| /* |
| * adv7842 - Analog Devices ADV7842 video decoder driver |
| * |
| * Copyright 2013 Cisco Systems, Inc. and/or its affiliates. All rights reserved. |
| * |
| * This program is free software; you may redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * 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 AUTHORS OR COPYRIGHT HOLDERS |
| * 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. |
| * |
| */ |
| |
| /* |
| * References (c = chapter, p = page): |
| * REF_01 - Analog devices, ADV7842, |
| * Register Settings Recommendations, Rev. 1.9, April 2011 |
| * REF_02 - Analog devices, Software User Guide, UG-206, |
| * ADV7842 I2C Register Maps, Rev. 0, November 2010 |
| * REF_03 - Analog devices, Hardware User Guide, UG-214, |
| * ADV7842 Fast Switching 2:1 HDMI 1.4 Receiver with 3D-Comb |
| * Decoder and Digitizer , Rev. 0, January 2011 |
| */ |
| |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/slab.h> |
| #include <linux/i2c.h> |
| #include <linux/delay.h> |
| #include <linux/videodev2.h> |
| #include <linux/workqueue.h> |
| #include <linux/v4l2-dv-timings.h> |
| #include <linux/hdmi.h> |
| #include <media/v4l2-device.h> |
| #include <media/v4l2-event.h> |
| #include <media/v4l2-ctrls.h> |
| #include <media/v4l2-dv-timings.h> |
| #include <media/i2c/adv7842.h> |
| |
| static int debug; |
| module_param(debug, int, 0644); |
| MODULE_PARM_DESC(debug, "debug level (0-2)"); |
| |
| MODULE_DESCRIPTION("Analog Devices ADV7842 video decoder driver"); |
| MODULE_AUTHOR("Hans Verkuil <hans.verkuil@cisco.com>"); |
| MODULE_AUTHOR("Martin Bugge <marbugge@cisco.com>"); |
| MODULE_LICENSE("GPL"); |
| |
| /* ADV7842 system clock frequency */ |
| #define ADV7842_fsc (28636360) |
| |
| #define ADV7842_RGB_OUT (1 << 1) |
| |
| #define ADV7842_OP_FORMAT_SEL_8BIT (0 << 0) |
| #define ADV7842_OP_FORMAT_SEL_10BIT (1 << 0) |
| #define ADV7842_OP_FORMAT_SEL_12BIT (2 << 0) |
| |
| #define ADV7842_OP_MODE_SEL_SDR_422 (0 << 5) |
| #define ADV7842_OP_MODE_SEL_DDR_422 (1 << 5) |
| #define ADV7842_OP_MODE_SEL_SDR_444 (2 << 5) |
| #define ADV7842_OP_MODE_SEL_DDR_444 (3 << 5) |
| #define ADV7842_OP_MODE_SEL_SDR_422_2X (4 << 5) |
| #define ADV7842_OP_MODE_SEL_ADI_CM (5 << 5) |
| |
| #define ADV7842_OP_CH_SEL_GBR (0 << 5) |
| #define ADV7842_OP_CH_SEL_GRB (1 << 5) |
| #define ADV7842_OP_CH_SEL_BGR (2 << 5) |
| #define ADV7842_OP_CH_SEL_RGB (3 << 5) |
| #define ADV7842_OP_CH_SEL_BRG (4 << 5) |
| #define ADV7842_OP_CH_SEL_RBG (5 << 5) |
| |
| #define ADV7842_OP_SWAP_CB_CR (1 << 0) |
| |
| /* |
| ********************************************************************** |
| * |
| * Arrays with configuration parameters for the ADV7842 |
| * |
| ********************************************************************** |
| */ |
| |
| struct adv7842_format_info { |
| u32 code; |
| u8 op_ch_sel; |
| bool rgb_out; |
| bool swap_cb_cr; |
| u8 op_format_sel; |
| }; |
| |
| struct adv7842_state { |
| struct adv7842_platform_data pdata; |
| struct v4l2_subdev sd; |
| struct media_pad pad; |
| struct v4l2_ctrl_handler hdl; |
| enum adv7842_mode mode; |
| struct v4l2_dv_timings timings; |
| enum adv7842_vid_std_select vid_std_select; |
| |
| const struct adv7842_format_info *format; |
| |
| v4l2_std_id norm; |
| struct { |
| u8 edid[256]; |
| u32 present; |
| } hdmi_edid; |
| struct { |
| u8 edid[256]; |
| u32 present; |
| } vga_edid; |
| struct v4l2_fract aspect_ratio; |
| u32 rgb_quantization_range; |
| bool is_cea_format; |
| struct workqueue_struct *work_queues; |
| struct delayed_work delayed_work_enable_hotplug; |
| bool restart_stdi_once; |
| bool hdmi_port_a; |
| |
| /* i2c clients */ |
| struct i2c_client *i2c_sdp_io; |
| struct i2c_client *i2c_sdp; |
| struct i2c_client *i2c_cp; |
| struct i2c_client *i2c_vdp; |
| struct i2c_client *i2c_afe; |
| struct i2c_client *i2c_hdmi; |
| struct i2c_client *i2c_repeater; |
| struct i2c_client *i2c_edid; |
| struct i2c_client *i2c_infoframe; |
| struct i2c_client *i2c_cec; |
| struct i2c_client *i2c_avlink; |
| |
| /* controls */ |
| struct v4l2_ctrl *detect_tx_5v_ctrl; |
| struct v4l2_ctrl *analog_sampling_phase_ctrl; |
| struct v4l2_ctrl *free_run_color_ctrl_manual; |
| struct v4l2_ctrl *free_run_color_ctrl; |
| struct v4l2_ctrl *rgb_quantization_range_ctrl; |
| }; |
| |
| /* Unsupported timings. This device cannot support 720p30. */ |
| static const struct v4l2_dv_timings adv7842_timings_exceptions[] = { |
| V4L2_DV_BT_CEA_1280X720P30, |
| { } |
| }; |
| |
| static bool adv7842_check_dv_timings(const struct v4l2_dv_timings *t, void *hdl) |
| { |
| int i; |
| |
| for (i = 0; adv7842_timings_exceptions[i].bt.width; i++) |
| if (v4l2_match_dv_timings(t, adv7842_timings_exceptions + i, 0, false)) |
| return false; |
| return true; |
| } |
| |
| struct adv7842_video_standards { |
| struct v4l2_dv_timings timings; |
| u8 vid_std; |
| u8 v_freq; |
| }; |
| |
| /* sorted by number of lines */ |
| static const struct adv7842_video_standards adv7842_prim_mode_comp[] = { |
| /* { V4L2_DV_BT_CEA_720X480P59_94, 0x0a, 0x00 }, TODO flickering */ |
| { V4L2_DV_BT_CEA_720X576P50, 0x0b, 0x00 }, |
| { V4L2_DV_BT_CEA_1280X720P50, 0x19, 0x01 }, |
| { V4L2_DV_BT_CEA_1280X720P60, 0x19, 0x00 }, |
| { V4L2_DV_BT_CEA_1920X1080P24, 0x1e, 0x04 }, |
| { V4L2_DV_BT_CEA_1920X1080P25, 0x1e, 0x03 }, |
| { V4L2_DV_BT_CEA_1920X1080P30, 0x1e, 0x02 }, |
| { V4L2_DV_BT_CEA_1920X1080P50, 0x1e, 0x01 }, |
| { V4L2_DV_BT_CEA_1920X1080P60, 0x1e, 0x00 }, |
| /* TODO add 1920x1080P60_RB (CVT timing) */ |
| { }, |
| }; |
| |
| /* sorted by number of lines */ |
| static const struct adv7842_video_standards adv7842_prim_mode_gr[] = { |
| { V4L2_DV_BT_DMT_640X480P60, 0x08, 0x00 }, |
| { V4L2_DV_BT_DMT_640X480P72, 0x09, 0x00 }, |
| { V4L2_DV_BT_DMT_640X480P75, 0x0a, 0x00 }, |
| { V4L2_DV_BT_DMT_640X480P85, 0x0b, 0x00 }, |
| { V4L2_DV_BT_DMT_800X600P56, 0x00, 0x00 }, |
| { V4L2_DV_BT_DMT_800X600P60, 0x01, 0x00 }, |
| { V4L2_DV_BT_DMT_800X600P72, 0x02, 0x00 }, |
| { V4L2_DV_BT_DMT_800X600P75, 0x03, 0x00 }, |
| { V4L2_DV_BT_DMT_800X600P85, 0x04, 0x00 }, |
| { V4L2_DV_BT_DMT_1024X768P60, 0x0c, 0x00 }, |
| { V4L2_DV_BT_DMT_1024X768P70, 0x0d, 0x00 }, |
| { V4L2_DV_BT_DMT_1024X768P75, 0x0e, 0x00 }, |
| { V4L2_DV_BT_DMT_1024X768P85, 0x0f, 0x00 }, |
| { V4L2_DV_BT_DMT_1280X1024P60, 0x05, 0x00 }, |
| { V4L2_DV_BT_DMT_1280X1024P75, 0x06, 0x00 }, |
| { V4L2_DV_BT_DMT_1360X768P60, 0x12, 0x00 }, |
| { V4L2_DV_BT_DMT_1366X768P60, 0x13, 0x00 }, |
| { V4L2_DV_BT_DMT_1400X1050P60, 0x14, 0x00 }, |
| { V4L2_DV_BT_DMT_1400X1050P75, 0x15, 0x00 }, |
| { V4L2_DV_BT_DMT_1600X1200P60, 0x16, 0x00 }, /* TODO not tested */ |
| /* TODO add 1600X1200P60_RB (not a DMT timing) */ |
| { V4L2_DV_BT_DMT_1680X1050P60, 0x18, 0x00 }, |
| { V4L2_DV_BT_DMT_1920X1200P60_RB, 0x19, 0x00 }, /* TODO not tested */ |
| { }, |
| }; |
| |
| /* sorted by number of lines */ |
| static const struct adv7842_video_standards adv7842_prim_mode_hdmi_comp[] = { |
| { V4L2_DV_BT_CEA_720X480P59_94, 0x0a, 0x00 }, |
| { V4L2_DV_BT_CEA_720X576P50, 0x0b, 0x00 }, |
| { V4L2_DV_BT_CEA_1280X720P50, 0x13, 0x01 }, |
| { V4L2_DV_BT_CEA_1280X720P60, 0x13, 0x00 }, |
| { V4L2_DV_BT_CEA_1920X1080P24, 0x1e, 0x04 }, |
| { V4L2_DV_BT_CEA_1920X1080P25, 0x1e, 0x03 }, |
| { V4L2_DV_BT_CEA_1920X1080P30, 0x1e, 0x02 }, |
| { V4L2_DV_BT_CEA_1920X1080P50, 0x1e, 0x01 }, |
| { V4L2_DV_BT_CEA_1920X1080P60, 0x1e, 0x00 }, |
| { }, |
| }; |
| |
| /* sorted by number of lines */ |
| static const struct adv7842_video_standards adv7842_prim_mode_hdmi_gr[] = { |
| { V4L2_DV_BT_DMT_640X480P60, 0x08, 0x00 }, |
| { V4L2_DV_BT_DMT_640X480P72, 0x09, 0x00 }, |
| { V4L2_DV_BT_DMT_640X480P75, 0x0a, 0x00 }, |
| { V4L2_DV_BT_DMT_640X480P85, 0x0b, 0x00 }, |
| { V4L2_DV_BT_DMT_800X600P56, 0x00, 0x00 }, |
| { V4L2_DV_BT_DMT_800X600P60, 0x01, 0x00 }, |
| { V4L2_DV_BT_DMT_800X600P72, 0x02, 0x00 }, |
| { V4L2_DV_BT_DMT_800X600P75, 0x03, 0x00 }, |
| { V4L2_DV_BT_DMT_800X600P85, 0x04, 0x00 }, |
| { V4L2_DV_BT_DMT_1024X768P60, 0x0c, 0x00 }, |
| { V4L2_DV_BT_DMT_1024X768P70, 0x0d, 0x00 }, |
| { V4L2_DV_BT_DMT_1024X768P75, 0x0e, 0x00 }, |
| { V4L2_DV_BT_DMT_1024X768P85, 0x0f, 0x00 }, |
| { V4L2_DV_BT_DMT_1280X1024P60, 0x05, 0x00 }, |
| { V4L2_DV_BT_DMT_1280X1024P75, 0x06, 0x00 }, |
| { }, |
| }; |
| |
| static const struct v4l2_event adv7842_ev_fmt = { |
| .type = V4L2_EVENT_SOURCE_CHANGE, |
| .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION, |
| }; |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static inline struct adv7842_state *to_state(struct v4l2_subdev *sd) |
| { |
| return container_of(sd, struct adv7842_state, sd); |
| } |
| |
| static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) |
| { |
| return &container_of(ctrl->handler, struct adv7842_state, hdl)->sd; |
| } |
| |
| static inline unsigned hblanking(const struct v4l2_bt_timings *t) |
| { |
| return V4L2_DV_BT_BLANKING_WIDTH(t); |
| } |
| |
| static inline unsigned htotal(const struct v4l2_bt_timings *t) |
| { |
| return V4L2_DV_BT_FRAME_WIDTH(t); |
| } |
| |
| static inline unsigned vblanking(const struct v4l2_bt_timings *t) |
| { |
| return V4L2_DV_BT_BLANKING_HEIGHT(t); |
| } |
| |
| static inline unsigned vtotal(const struct v4l2_bt_timings *t) |
| { |
| return V4L2_DV_BT_FRAME_HEIGHT(t); |
| } |
| |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static s32 adv_smbus_read_byte_data_check(struct i2c_client *client, |
| u8 command, bool check) |
| { |
| union i2c_smbus_data data; |
| |
| if (!i2c_smbus_xfer(client->adapter, client->addr, client->flags, |
| I2C_SMBUS_READ, command, |
| I2C_SMBUS_BYTE_DATA, &data)) |
| return data.byte; |
| if (check) |
| v4l_err(client, "error reading %02x, %02x\n", |
| client->addr, command); |
| return -EIO; |
| } |
| |
| static s32 adv_smbus_read_byte_data(struct i2c_client *client, u8 command) |
| { |
| int i; |
| |
| for (i = 0; i < 3; i++) { |
| int ret = adv_smbus_read_byte_data_check(client, command, true); |
| |
| if (ret >= 0) { |
| if (i) |
| v4l_err(client, "read ok after %d retries\n", i); |
| return ret; |
| } |
| } |
| v4l_err(client, "read failed\n"); |
| return -EIO; |
| } |
| |
| static s32 adv_smbus_write_byte_data(struct i2c_client *client, |
| u8 command, u8 value) |
| { |
| union i2c_smbus_data data; |
| int err; |
| int i; |
| |
| data.byte = value; |
| for (i = 0; i < 3; i++) { |
| err = i2c_smbus_xfer(client->adapter, client->addr, |
| client->flags, |
| I2C_SMBUS_WRITE, command, |
| I2C_SMBUS_BYTE_DATA, &data); |
| if (!err) |
| break; |
| } |
| if (err < 0) |
| v4l_err(client, "error writing %02x, %02x, %02x\n", |
| client->addr, command, value); |
| return err; |
| } |
| |
| static void adv_smbus_write_byte_no_check(struct i2c_client *client, |
| u8 command, u8 value) |
| { |
| union i2c_smbus_data data; |
| data.byte = value; |
| |
| i2c_smbus_xfer(client->adapter, client->addr, |
| client->flags, |
| I2C_SMBUS_WRITE, command, |
| I2C_SMBUS_BYTE_DATA, &data); |
| } |
| |
| static s32 adv_smbus_write_i2c_block_data(struct i2c_client *client, |
| u8 command, unsigned length, const u8 *values) |
| { |
| union i2c_smbus_data data; |
| |
| if (length > I2C_SMBUS_BLOCK_MAX) |
| length = I2C_SMBUS_BLOCK_MAX; |
| data.block[0] = length; |
| memcpy(data.block + 1, values, length); |
| return i2c_smbus_xfer(client->adapter, client->addr, client->flags, |
| I2C_SMBUS_WRITE, command, |
| I2C_SMBUS_I2C_BLOCK_DATA, &data); |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static inline int io_read(struct v4l2_subdev *sd, u8 reg) |
| { |
| struct i2c_client *client = v4l2_get_subdevdata(sd); |
| |
| return adv_smbus_read_byte_data(client, reg); |
| } |
| |
| static inline int io_write(struct v4l2_subdev *sd, u8 reg, u8 val) |
| { |
| struct i2c_client *client = v4l2_get_subdevdata(sd); |
| |
| return adv_smbus_write_byte_data(client, reg, val); |
| } |
| |
| static inline int io_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) |
| { |
| return io_write(sd, reg, (io_read(sd, reg) & mask) | val); |
| } |
| |
| static inline int io_write_clr_set(struct v4l2_subdev *sd, |
| u8 reg, u8 mask, u8 val) |
| { |
| return io_write(sd, reg, (io_read(sd, reg) & ~mask) | val); |
| } |
| |
| static inline int avlink_read(struct v4l2_subdev *sd, u8 reg) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_read_byte_data(state->i2c_avlink, reg); |
| } |
| |
| static inline int avlink_write(struct v4l2_subdev *sd, u8 reg, u8 val) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_write_byte_data(state->i2c_avlink, reg, val); |
| } |
| |
| static inline int cec_read(struct v4l2_subdev *sd, u8 reg) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_read_byte_data(state->i2c_cec, reg); |
| } |
| |
| static inline int cec_write(struct v4l2_subdev *sd, u8 reg, u8 val) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_write_byte_data(state->i2c_cec, reg, val); |
| } |
| |
| static inline int cec_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) |
| { |
| return cec_write(sd, reg, (cec_read(sd, reg) & mask) | val); |
| } |
| |
| static inline int infoframe_read(struct v4l2_subdev *sd, u8 reg) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_read_byte_data(state->i2c_infoframe, reg); |
| } |
| |
| static inline int infoframe_write(struct v4l2_subdev *sd, u8 reg, u8 val) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_write_byte_data(state->i2c_infoframe, reg, val); |
| } |
| |
| static inline int sdp_io_read(struct v4l2_subdev *sd, u8 reg) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_read_byte_data(state->i2c_sdp_io, reg); |
| } |
| |
| static inline int sdp_io_write(struct v4l2_subdev *sd, u8 reg, u8 val) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_write_byte_data(state->i2c_sdp_io, reg, val); |
| } |
| |
| static inline int sdp_io_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) |
| { |
| return sdp_io_write(sd, reg, (sdp_io_read(sd, reg) & mask) | val); |
| } |
| |
| static inline int sdp_read(struct v4l2_subdev *sd, u8 reg) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_read_byte_data(state->i2c_sdp, reg); |
| } |
| |
| static inline int sdp_write(struct v4l2_subdev *sd, u8 reg, u8 val) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_write_byte_data(state->i2c_sdp, reg, val); |
| } |
| |
| static inline int sdp_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) |
| { |
| return sdp_write(sd, reg, (sdp_read(sd, reg) & mask) | val); |
| } |
| |
| static inline int afe_read(struct v4l2_subdev *sd, u8 reg) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_read_byte_data(state->i2c_afe, reg); |
| } |
| |
| static inline int afe_write(struct v4l2_subdev *sd, u8 reg, u8 val) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_write_byte_data(state->i2c_afe, reg, val); |
| } |
| |
| static inline int afe_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) |
| { |
| return afe_write(sd, reg, (afe_read(sd, reg) & mask) | val); |
| } |
| |
| static inline int rep_read(struct v4l2_subdev *sd, u8 reg) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_read_byte_data(state->i2c_repeater, reg); |
| } |
| |
| static inline int rep_write(struct v4l2_subdev *sd, u8 reg, u8 val) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_write_byte_data(state->i2c_repeater, reg, val); |
| } |
| |
| static inline int rep_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) |
| { |
| return rep_write(sd, reg, (rep_read(sd, reg) & mask) | val); |
| } |
| |
