From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VtJHC-0001Rx-CK for barebox@lists.infradead.org; Wed, 18 Dec 2013 15:43:17 +0000 From: Sascha Hauer Date: Wed, 18 Dec 2013 16:42:35 +0100 Message-Id: <1387381362-7780-4-git-send-email-s.hauer@pengutronix.de> In-Reply-To: <1387381362-7780-1-git-send-email-s.hauer@pengutronix.de> References: <1387381362-7780-1-git-send-email-s.hauer@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 03/10] video: ipufb: calculate channel param fields from fb_bitfields To: barebox@lists.infradead.org No need to hardcode the channel parameters for the rgb offsets, we can calculate them from the fb_bitfields. ipu_ch_param_write_field() is the same as is the mainline IPUv3 driver. Signed-off-by: Sascha Hauer --- drivers/video/imx-ipu-fb.c | 92 +++++++++++++++++++++++++++++----------------- 1 file changed, 59 insertions(+), 33 deletions(-) diff --git a/drivers/video/imx-ipu-fb.c b/drivers/video/imx-ipu-fb.c index 8300e69..717fc71 100644 --- a/drivers/video/imx-ipu-fb.c +++ b/drivers/video/imx-ipu-fb.c @@ -258,6 +258,7 @@ struct imx_ipu_fb_rgb { struct fb_bitfield green; struct fb_bitfield blue; struct fb_bitfield transp; + int bits_per_pixel; }; static struct imx_ipu_fb_rgb def_rgb_16 = { @@ -265,6 +266,7 @@ static struct imx_ipu_fb_rgb def_rgb_16 = { .green = {.offset = 5, .length = 6,}, .blue = {.offset = 0, .length = 5,}, .transp = {.offset = 0, .length = 0,}, + .bits_per_pixel = 16, }; static struct imx_ipu_fb_rgb def_rgb_24 = { @@ -272,6 +274,7 @@ static struct imx_ipu_fb_rgb def_rgb_24 = { .green = {.offset = 8, .length = 8,}, .blue = {.offset = 0, .length = 8,}, .transp = {.offset = 0, .length = 0,}, + .bits_per_pixel = 24, }; static struct imx_ipu_fb_rgb def_rgb_32 = { @@ -279,6 +282,7 @@ static struct imx_ipu_fb_rgb def_rgb_32 = { .green = {.offset = 8, .length = 8,}, .blue = {.offset = 0, .length = 8,}, .transp = {.offset = 24, .length = 8,}, + .bits_per_pixel = 32, }; #define IPU_CPMEM_WORD(word, ofs, size) ((((word) * 160 + (ofs)) << 8) | (size)) @@ -486,6 +490,59 @@ static int sdc_init_panel(struct fb_info *info, enum disp_data_mapping fmt) return 0; } +int ipu_cpmem_set_format_rgb(struct ipu_ch_param *p, struct imx_ipu_fb_rgb *rgb) +{ + int bpp = 0, npb = 0, ro, go, bo, to; + + ro = rgb->bits_per_pixel - rgb->red.length - rgb->red.offset; + go = rgb->bits_per_pixel - rgb->green.length - rgb->green.offset; + bo = rgb->bits_per_pixel - rgb->blue.length - rgb->blue.offset; + to = rgb->bits_per_pixel - rgb->transp.length - rgb->transp.offset; + + ipu_ch_param_write_field(p, IPU_FIELD_WID0, rgb->red.length - 1); + ipu_ch_param_write_field(p, IPU_FIELD_OFS0, ro); + ipu_ch_param_write_field(p, IPU_FIELD_WID1, rgb->green.length - 1); + ipu_ch_param_write_field(p, IPU_FIELD_OFS1, go); + ipu_ch_param_write_field(p, IPU_FIELD_WID2, rgb->blue.length - 1); + ipu_ch_param_write_field(p, IPU_FIELD_OFS2, bo); + + if (rgb->transp.length) { + ipu_ch_param_write_field(p, IPU_FIELD_WID3, rgb->transp.length - 1); + ipu_ch_param_write_field(p, IPU_FIELD_OFS3, to); + } else { + ipu_ch_param_write_field(p, IPU_FIELD_WID3, 7); + ipu_ch_param_write_field(p, IPU_FIELD_OFS3, rgb->bits_per_pixel); + } + + switch (rgb->bits_per_pixel) { + case 32: + bpp = 0; + npb = 7; + break; + case 24: + bpp = 1; + npb = 7; + break; + case 16: + bpp = 2; + npb = 15; + break; + case 8: + bpp = 3; + npb = 31; + break; + default: + return -EINVAL; + } + + ipu_ch_param_write_field(p, IPU_FIELD_BPP, bpp); + ipu_ch_param_write_field(p, IPU_FIELD_PFS, 4); + ipu_ch_param_write_field(p, IPU_FIELD_NPB, npb); + ipu_ch_param_write_field(p, IPU_FIELD_SAT, 2); + + return 0; +} + static void ipu_ch_param_set_size(struct ipu_ch_param *p, u32 pixel_fmt, uint16_t width, uint16_t height, uint16_t stride) @@ -498,30 +555,10 @@ static void ipu_ch_param_set_size(struct ipu_ch_param *p, /* See above, for further formats see the Linux driver */ switch (pixel_fmt) { case IPU_PIX_FMT_RGB565: - ipu_ch_param_write_field(p, IPU_FIELD_BPP, 2); - ipu_ch_param_write_field(p, IPU_FIELD_PFS, 4); - ipu_ch_param_write_field(p, IPU_FIELD_NPB, 7); - ipu_ch_param_write_field(p, IPU_FIELD_SAT, 2); /* SAT = 32-bit access */ - ipu_ch_param_write_field(p, IPU_FIELD_OFS0, 0); /* Red bit offset */ - ipu_ch_param_write_field(p, IPU_FIELD_OFS1, 5); /* Green bit offset */ - ipu_ch_param_write_field(p, IPU_FIELD_OFS2, 11); /* Blue bit offset */ - ipu_ch_param_write_field(p, IPU_FIELD_OFS3, 16); /* Alpha bit offset */ - ipu_ch_param_write_field(p, IPU_FIELD_WID0, 4); /* Red bit width - 1 */ - ipu_ch_param_write_field(p, IPU_FIELD_WID1, 5); /* Green bit width - 1 */ - ipu_ch_param_write_field(p, IPU_FIELD_WID2, 4); /* Blue bit width - 1 */ + ipu_cpmem_set_format_rgb(p, &def_rgb_16); break; case IPU_PIX_FMT_RGB24: - ipu_ch_param_write_field(p, IPU_FIELD_BPP, 1); /* 24 BPP & RGB PFS */ - ipu_ch_param_write_field(p, IPU_FIELD_PFS, 4); - ipu_ch_param_write_field(p, IPU_FIELD_NPB, 7); - ipu_ch_param_write_field(p, IPU_FIELD_SAT, 2); /* SAT = 32-bit access */ - ipu_ch_param_write_field(p, IPU_FIELD_OFS0, 16); /* Red bit offset */ - ipu_ch_param_write_field(p, IPU_FIELD_OFS1, 8); /* Green bit offset */ - ipu_ch_param_write_field(p, IPU_FIELD_OFS2, 0); /* Blue bit offset */ - ipu_ch_param_write_field(p, IPU_FIELD_OFS3, 24); /* Alpha bit offset */ - ipu_ch_param_write_field(p, IPU_FIELD_WID0, 7); /* Red bit width - 1 */ - ipu_ch_param_write_field(p, IPU_FIELD_WID1, 7); /* Green bit width - 1 */ - ipu_ch_param_write_field(p, IPU_FIELD_WID2, 7); /* Blue bit width - 1 */ + ipu_cpmem_set_format_rgb(p, &def_rgb_24); break; default: break; @@ -586,17 +623,6 @@ static void ipu_init_channel_buffer(struct ipu_fb_info *fbi, ipu_ch_param_set_buffer(&p, fbmem, NULL); - /* Some channels (rotation) have restriction on burst length */ - switch (channel) { - case IDMAC_SDC_0: - case IDMAC_SDC_1: - /* In original code only IPU_PIX_FMT_RGB565 was setting burst */ - params.pp.npb = 16 - 1; - break; - default: - break; - } - ipu_write_param_mem(fbi, dma_param_addr(channel), &p, 10); /* Disable double-buffering */ -- 1.8.5.1 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox