_dev *button_dev; /* webcam snapshot button input */ + char button_phys[64]; #endif - /*** Misc. data ***/ - wait_queue_head_t frameq; /* When waiting for a frame to finish... */ -#if PWC_INT_PIPE - void *usb_int_handler; /* for the interrupt endpoint */ -#endif + /* controls */ + struct v4l2_ctrl_handler ctrl_handler; + u16 saturation_fmt; + struct v4l2_ctrl *brightness; + struct v4l2_ctrl *contrast; + struct v4l2_ctrl *saturation; + struct v4l2_ctrl *gamma; + struct { + /* awb / red-blue balance cluster */ + struct v4l2_ctrl *auto_white_balance; + struct v4l2_ctrl *red_balance; + struct v4l2_ctrl *blue_balance; + /* usb ctrl transfers are slow, so we cache things */ + int color_bal_valid; + unsigned long last_color_bal_update; /* In jiffies */ + s32 last_red_balance; + s32 last_blue_balance; + }; + struct { + /* autogain / gain cluster */ + struct v4l2_ctrl *autogain; + struct v4l2_ctrl *gain; + int gain_valid; + unsigned long last_gain_update; /* In jiffies */ + s32 last_gain; + }; + struct { + /* exposure_auto / exposure cluster */ + struct v4l2_ctrl *exposure_auto; + struct v4l2_ctrl *exposure; + int exposure_valid; + unsigned long last_exposure_update; /* In jiffies */ + s32 last_exposure; + }; + struct v4l2_ctrl *colorfx; + struct { + /* autocontour/contour cluster */ + struct v4l2_ctrl *autocontour; + struct v4l2_ctrl *contour; + }; + struct v4l2_ctrl *backlight; + struct v4l2_ctrl *flicker; + struct v4l2_ctrl *noise_reduction; + struct v4l2_ctrl *save_user; + struct v4l2_ctrl *restore_user; + struct v4l2_ctrl *restore_factory; + struct { + /* motor control cluster */ + struct v4l2_ctrl *motor_pan; + struct v4l2_ctrl *motor_tilt; + struct v4l2_ctrl *motor_pan_reset; + struct v4l2_ctrl *motor_tilt_reset; + }; + /* CODEC3 models have both gain and exposure controlled by autogain */ + struct v4l2_ctrl *autogain_expo_cluster[3]; }; -#ifdef __cplusplus -extern "C" { -#endif - /* Global variables */ #ifdef CONFIG_USB_PWC_DEBUG extern int pwc_trace; #endif -extern int pwc_mbufs; - -/** functions in pwc-if.c */ -int pwc_handle_frame(struct pwc_device *pdev); -void pwc_next_image(struct pwc_device *pdev); -int pwc_isoc_init(struct pwc_device *pdev); -void pwc_isoc_cleanup(struct pwc_device *pdev); /** Functions in pwc-misc.c */ /* sizes in pixels */ @@ -291,50 +355,25 @@ void pwc_construct(struct pwc_device *pdev); /* Request a certain video mode. Returns < 0 if not possible */ extern int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, int frames, int compression, int snapshot); extern unsigned int pwc_get_fps(struct pwc_device *pdev, unsigned int index, unsigned int size); -/* Calculate the number of bytes per image (not frame) */ extern int pwc_mpt_reset(struct pwc_device *pdev, int flags); extern int pwc_mpt_set_angle(struct pwc_device *pdev, int pan, int tilt); - -/* Various controls; should be obvious. Value 0..65535, or < 0 on error */ -extern int pwc_get_brightness(struct pwc_device *pdev); -extern int pwc_set_brightness(struct pwc_device *pdev, int value); -extern int pwc_get_contrast(struct pwc_device *pdev); -extern int pwc_set_contrast(struct pwc_device *pdev, int value); -extern int pwc_get_gamma(struct pwc_device *pdev); -extern int pwc_set_gamma(struct pwc_device *pdev, int value); -extern int pwc_get_saturation(struct pwc_device *pdev, int *value); -extern int pwc_set_saturation(struct pwc_device *pdev, int value); extern int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value); extern int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor); -extern int pwc_restore_user(struct pwc_device *pdev); -extern int pwc_save_user(struct pwc_device *pdev); -extern int pwc_restore_factory(struct pwc_device *pdev); - -/* exported for use by v4l2 controls */ -extern int pwc_get_red_gain(struct pwc_device *pdev, int *value); -extern int pwc_set_red_gain(struct pwc_device *pdev, int value); -extern int pwc_get_blue_gain(struct pwc_device *pdev, int *value); -extern int pwc_set_blue_gain(struct pwc_device *pdev, int value); -extern int pwc_get_awb(struct pwc_device *pdev); -extern int pwc_set_awb(struct pwc_device *pdev, int mode); -extern int pwc_set_agc(struct pwc_device *pdev, int mode, int value); -extern int pwc_get_agc(struct pwc_device *pdev, int *value); -extern int pwc_set_shutter_speed(struct pwc_device *pdev, int mode, int value); -extern int pwc_get_shutter_speed(struct pwc_device *pdev, int *value); - -extern int pwc_set_colour_mode(struct pwc_device *pdev, int colour); -extern int pwc_get_colour_mode(struct pwc_device *pdev, int *colour); -extern int pwc_set_contour(struct pwc_device *pdev, int contour); -extern int pwc_get_contour(struct pwc_device *pdev, int *contour); -extern int pwc_set_backlight(struct pwc_device *pdev, int backlight); -extern int pwc_get_backlight(struct pwc_device *pdev, int *backlight); -extern int pwc_set_flicker(struct pwc_device *pdev, int flicker); -extern int pwc_get_flicker(struct pwc_device *pdev, int *flicker); -extern int pwc_set_dynamic_noise(struct pwc_device *pdev, int noise); -extern int pwc_get_dynamic_noise(struct pwc_device *pdev, int *noise); +extern int send_control_msg(struct pwc_device *pdev, + u8 request, u16 value, void *buf, int buflen); + +/* Control get / set helpers */ +int pwc_get_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data); +int pwc_set_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, u8 data); +int pwc_get_s8_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data); +#define pwc_set_s8_ctrl pwc_set_u8_ctrl +int pwc_get_u16_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *dat); +int pwc_set_u16_ctrl(struct pwc_device *pdev, u8 request, u16 value, u16 data); +int pwc_button_ctrl(struct pwc_device *pdev, u16 value); +int pwc_init_controls(struct pwc_device *pdev); /* Power down or up the camera; not supported by all models */ -extern int pwc_camera_power(struct pwc_device *pdev, int power); +extern void pwc_camera_power(struct pwc_device *pdev, int power); /* Private ioctl()s; see pwc-ioctl.h */ extern long pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg); @@ -343,12 +382,6 @@ extern const struct v4l2_ioctl_ops pwc_ioctl_ops; /** pwc-uncompress.c */ /* Expand frame to image, possibly including decompression. Uses read_frame and fill_image */ -extern int pwc_decompress(struct pwc_device *pdev); - -#ifdef __cplusplus -} -#endif - +int pwc_decompress(struct pwc_device *pdev, struct pwc_frame_buf *fbuf); #endif -/* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */ |