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author | Mauro Carvalho Chehab <mchehab@brturbo.com.br> | 2005-11-08 21:37:32 -0800 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-09 07:56:18 -0800 |
commit | d5e5265315770bda46c50ecaa64e2b9790f2064c (patch) | |
tree | 5c92fa1125dee3f766bd06f18840ce78bf0cd861 /drivers/media/video/em28xx/em28xx-input.c | |
parent | da45a2a5b96afd7188c058a55eb2917d6524c0cf (diff) | |
download | kernel_samsung_smdk4412-d5e5265315770bda46c50ecaa64e2b9790f2064c.zip kernel_samsung_smdk4412-d5e5265315770bda46c50ecaa64e2b9790f2064c.tar.gz kernel_samsung_smdk4412-d5e5265315770bda46c50ecaa64e2b9790f2064c.tar.bz2 |
[PATCH] v4l: 784: several improvement on i2c ir handling for em2820
- Several Improvement on I2C IR handling for em2820:
- moved Pinnacle IR table (ir_codes_em2820) to em2820-input.c
- IR struct renamed and moved to a header file.
- New file to handle em2820-specific IR.
- Some cleanups.
- attach now detects I2C IR and calls em2820-specific IR code
- IR compat code moved to compat.h
- New header with struct IR_i2c there, to allow it to be
used by board-specific input handlers.
- Some improvements at em28xx board detection:
- Board detection message improved to show interface and class.
- Now it doesn't touch audio interfaces.
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/media/video/em28xx/em28xx-input.c')
-rw-r--r-- | drivers/media/video/em28xx/em28xx-input.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/drivers/media/video/em28xx/em28xx-input.c b/drivers/media/video/em28xx/em28xx-input.c new file mode 100644 index 0000000..d6b3e15 --- /dev/null +++ b/drivers/media/video/em28xx/em28xx-input.c @@ -0,0 +1,150 @@ +/* + * + * handle saa7134 IR remotes via linux kernel input layer. + * + * 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 + * + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/sched.h> +#include <linux/interrupt.h> +#include <linux/input.h> +#include <linux/usb.h> + +#include "em2820.h" + +static unsigned int disable_ir = 0; +module_param(disable_ir, int, 0444); +MODULE_PARM_DESC(disable_ir,"disable infrared remote support"); + +static unsigned int ir_debug = 0; +module_param(ir_debug, int, 0644); +MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]"); + +#define dprintk(fmt, arg...) if (ir_debug) \ + printk(KERN_DEBUG "%s/ir: " fmt, ir->c.name , ## arg) + +/* ---------------------------------------------------------------------- */ + +static IR_KEYTAB_TYPE ir_codes_em_pinnacle[IR_KEYTAB_SIZE] = { + [ 0 ] = KEY_CHANNEL, + [ 1 ] = KEY_SELECT, + [ 2 ] = KEY_MUTE, + [ 3 ] = KEY_POWER, + [ 4 ] = KEY_KP1, + [ 5 ] = KEY_KP2, + [ 6 ] = KEY_KP3, + [ 7 ] = KEY_CHANNELUP, + [ 8 ] = KEY_KP4, + [ 9 ] = KEY_KP5, + [ 10 ] = KEY_KP6, + + [ 11 ] = KEY_CHANNELDOWN, + [ 12 ] = KEY_KP7, + [ 13 ] = KEY_KP8, + [ 14 ] = KEY_KP9, + [ 15 ] = KEY_VOLUMEUP, + [ 16 ] = KEY_KP0, + [ 17 ] = KEY_MENU, + [ 18 ] = KEY_PRINT, + + [ 19 ] = KEY_VOLUMEDOWN, + [ 21 ] = KEY_PAUSE, + [ 23 ] = KEY_RECORD, + [ 24 ] = KEY_REWIND, + [ 25 ] = KEY_PLAY, + [ 27 ] = KEY_BACKSPACE, + [ 29 ] = KEY_STOP, + [ 31 ] = KEY_ZOOM, +}; + +/* ----------------------------------------------------------------------- */ + +static int get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) +{ + unsigned char buf[2]; + unsigned char code; + + /* poll IR chip */ + if (2 != i2c_master_recv(&ir->c,buf,2)) + return -EIO; + + /* Does eliminate repeated parity code */ + if (buf[1]==0xff) + return 0; + + /* avoid fast reapeating */ + if (buf[1]==ir->old) + return 0; + ir->old=buf[1]; + + /* Rearranges bits to the right order */ + code= ((buf[0]&0x01)<<5) | /* 0010 0000 */ + ((buf[0]&0x02)<<3) | /* 0001 0000 */ + ((buf[0]&0x04)<<1) | /* 0000 1000 */ + ((buf[0]&0x08)>>1) | /* 0000 0100 */ + ((buf[0]&0x10)>>3) | /* 0000 0010 */ + ((buf[0]&0x20)>>5); /* 0000 0001 */ + + dprintk("ir hauppauge (em2840): code=0x%02x (rcv=0x%02x)\n",code,buf[0]); + + /* return key */ + *ir_key = code; + *ir_raw = code; + return 1; +} + +/* ----------------------------------------------------------------------- */ +void em2820_set_ir(struct em2820 * dev,struct IR_i2c *ir) +{ + if (disable_ir) + return ; + + /* detect & configure */ + switch (dev->model) { + case (EM2800_BOARD_UNKNOWN): + break; + case (EM2820_BOARD_UNKNOWN): + break; + case (EM2820_BOARD_TERRATEC_CINERGY_250): + break; + case (EM2820_BOARD_PINNACLE_USB_2): + ir->ir_codes = ir_codes_em_pinnacle; + break; + case (EM2820_BOARD_HAUPPAUGE_WINTV_USB_2): + ir->ir_codes = ir_codes_hauppauge_new; + ir->get_key = get_key_em_haup; + snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (EM2840 Hauppage)"); + break; + case (EM2820_BOARD_MSI_VOX_USB_2): + break; + case (EM2800_BOARD_TERRATEC_CINERGY_200): + break; + case (EM2800_BOARD_LEADTEK_WINFAST_USBII): + break; + case (EM2800_BOARD_KWORLD_USB2800): + break; + } +} + +/* ---------------------------------------------------------------------- + * Local variables: + * c-basic-offset: 8 + * End: + */ |