From 3fedd2ac7662a10ab2973d3b6f11cdce87b7171a Mon Sep 17 00:00:00 2001 From: Damian Date: Wed, 18 May 2011 11:10:08 +0000 Subject: sh_mobile_meram: Add support for NV24 framebuffers Since the NV24 framebuffer has a CbCr plane that is twice as wide as the Y plane, it needs to be handled as a special case. Signed-off-by: Damian Hobson-Garcia Signed-off-by: Paul Mundt --- drivers/video/sh_mobile_lcdcfb.c | 10 +++++++--- drivers/video/sh_mobile_meram.c | 24 +++++++++++++++++++----- 2 files changed, 26 insertions(+), 8 deletions(-) (limited to 'drivers/video') diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c index 3a2cbd18f91b..1c652da348ea 100644 --- a/drivers/video/sh_mobile_lcdcfb.c +++ b/drivers/video/sh_mobile_lcdcfb.c @@ -627,10 +627,14 @@ static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv) ch->meram_enabled = 0; - if (ch->info->var.nonstd) - pf = SH_MOBILE_MERAM_PF_NV; - else + if (ch->info->var.nonstd) { + if (ch->info->var.bits_per_pixel == 24) + pf = SH_MOBILE_MERAM_PF_NV24; + else + pf = SH_MOBILE_MERAM_PF_NV; + } else { pf = SH_MOBILE_MERAM_PF_RGB; + } ret = mdev->ops->meram_register(mdev, cfg, pitch, ch->info->var.yres, diff --git a/drivers/video/sh_mobile_meram.c b/drivers/video/sh_mobile_meram.c index bd68f3d43ab5..9170c82b495c 100644 --- a/drivers/video/sh_mobile_meram.c +++ b/drivers/video/sh_mobile_meram.c @@ -164,6 +164,16 @@ static inline void meram_unmark(struct sh_mobile_meram_priv *priv, } } +/* + * is this a YCbCr(NV12, NV16 or NV24) colorspace + */ +static inline int is_nvcolor(int cspace) +{ + if (cspace == SH_MOBILE_MERAM_PF_NV || + cspace == SH_MOBILE_MERAM_PF_NV24) + return 1; + return 0; +} /* * set the next address to fetch @@ -184,7 +194,7 @@ static inline void meram_set_next_addr(struct sh_mobile_meram_priv *priv, meram_write_icb(priv->base, cfg->icb[0].marker_icb, target, base_addr_y + cfg->icb[0].cache_unit); - if (cfg->pixelformat == SH_MOBILE_MERAM_PF_NV) { + if (is_nvcolor(cfg->pixelformat)) { meram_write_icb(priv->base, cfg->icb[1].cache_icb, target, base_addr_c); meram_write_icb(priv->base, cfg->icb[1].marker_icb, target, @@ -208,7 +218,7 @@ static inline void meram_get_next_icb_addr(struct sh_mobile_meram_info *pdata, icb_offset = 0xc0000000 | (cfg->current_reg << 23); *icb_addr_y = icb_offset | (cfg->icb[0].marker_icb << 24); - if ((*icb_addr_c) && cfg->pixelformat == SH_MOBILE_MERAM_PF_NV) + if ((*icb_addr_c) && is_nvcolor(cfg->pixelformat)) *icb_addr_c = icb_offset | (cfg->icb[1].marker_icb << 24); } @@ -316,6 +326,7 @@ static int sh_mobile_meram_register(struct sh_mobile_meram_info *pdata, return -EINVAL; if (pixelformat != SH_MOBILE_MERAM_PF_NV && + pixelformat != SH_MOBILE_MERAM_PF_NV24 && pixelformat != SH_MOBILE_MERAM_PF_RGB) return -EINVAL; @@ -366,7 +377,7 @@ static int sh_mobile_meram_register(struct sh_mobile_meram_info *pdata, n = 2; } - if (pixelformat == SH_MOBILE_MERAM_PF_NV && n != 2) { + if (is_nvcolor(pixelformat) && n != 2) { dev_err(&pdev->dev, "requires two ICB sets for planar Y/C."); error = -EINVAL; goto err; @@ -375,7 +386,7 @@ static int sh_mobile_meram_register(struct sh_mobile_meram_info *pdata, /* we now register the ICB */ cfg->pixelformat = pixelformat; meram_mark(priv, &cfg->icb[0]); - if (pixelformat == SH_MOBILE_MERAM_PF_NV) + if (is_nvcolor(pixelformat)) meram_mark(priv, &cfg->icb[1]); /* initialize MERAM */ @@ -384,6 +395,9 @@ static int sh_mobile_meram_register(struct sh_mobile_meram_info *pdata, if (pixelformat == SH_MOBILE_MERAM_PF_NV) meram_init(priv, &cfg->icb[1], xres, (yres + 1) / 2, &out_pitch); + else if (pixelformat == SH_MOBILE_MERAM_PF_NV24) + meram_init(priv, &cfg->icb[1], 2 * xres, (yres + 1) / 2, + &out_pitch); cfg->current_reg = 1; meram_set_next_addr(priv, cfg, base_addr_y, base_addr_c); @@ -410,7 +424,7 @@ static int sh_mobile_meram_unregister(struct sh_mobile_meram_info *pdata, mutex_lock(&priv->lock); /* deinit & unmark */ - if (cfg->pixelformat == SH_MOBILE_MERAM_PF_NV) { + if (is_nvcolor(cfg->pixelformat)) { meram_deinit(priv, &cfg->icb[1]); meram_unmark(priv, &cfg->icb[1]); } -- cgit v1.2.3-59-g8ed1b