diff options
Diffstat (limited to 'drivers/media/i2c/adv7604.c')
-rw-r--r-- | drivers/media/i2c/adv7604.c | 645 |
1 files changed, 445 insertions, 200 deletions
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c index a324106b..71c8570 100644 --- a/drivers/media/i2c/adv7604.c +++ b/drivers/media/i2c/adv7604.c @@ -53,8 +53,6 @@ MODULE_LICENSE("GPL"); /* ADV7604 system clock frequency */ #define ADV7604_fsc (28636360) -#define DIGITAL_INPUT (state->mode == ADV7604_MODE_HDMI) - /* ********************************************************************** * @@ -67,17 +65,19 @@ struct adv7604_state { struct v4l2_subdev sd; struct media_pad pad; struct v4l2_ctrl_handler hdl; - enum adv7604_mode mode; + enum adv7604_input_port selected_input; struct v4l2_dv_timings timings; - u8 edid[256]; - unsigned edid_blocks; + struct { + u8 edid[256]; + u32 present; + unsigned blocks; + } edid; + u16 spa_port_a[2]; struct v4l2_fract aspect_ratio; u32 rgb_quantization_range; struct workqueue_struct *work_queues; struct delayed_work delayed_work_enable_hotplug; - bool connector_hdmi; bool restart_stdi_once; - u32 prev_input_status; /* i2c clients */ struct i2c_client *i2c_avlink; @@ -160,6 +160,7 @@ static const struct v4l2_dv_timings adv7604_timings[] = { V4L2_DV_BT_DMT_1792X1344P60, V4L2_DV_BT_DMT_1856X1392P60, V4L2_DV_BT_DMT_1920X1200P60_RB, + V4L2_DV_BT_DMT_1366X768P60_RB, V4L2_DV_BT_DMT_1366X768P60, V4L2_DV_BT_DMT_1920X1080P60, { }, @@ -507,57 +508,31 @@ static inline int edid_read_block(struct v4l2_subdev *sd, unsigned len, u8 *val) return 0; } -static void adv7604_delayed_work_enable_hotplug(struct work_struct *work) -{ - struct delayed_work *dwork = to_delayed_work(work); - struct adv7604_state *state = container_of(dwork, struct adv7604_state, - delayed_work_enable_hotplug); - struct v4l2_subdev *sd = &state->sd; - - v4l2_dbg(2, debug, sd, "%s: enable hotplug\n", __func__); - - v4l2_subdev_notify(sd, ADV7604_HOTPLUG, (void *)1); -} - static inline int edid_write_block(struct v4l2_subdev *sd, unsigned len, const u8 *val) { - struct i2c_client *client = v4l2_get_subdevdata(sd); struct adv7604_state *state = to_state(sd); int err = 0; int i; v4l2_dbg(2, debug, sd, "%s: write EDID block (%d byte)\n", __func__, len); - v4l2_subdev_notify(sd, ADV7604_HOTPLUG, (void *)0); - - /* Disables I2C access to internal EDID ram from DDC port */ - rep_write_and_or(sd, 0x77, 0xf0, 0x0); - for (i = 0; !err && i < len; i += I2C_SMBUS_BLOCK_MAX) err = adv_smbus_write_i2c_block_data(state->i2c_edid, i, I2C_SMBUS_BLOCK_MAX, val + i); - if (err) - return err; + return err; +} - /* adv7604 calculates the checksums and enables I2C access to internal - EDID ram from DDC port. */ - rep_write_and_or(sd, 0x77, 0xf0, 0x1); +static void adv7604_delayed_work_enable_hotplug(struct work_struct *work) +{ + struct delayed_work *dwork = to_delayed_work(work); + struct adv7604_state *state = container_of(dwork, struct adv7604_state, + delayed_work_enable_hotplug); + struct v4l2_subdev *sd = &state->sd; - for (i = 0; i < 1000; i++) { - if (rep_read(sd, 0x7d) & 1) - break; - mdelay(1); - } - if (i == 1000) { - v4l_err(client, "error enabling edid\n"); - return -EIO; - } + v4l2_dbg(2, debug, sd, "%s: enable hotplug\n", __func__); - /* enable hotplug after 100 ms */ - queue_delayed_work(state->work_queues, - &state->delayed_work_enable_hotplug, HZ / 10); - return 0; + v4l2_subdev_notify(sd, ADV7604_HOTPLUG, (void *)&state->edid.present); } static inline int hdmi_read(struct v4l2_subdev *sd, u8 reg) @@ -574,6 +549,11 @@ static inline int hdmi_write(struct v4l2_subdev *sd, u8 reg, u8 val) return adv_smbus_write_byte_data(state->i2c_hdmi, reg, val); } +static inline int hdmi_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) +{ + return hdmi_write(sd, reg, (hdmi_read(sd, reg) & mask) | val); +} + static inline int test_read(struct v4l2_subdev *sd, u8 reg) { struct adv7604_state *state = to_state(sd); @@ -623,6 +603,26 @@ static inline int vdp_write(struct v4l2_subdev *sd, u8 reg, u8 val) /* ----------------------------------------------------------------------- */ +static inline bool is_analog_input(struct v4l2_subdev *sd) +{ + struct adv7604_state *state = to_state(sd); + + return state->selected_input == ADV7604_INPUT_VGA_RGB || + state->selected_input == ADV7604_INPUT_VGA_COMP; +} + +static inline bool is_digital_input(struct v4l2_subdev *sd) +{ + struct adv7604_state *state = to_state(sd); + + return state->selected_input == ADV7604_INPUT_HDMI_PORT_A || + state->selected_input == ADV7604_INPUT_HDMI_PORT_B || + state->selected_input == ADV7604_INPUT_HDMI_PORT_C || + state->selected_input == ADV7604_INPUT_HDMI_PORT_D; +} + +/* ----------------------------------------------------------------------- */ + #ifdef CONFIG_VIDEO_ADV_DEBUG static void adv7604_inv_register(struct v4l2_subdev *sd) { @@ -696,45 +696,47 @@ static int adv7604_g_register(struct v4l2_subdev *sd, static int adv7604_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg) { + u8 val = reg->val & 0xff; + switch (reg->reg >> 8) { case 0: - io_write(sd, reg->reg & 0xff, reg->val & 0xff); + io_write(sd, reg->reg & 0xff, val); break; case 1: - avlink_write(sd, reg->reg & 0xff, reg->val & 0xff); + avlink_write(sd, reg->reg & 0xff, val); break; case 2: - cec_write(sd, reg->reg & 0xff, reg->val & 0xff); + cec_write(sd, reg->reg & 0xff, val); break; case 3: - infoframe_write(sd, reg->reg & 0xff, reg->val & 0xff); + infoframe_write(sd, reg->reg & 0xff, val); break; case 4: - esdp_write(sd, reg->reg & 0xff, reg->val & 0xff); + esdp_write(sd, reg->reg & 0xff, val); break; case 5: - dpp_write(sd, reg->reg & 0xff, reg->val & 0xff); + dpp_write(sd, reg->reg & 0xff, val); break; case 6: - afe_write(sd, reg->reg & 0xff, reg->val & 0xff); + afe_write(sd, reg->reg & 0xff, val); break; case 7: - rep_write(sd, reg->reg & 0xff, reg->val & 0xff); + rep_write(sd, reg->reg & 0xff, val); break; case 8: - edid_write(sd, reg->reg & 0xff, reg->val & 0xff); + edid_write(sd, reg->reg & 0xff, val); break; case 9: - hdmi_write(sd, reg->reg & 0xff, reg->val & 0xff); + hdmi_write(sd, reg->reg & 0xff, val); break; case 0xa: - test_write(sd, reg->reg & 0xff, reg->val & 0xff); + test_write(sd, reg->reg & 0xff, val); break; case 0xb: - cp_write(sd, reg->reg & 0xff, reg->val & 0xff); + cp_write(sd, reg->reg & 0xff, val); break; case 0xc: - vdp_write(sd, reg->reg & 0xff, reg->val & 0xff); + vdp_write(sd, reg->reg & 0xff, val); break; default: v4l2_info(sd, "Register %03llx not supported\n", reg->reg); @@ -748,10 +750,13 @@ static int adv7604_s_register(struct v4l2_subdev *sd, static int adv7604_s_detect_tx_5v_ctrl(struct v4l2_subdev *sd) { struct adv7604_state *state = to_state(sd); + u8 reg_io_6f = io_read(sd, 0x6f); - /* port A only */ return v4l2_ctrl_s_ctrl(state->detect_tx_5v_ctrl, - ((io_read(sd, 0x6f) & 0x10) >> 4)); + ((reg_io_6f & 0x10) >> 4) | + ((reg_io_6f & 0x08) >> 2) | + (reg_io_6f & 0x04) | + ((reg_io_6f & 0x02) << 2)); } static int find_and_set_predefined_video_timings(struct v4l2_subdev *sd, @@ -759,12 +764,11 @@ static int find_and_set_predefined_video_timings(struct v4l2_subdev *sd, const struct adv7604_video_standards *predef_vid_timings, const struct v4l2_dv_timings *timings) { - struct adv7604_state *state = to_state(sd); int i; for (i = 0; predef_vid_timings[i].timings.bt.width; i++) { if (!v4l2_match_dv_timings(timings, &predef_vid_timings[i].timings, - DIGITAL_INPUT ? 250000 : 1000000)) + is_digital_input(sd) ? 250000 : 1000000)) continue; io_write(sd, 0x00, predef_vid_timings[i].vid_std); /* video std */ io_write(sd, 0x01, (predef_vid_timings[i].v_freq << 4) + @@ -799,27 +803,22 @@ static int configure_predefined_video_timings(struct v4l2_subdev *sd, cp_write(sd, 0xab, 0x00); cp_write(sd, 0xac, 0x00); - switch (state->mode) { - case ADV7604_MODE_COMP: - case ADV7604_MODE_GR: + if (is_analog_input(sd)) { err = find_and_set_predefined_video_timings(sd, 0x01, adv7604_prim_mode_comp, timings); if (err) err = find_and_set_predefined_video_timings(sd, 0x02, adv7604_prim_mode_gr, timings); - break; - case ADV7604_MODE_HDMI: + } else if (is_digital_input(sd)) { err = find_and_set_predefined_video_timings(sd, 0x05, adv7604_prim_mode_hdmi_comp, timings); if (err) err = find_and_set_predefined_video_timings(sd, 0x06, adv7604_prim_mode_hdmi_gr, timings); - break; - default: - v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n", - __func__, state->mode); + } else { + v4l2_dbg(2, debug, sd, "%s: Unknown port %d selected\n", + __func__, state->selected_input); err = -1; - break; } @@ -846,9 +845,7 @@ static void configure_custom_video_timings(struct v4l2_subdev *sd, v4l2_dbg(2, debug, sd, "%s\n", __func__); - switch (state->mode) { - case ADV7604_MODE_COMP: - case ADV7604_MODE_GR: + if (is_analog_input(sd)) { /* auto graphics */ io_write(sd, 0x00, 0x07); /* video std */ io_write(sd, 0x01, 0x02); /* prim mode */ @@ -858,33 +855,28 @@ static void configure_custom_video_timings(struct