471 lines
16 KiB
C
471 lines
16 KiB
C
/*
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* Copyright (C) 2009 Francisco Jerez.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "ch7006_priv.h"
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const char * const ch7006_tv_norm_names[] = {
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[TV_NORM_PAL] = "PAL",
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[TV_NORM_PAL_M] = "PAL-M",
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[TV_NORM_PAL_N] = "PAL-N",
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[TV_NORM_PAL_NC] = "PAL-Nc",
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[TV_NORM_PAL_60] = "PAL-60",
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[TV_NORM_NTSC_M] = "NTSC-M",
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[TV_NORM_NTSC_J] = "NTSC-J",
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};
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#define NTSC_LIKE_TIMINGS .vrefresh = 60 * fixed1/1.001, \
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.vdisplay = 480, \
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.vtotal = 525, \
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.hvirtual = 660
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#define PAL_LIKE_TIMINGS .vrefresh = 50 * fixed1, \
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.vdisplay = 576, \
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.vtotal = 625, \
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.hvirtual = 810
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const struct ch7006_tv_norm_info ch7006_tv_norms[] = {
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[TV_NORM_NTSC_M] = {
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NTSC_LIKE_TIMINGS,
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.black_level = 0.339 * fixed1,
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.subc_freq = 3579545 * fixed1,
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.dispmode = bitfs(CH7006_DISPMODE_OUTPUT_STD, NTSC),
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.voffset = 0,
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},
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[TV_NORM_NTSC_J] = {
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NTSC_LIKE_TIMINGS,
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.black_level = 0.286 * fixed1,
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.subc_freq = 3579545 * fixed1,
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.dispmode = bitfs(CH7006_DISPMODE_OUTPUT_STD, NTSC_J),
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.voffset = 0,
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},
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[TV_NORM_PAL] = {
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PAL_LIKE_TIMINGS,
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.black_level = 0.3 * fixed1,
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.subc_freq = 4433618.75 * fixed1,
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.dispmode = bitfs(CH7006_DISPMODE_OUTPUT_STD, PAL),
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.voffset = 0,
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},
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[TV_NORM_PAL_M] = {
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NTSC_LIKE_TIMINGS,
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.black_level = 0.339 * fixed1,
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.subc_freq = 3575611.433 * fixed1,
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.dispmode = bitfs(CH7006_DISPMODE_OUTPUT_STD, PAL_M),
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.voffset = 16,
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},
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/* The following modes seem to work right but they're
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* undocumented */
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[TV_NORM_PAL_N] = {
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PAL_LIKE_TIMINGS,
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.black_level = 0.339 * fixed1,
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.subc_freq = 4433618.75 * fixed1,
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.dispmode = bitfs(CH7006_DISPMODE_OUTPUT_STD, PAL),
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.voffset = 0,
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},
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[TV_NORM_PAL_NC] = {
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PAL_LIKE_TIMINGS,
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.black_level = 0.3 * fixed1,
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.subc_freq = 3582056.25 * fixed1,
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.dispmode = bitfs(CH7006_DISPMODE_OUTPUT_STD, PAL),
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.voffset = 0,
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},
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[TV_NORM_PAL_60] = {
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NTSC_LIKE_TIMINGS,
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.black_level = 0.3 * fixed1,
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.subc_freq = 4433618.75 * fixed1,
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.dispmode = bitfs(CH7006_DISPMODE_OUTPUT_STD, PAL_M),
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.voffset = 16,
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},
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};
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#define __MODE(f, hd, vd, ht, vt, hsynp, vsynp, \
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subc, scale, scale_mask, norm_mask, e_hd, e_vd) { \
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.mode = { \
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.name = #hd "x" #vd, \
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.status = 0, \
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.type = DRM_MODE_TYPE_DRIVER, \
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.clock = f, \
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.hdisplay = hd, \
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.hsync_start = e_hd + 16, \
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.hsync_end = e_hd + 80, \
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.htotal = ht, \
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.hskew = 0, \
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.vdisplay = vd, \
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.vsync_start = vd + 10, \
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.vsync_end = vd + 26, \
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.vtotal = vt, \
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.vscan = 0, \
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.flags = DRM_MODE_FLAG_##hsynp##HSYNC | \
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DRM_MODE_FLAG_##vsynp##VSYNC, \
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}, \
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.enc_hdisp = e_hd, \
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.enc_vdisp = e_vd, \
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.subc_coeff = subc * fixed1, \
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.dispmode = bitfs(CH7006_DISPMODE_SCALING_RATIO, scale) | \
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bitfs(CH7006_DISPMODE_INPUT_RES, e_hd##x##e_vd), \
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.valid_scales = scale_mask, \
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.valid_norms = norm_mask \
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}
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#define MODE(f, hd, vd, ht, vt, hsynp, vsynp, \
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subc, scale, scale_mask, norm_mask) \
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__MODE(f, hd, vd, ht, vt, hsynp, vsynp, subc, scale, \
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scale_mask, norm_mask, hd, vd)
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#define NTSC_LIKE (1 << TV_NORM_NTSC_M | 1 << TV_NORM_NTSC_J | \
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1 << TV_NORM_PAL_M | 1 << TV_NORM_PAL_60)
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#define PAL_LIKE (1 << TV_NORM_PAL | 1 << TV_NORM_PAL_N | 1 << TV_NORM_PAL_NC)
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const struct ch7006_mode ch7006_modes[] = {
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MODE(21000, 512, 384, 840, 500, N, N, 181.797557582, 5_4, 0x6, PAL_LIKE),
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MODE(26250, 512, 384, 840, 625, N, N, 145.438046066, 1_1, 0x1, PAL_LIKE),
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MODE(20140, 512, 384, 800, 420, N, N, 213.257083791, 5_4, 0x4, NTSC_LIKE),
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MODE(24671, 512, 384, 784, 525, N, N, 174.0874153, 1_1, 0x3, NTSC_LIKE),
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MODE(28125, 720, 400, 1125, 500, N, N, 135.742176298, 5_4, 0x6, PAL_LIKE),
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MODE(34875, 720, 400, 1116, 625, N, N, 109.469496898, 1_1, 0x1, PAL_LIKE),
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MODE(23790, 720, 400, 945, 420, N, N, 160.475642016, 5_4, 0x4, NTSC_LIKE),
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MODE(29455, 720, 400, 936, 525, N, N, 129.614941843, 1_1, 0x3, NTSC_LIKE),
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MODE(25000, 640, 400, 1000, 500, N, N, 152.709948279, 5_4, 0x6, PAL_LIKE),
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MODE(31500, 640, 400, 1008, 625, N, N, 121.198371646, 1_1, 0x1, PAL_LIKE),
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MODE(21147, 640, 400, 840, 420, N, N, 180.535097338, 5_4, 0x4, NTSC_LIKE),
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MODE(26434, 640, 400, 840, 525, N, N, 144.42807787, 1_1, 0x2, NTSC_LIKE),
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MODE(30210, 640, 400, 840, 600, N, N, 126.374568276, 7_8, 0x1, NTSC_LIKE),
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MODE(21000, 640, 480, 840, 500, N, N, 181.797557582, 5_4, 0x4, PAL_LIKE),
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MODE(26250, 640, 480, 840, 625, N, N, 145.438046066, 1_1, 0x2, PAL_LIKE),
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MODE(31500, 640, 480, 840, 750, N, N, 121.198371646, 5_6, 0x1, PAL_LIKE),
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MODE(24671, 640, 480, 784, 525, N, N, 174.0874153, 1_1, 0x4, NTSC_LIKE),
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MODE(28196, 640, 480, 784, 600, N, N, 152.326488422, 7_8, 0x2, NTSC_LIKE),
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MODE(30210, 640, 480, 800, 630, N, N, 142.171389101, 5_6, 0x1, NTSC_LIKE),
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__MODE(29500, 720, 576, 944, 625, P, P, 145.592111636, 1_1, 0x7, PAL_LIKE, 800, 600),
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MODE(36000, 800, 600, 960, 750, P, P, 119.304647022, 5_6, 0x6, PAL_LIKE),
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MODE(39000, 800, 600, 936, 836, P, P, 110.127366499, 3_4, 0x1, PAL_LIKE),
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MODE(39273, 800, 600, 1040, 630, P, P, 145.816809399, 5_6, 0x4, NTSC_LIKE),
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MODE(43636, 800, 600, 1040, 700, P, P, 131.235128487, 3_4, 0x2, NTSC_LIKE),
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MODE(47832, 800, 600, 1064, 750, P, P, 119.723275165, 7_10, 0x1, NTSC_LIKE),
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{}
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};
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const struct ch7006_mode *ch7006_lookup_mode(struct drm_encoder *encoder,
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const struct drm_display_mode *drm_mode)
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{
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struct ch7006_priv *priv = to_ch7006_priv(encoder);
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const struct ch7006_mode *mode;
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for (mode = ch7006_modes; mode->mode.clock; mode++) {
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if (~mode->valid_norms & 1<<priv->norm)
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continue;
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if (mode->mode.hdisplay != drm_mode->hdisplay ||
