From e78d834a2e39e86d733fdca41fc931dc5ecc4660 Mon Sep 17 00:00:00 2001 From: Martin Bugge Date: Tue, 10 Dec 2013 10:57:03 -0300 Subject: [PATCH] [media] adv7842: Re-worked query_dv_timings() This simplified the code quite a bit. Signed-off-by: Martin Bugge Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/adv7842.c | 112 +++++++++++------------------------- 1 file changed, 35 insertions(+), 77 deletions(-) diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c index b154f36740b4..22fa4ca8b51b 100644 --- a/drivers/media/i2c/adv7842.c +++ b/drivers/media/i2c/adv7842.c @@ -1314,6 +1314,8 @@ static int adv7842_query_dv_timings(struct v4l2_subdev *sd, struct v4l2_bt_timings *bt = &timings->bt; struct stdi_readback stdi = { 0 }; + v4l2_dbg(1, debug, sd, "%s:\n", __func__); + /* SDP block */ if (state->mode == ADV7842_MODE_SDP) return -ENODATA; @@ -1325,92 +1327,46 @@ static int adv7842_query_dv_timings(struct v4l2_subdev *sd, } bt->interlaced = stdi.interlaced ? V4L2_DV_INTERLACED : V4L2_DV_PROGRESSIVE; - bt->polarities = ((hdmi_read(sd, 0x05) & 0x10) ? V4L2_DV_VSYNC_POS_POL : 0) | - ((hdmi_read(sd, 0x05) & 0x20) ? V4L2_DV_HSYNC_POS_POL : 0); - bt->vsync = stdi.lcvs; if (is_digital_input(sd)) { - bool lock = hdmi_read(sd, 0x04) & 0x02; - bool interlaced = hdmi_read(sd, 0x0b) & 0x20; - unsigned w = (hdmi_read(sd, 0x07) & 0x1f) * 256 + hdmi_read(sd, 0x08); - unsigned h = (hdmi_read(sd, 0x09) & 0x1f) * 256 + hdmi_read(sd, 0x0a); - unsigned w_total = (hdmi_read(sd, 0x1e) & 0x3f) * 256 + - hdmi_read(sd, 0x1f); - unsigned h_total = ((hdmi_read(sd, 0x26) & 0x3f) * 256 + - hdmi_read(sd, 0x27)) / 2; - unsigned freq = (((hdmi_read(sd, 0x51) << 1) + - (hdmi_read(sd, 0x52) >> 7)) * 1000000) + - ((hdmi_read(sd, 0x52) & 0x7f) * 1000000) / 128; - int i; + uint32_t freq; + + timings->type = V4L2_DV_BT_656_1120; + bt->width = (hdmi_read(sd, 0x07) & 0x0f) * 256 + hdmi_read(sd, 0x08); + bt->height = (hdmi_read(sd, 0x09) & 0x0f) * 256 + hdmi_read(sd, 0x0a); + freq = (hdmi_read(sd, 0x06) * 1000000) + + ((hdmi_read(sd, 0x3b) & 0x30) >> 4) * 250000; if (is_hdmi(sd)) { /* adjust for deep color mode */ - freq = freq * 8 / (((hdmi_read(sd, 0x0b) & 0xc0)>>6) * 2 + 8); - } - - /* No lock? */ - if (!lock) { - v4l2_dbg(1, debug, sd, "%s: no lock on TMDS signal\n", __func__); - return -ENOLCK; + freq = freq * 8 / (((hdmi_read(sd, 0x0b) & 0xc0) >> 5) + 8); } - /* Interlaced? */ - if (interlaced) { - v4l2_dbg(1, debug, sd, "%s: interlaced video not supported\n", __func__); - return -ERANGE; - } - - for (i = 0; v4l2_dv_timings_presets[i].bt.width; i++) { - const struct v4l2_bt_timings *bt = &v4l2_dv_timings_presets[i].bt; - - if (!v4l2_valid_dv_timings(&v4l2_dv_timings_presets[i], - adv7842_get_dv_timings_cap(sd), - adv7842_check_dv_timings, NULL)) - continue; - if (w_total != htotal(bt) || h_total != vtotal(bt)) - continue; - - if (w != bt->width || h != bt->height) - continue; - - if (abs(freq - bt->pixelclock) > 1000000) - continue; - *timings = v4l2_dv_timings_presets[i]; - return 0; - } - - timings->type = V4L2_DV_BT_656_1120; - - bt->width = w; - bt->height = h; - bt->interlaced = (hdmi_read(sd, 0x0b) & 0x20) ? - V4L2_DV_INTERLACED : V4L2_DV_PROGRESSIVE; - bt->polarities = ((hdmi_read(sd, 0x05) & 0x10) ? - V4L2_DV_VSYNC_POS_POL : 0) | ((hdmi_read(sd, 0x05) & 0x20) ? - V4L2_DV_HSYNC_POS_POL : 0); - bt->pixelclock = (((hdmi_read(sd, 0x51) << 1) + - (hdmi_read(sd, 0x52) >> 7)) * 1000000) + - ((hdmi_read(sd, 0x52) & 0x7f) * 1000000) / 128; - bt->hfrontporch = (hdmi_read(sd, 0x20) & 0x1f) * 256 + + bt->pixelclock = freq; + bt->hfrontporch = (hdmi_read(sd, 0x20) & 0x03) * 256 + hdmi_read(sd, 0x21); - bt->hsync = (hdmi_read(sd, 0x22) & 0x1f) * 256 + + bt->hsync = (hdmi_read(sd, 0x22) & 0x03) * 256 + hdmi_read(sd, 0x23); - bt->hbackporch = (hdmi_read(sd, 0x24) & 0x1f) * 256 + + bt->hbackporch = (hdmi_read(sd, 0x24) & 0x03) * 256 + hdmi_read(sd, 0x25); - bt->vfrontporch = ((hdmi_read(sd, 0x2a) & 0x3f) * 256 + - hdmi_read(sd, 0x2b)) / 2; - bt->il_vfrontporch = ((hdmi_read(sd, 0x2c) & 0x3f) * 256 + - hdmi_read(sd, 0x2d)) / 2; - bt->vsync = ((hdmi_read(sd, 0x2e) & 0x3f) * 256 + - hdmi_read(sd, 0x2f)) / 2; - bt->il_vsync = ((hdmi_read(sd, 0x30) & 0x3f) * 256 + - hdmi_read(sd, 0x31)) / 2; - bt->vbackporch = ((hdmi_read(sd, 0x32) & 0x3f) * 256 + - hdmi_read(sd, 0x33)) / 2; - bt->il_vbackporch = ((hdmi_read(sd, 0x34) & 0x3f) * 256 + - hdmi_read(sd, 0x35)) / 2; - - bt->standards = 0; - bt->flags = 0; + bt->vfrontporch = ((hdmi_read(sd, 0x2a) & 0x1f) * 256 + + hdmi_read(sd, 0x2b)) / 2; + bt->vsync = ((hdmi_read(sd, 0x2e) & 0x1f) * 256 + + hdmi_read(sd, 0x2f)) / 2; + bt->vbackporch = ((hdmi_read(sd, 0x32) & 0x1f) * 256 + + hdmi_read(sd, 0x33)) / 2; + bt->polarities = ((hdmi_read(sd, 0x05) & 0x10) ? V4L2_DV_VSYNC_POS_POL : 0) | + ((hdmi_read(sd, 0x05) & 0x20) ? V4L2_DV_HSYNC_POS_POL : 0); + if (bt->interlaced == V4L2_DV_INTERLACED) { + bt->height += (hdmi_read(sd, 0x0b) & 0x0f) * 256 + + hdmi_read(sd, 0x0c); + bt->il_vfrontporch = ((hdmi_read(sd, 0x2c) & 0x1f) * 256 + + hdmi_read(sd, 0x2d)) / 2; + bt->il_vsync = ((hdmi_read(sd, 0x30) & 0x1f) * 256 + + hdmi_read(sd, 0x31)) / 2; + bt->vbackporch = ((hdmi_read(sd, 0x34) & 0x1f) * 256 + + hdmi_read(sd, 0x35)) / 2; + } + adv7842_fill_optional_dv_timings_fields(sd, timings); } else { /* Interlaced? */ if (stdi.interlaced) { @@ -1437,6 +1393,8 @@ static int adv7842_s_dv_timings(struct v4l2_subdev *sd, struct v4l2_bt_timings *bt; int err; + v4l2_dbg(1, debug, sd, "%s:\n", __func__); + if (state->mode == ADV7842_MODE_SDP) return -ENODATA; -- 2.30.2