diff options
Diffstat (limited to 'drivers/gpu/drm/exynos_tmp/exynos_mixer.c')
| -rw-r--r-- | drivers/gpu/drm/exynos_tmp/exynos_mixer.c | 1109 |
1 files changed, 0 insertions, 1109 deletions
diff --git a/drivers/gpu/drm/exynos_tmp/exynos_mixer.c b/drivers/gpu/drm/exynos_tmp/exynos_mixer.c deleted file mode 100644 index 68ef010..0000000 --- a/drivers/gpu/drm/exynos_tmp/exynos_mixer.c +++ /dev/null @@ -1,1109 +0,0 @@ -/* - * Copyright (C) 2011 Samsung Electronics Co.Ltd - * Authors: - * Seung-Woo Kim <sw0312.kim@samsung.com> - * Inki Dae <inki.dae@samsung.com> - * Joonyoung Shim <jy0922.shim@samsung.com> - * - * Based on drivers/media/video/s5p-tv/mixer_reg.c - * - * 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. - * - */ - -#include "drmP.h" - -#include "regs-mixer.h" -#include "regs-vp.h" - -#include <linux/kernel.h> -#include <linux/spinlock.h> -#include <linux/wait.h> -#include <linux/i2c.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/delay.h> -#include <linux/pm_runtime.h> -#include <linux/clk.h> -#include <linux/regulator/consumer.h> - -#include <drm/exynos_drm.h> - -#include "exynos_drm_drv.h" -#include "exynos_drm_hdmi.h" - -#define get_mixer_context(dev) platform_get_drvdata(to_platform_device(dev)) - -struct hdmi_win_data { - dma_addr_t dma_addr; - void __iomem *vaddr; - dma_addr_t chroma_dma_addr; - void __iomem *chroma_vaddr; - uint32_t pixel_format; - unsigned int bpp; - unsigned int crtc_x; - unsigned int crtc_y; - unsigned int crtc_width; - unsigned int crtc_height; - unsigned int fb_x; - unsigned int fb_y; - unsigned int fb_width; - unsigned int fb_height; - unsigned int src_width; - unsigned int src_height; - unsigned int mode_width; - unsigned int mode_height; - unsigned int scan_flags; -}; - -struct mixer_resources { - int irq; - void __iomem *mixer_regs; - void __iomem *vp_regs; - spinlock_t reg_slock; - struct clk *mixer; - struct clk *vp; - struct clk *sclk_mixer; - struct clk *sclk_hdmi; - struct clk *sclk_dac; -}; - -struct mixer_context { - struct device *dev; - int pipe; - bool interlace; - bool powered; - u32 int_en; - - struct mutex mixer_mutex; - struct mixer_resources mixer_res; - struct hdmi_win_data win_data[MIXER_WIN_NR]; -}; - -static const u8 filter_y_horiz_tap8[] = { - 0, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, 0, 0, 0, - 0, 2, 4, 5, 6, 6, 6, 6, - 6, 5, 5, 4, 3, 2, 1, 1, - 0, -6, -12, -16, -18, -20, -21, -20, - -20, -18, -16, -13, -10, -8, -5, -2, - 127, 126, 125, 121, 114, 107, 99, 89, - 79, 68, 57, 46, 35, 25, 16, 8, -}; - -static const u8 filter_y_vert_tap4[] = { - 0, -3, -6, -8, -8, -8, -8, -7, - -6, -5, -4, -3, -2, -1, -1, 0, - 127, 126, 124, 118, 111, 102, 92, 81, - 70, 59, 48, 37, 27, 19, 11, 5, - 0, 5, 11, 19, 27, 37, 48, 59, - 70, 81, 92, 102, 111, 118, 124, 126, - 0, 0, -1, -1, -2, -3, -4, -5, - -6, -7, -8, -8, -8, -8, -6, -3, -}; - -static const u8 filter_cr_horiz_tap4[] = { - 0, -3, -6, -8, -8, -8, -8, -7, - -6, -5, -4, -3, -2, -1, -1, 0, - 127, 126, 124, 118, 111, 102, 92, 81, - 70, 59, 48, 37, 27, 19, 11, 5, -}; - -static inline u32 vp_reg_read(struct mixer_resources *res, u32 reg_id) -{ - return readl(res->vp_regs + reg_id); -} - -static inline void vp_reg_write(struct mixer_resources *res, u32 reg_id, - u32 val) -{ - writel(val, res->vp_regs + reg_id); -} - -static inline void vp_reg_writemask(struct mixer_resources *res, u32 reg_id, - u32 val, u32 mask) -{ - u32 old = vp_reg_read(res, reg_id); - - val = (val & mask) | (old & ~mask); - writel(val, res->vp_regs + reg_id); -} - -static inline u32 mixer_reg_read(struct mixer_resources *res, u32 reg_id) -{ - return readl(res->mixer_regs + reg_id); -} - -static inline void mixer_reg_write(struct mixer_resources *res, u32 reg_id, - u32 val) -{ - writel(val, res->mixer_regs + reg_id); -} - -static inline void mixer_reg_writemask(struct mixer_resources *res, - u32 reg_id, u32 val, u32 mask) -{ - u32 old = mixer_reg_read(res, reg_id); - - val = (val & mask) | (old & ~mask); - writel(val, res->mixer_regs + reg_id); -} - -static void mixer_regs_dump(struct mixer_context *ctx) -{ -#define DUMPREG(reg_id) \ -do { \ - DRM_DEBUG_KMS(#reg_id " = %08x\n", \ - (u32)readl(ctx->mixer_res.mixer_regs + reg_id)); \ -} while (0) - - DUMPREG(MXR_STATUS); - DUMPREG(MXR_CFG); - DUMPREG(MXR_INT_EN); - DUMPREG(MXR_INT_STATUS); - - DUMPREG(MXR_LAYER_CFG); - DUMPREG(MXR_VIDEO_CFG); - - DUMPREG(MXR_GRAPHIC0_CFG); - DUMPREG(MXR_GRAPHIC0_BASE); - DUMPREG(MXR_GRAPHIC0_SPAN); - DUMPREG(MXR_GRAPHIC0_WH); - DUMPREG(MXR_GRAPHIC0_SXY); - DUMPREG(MXR_GRAPHIC0_DXY); - - DUMPREG(MXR_GRAPHIC1_CFG); - DUMPREG(MXR_GRAPHIC1_BASE); - DUMPREG(MXR_GRAPHIC1_SPAN); - DUMPREG(MXR_GRAPHIC1_WH); - DUMPREG(MXR_GRAPHIC1_SXY); - DUMPREG(MXR_GRAPHIC1_DXY); -#undef DUMPREG -} - -static void vp_regs_dump(struct mixer_context *ctx) -{ -#define DUMPREG(reg_id) \ -do { \ - DRM_DEBUG_KMS(#reg_id " = %08x\n", \ - (u32) readl(ctx->mixer_res.vp_regs + reg_id)); \ -} while (0) - - DUMPREG(VP_ENABLE); - DUMPREG(VP_SRESET); - DUMPREG(VP_SHADOW_UPDATE); - DUMPREG(VP_FIELD_ID); - DUMPREG(VP_MODE); - DUMPREG(VP_IMG_SIZE_Y); - DUMPREG(VP_IMG_SIZE_C); - DUMPREG(VP_PER_RATE_CTRL); - DUMPREG(VP_TOP_Y_PTR); - DUMPREG(VP_BOT_Y_PTR); - DUMPREG(VP_TOP_C_PTR); - DUMPREG(VP_BOT_C_PTR); - DUMPREG(VP_ENDIAN_MODE); - DUMPREG(VP_SRC_H_POSITION); - DUMPREG(VP_SRC_V_POSITION); - DUMPREG(VP_SRC_WIDTH); - DUMPREG(VP_SRC_HEIGHT); - DUMPREG(VP_DST_H_POSITION); - DUMPREG(VP_DST_V_POSITION); - DUMPREG(VP_DST_WIDTH); - DUMPREG(VP_DST_HEIGHT); - DUMPREG(VP_H_RATIO); - DUMPREG(VP_V_RATIO); - -#undef DUMPREG -} - -static inline void vp_filter_set(struct mixer_resources *res, - int reg_id, const u8 *data, unsigned int size) -{ - /* assure 4-byte align */ - BUG_ON(size & 3); - for (; size; size -= 4, reg_id += 4, data += 4) { - u32 val = (data[0] << 24) | (data[1] << 16) | - (data[2] << 8) | data[3]; - vp_reg_write(res, reg_id, val); - } -} - -static void vp_default_filter(struct mixer_resources *res) -{ - vp_filter_set(res, VP_POLY8_Y0_LL, - filter_y_horiz_tap8, sizeof filter_y_horiz_tap8); - vp_filter_set(res, VP_POLY4_Y0_LL, - filter_y_vert_tap4, sizeof filter_y_vert_tap4); - vp_filter_set(res, VP_POLY4_C0_LL, - filter_cr_horiz_tap4, sizeof filter_cr_horiz_tap4); -} - -static void mixer_vsync_set_update(struct mixer_context *ctx, bool enable) -{ - struct mixer_resources *res = &ctx->mixer_res; - - /* block update on vsync */ - mixer_reg_writemask(res, MXR_STATUS, enable ? - MXR_STATUS_SYNC_ENABLE : 0, MXR_STATUS_SYNC_ENABLE); - - vp_reg_write(res, VP_SHADOW_UPDATE, enable ? - VP_SHADOW_UPDATE_ENABLE : 0); -} - -static void mixer_cfg_scan(struct mixer_context *ctx, unsigned int height) -{ - struct mixer_resources *res = &ctx->mixer_res; - u32 val; - - /* choosing between interlace and progressive mode */ - val = (ctx->interlace ? MXR_CFG_SCAN_INTERLACE : - MXR_CFG_SCAN_PROGRASSIVE); - - /* choosing between porper HD and SD mode */ - if (height == 480) - val |= MXR_CFG_SCAN_NTSC | MXR_CFG_SCAN_SD; - else if (height == 576) - val |= MXR_CFG_SCAN_PAL | MXR_CFG_SCAN_SD; - else if (height == 720) - val |= MXR_CFG_SCAN_HD_720 | MXR_CFG_SCAN_HD; - else if (height == 1080) - val |= MXR_CFG_SCAN_HD_1080 | MXR_CFG_SCAN_HD; - else - val |= MXR_CFG_SCAN_HD_720 | MXR_CFG_SCAN_HD; - - mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_SCAN_MASK); -} - -static void mixer_cfg_rgb_fmt(struct mixer_context *ctx, unsigned int height) -{ - struct mixer_resources *res = &ctx->mixer_res; - u32 val; - - if (height == 480) { - val = MXR_CFG_RGB601_0_255; - } else if (height == 576) { - val = MXR_CFG_RGB601_0_255; - } else if (height == 720) { - val = MXR_CFG_RGB709_16_235; - mixer_reg_write(res, MXR_CM_COEFF_Y, - (1 << 30) | (94 << 20) | (314 << 10) | - (32 << 0)); - mixer_reg_write(res, MXR_CM_COEFF_CB, - (972 << 20) | (851 << 10) | (225 << 0)); - mixer_reg_write(res, MXR_CM_COEFF_CR, - (225 << 20) | (820 << 10) | (1004 << 0)); - } else if (height == 1080) { - val = MXR_CFG_RGB709_16_235; - mixer_reg_write(res, MXR_CM_COEFF_Y, - (1 << 30) | (94 << 20) | (314 << 10) | - (32 << 0)); - mixer_reg_write(res, MXR_CM_COEFF_CB, - (972 << 20) | (851 << 10) | (225 << 0)); - mixer_reg_write(res, MXR_CM_COEFF_CR, - (225 << 20) | (820 << 10) | (1004 << 0)); - } else { - val = MXR_CFG_RGB709_16_235; - mixer_reg_write(res, MXR_CM_COEFF_Y, - (1 << 30) | (94 << 20) | (314 << 10) | - (32 << 0)); - mixer_reg_write(res, MXR_CM_COEFF_CB, - (972 << 20) | (851 << 10) | (225 << 0)); - mixer_reg_write(res, MXR_CM_COEFF_CR, - (225 << 20) | (820 << 10) | (1004 << 0)); - } - - mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_RGB_FMT_MASK); -} - -static void mixer_cfg_layer(struct mixer_context *ctx, int win, bool enable) -{ - struct mixer_resources *res = &ctx->mixer_res; - u32 val = enable ? ~0 : 0; - - switch (win) { - case 0: - mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_GRP0_ENABLE); - break; - case 1: - mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_GRP1_ENABLE); - break; - case 2: - vp_reg_writemask(res, VP_ENABLE, val, VP_ENABLE_ON); - mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_VP_ENABLE); - break; - } -} - -static void mixer_run(struct mixer_context *ctx) -{ - struct mixer_resources *res = &ctx->mixer_res; - - mixer_reg_writemask(res, MXR_STATUS, ~0, MXR_STATUS_REG_RUN); - - mixer_regs_dump(ctx); -} - -static void vp_video_buffer(struct mixer_context *ctx, int win) -{ - struct mixer_resources *res = &ctx->mixer_res; - unsigned long flags; - struct hdmi_win_data *win_data; - unsigned int x_ratio, y_ratio; - unsigned int buf_num; - dma_addr_t luma_addr[2], chroma_addr[2]; - bool tiled_mode = false; - bool crcb_mode = false; - u32 val; - - win_data = &ctx->win_data[win]; - - switch (win_data->pixel_format) { - case DRM_FORMAT_NV12MT: - tiled_mode = true; - case DRM_FORMAT_NV12M: - crcb_mode = false; - buf_num = 2; - break; - /* TODO: single buffer format NV12, NV21 */ - default: - /* ignore pixel format at disable time */ - if (!win_data->dma_addr) - break; - - DRM_ERROR("pixel format for vp is wrong [%d].\n", - win_data->pixel_format); - return; - } - - /* scaling feature: (src << 16) / dst */ - x_ratio = (win_data->src_width << 16) / win_data->crtc_width; - y_ratio = (win_data->src_height << 16) / win_data->crtc_height; - - if (buf_num == 2) { - luma_addr[0] = win_data->dma_addr; - chroma_addr[0] = win_data->chroma_dma_addr; - } else { - luma_addr[0] = win_data->dma_addr; - chroma_addr[0] = win_data->dma_addr - + (win_data->fb_width * win_data->fb_height); - } - - if (win_data->scan_flags & DRM_MODE_FLAG_INTERLACE) { - ctx->interlace = true; - if (tiled_mode) { - luma_addr[1] = luma_addr[0] + 0x40; - chroma_addr[1] = chroma_addr[0] + 0x40; - } else { - luma_addr[1] = luma_addr[0] + win_data->fb_width; - chroma_addr[1] = chroma_addr[0] + win_data->fb_width; - } - } else { - ctx->interlace = false; - luma_addr[1] = 0; - chroma_addr[1] = 0; - } - - spin_lock_irqsave(&res->reg_slock, flags); - mixer_vsync_set_update(ctx, false); - - /* interlace or progressive scan mode */ - val = (ctx->interlace ? ~0 : 0); - vp_reg_writemask(res, VP_MODE, val, VP_MODE_LINE_SKIP); - - /* setup format */ - val = (crcb_mode ? VP_MODE_NV21 : VP_MODE_NV12); - val |= (tiled_mode ? VP_MODE_MEM_TILED : VP_MODE_MEM_LINEAR); - vp_reg_writemask(res, VP_MODE, val, VP_MODE_FMT_MASK); - - /* setting size of input image */ - vp_reg_write(res, VP_IMG_SIZE_Y, VP_IMG_HSIZE(win_data->fb_width) | - VP_IMG_VSIZE(win_data->fb_height)); - /* chroma height has to reduced by 2 to avoid chroma distorions */ - vp_reg_write(res, VP_IMG_SIZE_C, VP_IMG_HSIZE(win_data->fb_width) | - VP_IMG_VSIZE(win_data->fb_height / 2)); - - vp_reg_write(res, VP_SRC_WIDTH, win_data->src_width); - vp_reg_write(res, VP_SRC_HEIGHT, win_data->src_height); - vp_reg_write(res, VP_SRC_H_POSITION, - VP_SRC_H_POSITION_VAL(win_data->fb_x)); - vp_reg_write(res, VP_SRC_V_POSITION, win_data->fb_y); - - vp_reg_write(res, VP_DST_WIDTH, win_data->crtc_width); - vp_reg_write(res, VP_DST_H_POSITION, win_data->crtc_x); - if (ctx->interlace) { - vp_reg_write(res, VP_DST_HEIGHT, win_data->crtc_height / 2); - vp_reg_write(res, VP_DST_V_POSITION, win_data->crtc_y / 2); - } else { - vp_reg_write(res, VP_DST_HEIGHT, win_data->crtc_height); - vp_reg_write(res, VP_DST_V_POSITION, win_data->crtc_y); - } - - vp_reg_write(res, VP_H_RATIO, x_ratio); - vp_reg_write(res, VP_V_RATIO, y_ratio); - - vp_reg_write(res, VP_ENDIAN_MODE, VP_ENDIAN_MODE_LITTLE); - - /* set buffer address to vp */ - vp_reg_write(res, VP_TOP_Y_PTR, luma_addr[0]); - vp_reg_write(res, VP_BOT_Y_PTR, luma_addr[1]); - vp_reg_write(res, VP_TOP_C_PTR, chroma_addr[0]); - vp_reg_write(res, VP_BOT_C_PTR, chroma_addr[1]); - - mixer_cfg_scan(ctx, win_data->mode_height); - mixer_cfg_rgb_fmt(ctx, win_data->mode_height); - mixer_cfg_layer(ctx, win, true); - mixer_run(ctx); - - mixer_vsync_set_update(ctx, true); - spin_unlock_irqrestore(&res->reg_slock, flags); - - vp_regs_dump(ctx); -} - -static void mixer_graph_buffer(struct mixer_context *ctx, int win) -{ - struct mixer_resources *res = &ctx->mixer_res; - unsigned long flags; - struct hdmi_win_data *win_data; - unsigned int x_ratio, y_ratio; - unsigned int src_x_offset, src_y_offset, dst_x_offset, dst_y_offset; - dma_addr_t dma_addr; - unsigned int fmt; - u32 val; - - win_data = &ctx->win_data[win]; - - #define RGB565 4 - #define ARGB1555 5 - #define ARGB4444 6 - #define ARGB8888 7 - - switch (win_data->bpp) { - case 16: - fmt = ARGB4444; - break; - case 32: - fmt = ARGB8888; - break; - default: - fmt = ARGB8888; - } - - /* 2x scaling feature */ - x_ratio = 0; - y_ratio = 0; - - dst_x_offset = win_data->crtc_x; - dst_y_offset = win_data->crtc_y; - - /* converting dma address base and source offset */ - dma_addr = win_data->dma_addr - + (win_data->fb_x * win_data->bpp >> 3) - + (win_data->fb_y * win_data->fb_width * win_data->bpp >> 3); - src_x_offset = 0; - src_y_offset = 0; - - if (win_data->scan_flags & DRM_MODE_FLAG_INTERLACE) - ctx->interlace = true; - else - ctx->interlace = false; - - spin_lock_irqsave(&res->reg_slock, flags); - mixer_vsync_set_update(ctx, false); - - /* setup format */ - mixer_reg_writemask(res, MXR_GRAPHIC_CFG(win), - MXR_GRP_CFG_FORMAT_VAL(fmt), MXR_GRP_CFG_FORMAT_MASK); - - /* setup geometry */ - mixer_reg_write(res, MXR_GRAPHIC_SPAN(win), win_data->fb_width); - - val = MXR_GRP_WH_WIDTH(win_data->crtc_width); - val |= MXR_GRP_WH_HEIGHT(win_data->crtc_height); - val |= MXR_GRP_WH_H_SCALE(x_ratio); - val |= MXR_GRP_WH_V_SCALE(y_ratio); - mixer_reg_write(res, MXR_GRAPHIC_WH(win), val); - - /* setup offsets in source image */ - val = MXR_GRP_SXY_SX(src_x_offset); - val |= MXR_GRP_SXY_SY(src_y_offset); - mixer_reg_write(res, MXR_GRAPHIC_SXY(win), val); - - /* setup offsets in display image */ - val = MXR_GRP_DXY_DX(dst_x_offset); - val |= MXR_GRP_DXY_DY(dst_y_offset); - mixer_reg_write(res, MXR_GRAPHIC_DXY(win), val); - - /* set buffer address to mixer */ - mixer_reg_write(res, MXR_GRAPHIC_BASE(win), dma_addr); - - mixer_cfg_scan(ctx, win_data->mode_height); - mixer_cfg_rgb_fmt(ctx, win_data->mode_height); - mixer_cfg_layer(ctx, win, true); - mixer_run(ctx); - - mixer_vsync_set_update(ctx, true); - spin_unlock_irqrestore(&res->reg_slock, flags); -} - -static void vp_win_reset(struct mixer_context *ctx) -{ - struct mixer_resources *res = &ctx->mixer_res; - int tries = 100; - - vp_reg_write(res, VP_SRESET, VP_SRESET_PROCESSING); - for (tries = 100; tries; --tries) { - /* waiting until VP_SRESET_PROCESSING is 0 */ - if (~vp_reg_read(res, VP_SRESET) & VP_SRESET_PROCESSING) - break; - mdelay(10); - } - WARN(tries == 0, "failed to reset Video Processor\n"); -} - -static void mixer_win_reset(struct mixer_context *ctx) -{ - struct mixer_resources *res = &ctx->mixer_res; - unsigned long flags; - u32 val; /* value stored to register */ - - spin_lock_irqsave(&res->reg_slock, flags); - mixer_vsync_set_update(ctx, false); - - mixer_reg_writemask(res, MXR_CFG, MXR_CFG_DST_HDMI, MXR_CFG_DST_MASK); - - /* set output in RGB888 mode */ - mixer_reg_writemask(res, MXR_CFG, MXR_CFG_OUT_RGB888, MXR_CFG_OUT_MASK); - - /* 16 beat burst in DMA */ - mixer_reg_writemask(res, MXR_STATUS, MXR_STATUS_16_BURST, - MXR_STATUS_BURST_MASK); - - /* setting default layer priority: layer1 > layer0 > video - * because typical usage scenario would be - * layer1 - OSD - * layer0 - framebuffer - * video - video overlay - */ - val = MXR_LAYER_CFG_GRP1_VAL(3); - val |= MXR_LAYER_CFG_GRP0_VAL(2); - val |= MXR_LAYER_CFG_VP_VAL(1); - mixer_reg_write(res, MXR_LAYER_CFG, val); - - /* setting background color */ - mixer_reg_write(res, MXR_BG_COLOR0, 0x008080); - mixer_reg_write(res, MXR_BG_COLOR1, 0x008080); - mixer_reg_write(res, MXR_BG_COLOR2, 0x008080); - - /* setting graphical layers */ - - val = MXR_GRP_CFG_COLOR_KEY_DISABLE; /* no blank key */ - val |= MXR_GRP_CFG_WIN_BLEND_EN; - val |= MXR_GRP_CFG_ALPHA_VAL(0xff); /* non-transparent alpha */ - - /* the same configuration for both layers */ - mixer_reg_write(res, MXR_GRAPHIC_CFG(0), val); - - val |= MXR_GRP_CFG_BLEND_PRE_MUL; - val |= MXR_GRP_CFG_PIXEL_BLEND_EN; - mixer_reg_write(res, MXR_GRAPHIC_CFG(1), val); - - /* configuration of Video Processor Registers */ - vp_win_reset(ctx); - vp_default_filter(res); - - /* disable all layers */ - mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP0_ENABLE); - mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP1_ENABLE); - mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_VP_ENABLE); - - mixer_vsync_set_update(ctx, true); - spin_unlock_irqrestore(&res->reg_slock, flags); -} - -static void mixer_poweron(struct mixer_context *ctx) -{ - struct mixer_resources *res = &ctx->mixer_res; - - DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); - - mutex_lock(&ctx->mixer_mutex); - if (ctx->powered) { - mutex_unlock(&ctx->mixer_mutex); - return; - } - ctx->powered = true; - mutex_unlock(&ctx->mixer_mutex); - - pm_runtime_get_sync(ctx->dev); - - clk_enable(res->mixer); - clk_enable(res->vp); - clk_enable(res->sclk_mixer); - - mixer_reg_write(res, MXR_INT_EN, ctx->int_en); - mixer_win_reset(ctx); -} - -static void mixer_poweroff(struct mixer_context *ctx) -{ - struct mixer_resources *res = &ctx->mixer_res; - - DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); - - mutex_lock(&ctx->mixer_mutex); - if (!ctx->powered) - goto out; - mutex_unlock(&ctx->mixer_mutex); - - ctx->int_en = mixer_reg_read(res, MXR_INT_EN); - - clk_disable(res->mixer); - clk_disable(res->vp); - clk_disable(res->sclk_mixer); - - pm_runtime_put_sync(ctx->dev); - - mutex_lock(&ctx->mixer_mutex); - ctx->powered = false; - -out: - mutex_unlock(&ctx->mixer_mutex); -} - -static int mixer_enable_vblank(void *ctx, int pipe) -{ - struct mixer_context *mixer_ctx = ctx; - struct mixer_resources *res = &mixer_ctx->mixer_res; - - DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); - - mixer_ctx->pipe = pipe; - - /* enable vsync interrupt */ - mixer_reg_writemask(res, MXR_INT_EN, MXR_INT_EN_VSYNC, - MXR_INT_EN_VSYNC); - - return 0; -} - -static void mixer_disable_vblank(void *ctx) -{ - struct mixer_context *mixer_ctx = ctx; - struct mixer_resources *res = &mixer_ctx->mixer_res; - - DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); - - /* disable vsync interrupt */ - mixer_reg_writemask(res, MXR_INT_EN, 0, MXR_INT_EN_VSYNC); -} - -static void mixer_dpms(void *ctx, int mode) -{ - struct mixer_context *mixer_ctx = ctx; - - DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); - - switch (mode) { - case DRM_MODE_DPMS_ON: - mixer_poweron(mixer_ctx); - break; - case DRM_MODE_DPMS_STANDBY: - case DRM_MODE_DPMS_SUSPEND: - case DRM_MODE_DPMS_OFF: - mixer_poweroff(mixer_ctx); - break; - default: - DRM_DEBUG_KMS("unknown dpms mode: %d\n", mode); - break; - } -} - -static void mixer_win_mode_set(void *ctx, - struct exynos_drm_overlay *overlay) -{ - struct mixer_context *mixer_ctx = ctx; - struct hdmi_win_data *win_data; - int win; - - DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); - - if (!overlay) { - DRM_ERROR("overlay is NULL\n"); - return; - } - - DRM_DEBUG_KMS("set [%d]x[%d] at (%d,%d) to [%d]x[%d] at (%d,%d)\n", - overlay->fb_width, overlay->fb_height, - overlay->fb_x, overlay->fb_y, - overlay->crtc_width, overlay->crtc_height, - overlay->crtc_x, overlay->crtc_y); - - win = overlay->zpos; - if (win == DEFAULT_ZPOS) - win = MIXER_DEFAULT_WIN; - - if (win < 0 || win > MIXER_WIN_NR) { - DRM_ERROR("mixer window[%d] is wrong\n", win); - return; - } - - win_data = &mixer_ctx->win_data[win]; - - win_data->dma_addr = overlay->dma_addr[0]; - win_data->vaddr = overlay->vaddr[0]; - win_data->chroma_dma_addr = overlay->dma_addr[1]; - win_data->chroma_vaddr = overlay->vaddr[1]; - win_data->pixel_format = overlay->pixel_format; - win_data->bpp = overlay->bpp; - - win_data->crtc_x = overlay->crtc_x; - win_data->crtc_y = overlay->crtc_y; - win_data->crtc_width = overlay->crtc_width; - win_data->crtc_height = overlay->crtc_height; - - win_data->fb_x = overlay->fb_x; - win_data->fb_y = overlay->fb_y; - win_data->fb_width = overlay->fb_width; - win_data->fb_height = overlay->fb_height; - win_data->src_width = overlay->src_width; - win_data->src_height = overlay->src_height; - - win_data->mode_width = overlay->mode_width; - win_data->mode_height = overlay->mode_height; - - win_data->scan_flags = overlay->scan_flag; -} - -static void mixer_win_commit(void *ctx, int win) -{ - struct mixer_context *mixer_ctx = ctx; - - DRM_DEBUG_KMS("[%d] %s, win: %d\n", __LINE__, __func__, win); - - if (win > 1) - vp_video_buffer(mixer_ctx, win); - else - mixer_graph_buffer(mixer_ctx, win); -} - -static void mixer_win_disable(void *ctx, int win) -{ - struct mixer_context *mixer_ctx = ctx; - struct mixer_resources *res = &mixer_ctx->mixer_res; - unsigned long flags; - - DRM_DEBUG_KMS("[%d] %s, win: %d\n", __LINE__, __func__, win); - - spin_lock_irqsave(&res->reg_slock, flags); - mixer_vsync_set_update(mixer_ctx, false); - - mixer_cfg_layer(mixer_ctx, win, false); - - mixer_vsync_set_update(mixer_ctx, true); - spin_unlock_irqrestore(&res->reg_slock, flags); -} - -static struct exynos_mixer_ops mixer_ops = { - /* manager */ - .enable_vblank = mixer_enable_vblank, - .disable_vblank = mixer_disable_vblank, - .dpms = mixer_dpms, - - /* overlay */ - .win_mode_set = mixer_win_mode_set, - .win_commit = mixer_win_commit, - .win_disable = mixer_win_disable, -}; - -/* for pageflip event */ -static void mixer_finish_pageflip(struct drm_device *drm_dev, int crtc) -{ - struct exynos_drm_private *dev_priv = drm_dev->dev_private; - struct drm_pending_vblank_event *e, *t; - struct timeval now; - unsigned long flags; - bool is_checked = false; - - spin_lock_irqsave(&drm_dev->event_lock, flags); - - list_for_each_entry_safe(e, t, &dev_priv->pageflip_event_list, - base.link) { - /* if event's pipe isn't same as crtc then ignore it. */ - if (crtc != e->pipe) - continue; - - is_checked = true; - do_gettimeofday(&now); - e->event.sequence = 0; - e->event.tv_sec = now.tv_sec; - e->event.tv_usec = now.tv_usec; - - list_move_tail(&e->base.link, &e->base.file_priv->event_list); - wake_up_interruptible(&e->base.file_priv->event_wait); - } - - if (is_checked) - /* - * call drm_vblank_put only in case that drm_vblank_get was - * called. - */ - if (atomic_read(&drm_dev->vblank_refcount[crtc]) > 0) - drm_vblank_put(drm_dev, crtc); - - spin_unlock_irqrestore(&drm_dev->event_lock, flags); -} - -static irqreturn_t mixer_irq_handler(int irq, void *arg) -{ - struct exynos_drm_hdmi_context *drm_hdmi_ctx = arg; - struct mixer_context *ctx = drm_hdmi_ctx->ctx; - struct mixer_resources *res = &ctx->mixer_res; - u32 val, base, shadow; - - spin_lock(&res->reg_slock); - - /* read interrupt status for handling and clearing flags for VSYNC */ - val = mixer_reg_read(res, MXR_INT_STATUS); - - /* handling VSYNC */ - if (val & MXR_INT_STATUS_VSYNC) { - /* interlace scan need to check shadow register */ - if (ctx->interlace) { - base = mixer_reg_read(res, MXR_GRAPHIC_BASE(0)); - shadow = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(0)); - if (base != shadow) - goto out; - - base = mixer_reg_read(res, MXR_GRAPHIC_BASE(1)); - shadow = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(1)); - if (base != shadow) - goto out; - } - - drm_handle_vblank(drm_hdmi_ctx->drm_dev, ctx->pipe); - mixer_finish_pageflip(drm_hdmi_ctx->drm_dev, ctx->pipe); - } - -out: - /* clear interrupts */ - if (~val & MXR_INT_EN_VSYNC) { - /* vsync interrupt use different bit for read and clear */ - val &= ~MXR_INT_EN_VSYNC; - val |= MXR_INT_CLEAR_VSYNC; - } - mixer_reg_write(res, MXR_INT_STATUS, val); - - spin_unlock(&res->reg_slock); - - return IRQ_HANDLED; -} - -static int __devinit mixer_resources_init(struct exynos_drm_hdmi_context *ctx, - struct platform_device *pdev) -{ - struct mixer_context *mixer_ctx = ctx->ctx; - struct device *dev = &pdev->dev; - struct mixer_resources *mixer_res = &mixer_ctx->mixer_res; - struct resource *res; - int ret; - - spin_lock_init(&mixer_res->reg_slock); - - mixer_res->mixer = clk_get(dev, "mixer"); - if (IS_ERR_OR_NULL(mixer_res->mixer)) { - dev_err(dev, "failed to get clock 'mixer'\n"); - ret = -ENODEV; - goto fail; - } - mixer_res->vp = clk_get(dev, "vp"); - if (IS_ERR_OR_NULL(mixer_res->vp)) { - dev_err(dev, "failed to get clock 'vp'\n"); - ret = -ENODEV; - goto fail; - } - mixer_res->sclk_mixer = clk_get(dev, "sclk_mixer"); - if (IS_ERR_OR_NULL(mixer_res->sclk_mixer)) { - dev_err(dev, "failed to get clock 'sclk_mixer'\n"); - ret = -ENODEV; - goto fail; - } - mixer_res->sclk_hdmi = clk_get(dev, "sclk_hdmi"); - if (IS_ERR_OR_NULL(mixer_res->sclk_hdmi)) { - dev_err(dev, "failed to get clock 'sclk_hdmi'\n"); - ret = -ENODEV; - goto fail; - } - mixer_res->sclk_dac = clk_get(dev, "sclk_dac"); - if (IS_ERR_OR_NULL(mixer_res->sclk_dac)) { - dev_err(dev, "failed to get clock 'sclk_dac'\n"); - ret = -ENODEV; - goto fail; - } - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mxr"); - if (res == NULL) { - dev_err(dev, "get memory resource failed.