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mode->mode.vdisplay != drm_mode->vdisplay ||
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mode->mode.vtotal != drm_mode->vtotal ||
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mode->mode.htotal != drm_mode->htotal ||
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mode->mode.clock != drm_mode->clock)
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continue;
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return mode;
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}
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return NULL;
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}
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/* Some common HW state calculation code */
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void ch7006_setup_levels(struct drm_encoder *encoder)
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{
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struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
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struct ch7006_priv *priv = to_ch7006_priv(encoder);
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uint8_t *regs = priv->state.regs;
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const struct ch7006_tv_norm_info *norm = &ch7006_tv_norms[priv->norm];
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int gain;
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int black_level;
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/* Set DAC_GAIN if the voltage drop between white and black is
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* high enough. */
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if (norm->black_level < 339*fixed1/1000) {
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gain = 76;
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regs[CH7006_INPUT_FORMAT] |= CH7006_INPUT_FORMAT_DAC_GAIN;
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} else {
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gain = 71;
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regs[CH7006_INPUT_FORMAT] &= ~CH7006_INPUT_FORMAT_DAC_GAIN;
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}
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black_level = round_fixed(norm->black_level*26625)/gain;
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/* Correct it with the specified brightness. */
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black_level = interpolate(90, black_level, 208, priv->brightness);
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regs[CH7006_BLACK_LEVEL] = bitf(CH7006_BLACK_LEVEL_0, black_level);
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ch7006_dbg(client, "black level: %d\n", black_level);
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}
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void ch7006_setup_subcarrier(struct drm_encoder *encoder)
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{
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struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
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struct ch7006_priv *priv = to_ch7006_priv(encoder);
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struct ch7006_state *state = &priv->state;
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const struct ch7006_tv_norm_info *norm = &ch7006_tv_norms[priv->norm];
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const struct ch7006_mode *mode = priv->mode;
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uint32_t subc_inc;
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subc_inc = round_fixed((mode->subc_coeff >> 8)
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* (norm->subc_freq >> 24));
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setbitf(state, CH7006_SUBC_INC0, 28, subc_inc);
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setbitf(state, CH7006_SUBC_INC1, 24, subc_inc);
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setbitf(state, CH7006_SUBC_INC2, 20, subc_inc);
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setbitf(state, CH7006_SUBC_INC3, 16, subc_inc);
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setbitf(state, CH7006_SUBC_INC4, 12, subc_inc);
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setbitf(state, CH7006_SUBC_INC5, 8, subc_inc);
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setbitf(state, CH7006_SUBC_INC6, 4, subc_inc);
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setbitf(state, CH7006_SUBC_INC7, 0, subc_inc);
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ch7006_dbg(client, "subcarrier inc: %u\n", subc_inc);
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}
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void ch7006_setup_pll(struct drm_encoder *encoder)
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{
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struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
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struct ch7006_priv *priv = to_ch7006_priv(encoder);
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uint8_t *regs = priv->state.regs;
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const struct ch7006_mode *mode = priv->mode;
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int n, best_n = 0;
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int m, best_m = 0;
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int freq, best_freq = 0;
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for (n = 0; n < CH7006_MAXN; n++) {
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for (m = 0; m < CH7006_MAXM; m++) {
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freq = CH7006_FREQ0*(n+2)/(m+2);
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if (abs(freq - mode->mode.clock) <
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abs(best_freq - mode->mode.clock)) {
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best_freq = freq;
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best_n = n;
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best_m = m;
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}
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}
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}
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regs[CH7006_PLLOV] = bitf(CH7006_PLLOV_N_8, best_n) |
