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