v4l2_subdev *sd, /* Should only be set in auto-graphics mode [REF_02, p. 91-92] */ /* setup PLL_DIV_MAN_EN and PLL_DIV_RATIO */ /* IO-map reg. 0x16 and 0x17 should be written in sequence */ - if (adv_smbus_write_i2c_block_data(client, 0x16, 2, pll)) { + if (adv_smbus_write_i2c_block_data(client, 0x16, 2, pll)) v4l2_err(sd, "writing to reg 0x16 and 0x17 failed\n"); - break; - } /* active video - horizontal timing */ cp_write(sd, 0xa2, (cp_start_sav >> 4) & 0xff); cp_write(sd, 0xa3, ((cp_start_sav & 0x0f) << 4) | - ((cp_start_eav >> 8) & 0x0f)); + ((cp_start_eav >> 8) & 0x0f)); cp_write(sd, 0xa4, cp_start_eav & 0xff); /* active video - vertical timing */ cp_write(sd, 0xa5, (cp_start_vbi >> 4) & 0xff); cp_write(sd, 0xa6, ((cp_start_vbi & 0xf) << 4) | - ((cp_end_vbi >> 8) & 0xf)); + ((cp_end_vbi >> 8) & 0xf)); cp_write(sd, 0xa7, cp_end_vbi & 0xff); - break; - case ADV7604_MODE_HDMI: + } else if (is_digital_input(sd)) { /* set default prim_mode/vid_std for HDMI according to [REF_03, c. 4.2] */ io_write(sd, 0x00, 0x02); /* video std */ io_write(sd, 0x01, 0x06); /* prim mode */ - break; - default: - v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n", - __func__, state->mode); - break; + } else { + v4l2_dbg(2, debug, sd, "%s: Unknown port %d selected\n", + __func__, state->selected_input); } cp_write(sd, 0x8f, (ch1_fr_ll >> 8) & 0x7); @@ -893,43 +885,149 @@ static void configure_custom_video_timings(struct v4l2_subdev *sd, cp_write(sd, 0xac, (height & 0x0f) << 4); } +static void adv7604_set_offset(struct v4l2_subdev *sd, bool auto_offset, u16 offset_a, u16 offset_b, u16 offset_c) +{ + struct adv7604_state *state = to_state(sd); + u8 offset_buf[4]; + + if (auto_offset) { + offset_a = 0x3ff; + offset_b = 0x3ff; + offset_c = 0x3ff; + } + + v4l2_dbg(2, debug, sd, "%s: %s offset: a = 0x%x, b = 0x%x, c = 0x%x\n", + __func__, auto_offset ? "Auto" : "Manual", + offset_a, offset_b, offset_c); + + offset_buf[0] = (cp_read(sd, 0x77) & 0xc0) | ((offset_a & 0x3f0) >> 4); + offset_buf[1] = ((offset_a & 0x00f) << 4) | ((offset_b & 0x3c0) >> 6); + offset_buf[2] = ((offset_b & 0x03f) << 2) | ((offset_c & 0x300) >> 8); + offset_buf[3] = offset_c & 0x0ff; + + /* Registers must be written in this order with no i2c access in between */ + if (adv_smbus_write_i2c_block_data(state->i2c_cp, 0x77, 4, offset_buf)) + v4l2_err(sd, "%s: i2c error writing to CP reg 0x77, 0x78, 0x79, 0x7a\n", __func__); +} + +static void adv7604_set_gain(struct v4l2_subdev *sd, bool auto_gain, u16 gain_a, u16 gain_b, u16 gain_c) +{ + struct adv7604_state *state = to_state(sd); + u8 gain_buf[4]; + u8 gain_man = 1; + u8 agc_mode_man = 1; + + if (auto_gain) { + gain_man = 0; + agc_mode_man = 0; + gain_a = 0x100; + gain_b = 0x100; + gain_c = 0x100; + } + + v4l2_dbg(2, debug, sd, "%s: %s gain: a = 0x%x, b = 0x%x, c = 0x%x\n", + __func__, auto_gain ? "Auto" : "Manual", + gain_a, gain_b, gain_c); + + gain_buf[0] = ((gain_man << 7) | (agc_mode_man << 6) | ((gain_a & 0x3f0) >> 4)); + gain_buf[1] = (((gain_a & 0x00f) << 4) | ((gain_b & 0x3c0) >> 6)); + gain_buf[2] = (((gain_b & 0x03f) << 2) | ((gain_c & 0x300) >> 8)); + gain_buf[3] = ((gain_c & 0x0ff)); + + /* Registers must be written in this order with no i2c access in between */ + if (adv_smbus_write_i2c_block_data(state->i2c_cp, 0x73, 4, gain_buf)) + v4l2_err(sd, "%s: i2c error writing to CP reg 0x73, 0x74, 0x75, 0x76\n", __func__); +} + static void set_rgb_quantization_range(struct v4l2_subdev *sd) { struct adv7604_state *state = to_state(sd); + bool rgb_output = io_read(sd, 0x02) & 0x02; + bool hdmi_signal = hdmi_read(sd, 0x05) & 0x80; + + v4l2_dbg(2, debug, sd, "%s: RGB quantization range: %d, RGB out: %d, HDMI: %d\n", + __func__, state->rgb_quantization_range, + rgb_output, hdmi_signal); + + adv7604_set_gain(sd, true, 0x0, 0x0, 0x0); + adv7604_set_offset(sd, true, 0x0, 0x0, 0x0); switch (state->rgb_quantization_range) { case V4L2_DV_RGB_RANGE_AUTO: - /* automatic */ - if (DIGITAL_INPUT && !(hdmi_read(sd, 0x05) & 0x80)) { - /* receiving DVI-D signal */ + if (state->selected_input == ADV7604_INPUT_VGA_RGB) { + /* Receiving analog RGB signal + * Set RGB full range (0-255) */ + io_write_and_or(sd, 0x02, 0x0f, 0x10); + break; + } + + if (state->selected_input == ADV7604_INPUT_VGA_COMP) { + /* Receiving analog YPbPr signal + * Set automode */ + io_write_and_or(sd, 0x02, 0x0f, 0xf0); + break; + } + + if (hdmi_signal) { + /* Receiving HDMI signal + * Set automode */ + io_write_and_or(sd, 0x02, 0x0f, 0xf0); + break; + } - /* ADV7604 selects RGB limited range regardless of - input format (CE/IT) in automatic mode */ - if (state->timings.bt.standards & V4L2_DV_BT_STD_CEA861) { - /* RGB limited range (16-235) */ - io_write_and_or(sd, 0x02, 0x0f, 0x00); + /* Receiving DVI-D signal + * ADV7604 selects RGB limited range regardless of + * input format (CE/IT) in automatic mode */ + if (state->timings.bt.standards & V4L2_DV_BT_STD_CEA861) { + /* RGB limited range (16-235) */ + io_write_and_or(sd, 0x02, 0x0f, 0x00); + } else { + /* RGB full range (0-255) */ + io_write_and_or(sd, 0x02, 0x0f, 0x10); + if (is_digital_input(sd) && rgb_output) { + adv7604_set_offset(sd, false, 0x40, 0x40, 0x40); } else { - /* RGB full range (0-255) */ - io_write_and_or(sd, 0x02, 0x0f, 0x10); + adv7604_set_gain(sd, false, 0xe0, 0xe0, 0xe0); + adv7604_set_offset(sd, false, 0x70, 0x70, 0x70); } - } else { - /* receiving HDMI or analog signal, set automode */ - io_write_and_or(sd, 0x02, 0x0f, 0xf0); } break; case V4L2_DV_RGB_RANGE_LIMITED: + if (state->selected_input == ADV7604_INPUT_VGA_COMP) { + /* YCrCb limited range (16-235) */ + io_write_and_or(sd, 0x02, 0x0f, 0x20); + break; + } + /* RGB limited range (16-235) */ io_write_and_or(sd, 0x02, 0x0f, 0x00); + break; case V4L2_DV_RGB_RANGE_FULL: + if (state->selected_input == ADV7604_INPUT_VGA_COMP) { + /* YCrCb full range (0-255) */ + io_write_and_or(sd, 0x02, 0x0f, 0x60); + break; + } + /* RGB full range (0-255) */ io_write_and_or(sd, 0x02, 0x0f, 0x10); + + if (is_analog_input(sd) || hdmi_signal) + break; + + /* Adjust gain/offset for DVI-D signals only */ + if (rgb_output) { + adv7604_set_offset(sd, false, 0x40, 0x40, 0x40); + } else { + adv7604_set_gain(sd, false, 0xe0, 0xe0, 0xe0); + adv7604_set_offset(sd, false, 0x70, 0x70, 0x70); + } break; } } - static int adv7604_s_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *sd = to_sd(ctrl); @@ -983,8 +1081,9 @@ static inline bool no_power(struct v4l2_subdev *sd) static inline bool no_signal_tmds(struct v4l2_subdev *sd) { - /* TODO port B, C and D */ - return !(io_read(sd, 0x6a) & 0x10); + struct adv7604_state *state = to_state(sd); + + return !(io_read(sd, 0x6a) & (0x10 >> state->selected_input)); } static inline bool no_lock_tmds(struct v4l2_subdev *sd) @@ -1011,7 +1110,6 @@ static inline bool no_lock_stdi(struct v4l2_subdev *sd) static inline bool no_signal(struct v4l2_subdev *sd) { - struct adv7604_state *state = to_state(sd); bool ret; ret = no_power(sd); @@ -1019,7 +1117,7 @@ static inline bool no_signal(struct v4l2_subdev *sd) ret |= no_lock_stdi(sd); ret |= no_lock_sspd(sd); - if (DIGITAL_INPUT) { + if (is_digital_input(sd)) { ret |= no_lock_tmds(sd); ret |= no_signal_tmds(sd); } @@ -1036,13 +1134,11 @@ static inline bool no_lock_cp(struct v4l2_subdev *sd) static int adv7604_g_input_status(struct v4l2_subdev *sd, u32 *status) { - struct adv7604_state *state = to_state(sd); - *status = 0; *status |= no_power(sd) ? V4L2_IN_ST_NO_POWER : 0; *status |= no_signal(sd) ? V4L2_IN_ST_NO_SIGNAL : 0; if (no_lock_cp(sd)) - *status |= DIGITAL_INPUT ? V4L2_IN_ST_NO_SYNC : V4L2_IN_ST_NO_H_LOCK; + *status |= is_digital_input(sd) ? V4L2_IN_ST_NO_SYNC : V4L2_IN_ST_NO_H_LOCK; v4l2_dbg(1, debug, sd, "%s: status = 0x%x\n", __func__, *status); @@ -1157,13 +1253,11 @@ static int adv7604_enum_dv_timings(struct v4l2_subdev *sd, static int adv7604_dv_timings_cap(struct v4l2_subdev *sd, struct v4l2_dv_timings_cap *cap) { - struct adv7604_state *state = to_state(sd); - cap->type = V4L2_DV_BT_656_1120; cap->bt.max_width = 1920; cap->bt.max_height = 1200; cap->bt.min_pixelclock = 25000000; - if (DIGITAL_INPUT) + if (is_digital_input(sd)) cap->bt.max_pixelclock = 225000000; else cap->bt.max_pixelclock = 170000000; @@ -1179,12 +1273,11 @@ static int adv7604_dv_timings_cap(struct v4l2_subdev *sd, static void adv7604_fill_optional_dv_timings_fields(struct v4l2_subdev *sd, struct v4l2_dv_timings *timings) { - struct adv7604_state *state = to_state(sd); int i; for (i = 0; adv7604_timings[i].bt.width; i++) { if (v4l2_match_dv_timings(timings, &adv7604_timings[i], - DIGITAL_INPUT ? 250000 : 1000000)) { + is_digital_input(sd) ? 250000 : 1000000)) { *timings = adv7604_timings[i]; break; } @@ -1204,6 +1297,7 @@ static int adv7604_query_dv_timings(struct v4l2_subdev *sd, memset(timings, 0, sizeof(struct v4l2_dv_timings)); if (no_signal(sd)) { + state->restart_stdi_once = true; v4l2_dbg(1, debug, sd, "%s: no valid signal\n", __func__); return -ENOLINK; } @@ -1216,7 +1310,7 @@ static int adv7604_query_dv_timings(struct v4l2_subdev *sd, bt->interlaced = stdi.interlaced ? V4L2_DV_INTERLACED : V4L2_DV_PROGRESSIVE; - if (DIGITAL_INPUT) { + if (is_digital_input(sd)) { uint32_t freq; timings->type = V4L2_DV_BT_656_1120; @@ -1305,8 +1399,8 @@ found: return -ENOLINK; } - if ((!DIGITAL_INPUT && bt->pixelclock > 170000000) || - (DIGITAL_INPUT && bt->pixelclock > 225000000)) { + if ((is_analog_input(sd) && bt->pixelclock > 170000000) || + (is_digital_input(sd) && bt->pixelclock > 225000000)) { v4l2_dbg(1, debug, sd, "%s: pixelclock out of range %d\n", __func__, (u32)bt->pixelclock); return -ERANGE; @@ -1329,10 +1423,15 @@ static int adv7604_s_dv_timings(struct v4l2_subdev *sd, if (!timings) return -EINVAL; + if (v4l2_match_dv_timings(&state->timings, timings, 0)) { + v4l2_dbg(1, debug, sd, "%s: no change\n", __func__); + return 0; + } + bt = &timings->bt; - if ((!DIGITAL_INPUT && bt->pixelclock > 170000000) || - (DIGITAL_INPUT && bt->pixelclock > 225000000)) { + if ((is_analog_input(sd) && bt->pixelclock > 170000000) || + (is_digital_input(sd) && bt->pixelclock > 225000000)) { v4l2_dbg(1, debug, sd, "%s: pixelclock out of range %d\n", __func__, (u32)bt->pixelclock); return -ERANGE; @@ -1354,7 +1453,6 @@ static int adv7604_s_dv_timings(struct v4l2_subdev *sd, set_rgb_quantization_range(sd); - if (debug > 1) v4l2_print_dv_timings(sd->name, "adv7604_s_dv_timings: ", timings, true); @@ -1374,30 +1472,24 @@ static void enable_input(struct v4l2_subdev *sd) { struct adv7604_state *state = to_state(sd); - switch (state->mode) { - case ADV7604_MODE_COMP: - case ADV7604_MODE_GR: - /* enable */ + if (is_analog_input(sd)) { io_write(sd, 0x15, 0xb0); /* Disable Tristate of Pins (no audio) */ - break; - case ADV7604_MODE_HDMI: - /* enable */ - hdmi_write(sd, 0x1a, 0x0a); /* Unmute audio */ + } else if (is_digital_input(sd)) { + hdmi_write_and_or(sd, 0x00, 0xfc, state->selected_input); hdmi_write(sd, 0x01, 0x00); /* Enable HDMI clock terminators */ io_write(sd, 0x15, 0xa0); /* Disable Tristate of Pins */ - break; - default: - v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n", - __func__, state->mode); - break; + hdmi_write_and_or(sd, 0x1a, 0xef, 0x00); /* Unmute audio */ + } else { + v4l2_dbg(2, debug, sd, "%s: Unknown port %d selected\n", + __func__, state->selected_input); } } static void disable_input(struct v4l2_subdev *sd) { - /* disable */ + hdmi_write_and_or(sd, 0x1a, 0xef, 0x10); /* Mute audio */ + msleep(16); /* 512 samples with >= 32 kHz sample rate [REF_03, c. 7.16.10] */ io_write(sd, 0x15, 0xbe); /* Tristate all outputs from video core */ - hdmi_write(sd, 0x1a, 0x1a); /* Mute audio */ hdmi_write(sd, 0x01, 0x78); /* Disable HDMI clock terminators */ } @@ -1405,9 +1497,7 @@ static void select_input(struct v4l2_subdev *sd) { struct adv7604_state *state = to_state(sd); - switch (state->mode) { - case ADV7604_MODE_COMP: - case ADV7604_MODE_GR: + if (is_analog_input(sd)) { /* reset ADI recommended settings for HDMI: */ /* "ADV7604 Register Settings Recommendations (rev. 2.5, June 2010)" p. 4. */ hdmi_write(sd, 0x0d, 0x04); /* HDMI filter optimization */ @@ -1433,9 +1523,9 @@ static void select_input(struct v4l2_subdev *sd) cp_write(sd, 0x3e, 0x04); /* CP core pre-gain control */ cp_write(sd, 0xc3, 0x39); /* CP coast control. Graphics mode */ cp_write(sd, 0x40, 0x5c); /* CP core pre-gain control. Graphics mode */ - break; + } else if (is_digital_input(sd)) { + hdmi_write(sd, 0x00, state->selected_input & 0x03); - case ADV7604_MODE_HDMI: /* set ADI recommended settings for HDMI: */ /* "ADV7604 Register Settings Recommendations (rev. 2.5, June 2010)" p. 4. */ hdmi_write(sd, 0x0d, 0x84); /* HDMI filter optimization */ @@ -1461,12 +1551,9 @@ static void select_input(struct v4l2_subdev *sd) cp_write(sd, 0x3e, 0x00); /* CP core pre-gain control */ cp_write(sd, 0xc3, 0x39); /* CP coast control. Graphics mode */ cp_write(sd, 0x40, 0x80); /* CP core pre-gain control. Graphics mode */ - - break; - default: - v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n", - __func__, state->mode); - break; + } else { + v4l2_dbg(2, debug, sd, "%s: Unknown port %d selected\n", + __func__, state->selected_input); } } @@ -1475,9 +1562,13 @@ static int adv7604_s_routing(struct v4l2_subdev *sd, { struct adv7604_state *state = to_state(sd); - v4l2_dbg(2, debug, sd, "%s: input %d", __func__, input); + v4l2_dbg(2, debug, sd, "%s: input %d, selected input %d", + __func__, input, state->selected_input); + + if (input == state->selected_input) + return 0; - state->mode = input; + state->selected_input = input; disable_input(sd); @@ -1516,36 +1607,47 @@ static int adv7604_g_mbus_fmt(struct v4l2_subdev *sd, static int adv7604_isr(struct v4l2_subdev *sd, u32 status, bool *handled) { - struct adv7604_state *state = to_state(sd); - u8 fmt_change, fmt_change_digital, tx_5v; - u32 input_status; + const u8 irq_reg_0x43 = io_read(sd, 0x43); + const u8 irq_reg_0x6b = io_read(sd, 0x6b); + const u8 irq_reg_0x70 = io_read(sd, 0x70); + u8 fmt_change_digital; + u8 fmt_change; + u8 tx_5v; + + if (irq_reg_0x43) + io_write(sd, 0x44, irq_reg_0x43); + if (irq_reg_0x70) + io_write(sd, 0x71, irq_reg_0x70); + if (irq_reg_0x6b) + io_write(sd, 0x6c, irq_reg_0x6b); + + v4l2_dbg(2, debug, sd, "%s: ", __func__); /* format change */ - fmt_change = io_read(sd, 0x43) & 0x98; - if (fmt_change) - io_write(sd, 0x44, fmt_change); - fmt_change_digital = DIGITAL_INPUT ? (io_read(sd, 0x6b) & 0xc0) : 0; - if (fmt_change_digital) - io_write(sd, 0x6c, fmt_change_digital); + fmt_change = irq_reg_0x43 & 0x98; + fmt_change_digital = is_digital_input(sd) ? (irq_reg_0x6b & 0xc0) : 0; + if (fmt_change || fmt_change_digital) { v4l2_dbg(1, debug, sd, "%s: fmt_change = 0x%x, fmt_change_digital = 0x%x\n", __func__, fmt_change, fmt_change_digital); - adv7604_g_input_status(sd, &input_status); - if (input_status != state->prev_input_status) { - v4l2_dbg(1, debug, sd, - "%s: input_status = 0x%x, prev_input_status = 0x%x\n", - __func__, input_status, state->prev_input_status); - state->prev_input_status = input_status; - v4l2_subdev_notify(sd, ADV7604_FMT_CHANGE, NULL); - } + v4l2_subdev_notify(sd, ADV7604_FMT_CHANGE, NULL); if (handled) *handled = true; } + /* HDMI/DVI mode */ + if (irq_reg_0x6b & 0x01) { + v4l2_dbg(1, debug, sd, "%s: irq %s mode\n", __func__, + (io_read(sd, 0x6a) & 0x01) ? "HDMI" : "DVI"); + set_rgb_quantization_range(sd); + if (handled) + *handled = true; + } + /* tx 5v detect */ - tx_5v = io_read(sd, 0x70) & 0x10; + tx_5v = io_read(sd, 0x70) & 0x1e; if (tx_5v) { v4l2_dbg(1, debug, sd, "%s: tx_5v: 0x%x\n", __func__, tx_5v); io_write(sd, 0x71, tx_5v); @@ -1559,55 +1661,178 @@ static int adv7604_isr(struct v4l2_subdev *sd, u32 status, bool *handled) static int adv7604_get_edid(struct v4l2_subdev *sd, struct v4l2_subdev_edid *edid) { struct adv7604_state *state = to_state(sd); + u8 *data = NULL; - if (edid->pad != 0) + if (edid->pad > ADV7604_EDID_PORT_D) return -EINVAL; if (edid->blocks == 0) return -EINVAL; - if (edid->start_block >= state->edid_blocks) + if (edid->blocks > 2) + return -EINVAL; + if (edid->start_block > 1) return -EINVAL; - if (edid->start_block + edid->blocks > state->edid_blocks) - edid->blocks = state->edid_blocks - edid->start_block; + if (edid->start_block == 1) + edid->blocks = 1; if (!edid->edid) return -EINVAL; - memcpy(edid->edid + edid->start_block * 128, - state->edid + edid->start_block * 128, + + if (edid->blocks > state->edid.blocks) + edid->blocks = state->edid.blocks; + + switch (edid->pad) { + case ADV7604_EDID_PORT_A: + case ADV7604_EDID_PORT_B: + case ADV7604_EDID_PORT_C: + case ADV7604_EDID_PORT_D: + if (state->edid.present & (1 << edid->pad)) + data = state->edid.edid; + break; + default: + return -EINVAL; + break; + } + if (!data) + return -ENODATA; + + memcpy(edid->edid, + data + edid->start_block * 128, edid->blocks * 128); return 0; } +static int get_edid_spa_location(const u8 *edid) +{ + u8 d; + + if ((edid[0x7e] != 1) || + (edid[0x80] != 0x02) || + (edid[0x81] != 0x03)) { + return -1; + } + + /* search Vendor Specific Data Block (tag 3) */ + d = edid[0x82] & 0x7f; + if (d > 4) { + int i = 0x84; + int end = 0x80 + d; + + do { + u8 tag = edid[i] >> 5; + u8 len = edid[i] & 0x1f; + + if ((tag == 3) && (len >= 5)) + return i + 4; + i += len + 1; + } while (i < end); + } + return -1; +} + static int adv7604_set_edid(struct v4l2_subdev *sd, struct v4l2_subdev_edid *edid) { struct adv7604_state *state = to_state(sd); + int spa_loc; + int tmp = 0; int err; + int i; - if (edid->pad != 0) + if (edid->pad > ADV7604_EDID_PORT_D) return -EINVAL; if (edid->start_block != 0) return -EINVAL; if (edid->blocks == 0) { - /* Pull down the hotplug pin */ - v4l2_subdev_notify(sd, ADV7604_HOTPLUG, (void *)0); - /* Disables I2C access to internal EDID ram from DDC port */ - rep_write_and_or(sd, 0x77, 0xf0, 0x0); - state->edid_blocks = 0; + /* Disable hotplug and I2C access to EDID RAM from DDC port */ + state->edid.present &= ~(1 << edid->pad); + v4l2_subdev_notify(sd, ADV7604_HOTPLUG, (void *)&state->edid.present); + rep_write_and_or(sd, 0x77, 0xf0, state->edid.present); + /* Fall back to a 16:9 aspect ratio */ state->aspect_ratio.numerator = 16; state->aspect_ratio.denominator = 9; + + if (!state->edid.present) + state->edid.blocks = 0; + + v4l2_dbg(2, debug, sd, "%s: clear EDID pad %d, edid.present = 0x%x\n", + __func__, edid->pad, state->edid.present); return 0; } - if (edid->blocks > 2) + if (edid->blocks > 2) { + edid->blocks = 2; return -E2BIG; + } if (!edid->edid) return -EINVAL; - memcpy(state->edid, edid->edid, 128 * edid->blocks); - state->edid_blocks = edid->blocks; + + v4l2_dbg(2, debug, sd, "%s: write EDID pad %d, edid.present = 0x%x\n", + __func__, edid->pad, state->edid.present); + + /* Disable hotplug and I2C access to EDID RAM from DDC port */ + cancel_delayed_work_sync(&state->delayed_work_enable_hotplug); + v4l2_subdev_notify(sd, ADV7604_HOTPLUG, (void *)&tmp); + rep_write_and_or(sd, 0x77, 0xf0, 0x00); + + spa_loc = get_edid_spa_location(edid->edid); + if (spa_loc < 0) + spa_loc = 0xc0; /* Default value [REF_02, p. 116] */ + + switch (edid->pad) { + case ADV7604_EDID_PORT_A: + state->spa_port_a[0] = edid->edid[spa_loc]; + state->spa_port_a[1] = edid->edid[spa_loc + 1]; + break; + case ADV7604_EDID_PORT_B: + rep_write(sd, 0x70, edid->edid[spa_loc]); + rep_write(sd, 0x71, edid->edid[spa_loc + 1]); + break; + case ADV7604_EDID_PORT_C: + rep_write(sd, 0x72, edid->edid[spa_loc]); + rep_write(sd, 0x73, edid->edid[spa_loc + 1]); + break; + case ADV7604_EDID_PORT_D: + rep_write(sd, 0x74, edid->edid[spa_loc]); + rep_write(sd, 0x75, edid->edid[spa_loc + 1]); + break; + default: + return -EINVAL; + } + rep_write(sd, 0x76, spa_loc & 0xff); + rep_write_and_or(sd, 0x77, 0xbf, (spa_loc >> 2) & 0x40); + + edid->edid[spa_loc] = state->spa_port_a[0]; + edid->edid[spa_loc + 1] = state->spa_port_a[1]; + + memcpy(state->edid.edid, edid->edid, 128 * edid->blocks); + state->edid.blocks = edid->blocks; state->aspect_ratio = v4l2_calc_aspect_ratio(edid->edid[0x15], edid->edid[0x16]); - err = edid_write_block(sd, 128 * edid->blocks, state->edid); - if (err < 0) - v4l2_err(sd, "error %d writing edid\n", err); - return err; + state->edid.present |= 1 << edid->pad; + + err = edid_write_block(sd, 128 * edid->blocks, state->edid.edid); + if (err < 0) { + v4l2_err(sd, "error %d writing edid pad %d\n", err, edid->pad); + return err; + } + + /* adv7604 calculates the checksums and enables I2C access to internal + EDID RAM from DDC port. */ + rep_write_and_or(sd, 0x77, 0xf0, state->edid.present); + + for (i = 0; i < 1000; i++) { + if (rep_read(sd, 0x7d) & state->edid.present) + break; + mdelay(1); + } + if (i == 1000) { + v4l2_err(sd, "error enabling edid (0x%x)\n", state->edid.present); + return -EIO; + } + + + /* enable hotplug after 100 ms */ + queue_delayed_work(state->work_queues, + &state->delayed_work_enable_hotplug, HZ / 10); + return 0; } /*********** avi info frame CEA-861-E **************/ @@ -1670,7 +1895,7 @@ static int adv7604_log_status(struct v4l2_subdev *sd) char *input_color_space_txt[16] = { "RGB limited range (16-235)", "RGB full range (0-255)", "YCbCr Bt.601 (16-235)", "YCbCr Bt.709 (16-235)", - "XvYCC Bt.601", "XvYCC Bt.709", + "xvYCC Bt.601", "xvYCC Bt.709", "YCbCr Bt.601 (0-255)", "YCbCr Bt.709 (0-255)", "invalid", "invalid", "invalid", "invalid", "invalid", "invalid", "invalid", "automatic" @@ -1689,16 +1914,20 @@ static int adv7604_log_status(struct v4l2_subdev *sd) v4l2_info(sd, "-----Chip status-----\n"); v4l2_info(sd, "Chip power: %s\n", no_power(sd) ? "off" : "on"); - v4l2_info(sd, "Connector type: %s\n", state->connector_hdmi ? - "HDMI" : (DIGITAL_INPUT ? "DVI-D" : "DVI-A")); - v4l2_info(sd, "EDID: %s\n", ((rep_read(sd, 0x7d) & 0x01) && - (rep_read(sd, 0x77) & 0x01)) ? "enabled" : "disabled "); + v4l2_info(sd, "EDID enabled port A: %s, B: %s, C: %s, D: %s\n", + ((rep_read(sd, 0x7d) & 0x01) ? "Yes" : "No"), + ((rep_read(sd, 0x7d) & 0x02) ? "Yes" : "No"), + ((rep_read(sd, 0x7d) & 0x04) ? "Yes" : "No"), + ((rep_read(sd, 0x7d) & 0x08) ? "Yes" : "No")); v4l2_info(sd, "CEC: %s\n", !!(cec_read(sd, 0x2a) & 0x01) ? "enabled" : "disabled"); v4l2_info(sd, "-----Signal status-----\n"); - v4l2_info(sd, "Cable detected (+5V power): %s\n", - (io_read(sd, 0x6f) & 0x10) ? "true" : "false"); + v4l2_info(sd, "Cable detected (+5V power) port A: %s, B: %s, C: %s, D: %s\n", + ((io_read(sd, 0x6f) & 0x10) ? "Yes" : "No"), + ((io_read(sd, 0x6f) & 0x08) ? "Yes" : "No"), + ((io_read(sd, 0x6f) & 0x04) ? "Yes" : "No"), + ((io_read(sd, 0x6f) & 0x02) ? "Yes" : "No")); v4l2_info(sd, "TMDS signal detected: %s\n", no_signal_tmds(sd) ? "false" : "true"); v4l2_info(sd, "TMDS signal locked: %s\n", @@ -1744,11 +1973,14 @@ static int adv7604_log_status(struct v4l2_subdev *sd) v4l2_info(sd, "Color space conversion: %s\n", csc_coeff_sel_rb[cp_read(sd, 0xfc) >> 4]); - if (!DIGITAL_INPUT) + if (!is_digital_input(sd)) return 0; v4l2_info(sd, "-----%s status-----\n", is_hdmi(sd) ? "HDMI" : "DVI-D"); - v4l2_info(sd, "HDCP encrypted content: %s\n", (hdmi_read(sd, 0x05) & 0x40) ? "true" : "false"); + v4l2_info(sd, "Digital video port selected: %c\n", + (hdmi_read(sd, 0x00) & 0x03) + 'A'); + v4l2_info(sd, "HDCP encrypted content: %s\n", + (hdmi_read(sd, 0x05) & 0x40) ? "true" : "false"); v4l2_info(sd, "HDCP keys read: %s%s\n", (hdmi_read(sd, 0x04) & 0x20) ? "yes" : "no", (hdmi_read(sd, 0x04) & 0x10) ? "ERROR" : ""); @@ -1894,10 +2126,16 @@ static int adv7604_core_init(struct v4l2_subdev *sd) pdata->replicate_av_codes << 1 | pdata->invert_cbcr << 0); - /* TODO from platform data */ cp_write(sd, 0x69, 0x30); /* Enable CP CSC */ - io_write(sd, 0x06, 0xa6); /* positive VS and HS */ - io_write(sd, 0x14, 0x7f); /* Drive strength adjusted to max */ + + /* VS, HS polarities */ + io_write(sd, 0x06, 0xa0 | pdata->inv_vs_pol << 2 | pdata->inv_hs_pol << 1); + + /* Adjust drive strength */ + io_write(sd, 0x14, 0x40 | pdata->dr_str_data << 4 | + pdata->dr_str_clk << 2 | + pdata->dr_str_sync); + cp_write(sd, 0xba, (pdata->hdmi_free_run_mode << 1) | 0x01); /* HDMI free run */ cp_write(sd, 0xf3, 0xdc); /* Low threshold to enter/exit free run mode */ cp_write(sd, 0xf9, 0x23); /* STDI ch. 1 - LCVS change threshold - @@ -1907,6 +2145,11 @@ static int adv7604_core_init(struct v4l2_subdev *sd) cp_write(sd, 0xc9, 0x2d); /* use prim_mode and vid_std as free run resolution for digital formats */ + /* HDMI audio */ + hdmi_write_and_or(sd, 0x15, 0xfc, 0x03); /* Mute on FIFO over-/underflow [REF_01, c. 1.2.18] */ + hdmi_write_and_or(sd, 0x1a, 0xf1, 0x08); /* Wait 1 s before unmute */ + hdmi_write_and_or(sd, 0x68, 0xf9, 0x06); /* FIFO reset on over-/underflow [REF_01, c. 1.2.19] */ + /* TODO from platform data */ afe_write(sd, 0xb5, 0x01); /* Setting MCLK to 256Fs */ @@ -1917,8 +2160,8 @@ static int adv7604_core_init(struct v4l2_subdev *sd) io_write(sd, 0x40, 0xc2); /* Configure INT1 */ io_write(sd, 0x41, 0xd7); /* STDI irq for any change, disable INT2 */ io_write(sd, 0x46, 0x98); /* Enable SSPD, STDI and CP unlocked interrupts */ - io_write(sd, 0x6e, 0xc0); /* Enable V_LOCKED and DE_REGEN_LCK interrupts */ - io_write(sd, 0x73, 0x10); /* Enable CABLE_DET_A_ST (+5v) interrupt */ + io_write(sd, 0x6e, 0xc1); /* Enable V_LOCKED, DE_REGEN_LCK, HDMI_MODE interrupts */ + io_write(sd, 0x73, 0x1e); /* Enable CABLE_DET_A_ST (+5v) interrupts */ return v4l2_ctrl_handler_setup(sd->ctrl_handler); } @@ -1964,6 +2207,8 @@ static struct i2c_client *adv7604_dummy_client(struct v4l2_subdev *sd, static int adv7604_probe(struct i2c_client *client, const struct i2c_device_id *id) { + static const struct v4l2_dv_timings cea640x480 = + V4L2_DV_BT_CEA_640X480P59_94; struct adv7604_state *state; struct adv7604_platform_data *pdata = client->dev.platform_data; struct v4l2_ctrl_handler *hdl; @@ -1984,19 +2229,19 @@ static int adv7604_probe(struct i2c_client *client, /* initialize variables */ state->restart_stdi_once = true; - state->prev_input_status = ~0; + state->selected_input = ~0; /* platform data */ if (!pdata) { v4l_err(client, "No platform data!\n"); return -ENODEV; } - memcpy(&state->pdata, pdata, sizeof(state->pdata)); + state->pdata = *pdata; + state->timings = cea640x480; sd = &state->sd; v4l2_i2c_subdev_init(sd, client, &adv7604_ops); sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; - state->connector_hdmi = pdata->connector_hdmi; /* i2c access to adv7604? */ if (adv_smbus_read_byte_data_check(client, 0xfb, false) != 0x68) { @@ -2020,7 +2265,7 @@ static int adv7604_probe(struct i2c_client *client, /* private controls */ state->detect_tx_5v_ctrl = v4l2_ctrl_new_std(hdl, NULL, - V4L2_CID_DV_RX_POWER_PRESENT, 0, 1, 0, 0); + V4L2_CID_DV_RX_POWER_PRESENT, 0, 0x0f, 0, 0); state->rgb_quantization_range_ctrl = v4l2_ctrl_new_std_menu(hdl, &adv7604_ctrl_ops, V4L2_CID_DV_RX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL, |