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bitf(CH7006_PLLOV_M_8, best_m);
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regs[CH7006_PLLM] = bitf(CH7006_PLLM_0, best_m);
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regs[CH7006_PLLN] = bitf(CH7006_PLLN_0, best_n);
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if (best_n < 108)
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regs[CH7006_PLL_CONTROL] |= CH7006_PLL_CONTROL_CAPACITOR;
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else
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regs[CH7006_PLL_CONTROL] &= ~CH7006_PLL_CONTROL_CAPACITOR;
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ch7006_dbg(client, "n=%d m=%d f=%d c=%d\n",
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best_n, best_m, best_freq, best_n < 108);
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}
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void ch7006_setup_power_state(struct drm_encoder *encoder)
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{
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struct ch7006_priv *priv = to_ch7006_priv(encoder);
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uint8_t *power = &priv->state.regs[CH7006_POWER];
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int subconnector;
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subconnector = priv->select_subconnector ? priv->select_subconnector :
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priv->subconnector;
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*power = CH7006_POWER_RESET;
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if (priv->last_dpms == DRM_MODE_DPMS_ON) {
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switch (subconnector) {
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case DRM_MODE_SUBCONNECTOR_SVIDEO:
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*power |= bitfs(CH7006_POWER_LEVEL, CVBS_OFF);
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break;
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case DRM_MODE_SUBCONNECTOR_Composite:
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*power |= bitfs(CH7006_POWER_LEVEL, SVIDEO_OFF);
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break;
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case DRM_MODE_SUBCONNECTOR_SCART:
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*power |= bitfs(CH7006_POWER_LEVEL, NORMAL) |
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CH7006_POWER_SCART;
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break;
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}
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} else {
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if (priv->chip_version >= 0x20)
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*power |= bitfs(CH7006_POWER_LEVEL, FULL_POWER_OFF);
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else
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*power |= bitfs(CH7006_POWER_LEVEL, POWER_OFF);
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}
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}
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void ch7006_setup_properties(struct drm_encoder *encoder)
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{
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struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
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struct ch7006_priv *priv = to_ch7006_priv(encoder);
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struct ch7006_state *state = &priv->state;
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const struct ch7006_tv_norm_info *norm = &ch7006_tv_norms[priv->norm];
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const struct ch7006_mode *ch_mode = priv->mode;
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const struct drm_display_mode *mode = &ch_mode->mode;
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uint8_t *regs = state->regs;
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int flicker, contrast, hpos, vpos;
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uint64_t scale, aspect;
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flicker = interpolate(0, 2, 3, priv->flicker);
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regs[CH7006_FFILTER] = bitf(CH7006_FFILTER_TEXT, flicker) |
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bitf(CH7006_FFILTER_LUMA, flicker) |
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bitf(CH7006_FFILTER_CHROMA, 1);
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contrast = interpolate(0, 5, 7, priv->contrast);
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regs[CH7006_CONTRAST] = bitf(CH7006_CONTRAST_0, contrast);
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scale = norm->vtotal*fixed1;
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do_div(scale, mode->vtotal);
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aspect = ch_mode->enc_hdisp*fixed1;
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do_div(aspect, ch_mode->enc_vdisp);
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hpos = round_fixed((norm->hvirtual * aspect - mode->hdisplay * scale)
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* priv->hmargin * mode->vtotal) / norm->vtotal / 100 / 4;
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setbitf(state, CH7006_POV, HPOS_8, hpos);
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setbitf(state, CH7006_HPOS, 0, hpos);
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vpos = max(0, norm->vdisplay - round_fixed(mode->vdisplay*scale)
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+ norm->voffset) * priv->vmargin / 100 / 2;
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setbitf(state, CH7006_POV, VPOS_8, vpos);
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setbitf(state, CH7006_VPOS, 0, vpos);
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ch7006_dbg(client, "hpos: %d, vpos: %d\n", hpos, vpos);
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}
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/* HW access functions */
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void ch7006_write(struct i2c_client *client, uint8_t addr, uint8_t val)
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{
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uint8_t buf[] = {addr, val};
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int ret;
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ret = i2c_master_send(client, buf, ARRAY_SIZE(buf));
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if (ret < 0)
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ch7006_err(client, "Error %d writing to subaddress 0x%x\n",
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ret, addr);
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}
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uint8_t ch7006_read(struct i2c_client *client, uint8_t addr)
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{
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uint8_t val;
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int ret;
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ret = i2c_master_send(client, &addr, sizeof(addr));
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if (ret < 0)
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goto fail;
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ret = i2c_master_recv(client, &val, sizeof(val));
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if (ret < 0)
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goto fail;
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return val;
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fail:
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ch7006_err(client, "Error %d reading from subaddress 0x%x\n",
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ret, addr);
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return 0;
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}
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void ch7006_state_load(struct i2c_client *client,
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struct ch7006_state *state)
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{
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ch7006_load_reg(client, state, CH7006_POWER);
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ch7006_load_reg(client, state, CH7006_DISPMODE);
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ch7006_load_reg(client, state, CH7006_FFILTER);
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ch7006_load_reg(client, state, CH7006_BWIDTH);
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ch7006_load_reg(client, state, CH7006_INPUT_FORMAT);
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ch7006_load_reg(client, state, CH7006_CLKMODE);
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ch7006_load_reg(client, state, CH7006_START_ACTIVE);
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ch7006_load_reg(client, state, CH7006_POV);
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ch7006_load_reg(client, state, CH7006_BLACK_LEVEL);
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ch7006_load_reg(client, state, CH7006_HPOS);
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ch7006_load_reg(client, state, CH7006_VPOS);
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ch7006_load_reg(client, state, CH7006_INPUT_SYNC);
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ch7006_load_reg(client, state, CH7006_DETECT);
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ch7006_load_reg(client, state, CH7006_CONTRAST);
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ch7006_load_reg(client, state, CH7006_PLLOV);
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ch7006_load_reg(client, state, CH7006_PLLM);
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|
ch7006_load_reg(client, state, CH7006_PLLN);
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|
ch7006_load_reg(client, state, CH7006_BCLKOUT);
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|
ch7006_load_reg(client, state, CH7006_SUBC_INC0);
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|
ch7006_load_reg(client, state, CH7006_SUBC_INC1);
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|
ch7006_load_reg(client, state, CH7006_SUBC_INC2);
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|
ch7006_load_reg(client, state, CH7006_SUBC_INC3);
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|
ch7006_load_reg(client, state, CH7006_SUBC_INC4);
|
|
ch7006_load_reg(client, state, CH7006_SUBC_INC5);
|
|
ch7006_load_reg(client, state, CH7006_SUBC_INC6);
|
|
ch7006_load_reg(client, state, CH7006_SUBC_INC7);
|
|
ch7006_load_reg(client, state, CH7006_PLL_CONTROL);
|
|
ch7006_load_reg(client, state, CH7006_CALC_SUBC_INC0);
|
|
}
|
|
|
|
void ch7006_state_save(struct i2c_client *client,
|
|
struct ch7006_state *state)
|
|
{
|
|
ch7006_save_reg(client, state, CH7006_POWER);
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|
|
|
ch7006_save_reg(client, state, CH7006_DISPMODE);
|
|
ch7006_save_reg(client, state, CH7006_FFILTER);
|
|
ch7006_save_reg(client, state, CH7006_BWIDTH);
|
|
ch7006_save_reg(client, state, CH7006_INPUT_FORMAT);
|
|
ch7006_save_reg(client, state, CH7006_CLKMODE);
|
|
ch7006_save_reg(client, state, CH7006_START_ACTIVE);
|
|
ch7006_save_reg(client, state, CH7006_POV);
|
|
ch7006_save_reg(client, state, CH7006_BLACK_LEVEL);
|
|
ch7006_save_reg(client, state, CH7006_HPOS);
|
|
ch7006_save_reg(client, state, CH7006_VPOS);
|
|
ch7006_save_reg(client, state, CH7006_INPUT_SYNC);
|
|
ch7006_save_reg(client, state, CH7006_DETECT);
|
|
ch7006_save_reg(client, state, CH7006_CONTRAST);
|
|
ch7006_save_reg(client, state, CH7006_PLLOV);
|
|
ch7006_save_reg(client, state, CH7006_PLLM);
|
|
ch7006_save_reg(client, state, CH7006_PLLN);
|
|
ch7006_save_reg(client, state, CH7006_BCLKOUT);
|
|
ch7006_save_reg(client, state, CH7006_SUBC_INC0);
|
|
ch7006_save_reg(client, state, CH7006_SUBC_INC1);
|
|
ch7006_save_reg(client, state, CH7006_SUBC_INC2);
|
|
ch7006_save_reg(client, state, CH7006_SUBC_INC3);
|
|
ch7006_save_reg(client, state, CH7006_SUBC_INC4);
|
|
ch7006_save_reg(client, state, CH7006_SUBC_INC5);
|
|
ch7006_save_reg(client, state, CH7006_SUBC_INC6);
|
|
ch7006_save_reg(client, state, CH7006_SUBC_INC7);
|
|
ch7006_save_reg(client, state, CH7006_PLL_CONTROL);
|
|
ch7006_save_reg(client, state, CH7006_CALC_SUBC_INC0);
|
|
|
|
state->regs[CH7006_FFILTER] = (state->regs[CH7006_FFILTER] & 0xf0) |
|
|
(state->regs[CH7006_FFILTER] & 0x0c) >> 2 |
|
|
(state->regs[CH7006_FFILTER] & 0x03) << 2;
|
|
}
|