\n"); - ret = -ENXIO; - goto fail; - } - - clk_set_parent(mixer_res->sclk_mixer, mixer_res->sclk_hdmi); - - mixer_res->mixer_regs = ioremap(res->start, resource_size(res)); - if (mixer_res->mixer_regs == NULL) { - dev_err(dev, "register mapping failed.\n"); - ret = -ENXIO; - goto fail; - } - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vp"); - if (res == NULL) { - dev_err(dev, "get memory resource failed.\n"); - ret = -ENXIO; - goto fail_mixer_regs; - } - - mixer_res->vp_regs = ioremap(res->start, resource_size(res)); - if (mixer_res->vp_regs == NULL) { - dev_err(dev, "register mapping failed.\n"); - ret = -ENXIO; - goto fail_mixer_regs; - } - - res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "irq"); - if (res == NULL) { - dev_err(dev, "get interrupt resource failed.\n"); - ret = -ENXIO; - goto fail_vp_regs; - } - - ret = request_irq(res->start, mixer_irq_handler, 0, "drm_mixer", ctx); - if (ret) { - dev_err(dev, "request interrupt failed.\n"); - goto fail_vp_regs; - } - mixer_res->irq = res->start; - - return 0; - -fail_vp_regs: - iounmap(mixer_res->vp_regs); - -fail_mixer_regs: - iounmap(mixer_res->mixer_regs); - -fail: - if (!IS_ERR_OR_NULL(mixer_res->sclk_dac)) - clk_put(mixer_res->sclk_dac); - if (!IS_ERR_OR_NULL(mixer_res->sclk_hdmi)) - clk_put(mixer_res->sclk_hdmi); - if (!IS_ERR_OR_NULL(mixer_res->sclk_mixer)) - clk_put(mixer_res->sclk_mixer); - if (!IS_ERR_OR_NULL(mixer_res->vp)) - clk_put(mixer_res->vp); - if (!IS_ERR_OR_NULL(mixer_res->mixer)) - clk_put(mixer_res->mixer); - return ret; -} - -static void mixer_resources_cleanup(struct mixer_context *ctx) -{ - struct mixer_resources *res = &ctx->mixer_res; - - free_irq(res->irq, ctx); - - iounmap(res->vp_regs); - iounmap(res->mixer_regs); -} - -static int __devinit mixer_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct exynos_drm_hdmi_context *drm_hdmi_ctx; - struct mixer_context *ctx; - int ret; - - dev_info(dev, "probe start\n"); - - drm_hdmi_ctx = kzalloc(sizeof(*drm_hdmi_ctx), GFP_KERNEL); - if (!drm_hdmi_ctx) { - DRM_ERROR("failed to allocate common hdmi context.\n"); - return -ENOMEM; - } - - ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); - if (!ctx) { - DRM_ERROR("failed to alloc mixer context.\n"); - kfree(drm_hdmi_ctx); - return -ENOMEM; - } - - mutex_init(&ctx->mixer_mutex); - - ctx->dev = &pdev->dev; - drm_hdmi_ctx->ctx = (void *)ctx; - - platform_set_drvdata(pdev, drm_hdmi_ctx); - - /* acquire resources: regs, irqs, clocks */ - ret = mixer_resources_init(drm_hdmi_ctx, pdev); - if (ret) - goto fail; - - /* register specific callback point to common hdmi. */ - exynos_mixer_ops_register(&mixer_ops); - - pm_runtime_enable(dev); - - return 0; - - -fail: - dev_info(dev, "probe failed\n"); - return ret; -} - -static int mixer_remove(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct exynos_drm_hdmi_context *drm_hdmi_ctx = - platform_get_drvdata(pdev); - struct mixer_context *ctx = drm_hdmi_ctx->ctx; - - dev_info(dev, "remove successful\n"); - - pm_runtime_disable(&pdev->dev); - - mixer_resources_cleanup(ctx); - - return 0; -} - -#ifdef CONFIG_PM_SLEEP -static int mixer_suspend(struct device *dev) -{ - struct exynos_drm_hdmi_context *drm_hdmi_ctx = get_mixer_context(dev); - struct mixer_context *ctx = drm_hdmi_ctx->ctx; - - mixer_poweroff(ctx); - - return 0; -} -#endif - -static SIMPLE_DEV_PM_OPS(mixer_pm_ops, mixer_suspend, NULL); - -struct platform_driver mixer_driver = { - .driver = { - .name = "s5p-mixer", - .owner = THIS_MODULE, - .pm = &mixer_pm_ops, - }, - .probe = mixer_probe, - .remove = __devexit_p(mixer_remove), -}; |