| static inline int edid_read(struct v4l2_subdev *sd, u8 reg) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_read_byte_data(state->i2c_edid, reg); |
| } |
| |
| static inline int edid_write(struct v4l2_subdev *sd, u8 reg, u8 val) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_write_byte_data(state->i2c_edid, reg, val); |
| } |
| |
| static inline int hdmi_read(struct v4l2_subdev *sd, u8 reg) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_read_byte_data(state->i2c_hdmi, reg); |
| } |
| |
| static inline int hdmi_write(struct v4l2_subdev *sd, u8 reg, u8 val) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| 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 cp_read(struct v4l2_subdev *sd, u8 reg) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_read_byte_data(state->i2c_cp, reg); |
| } |
| |
| static inline int cp_write(struct v4l2_subdev *sd, u8 reg, u8 val) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_write_byte_data(state->i2c_cp, reg, val); |
| } |
| |
| static inline int cp_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) |
| { |
| return cp_write(sd, reg, (cp_read(sd, reg) & mask) | val); |
| } |
| |
| static inline int vdp_read(struct v4l2_subdev *sd, u8 reg) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_read_byte_data(state->i2c_vdp, reg); |
| } |
| |
| static inline int vdp_write(struct v4l2_subdev *sd, u8 reg, u8 val) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return adv_smbus_write_byte_data(state->i2c_vdp, reg, val); |
| } |
| |
| static void main_reset(struct v4l2_subdev *sd) |
| { |
| struct i2c_client *client = v4l2_get_subdevdata(sd); |
| |
| v4l2_dbg(1, debug, sd, "%s:\n", __func__); |
| |
| adv_smbus_write_byte_no_check(client, 0xff, 0x80); |
| |
| mdelay(5); |
| } |
| |
| /* ----------------------------------------------------------------------------- |
| * Format helpers |
| */ |
| |
| static const struct adv7842_format_info adv7842_formats[] = { |
| { MEDIA_BUS_FMT_RGB888_1X24, ADV7842_OP_CH_SEL_RGB, true, false, |
| ADV7842_OP_MODE_SEL_SDR_444 | ADV7842_OP_FORMAT_SEL_8BIT }, |
| { MEDIA_BUS_FMT_YUYV8_2X8, ADV7842_OP_CH_SEL_RGB, false, false, |
| ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_8BIT }, |
| { MEDIA_BUS_FMT_YVYU8_2X8, ADV7842_OP_CH_SEL_RGB, false, true, |
| ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_8BIT }, |
| { MEDIA_BUS_FMT_YUYV10_2X10, ADV7842_OP_CH_SEL_RGB, false, false, |
| ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_10BIT }, |
| { MEDIA_BUS_FMT_YVYU10_2X10, ADV7842_OP_CH_SEL_RGB, false, true, |
| ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_10BIT }, |
| { MEDIA_BUS_FMT_YUYV12_2X12, ADV7842_OP_CH_SEL_RGB, false, false, |
| ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_12BIT }, |
| { MEDIA_BUS_FMT_YVYU12_2X12, ADV7842_OP_CH_SEL_RGB, false, true, |
| ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_12BIT }, |
| { MEDIA_BUS_FMT_UYVY8_1X16, ADV7842_OP_CH_SEL_RBG, false, false, |
| ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT }, |
| { MEDIA_BUS_FMT_VYUY8_1X16, ADV7842_OP_CH_SEL_RBG, false, true, |
| ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT }, |
| { MEDIA_BUS_FMT_YUYV8_1X16, ADV7842_OP_CH_SEL_RGB, false, false, |
| ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT }, |
| { MEDIA_BUS_FMT_YVYU8_1X16, ADV7842_OP_CH_SEL_RGB, false, true, |
| ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT }, |
| { MEDIA_BUS_FMT_UYVY10_1X20, ADV7842_OP_CH_SEL_RBG, false, false, |
| ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT }, |
| { MEDIA_BUS_FMT_VYUY10_1X20, ADV7842_OP_CH_SEL_RBG, false, true, |
| ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT }, |
| { MEDIA_BUS_FMT_YUYV10_1X20, ADV7842_OP_CH_SEL_RGB, false, false, |
| ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT }, |
| { MEDIA_BUS_FMT_YVYU10_1X20, ADV7842_OP_CH_SEL_RGB, false, true, |
| ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT }, |
| { MEDIA_BUS_FMT_UYVY12_1X24, ADV7842_OP_CH_SEL_RBG, false, false, |
| ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT }, |
| { MEDIA_BUS_FMT_VYUY12_1X24, ADV7842_OP_CH_SEL_RBG, false, true, |
| ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT }, |
| { MEDIA_BUS_FMT_YUYV12_1X24, ADV7842_OP_CH_SEL_RGB, false, false, |
| ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT }, |
| { MEDIA_BUS_FMT_YVYU12_1X24, ADV7842_OP_CH_SEL_RGB, false, true, |
| ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT }, |
| }; |
| |
| static const struct adv7842_format_info * |
| adv7842_format_info(struct adv7842_state *state, u32 code) |
| { |
| unsigned int i; |
| |
| for (i = 0; i < ARRAY_SIZE(adv7842_formats); ++i) { |
| if (adv7842_formats[i].code == code) |
| return &adv7842_formats[i]; |
| } |
| |
| return NULL; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static inline bool is_analog_input(struct v4l2_subdev *sd) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return ((state->mode == ADV7842_MODE_RGB) || |
| (state->mode == ADV7842_MODE_COMP)); |
| } |
| |
| static inline bool is_digital_input(struct v4l2_subdev *sd) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| return state->mode == ADV7842_MODE_HDMI; |
| } |
| |
| static const struct v4l2_dv_timings_cap adv7842_timings_cap_analog = { |
| .type = V4L2_DV_BT_656_1120, |
| /* keep this initialization for compatibility with GCC < 4.4.6 */ |
| .reserved = { 0 }, |
| V4L2_INIT_BT_TIMINGS(0, 1920, 0, 1200, 25000000, 170000000, |
| V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | |
| V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT, |
| V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING | |
| V4L2_DV_BT_CAP_CUSTOM) |
| }; |
| |
| static const struct v4l2_dv_timings_cap adv7842_timings_cap_digital = { |
| .type = V4L2_DV_BT_656_1120, |
| /* keep this initialization for compatibility with GCC < 4.4.6 */ |
| .reserved = { 0 }, |
| V4L2_INIT_BT_TIMINGS(0, 1920, 0, 1200, 25000000, 225000000, |
| V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | |
| V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT, |
| V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING | |
| V4L2_DV_BT_CAP_CUSTOM) |
| }; |
| |
| static inline const struct v4l2_dv_timings_cap * |
| adv7842_get_dv_timings_cap(struct v4l2_subdev *sd) |
| { |
| return is_digital_input(sd) ? &adv7842_timings_cap_digital : |
| &adv7842_timings_cap_analog; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static void adv7842_delayed_work_enable_hotplug(struct work_struct *work) |
| { |
| struct delayed_work *dwork = to_delayed_work(work); |
| struct adv7842_state *state = container_of(dwork, |
| struct adv7842_state, delayed_work_enable_hotplug); |
| struct v4l2_subdev *sd = &state->sd; |
| int present = state->hdmi_edid.present; |
| u8 mask = 0; |
| |
| v4l2_dbg(2, debug, sd, "%s: enable hotplug on ports: 0x%x\n", |
| __func__, present); |
| |
| if (present & (0x04 << ADV7842_EDID_PORT_A)) |
| mask |= 0x20; |
| if (present & (0x04 << ADV7842_EDID_PORT_B)) |
| mask |= 0x10; |
| io_write_and_or(sd, 0x20, 0xcf, mask); |
| } |
| |
| static int edid_write_vga_segment(struct v4l2_subdev *sd) |
| { |
| struct i2c_client *client = v4l2_get_subdevdata(sd); |
| struct adv7842_state *state = to_state(sd); |
| const u8 *val = state->vga_edid.edid; |
| int err = 0; |
| int i; |
| |
| v4l2_dbg(2, debug, sd, "%s: write EDID on VGA port\n", __func__); |
| |
| /* HPA disable on port A and B */ |
| io_write_and_or(sd, 0x20, 0xcf, 0x00); |
| |
| /* Disable I2C access to internal EDID ram from VGA DDC port */ |
| rep_write_and_or(sd, 0x7f, 0x7f, 0x00); |
| |
| /* edid segment pointer '1' for VGA port */ |
| rep_write_and_or(sd, 0x77, 0xef, 0x10); |
| |
| for (i = 0; !err && i < 256; 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; |
| |
| /* Calculates the checksums and enables I2C access |
| * to internal EDID ram from VGA DDC port. |
| */ |
| rep_write_and_or(sd, 0x7f, 0x7f, 0x80); |
| |
| for (i = 0; i < 1000; i++) { |
| if (rep_read(sd, 0x79) & 0x20) |
| break; |
| mdelay(1); |
| } |
| if (i == 1000) { |
| v4l_err(client, "error enabling edid on VGA port\n"); |
| return -EIO; |
| } |
| |
| /* enable hotplug after 200 ms */ |
| queue_delayed_work(state->work_queues, |
| &state->delayed_work_enable_hotplug, HZ / 5); |
| |
| return 0; |
| } |
| |
| static int edid_spa_location(const u8 *edid) |
| { |
| u8 d; |
| |
| /* |
| * TODO, improve and update for other CEA extensions |
| * currently only for 1 segment (256 bytes), |
| * i.e. 1 extension block and CEA revision 3. |
| */ |
| if ((edid[0x7e] != 1) || |
| (edid[0x80] != 0x02) || |
| (edid[0x81] != 0x03)) { |
| return -EINVAL; |
| } |
| /* |
| * 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 -EINVAL; |
| } |
| |
| static int edid_write_hdmi_segment(struct v4l2_subdev *sd, u8 port) |
| { |
| struct i2c_client *client = v4l2_get_subdevdata(sd); |
| struct adv7842_state *state = to_state(sd); |
| const u8 *val = state->hdmi_edid.edid; |
| int spa_loc = edid_spa_location(val); |
| int err = 0; |
| int i; |
| |
| v4l2_dbg(2, debug, sd, "%s: write EDID on port %c (spa at 0x%x)\n", |
| __func__, (port == ADV7842_EDID_PORT_A) ? 'A' : 'B', spa_loc); |
| |
| /* HPA disable on port A and B */ |
| io_write_and_or(sd, 0x20, 0xcf, 0x00); |
| |
| /* Disable I2C access to internal EDID ram from HDMI DDC ports */ |
| rep_write_and_or(sd, 0x77, 0xf3, 0x00); |
| |
| if (!state->hdmi_edid.present) |
| return 0; |
| |
| /* edid segment pointer '0' for HDMI ports */ |
| rep_write_and_or(sd, 0x77, 0xef, 0x00); |
| |
| for (i = 0; !err && i < 256; 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; |
| |
| if (spa_loc < 0) |
| spa_loc = 0xc0; /* Default value [REF_02, p. 199] */ |
| |
| if (port == ADV7842_EDID_PORT_A) { |
| rep_write(sd, 0x72, val[spa_loc]); |
| rep_write(sd, 0x73, val[spa_loc + 1]); |
| } else { |
| rep_write(sd, 0x74, val[spa_loc]); |
| rep_write(sd, 0x75, val[spa_loc + 1]); |
| } |
| rep_write(sd, 0x76, spa_loc & 0xff); |
| rep_write_and_or(sd, 0x77, 0xbf, (spa_loc >> 2) & 0x40); |
| |
| /* Calculates the checksums and enables I2C access to internal |
| * EDID ram from HDMI DDC ports |
| */ |
| rep_write_and_or(sd, 0x77, 0xf3, state->hdmi_edid.present); |
| |
| for (i = 0; i < 1000; i++) { |
| if (rep_read(sd, 0x7d) & state->hdmi_edid.present) |
| break; |
| mdelay(1); |
| } |
| if (i == 1000) { |
| v4l_err(client, "error enabling edid on port %c\n", |
| (port == ADV7842_EDID_PORT_A) ? 'A' : 'B'); |
| return -EIO; |
| } |
| |
| /* enable hotplug after 200 ms */ |
| queue_delayed_work(state->work_queues, |
| &state->delayed_work_enable_hotplug, HZ / 5); |
| |
| return 0; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| #ifdef CONFIG_VIDEO_ADV_DEBUG |
| static void adv7842_inv_register(struct v4l2_subdev *sd) |
| { |
| v4l2_info(sd, "0x000-0x0ff: IO Map\n"); |
| v4l2_info(sd, "0x100-0x1ff: AVLink Map\n"); |
| v4l2_info(sd, "0x200-0x2ff: CEC Map\n"); |
| v4l2_info(sd, "0x300-0x3ff: InfoFrame Map\n"); |
| v4l2_info(sd, "0x400-0x4ff: SDP_IO Map\n"); |
| v4l2_info(sd, "0x500-0x5ff: SDP Map\n"); |
| v4l2_info(sd, "0x600-0x6ff: AFE Map\n"); |
| v4l2_info(sd, "0x700-0x7ff: Repeater Map\n"); |
| v4l2_info(sd, "0x800-0x8ff: EDID Map\n"); |
| v4l2_info(sd, "0x900-0x9ff: HDMI Map\n"); |
| v4l2_info(sd, "0xa00-0xaff: CP Map\n"); |
| v4l2_info(sd, "0xb00-0xbff: VDP Map\n"); |
| } |
| |
| static int adv7842_g_register(struct v4l2_subdev *sd, |
| struct v4l2_dbg_register *reg) |
| { |
| reg->size = 1; |
| switch (reg->reg >> 8) { |
| case 0: |
| reg->val = io_read(sd, reg->reg & 0xff); |
| break; |
| case 1: |
| reg->val = avlink_read(sd, reg->reg & 0xff); |
| break; |
| case 2: |
| reg->val = cec_read(sd, reg->reg & 0xff); |
| break; |
| case 3: |
| reg->val = infoframe_read(sd, reg->reg & 0xff); |
| break; |
| case 4: |
| reg->val = sdp_io_read(sd, reg->reg & 0xff); |
| break; |
| case 5: |
| reg->val = sdp_read(sd, reg->reg & 0xff); |
| break; |
| case 6: |
| reg->val = afe_read(sd, reg->reg & 0xff); |
| break; |
| case 7: |
| reg->val = rep_read(sd, reg->reg & 0xff); |
| break; |
| case 8: |
| reg->val = edid_read(sd, reg->reg & 0xff); |
| break; |
| case 9: |
| reg->val = hdmi_read(sd, reg->reg & 0xff); |
| break; |
| case 0xa: |
| reg->val = cp_read(sd, reg->reg & 0xff); |
| break; |
| case 0xb: |
| reg->val = vdp_read(sd, reg->reg & 0xff); |
| break; |
| default: |
| v4l2_info(sd, "Register %03llx not supported\n", reg->reg); |
| adv7842_inv_register(sd); |
| break; |
| } |
| return 0; |
| } |
| |
| static int adv7842_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, val); |
| break; |
| case 1: |
| avlink_write(sd, reg->reg & 0xff, val); |
| break; |
| case 2: |
| cec_write(sd, reg->reg & 0xff, val); |
| break; |
| case 3: |
| infoframe_write(sd, reg->reg & 0xff, val); |
| break; |
| case 4: |
| sdp_io_write(sd, reg->reg & 0xff, val); |
| break; |
| case 5: |
| sdp_write(sd, reg->reg & 0xff, val); |
| break; |
| case 6: |
| afe_write(sd, reg->reg & 0xff, val); |
| break; |
| case 7: |
| rep_write(sd, reg->reg & 0xff, val); |
| break; |
| case 8: |
| edid_write(sd, reg->reg & 0xff, val); |
| break; |
| case 9: |
| hdmi_write(sd, reg->reg & 0xff, val); |
| break; |
| case 0xa: |
| cp_write(sd, reg->reg & 0xff, val); |
| break; |
| case 0xb: |
| vdp_write(sd, reg->reg & 0xff, val); |
| break; |
| default: |
| v4l2_info(sd, "Register %03llx not supported\n", reg->reg); |
| adv7842_inv_register(sd); |
| break; |
| } |
| return 0; |
| } |
| #endif |
| |
| static int adv7842_s_detect_tx_5v_ctrl(struct v4l2_subdev *sd) |
| { |
| struct adv7842_state *state = to_state(sd); |
| int prev = v4l2_ctrl_g_ctrl(state->detect_tx_5v_ctrl); |
| u8 reg_io_6f = io_read(sd, 0x6f); |
| int val = 0; |
| |
| if (reg_io_6f & 0x02) |
| val |= 1; /* port A */ |
| if (reg_io_6f & 0x01) |
| val |= 2; /* port B */ |
| |
| v4l2_dbg(1, debug, sd, "%s: 0x%x -> 0x%x\n", __func__, prev, val); |
| |
| if (val != prev) |
| return v4l2_ctrl_s_ctrl(state->detect_tx_5v_ctrl, val); |
| return 0; |
| } |
| |
| static int find_and_set_predefined_video_timings(struct v4l2_subdev *sd, |
| u8 prim_mode, |
| const struct adv7842_video_standards *predef_vid_timings, |
| const struct v4l2_dv_timings *timings) |
| { |
| int i; |
| |
| for (i = 0; predef_vid_timings[i].timings.bt.width; i++) { |
| if (!v4l2_match_dv_timings(timings, &predef_vid_timings[i].timings, |
| is_digital_input(sd) ? 250000 : 1000000, false)) |
| continue; |
| /* video std */ |
| io_write(sd, 0x00, predef_vid_timings[i].vid_std); |
| /* v_freq and prim mode */ |
| io_write(sd, 0x01, (predef_vid_timings[i].v_freq << 4) + prim_mode); |
| return 0; |
| } |
| |
| return -1; |
| } |
| |
| static int configure_predefined_video_timings(struct v4l2_subdev *sd, |
| struct v4l2_dv_timings *timings) |
| { |
| struct adv7842_state *state = to_state(sd); |
| int err; |
| |
| v4l2_dbg(1, debug, sd, "%s\n", __func__); |
| |
| /* reset to default values */ |
| io_write(sd, 0x16, 0x43); |
| io_write(sd, 0x17, 0x5a); |
| /* disable embedded syncs for auto graphics mode */ |
| cp_write_and_or(sd, 0x81, 0xef, 0x00); |
| cp_write(sd, 0x26, 0x00); |
| cp_write(sd, 0x27, 0x00); |
| cp_write(sd, 0x28, 0x00); |
| cp_write(sd, 0x29, 0x00); |
| cp_write(sd, 0x8f, 0x40); |
| cp_write(sd, 0x90, 0x00); |
| cp_write(sd, 0xa5, 0x00); |
| cp_write(sd, 0xa6, 0x00); |
| cp_write(sd, 0xa7, 0x00); |
| cp_write(sd, 0xab, 0x00); |
| cp_write(sd, 0xac, 0x00); |
| |
| switch (state->mode) { |
| case ADV7842_MODE_COMP: |
| case ADV7842_MODE_RGB: |
| err = find_and_set_predefined_video_timings(sd, |
| 0x01, adv7842_prim_mode_comp, timings); |
| if (err) |
| err = find_and_set_predefined_video_timings(sd, |
| 0x02, adv7842_prim_mode_gr, timings); |
| break; |
| case ADV7842_MODE_HDMI: |
| err = find_and_set_predefined_video_timings(sd, |
| 0x05, adv7842_prim_mode_hdmi_comp, timings); |
| if (err) |
| err = find_and_set_predefined_video_timings(sd, |
| 0x06, adv7842_prim_mode_hdmi_gr, timings); |
| break; |
| default: |
| v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n", |
| __func__, state->mode); |
| err = -1; |
| break; |
| } |
| |
| |
| return err; |
| } |
| |
| static void configure_custom_video_timings(struct v4l2_subdev *sd, |
| const struct v4l2_bt_timings *bt) |
| { |
| struct adv7842_state *state = to_state(sd); |
| struct i2c_client *client = v4l2_get_subdevdata(sd); |
| u32 width = htotal(bt); |
| u32 height = vtotal(bt); |
| u16 cp_start_sav = bt->hsync + bt->hbackporch - 4; |
| u16 cp_start_eav = width - bt->hfrontporch; |
| u16 cp_start_vbi = height - bt->vfrontporch + 1; |
| u16 cp_end_vbi = bt->vsync + bt->vbackporch + 1; |
| u16 ch1_fr_ll = (((u32)bt->pixelclock / 100) > 0) ? |
| ((width * (ADV7842_fsc / 100)) / ((u32)bt->pixelclock / 100)) : 0; |
| const u8 pll[2] = { |
| 0xc0 | ((width >> 8) & 0x1f), |
| width & 0xff |
| }; |
| |
| v4l2_dbg(2, debug, sd, "%s\n", __func__); |
| |
| switch (state->mode) { |
| case ADV7842_MODE_COMP: |
| case ADV7842_MODE_RGB: |
| /* auto graphics */ |
| io_write(sd, 0x00, 0x07); /* video std */ |
| io_write(sd, 0x01, 0x02); /* prim mode */ |
| /* enable embedded syncs for auto graphics mode */ |
| cp_write_and_or(sd, 0x81, 0xef, 0x10); |
| |
| /* 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)) { |
| v4l2_err(sd, "writing to reg 0x16 and 0x17 failed\n"); |
| break; |
| } |
| |
| /* active video - horizontal timing */ |
| cp_write(sd, 0x26, (cp_start_sav >> 8) & 0xf); |
| cp_write(sd, 0x27, (cp_start_sav & 0xff)); |
| cp_write(sd, 0x28, (cp_start_eav >> 8) & 0xf); |
| cp_write(sd, 0x29, (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_write(sd, 0xa7, cp_end_vbi & 0xff); |
| break; |
| case ADV7842_MODE_HDMI: |
| /* 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; |
| } |
| |
| cp_write(sd, 0x8f, (ch1_fr_ll >> 8) & 0x7); |
| cp_write(sd, 0x90, ch1_fr_ll & 0xff); |
| cp_write(sd, 0xab, (height >> 4) & 0xff); |
| cp_write(sd, 0xac, (height & 0x0f) << 4); |
| } |
| |
| static void adv7842_set_offset(struct v4l2_subdev *sd, bool auto_offset, u16 offset_a, u16 offset_b, u16 offset_c) |
| { |
| struct adv7842_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 adv7842_set_gain(struct v4l2_subdev *sd, bool auto_gain, u16 gain_a, u16 gain_b, u16 gain_c) |
| { |
| struct adv7842_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 adv7842_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); |
| |
| adv7842_set_gain(sd, true, 0x0, 0x0, 0x0); |
| adv7842_set_offset(sd, true, 0x0, 0x0, 0x0); |
| |
| switch (state->rgb_quantization_range) { |
| case V4L2_DV_RGB_RANGE_AUTO: |
| if (state->mode == ADV7842_MODE_RGB) { |
| /* Receiving analog RGB signal |
| * Set RGB full range (0-255) */ |
| io_write_and_or(sd, 0x02, 0x0f, 0x10); |
| break; |
| } |
| |
| if (state->mode == ADV7842_MODE_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; |
| } |
| |
| /* Receiving DVI-D signal |
| * ADV7842 selects RGB limited range regardless of |
| * input format (CE/IT) in automatic mode */ |
| if (state->timings.bt.flags & V4L2_DV_FL_IS_CE_VIDEO) { |
| /* 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) { |
| adv7842_set_offset(sd, false, 0x40, 0x40, 0x40); |
| } else { |
| adv7842_set_gain(sd, false, 0xe0, 0xe0, 0xe0); |
| adv7842_set_offset(sd, false, 0x70, 0x70, 0x70); |
| } |
| } |
| break; |
| case V4L2_DV_RGB_RANGE_LIMITED: |
| if (state->mode == ADV7842_MODE_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->mode == ADV7842_MODE_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) { |
| adv7842_set_offset(sd, false, 0x40, 0x40, 0x40); |
| } else { |
| adv7842_set_gain(sd, false, 0xe0, 0xe0, 0xe0); |
| adv7842_set_offset(sd, false, 0x70, 0x70, 0x70); |
| } |
| break; |
| } |
| } |
| |
| static int adv7842_s_ctrl(struct v4l2_ctrl *ctrl) |
| { |
| struct v4l2_subdev *sd = to_sd(ctrl); |
| struct adv7842_state *state = to_state(sd); |
| |
| /* TODO SDP ctrls |
| contrast/brightness/hue/free run is acting a bit strange, |
| not sure if sdp csc is correct. |
| */ |
| switch (ctrl->id) { |
| /* standard ctrls */ |
| case V4L2_CID_BRIGHTNESS: |
| cp_write(sd, 0x3c, ctrl->val); |
| sdp_write(sd, 0x14, ctrl->val); |
| /* ignore lsb sdp 0x17[3:2] */ |
| return 0; |
| case V4L2_CID_CONTRAST: |
| cp_write(sd, 0x3a, ctrl->val); |
| sdp_write(sd, 0x13, ctrl->val); |
| /* ignore lsb sdp 0x17[1:0] */ |
| return 0; |
| case V4L2_CID_SATURATION: |
| cp_write(sd, 0x3b, ctrl->val); |
| sdp_write(sd, 0x15, ctrl->val); |
| /* ignore lsb sdp 0x17[5:4] */ |
| return 0; |
| case V4L2_CID_HUE: |
| cp_write(sd, 0x3d, ctrl->val); |
| sdp_write(sd, 0x16, ctrl->val); |
| /* ignore lsb sdp 0x17[7:6] */ |
| return 0; |
| /* custom ctrls */ |
| case V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE: |
| afe_write(sd, 0xc8, ctrl->val); |
| return 0; |
| case V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL: |
| cp_write_and_or(sd, 0xbf, ~0x04, (ctrl->val << 2)); |
| sdp_write_and_or(sd, 0xdd, ~0x04, (ctrl->val << 2)); |
| return 0; |
| case V4L2_CID_ADV_RX_FREE_RUN_COLOR: { |
| u8 R = (ctrl->val & 0xff0000) >> 16; |
| u8 G = (ctrl->val & 0x00ff00) >> 8; |
| u8 B = (ctrl->val & 0x0000ff); |
| /* RGB -> YUV, numerical approximation */ |
| int Y = 66 * R + 129 * G + 25 * B; |
| int U = -38 * R - 74 * G + 112 * B; |
| int V = 112 * R - 94 * G - 18 * B; |
| |
| /* Scale down to 8 bits with rounding */ |
| Y = (Y + 128) >> 8; |
| U = (U + 128) >> 8; |
| V = (V + 128) >> 8; |
| /* make U,V positive */ |
| Y += 16; |
| U += 128; |
| V += 128; |
| |
| v4l2_dbg(1, debug, sd, "R %x, G %x, B %x\n", R, G, B); |
| v4l2_dbg(1, debug, sd, "Y %x, U %x, V %x\n", Y, U, V); |
| |
| /* CP */ |
| cp_write(sd, 0xc1, R); |
| cp_write(sd, 0xc0, G); |
| cp_write(sd, 0xc2, B); |
| /* SDP */ |
| sdp_write(sd, 0xde, Y); |
| sdp_write(sd, 0xdf, (V & 0xf0) | ((U >> 4) & 0x0f)); |
| return 0; |
| } |
| case V4L2_CID_DV_RX_RGB_RANGE: |
| state->rgb_quantization_range = ctrl->val; |
| set_rgb_quantization_range(sd); |
| return 0; |
| } |
| return -EINVAL; |
| } |
| |
| static int adv7842_g_volatile_ctrl(struct v4l2_ctrl *ctrl) |
| { |
| struct v4l2_subdev *sd = to_sd(ctrl); |
| |
| if (ctrl->id == V4L2_CID_DV_RX_IT_CONTENT_TYPE) { |
| ctrl->val = V4L2_DV_IT_CONTENT_TYPE_NO_ITC; |
| if ((io_read(sd, 0x60) & 1) && (infoframe_read(sd, 0x03) & 0x80)) |
| ctrl->val = (infoframe_read(sd, 0x05) >> 4) & 3; |
| return 0; |
| } |
| return -EINVAL; |
| } |
| |
| static inline bool no_power(struct v4l2_subdev *sd) |
| { |
| return io_read(sd, 0x0c) & 0x24; |
| } |
| |
| static inline bool no_cp_signal(struct v4l2_subdev *sd) |
| { |
| return ((cp_read(sd, 0xb5) & 0xd0) != 0xd0) || !(cp_read(sd, 0xb1) & 0x80); |
| } |
| |
| static inline bool is_hdmi(struct v4l2_subdev *sd) |
| { |
| return hdmi_read(sd, 0x05) & 0x80; |
| } |
| |
| static int adv7842_g_input_status(struct v4l2_subdev *sd, u32 *status) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| *status = 0; |
| |
| if (io_read(sd, 0x0c) & 0x24) |
| *status |= V4L2_IN_ST_NO_POWER; |
| |
| if (state->mode == ADV7842_MODE_SDP) { |
| /* status from SDP block */ |
| if (!(sdp_read(sd, 0x5A) & 0x01)) |
| *status |= V4L2_IN_ST_NO_SIGNAL; |
| |
| v4l2_dbg(1, debug, sd, "%s: SDP status = 0x%x\n", |
| __func__, *status); |
| return 0; |
| } |
| /* status from CP block */ |
| if ((cp_read(sd, 0xb5) & 0xd0) != 0xd0 || |
| !(cp_read(sd, 0xb1) & 0x80)) |
| /* TODO channel 2 */ |
| *status |= V4L2_IN_ST_NO_SIGNAL; |
| |
| if (is_digital_input(sd) && ((io_read(sd, 0x74) & 0x03) != 0x03)) |
| *status |= V4L2_IN_ST_NO_SIGNAL; |
| |
| v4l2_dbg(1, debug, sd, "%s: CP status = 0x%x\n", |
| __func__, *status); |
| |
| return 0; |
| } |
| |
| struct stdi_readback { |
| u16 bl, lcf, lcvs; |
| u8 hs_pol, vs_pol; |
| bool interlaced; |
| }; |
| |
| static int stdi2dv_timings(struct v4l2_subdev *sd, |
| struct stdi_readback *stdi, |
| struct v4l2_dv_timings *timings) |
| { |
| struct adv7842_state *state = to_state(sd); |
| u32 hfreq = (ADV7842_fsc * 8) / stdi->bl; |
| u32 pix_clk; |
| int i; |
| |
| 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 (vtotal(bt) != stdi->lcf + 1) |
| continue; |
| if (bt->vsync != stdi->lcvs) |
| continue; |
| |
| pix_clk = hfreq * htotal(bt); |
| |
| if ((pix_clk < bt->pixelclock + 1000000) && |
| (pix_clk > bt->pixelclock - 1000000)) { |
| *timings = v4l2_dv_timings_presets[i]; |
| return 0; |
| } |
| } |
| |
| if (v4l2_detect_cvt(stdi->lcf + 1, hfreq, stdi->lcvs, 0, |
| (stdi->hs_pol == '+' ? V4L2_DV_HSYNC_POS_POL : 0) | |
| (stdi->vs_pol == '+' ? V4L2_DV_VSYNC_POS_POL : 0), |
| false, timings)) |
| return 0; |
| if (v4l2_detect_gtf(stdi->lcf + 1, hfreq, stdi->lcvs, |
| (stdi->hs_pol == '+' ? V4L2_DV_HSYNC_POS_POL : 0) | |
| (stdi->vs_pol == '+' ? V4L2_DV_VSYNC_POS_POL : 0), |
| false, state->aspect_ratio, timings)) |
| return 0; |
| |
| v4l2_dbg(2, debug, sd, |
| "%s: No format candidate found for lcvs = %d, lcf=%d, bl = %d, %chsync, %cvsync\n", |
| __func__, stdi->lcvs, stdi->lcf, stdi->bl, |
| stdi->hs_pol, stdi->vs_pol); |
| return -1; |
| } |
| |
| static int read_stdi(struct v4l2_subdev *sd, struct stdi_readback *stdi) |
| { |
| u32 status; |
| |
| adv7842_g_input_status(sd, &status); |
| if (status & V4L2_IN_ST_NO_SIGNAL) { |
| v4l2_dbg(2, debug, sd, "%s: no signal\n", __func__); |
| return -ENOLINK; |
| } |
| |
| stdi->bl = ((cp_read(sd, 0xb1) & 0x3f) << 8) | cp_read(sd, 0xb2); |
| stdi->lcf = ((cp_read(sd, 0xb3) & 0x7) << 8) | cp_read(sd, 0xb4); |
| stdi->lcvs = cp_read(sd, 0xb3) >> 3; |
| |
| if ((cp_read(sd, 0xb5) & 0x80) && ((cp_read(sd, 0xb5) & 0x03) == 0x01)) { |
| stdi->hs_pol = ((cp_read(sd, 0xb5) & 0x10) ? |
| ((cp_read(sd, 0xb5) & 0x08) ? '+' : '-') : 'x'); |
| stdi->vs_pol = ((cp_read(sd, 0xb5) & 0x40) ? |
| ((cp_read(sd, 0xb5) & 0x20) ? '+' : '-') : 'x'); |
| } else { |
| stdi->hs_pol = 'x'; |
| stdi->vs_pol = 'x'; |
| } |
| stdi->interlaced = (cp_read(sd, 0xb1) & 0x40) ? true : false; |
| |
| if (stdi->lcf < 239 || stdi->bl < 8 || stdi->bl == 0x3fff) { |
| v4l2_dbg(2, debug, sd, "%s: invalid signal\n", __func__); |
| return -ENOLINK; |
| } |
| |
| v4l2_dbg(2, debug, sd, |
| "%s: lcf (frame height - 1) = %d, bl = %d, lcvs (vsync) = %d, %chsync, %cvsync, %s\n", |
| __func__, stdi->lcf, stdi->bl, stdi->lcvs, |
| stdi->hs_pol, stdi->vs_pol, |
| stdi->interlaced ? "interlaced" : "progressive"); |
| |
| return 0; |
| } |
| |
| static int adv7842_enum_dv_timings(struct v4l2_subdev *sd, |
| struct v4l2_enum_dv_timings *timings) |
| { |
| if (timings->pad != 0) |
| return -EINVAL; |
| |
| return v4l2_enum_dv_timings_cap(timings, |
| adv7842_get_dv_timings_cap(sd), adv7842_check_dv_timings, NULL); |
| } |
| |
| static int adv7842_dv_timings_cap(struct v4l2_subdev *sd, |
| struct v4l2_dv_timings_cap *cap) |
| { |
| if (cap->pad != 0) |
| return -EINVAL; |
| |
| *cap = *adv7842_get_dv_timings_cap(sd); |
| return 0; |
| } |
| |
| /* Fill the optional fields .standards and .flags in struct v4l2_dv_timings |
| if the format is listed in adv7842_timings[] */ |
| static void adv7842_fill_optional_dv_timings_fields(struct v4l2_subdev *sd, |
| struct v4l2_dv_timings *timings) |
| { |
| v4l2_find_dv_timings_cap(timings, adv7842_get_dv_timings_cap(sd), |
| is_digital_input(sd) ? 250000 : 1000000, |
| adv7842_check_dv_timings, NULL); |
| } |
| |
| static int adv7842_query_dv_timings(struct v4l2_subdev *sd, |
| struct v4l2_dv_timings *timings) |
| { |
| struct adv7842_state *state = to_state(sd); |
| struct v4l2_bt_timings *bt = &timings->bt; |
| struct stdi_readback stdi = { 0 }; |
| |
| v4l2_dbg(1, debug, sd, "%s:\n", __func__); |
| |
| memset(timings, 0, sizeof(struct v4l2_dv_timings)); |
| |
| /* SDP block */ |
| if (state->mode == ADV7842_MODE_SDP) |
| return -ENODATA; |
| |
| /* read STDI */ |
| if (read_stdi(sd, &stdi)) { |
| state->restart_stdi_once = true; |
| v4l2_dbg(1, debug, sd, "%s: no valid signal\n", __func__); |
| return -ENOLINK; |
| } |
| bt->interlaced = stdi.interlaced ? |
| V4L2_DV_INTERLACED : V4L2_DV_PROGRESSIVE; |
| bt->standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | |
| V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT; |
| |
| if (is_digital_input(sd)) { |
| u32 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, 0x51) << 1) + (hdmi_read(sd, 0x52) >> 7)) * 1000000; |
| freq += ((hdmi_read(sd, 0x52) & 0x7f) * 7813); |
| if (is_hdmi(sd)) { |
| /* adjust for deep color mode */ |
| freq = freq * 8 / (((hdmi_read(sd, 0x0b) & 0xc0) >> 6) * 2 + 8); |
| } |
| bt->pixelclock = freq; |
| bt->hfrontporch = (hdmi_read(sd, 0x20) & 0x03) * 256 + |
| hdmi_read(sd, 0x21); |
| bt->hsync = (hdmi_read(sd, 0x22) & 0x03) * 256 + |
| hdmi_read(sd, 0x23); |
| bt->hbackporch = (hdmi_read(sd, 0x24) & 0x03) * 256 + |
| hdmi_read(sd, 0x25); |
| 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->il_vbackporch = ((hdmi_read(sd, 0x34) & 0x1f) * 256 + |
| hdmi_read(sd, 0x35)) / 2; |
| } else { |
| bt->il_vfrontporch = 0; |
| bt->il_vsync = 0; |
| bt->il_vbackporch = 0; |
| } |
| adv7842_fill_optional_dv_timings_fields(sd, timings); |
| } else { |
| /* find format |
| * Since LCVS values are inaccurate [REF_03, p. 339-340], |
| * stdi2dv_timings() is called with lcvs +-1 if the first attempt fails. |
| */ |
| if (!stdi2dv_timings(sd, &stdi, timings)) |
| goto found; |
| stdi.lcvs += 1; |
| v4l2_dbg(1, debug, sd, "%s: lcvs + 1 = %d\n", __func__, stdi.lcvs); |
| if (!stdi2dv_timings(sd, &stdi, timings)) |
| goto found; |
| stdi.lcvs -= 2; |
| v4l2_dbg(1, debug, sd, "%s: lcvs - 1 = %d\n", __func__, stdi.lcvs); |
| if (stdi2dv_timings(sd, &stdi, timings)) { |
| /* |
| * The STDI block may measure wrong values, especially |
| * for lcvs and lcf. If the driver can not find any |
| * valid timing, the STDI block is restarted to measure |
| * the video timings again. The function will return an |
| * error, but the restart of STDI will generate a new |
| * STDI interrupt and the format detection process will |
| * restart. |
| */ |
| if (state->restart_stdi_once) { |
| v4l2_dbg(1, debug, sd, "%s: restart STDI\n", __func__); |
| /* TODO restart STDI for Sync Channel 2 */ |
| /* enter one-shot mode */ |
| cp_write_and_or(sd, 0x86, 0xf9, 0x00); |
| /* trigger STDI restart */ |
| cp_write_and_or(sd, 0x86, 0xf9, 0x04); |
| /* reset to continuous mode */ |
| cp_write_and_or(sd, 0x86, 0xf9, 0x02); |
| state->restart_stdi_once = false; |
| return -ENOLINK; |
| } |
| v4l2_dbg(1, debug, sd, "%s: format not supported\n", __func__); |
| return -ERANGE; |
| } |
| state->restart_stdi_once = true; |
| } |
| found: |
| |
| if (debug > 1) |
| v4l2_print_dv_timings(sd->name, "adv7842_query_dv_timings:", |
| timings, true); |
| return 0; |
| } |
| |
| static int adv7842_s_dv_timings(struct v4l2_subdev *sd, |
| struct v4l2_dv_timings *timings) |
| { |
| struct adv7842_state *state = to_state(sd); |
| struct v4l2_bt_timings *bt; |
| int err; |
| |
| v4l2_dbg(1, debug, sd, "%s:\n", __func__); |
| |
| if (state->mode == ADV7842_MODE_SDP) |
| return -ENODATA; |
| |
| if (v4l2_match_dv_timings(&state->timings, timings, 0, false)) { |
| v4l2_dbg(1, debug, sd, "%s: no change\n", __func__); |
| return 0; |
| } |
| |
| bt = &timings->bt; |
| |
| if (!v4l2_valid_dv_timings(timings, adv7842_get_dv_timings_cap(sd), |
| adv7842_check_dv_timings, NULL)) |
| return -ERANGE; |
| |
| adv7842_fill_optional_dv_timings_fields(sd, timings); |
| |
| state->timings = *timings; |
| |
| cp_write(sd, 0x91, bt->interlaced ? 0x40 : 0x00); |
| |
| /* Use prim_mode and vid_std when available */ |
| err = configure_predefined_video_timings(sd, timings); |
| if (err) { |
| /* custom settings when the video format |
| does not have prim_mode/vid_std */ |
| configure_custom_video_timings(sd, bt); |
| } |
| |
| set_rgb_quantization_range(sd); |
| |
| |
| if (debug > 1) |
| v4l2_print_dv_timings(sd->name, "adv7842_s_dv_timings: ", |
| timings, true); |
| return 0; |
| } |
| |
| static int adv7842_g_dv_timings(struct v4l2_subdev *sd, |
| struct v4l2_dv_timings *timings) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| if (state->mode == ADV7842_MODE_SDP) |
| return -ENODATA; |
| *timings = state->timings; |
| return 0; |
| } |
| |
| static void enable_input(struct v4l2_subdev *sd) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| set_rgb_quantization_range(sd); |
| switch (state->mode) { |
| case ADV7842_MODE_SDP: |
| case ADV7842_MODE_COMP: |
| case ADV7842_MODE_RGB: |
| io_write(sd, 0x15, 0xb0); /* Disable Tristate of Pins (no audio) */ |
| break; |
| case ADV7842_MODE_HDMI: |
| hdmi_write(sd, 0x01, 0x00); /* Enable HDMI clock terminators */ |
| io_write(sd, 0x15, 0xa0); /* Disable Tristate of Pins */ |
| hdmi_write_and_or(sd, 0x1a, 0xef, 0x00); /* Unmute audio */ |
| break; |
| default: |
| v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n", |
| __func__, state->mode); |
| break; |
| } |
| } |
| |
| static void disable_input(struct v4l2_subdev *sd) |
| { |
| hdmi_write_and_or(sd, 0x1a, 0xef, 0x10); /* Mute audio [REF_01, c. 2.2.2] */ |
| msleep(16); /* 512 samples with >= 32 kHz sample rate [REF_03, c. 8.29] */ |
| io_write(sd, 0x15, 0xbe); /* Tristate all outputs from video core */ |
| hdmi_write(sd, 0x01, 0x78); /* Disable HDMI clock terminators */ |
| } |
| |
| static void sdp_csc_coeff(struct v4l2_subdev *sd, |
| const struct adv7842_sdp_csc_coeff *c) |
| { |
| /* csc auto/manual */ |
| sdp_io_write_and_or(sd, 0xe0, 0xbf, c->manual ? 0x00 : 0x40); |
| |
| if (!c->manual) |
| return; |
| |
| /* csc scaling */ |
| sdp_io_write_and_or(sd, 0xe0, 0x7f, c->scaling == 2 ? 0x80 : 0x00); |
| |
| /* A coeff */ |
| sdp_io_write_and_or(sd, 0xe0, 0xe0, c->A1 >> 8); |
| sdp_io_write(sd, 0xe1, c->A1); |
| sdp_io_write_and_or(sd, 0xe2, 0xe0, c->A2 >> 8); |
| sdp_io_write(sd, 0xe3, c->A2); |
| sdp_io_write_and_or(sd, 0xe4, 0xe0, c->A3 >> 8); |
| sdp_io_write(sd, 0xe5, c->A3); |
| |
| /* A scale */ |
| sdp_io_write_and_or(sd, 0xe6, 0x80, c->A4 >> 8); |
| sdp_io_write(sd, 0xe7, c->A4); |
| |
| /* B coeff */ |
| sdp_io_write_and_or(sd, 0xe8, 0xe0, c->B1 >> 8); |
| sdp_io_write(sd, 0xe9, c->B1); |
| sdp_io_write_and_or(sd, 0xea, 0xe0, c->B2 >> 8); |
| sdp_io_write(sd, 0xeb, c->B2); |
| sdp_io_write_and_or(sd, 0xec, 0xe0, c->B3 >> 8); |
| sdp_io_write(sd, 0xed, c->B3); |
| |
| /* B scale */ |
| sdp_io_write_and_or(sd, 0xee, 0x80, c->B4 >> 8); |
| sdp_io_write(sd, 0xef, c->B4); |
| |
| /* C coeff */ |
| sdp_io_write_and_or(sd, 0xf0, 0xe0, c->C1 >> 8); |
| sdp_io_write(sd, 0xf1, c->C1); |
| sdp_io_write_and_or(sd, 0xf2, 0xe0, c->C2 >> 8); |
| sdp_io_write(sd, 0xf3, c->C2); |
| sdp_io_write_and_or(sd, 0xf4, 0xe0, c->C3 >> 8); |
| sdp_io_write(sd, 0xf5, c->C3); |
| |
| /* C scale */ |
| sdp_io_write_and_or(sd, 0xf6, 0x80, c->C4 >> 8); |
| sdp_io_write(sd, 0xf7, c->C4); |
| } |
| |
| static void select_input(struct v4l2_subdev *sd, |
| enum adv7842_vid_std_select vid_std_select) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| switch (state->mode) { |
| case ADV7842_MODE_SDP: |
| io_write(sd, 0x00, vid_std_select); /* video std: CVBS or YC mode */ |
| io_write(sd, 0x01, 0); /* prim mode */ |
| /* enable embedded syncs for auto graphics mode */ |
| cp_write_and_or(sd, 0x81, 0xef, 0x10); |
| |
| afe_write(sd, 0x00, 0x00); /* power up ADC */ |
| afe_write(sd, 0xc8, 0x00); /* phase control */ |
| |
| io_write(sd, 0xdd, 0x90); /* Manual 2x output clock */ |
| /* script says register 0xde, which don't exist in manual */ |
| |
| /* Manual analog input muxing mode, CVBS (6.4)*/ |
| afe_write_and_or(sd, 0x02, 0x7f, 0x80); |
| if (vid_std_select == ADV7842_SDP_VID_STD_CVBS_SD_4x1) { |
| afe_write(sd, 0x03, 0xa0); /* ADC0 to AIN10 (CVBS), ADC1 N/C*/ |
| afe_write(sd, 0x04, 0x00); /* ADC2 N/C,ADC3 N/C*/ |
| } else { |
| afe_write(sd, 0x03, 0xa0); /* ADC0 to AIN10 (CVBS), ADC1 N/C*/ |
| afe_write(sd, 0x04, 0xc0); /* ADC2 to AIN12, ADC3 N/C*/ |
| } |
| afe_write(sd, 0x0c, 0x1f); /* ADI recommend write */ |
| afe_write(sd, 0x12, 0x63); /* ADI recommend write */ |
| |
| sdp_io_write(sd, 0xb2, 0x60); /* Disable AV codes */ |
| sdp_io_write(sd, 0xc8, 0xe3); /* Disable Ancillary data */ |
| |
| /* SDP recommended settings */ |
| sdp_write(sd, 0x00, 0x3F); /* Autodetect PAL NTSC (not SECAM) */ |
| sdp_write(sd, 0x01, 0x00); /* Pedestal Off */ |
| |
| sdp_write(sd, 0x03, 0xE4); /* Manual VCR Gain Luma 0x40B */ |
| sdp_write(sd, 0x04, 0x0B); /* Manual Luma setting */ |
| sdp_write(sd, 0x05, 0xC3); /* Manual Chroma setting 0x3FE */ |
| sdp_write(sd, 0x06, 0xFE); /* Manual Chroma setting */ |
| sdp_write(sd, 0x12, 0x0D); /* Frame TBC,I_P, 3D comb enabled */ |
| sdp_write(sd, 0xA7, 0x00); /* ADI Recommended Write */ |
| sdp_io_write(sd, 0xB0, 0x00); /* Disable H and v blanking */ |
| |
| /* deinterlacer enabled and 3D comb */ |
| sdp_write_and_or(sd, 0x12, 0xf6, 0x09); |
| |
| break; |
| |
| case ADV7842_MODE_COMP: |
| case ADV7842_MODE_RGB: |
| /* Automatic analog input muxing mode */ |
| afe_write_and_or(sd, 0x02, 0x7f, 0x00); |
| /* set mode and select free run resolution */ |
| io_write(sd, 0x00, vid_std_select); /* video std */ |
| io_write(sd, 0x01, 0x02); /* prim mode */ |
| cp_write_and_or(sd, 0x81, 0xef, 0x10); /* enable embedded syncs |
| for auto graphics mode */ |
| |
| afe_write(sd, 0x00, 0x00); /* power up ADC */ |
| afe_write(sd, 0xc8, 0x00); /* phase control */ |
| if (state->mode == ADV7842_MODE_COMP) { |
| /* force to YCrCb */ |
| io_write_and_or(sd, 0x02, 0x0f, 0x60); |
| } else { |
| /* force to RGB */ |
| io_write_and_or(sd, 0x02, 0x0f, 0x10); |
| } |
| |
| /* set ADI recommended settings for digitizer */ |
| /* "ADV7842 Register Settings Recommendations |
| * (rev. 1.8, November 2010)" p. 9. */ |
| afe_write(sd, 0x0c, 0x1f); /* ADC Range improvement */ |
| afe_write(sd, 0x12, 0x63); /* ADC Range improvement */ |
| |
| /* set to default gain for RGB */ |
| cp_write(sd, 0x73, 0x10); |
| cp_write(sd, 0x74, 0x04); |
| cp_write(sd, 0x75, 0x01); |
| cp_write(sd, 0x76, 0x00); |
| |
| 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; |
| |
| case ADV7842_MODE_HDMI: |
| /* Automatic analog input muxing mode */ |
| afe_write_and_or(sd, 0x02, 0x7f, 0x00); |
| /* set mode and select free run resolution */ |
| if (state->hdmi_port_a) |
| hdmi_write(sd, 0x00, 0x02); /* select port A */ |
| else |
| hdmi_write(sd, 0x00, 0x03); /* select port B */ |
| io_write(sd, 0x00, vid_std_select); /* video std */ |
| io_write(sd, 0x01, 5); /* prim mode */ |
| cp_write_and_or(sd, 0x81, 0xef, 0x00); /* disable embedded syncs |
| for auto graphics mode */ |
| |
| /* set ADI recommended settings for HDMI: */ |
| /* "ADV7842 Register Settings Recommendations |
| * (rev. 1.8, November 2010)" p. 3. */ |
| hdmi_write(sd, 0xc0, 0x00); |
| hdmi_write(sd, 0x0d, 0x34); /* ADI recommended write */ |
| hdmi_write(sd, 0x3d, 0x10); /* ADI recommended write */ |
| hdmi_write(sd, 0x44, 0x85); /* TMDS PLL optimization */ |
| hdmi_write(sd, 0x46, 0x1f); /* ADI recommended write */ |
| hdmi_write(sd, 0x57, 0xb6); /* TMDS PLL optimization */ |
| hdmi_write(sd, 0x58, 0x03); /* TMDS PLL optimization */ |
| hdmi_write(sd, 0x60, 0x88); /* TMDS PLL optimization */ |
| hdmi_write(sd, 0x61, 0x88); /* TMDS PLL optimization */ |
| hdmi_write(sd, 0x6c, 0x18); /* Disable ISRC clearing bit, |
| Improve robustness */ |
| hdmi_write(sd, 0x75, 0x10); /* DDC drive strength */ |
| hdmi_write(sd, 0x85, 0x1f); /* equaliser */ |
| hdmi_write(sd, 0x87, 0x70); /* ADI recommended write */ |
| hdmi_write(sd, 0x89, 0x04); /* equaliser */ |
| hdmi_write(sd, 0x8a, 0x1e); /* equaliser */ |
| hdmi_write(sd, 0x93, 0x04); /* equaliser */ |
| hdmi_write(sd, 0x94, 0x1e); /* equaliser */ |
| hdmi_write(sd, 0x99, 0xa1); /* ADI recommended write */ |
| hdmi_write(sd, 0x9b, 0x09); /* ADI recommended write */ |
| hdmi_write(sd, 0x9d, 0x02); /* equaliser */ |
| |
| afe_write(sd, 0x00, 0xff); /* power down ADC */ |
| afe_write(sd, 0xc8, 0x40); /* phase control */ |
| |
| /* set to default gain for HDMI */ |
| cp_write(sd, 0x73, 0x10); |
| cp_write(sd, 0x74, 0x04); |
| cp_write(sd, 0x75, 0x01); |
| cp_write(sd, 0x76, 0x00); |
| |
| /* reset ADI recommended settings for digitizer */ |
| /* "ADV7842 Register Settings Recommendations |
| * (rev. 2.5, June 2010)" p. 17. */ |
| afe_write(sd, 0x12, 0xfb); /* ADC noise shaping filter controls */ |
| afe_write(sd, 0x0c, 0x0d); /* CP core gain controls */ |
| cp_write(sd, 0x3e, 0x00); /* CP core pre-gain control */ |
| |
| /* CP coast control */ |
| cp_write(sd, 0xc3, 0x33); /* Component mode */ |
| |
| /* color space conversion, autodetect color space */ |
| io_write_and_or(sd, 0x02, 0x0f, 0xf0); |
| break; |
| |
| default: |
| v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n", |
| __func__, state->mode); |
| break; |
| } |
| } |
| |
| static int adv7842_s_routing(struct v4l2_subdev *sd, |
| u32 input, u32 output, u32 config) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| v4l2_dbg(2, debug, sd, "%s: input %d\n", __func__, input); |
| |
| switch (input) { |
| case ADV7842_SELECT_HDMI_PORT_A: |
| state->mode = ADV7842_MODE_HDMI; |
| state->vid_std_select = ADV7842_HDMI_COMP_VID_STD_HD_1250P; |
| state->hdmi_port_a = true; |
| break; |
| case ADV7842_SELECT_HDMI_PORT_B: |
| state->mode = ADV7842_MODE_HDMI; |
| state->vid_std_select = ADV7842_HDMI_COMP_VID_STD_HD_1250P; |
| state->hdmi_port_a = false; |
| break; |
| case ADV7842_SELECT_VGA_COMP: |
| state->mode = ADV7842_MODE_COMP; |
| state->vid_std_select = ADV7842_RGB_VID_STD_AUTO_GRAPH_MODE; |
| break; |
| case ADV7842_SELECT_VGA_RGB: |
| state->mode = ADV7842_MODE_RGB; |
| state->vid_std_select = ADV7842_RGB_VID_STD_AUTO_GRAPH_MODE; |
| break; |
| case ADV7842_SELECT_SDP_CVBS: |
| state->mode = ADV7842_MODE_SDP; |
| state->vid_std_select = ADV7842_SDP_VID_STD_CVBS_SD_4x1; |
| break; |
| case ADV7842_SELECT_SDP_YC: |
| state->mode = ADV7842_MODE_SDP; |
| state->vid_std_select = ADV7842_SDP_VID_STD_YC_SD4_x1; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| disable_input(sd); |
| select_input(sd, state->vid_std_select); |
| enable_input(sd); |
| |
| v4l2_subdev_notify_event(sd, &adv7842_ev_fmt); |
| |
| return 0; |
| } |
| |
| static int adv7842_enum_mbus_code(struct v4l2_subdev *sd, |
| struct v4l2_subdev_pad_config *cfg, |
| struct v4l2_subdev_mbus_code_enum *code) |
| { |
| if (code->index >= ARRAY_SIZE(adv7842_formats)) |
| return -EINVAL; |
| code->code = adv7842_formats[code->index].code; |
| return 0; |
| } |
| |
| static void adv7842_fill_format(struct adv7842_state *state, |
| struct v4l2_mbus_framefmt *format) |
| { |
| memset(format, 0, sizeof(*format)); |
| |
| format->width = state->timings.bt.width; |
| format->height = state->timings.bt.height; |
| format->field = V4L2_FIELD_NONE; |
| format->colorspace = V4L2_COLORSPACE_SRGB; |
| |
| if (state->timings.bt.flags & V4L2_DV_FL_IS_CE_VIDEO) |
| format->colorspace = (state->timings.bt.height <= 576) ? |
| V4L2_COLORSPACE_SMPTE170M : V4L2_COLORSPACE_REC709; |
| } |
| |
| /* |
| * Compute the op_ch_sel value required to obtain on the bus the component order |
| * corresponding to the selected format taking into account bus reordering |
| * applied by the board at the output of the device. |
| * |
| * The following table gives the op_ch_value from the format component order |
| * (expressed as op_ch_sel value in column) and the bus reordering (expressed as |
| * adv7842_bus_order value in row). |
| * |
| * | GBR(0) GRB(1) BGR(2) RGB(3) BRG(4) RBG(5) |
| * ----------+------------------------------------------------- |
| * RGB (NOP) | GBR GRB BGR RGB BRG RBG |
| * GRB (1-2) | BGR RGB GBR GRB RBG BRG |
| * RBG (2-3) | GRB GBR BRG RBG BGR RGB |
| * BGR (1-3) | RBG BRG RGB BGR GRB GBR |
| * BRG (ROR) | BRG RBG GRB GBR RGB BGR |
| * GBR (ROL) | RGB BGR RBG BRG GBR GRB |
| */ |
| static unsigned int adv7842_op_ch_sel(struct adv7842_state *state) |
| { |
| #define _SEL(a, b, c, d, e, f) { \ |
| ADV7842_OP_CH_SEL_##a, ADV7842_OP_CH_SEL_##b, ADV7842_OP_CH_SEL_##c, \ |
| ADV7842_OP_CH_SEL_##d, ADV7842_OP_CH_SEL_##e, ADV7842_OP_CH_SEL_##f } |
| #define _BUS(x) [ADV7842_BUS_ORDER_##x] |
| |
| static const unsigned int op_ch_sel[6][6] = { |
| _BUS(RGB) /* NOP */ = _SEL(GBR, GRB, BGR, RGB, BRG, RBG), |
| _BUS(GRB) /* 1-2 */ = _SEL(BGR, RGB, GBR, GRB, RBG, BRG), |
| _BUS(RBG) /* 2-3 */ = _SEL(GRB, GBR, BRG, RBG, BGR, RGB), |
| _BUS(BGR) /* 1-3 */ = _SEL(RBG, BRG, RGB, BGR, GRB, GBR), |
| _BUS(BRG) /* ROR */ = _SEL(BRG, RBG, GRB, GBR, RGB, BGR), |
| _BUS(GBR) /* ROL */ = _SEL(RGB, BGR, RBG, BRG, GBR, GRB), |
| }; |
| |
| return op_ch_sel[state->pdata.bus_order][state->format->op_ch_sel >> 5]; |
| } |
| |
| static void adv7842_setup_format(struct adv7842_state *state) |
| { |
| struct v4l2_subdev *sd = &state->sd; |
| |
| io_write_clr_set(sd, 0x02, 0x02, |
| state->format->rgb_out ? ADV7842_RGB_OUT : 0); |
| io_write(sd, 0x03, state->format->op_format_sel | |
| state->pdata.op_format_mode_sel); |
| io_write_clr_set(sd, 0x04, 0xe0, adv7842_op_ch_sel(state)); |
| io_write_clr_set(sd, 0x05, 0x01, |
| state->format->swap_cb_cr ? ADV7842_OP_SWAP_CB_CR : 0); |
| } |
| |
| static int adv7842_get_format(struct v4l2_subdev *sd, |
| struct v4l2_subdev_pad_config *cfg, |
| struct v4l2_subdev_format *format) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| if (format->pad != ADV7842_PAD_SOURCE) |
| return -EINVAL; |
| |
| if (state->mode == ADV7842_MODE_SDP) { |
| /* SPD block */ |
| if (!(sdp_read(sd, 0x5a) & 0x01)) |
| return -EINVAL; |
| format->format.code = MEDIA_BUS_FMT_YUYV8_2X8; |
| format->format.width = 720; |
| /* valid signal */ |
| if (state->norm & V4L2_STD_525_60) |
| format->format.height = 480; |
| else |
| format->format.height = 576; |
| format->format.colorspace = V4L2_COLORSPACE_SMPTE170M; |
| return 0; |
| } |
| |
| adv7842_fill_format(state, &format->format); |
| |
| if (format->which == V4L2_SUBDEV_FORMAT_TRY) { |
| struct v4l2_mbus_framefmt *fmt; |
| |
| fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); |
| format->format.code = fmt->code; |
| } else { |
| format->format.code = state->format->code; |
| } |
| |
| return 0; |
| } |
| |
| static int adv7842_set_format(struct v4l2_subdev *sd, |
| struct v4l2_subdev_pad_config *cfg, |
| struct v4l2_subdev_format *format) |
| { |
| struct adv7842_state *state = to_state(sd); |
| const struct adv7842_format_info *info; |
| |
| if (format->pad != ADV7842_PAD_SOURCE) |
| return -EINVAL; |
| |
| if (state->mode == ADV7842_MODE_SDP) |
| return adv7842_get_format(sd, cfg, format); |
| |
| info = adv7842_format_info(state, format->format.code); |
| if (info == NULL) |
| info = adv7842_format_info(state, MEDIA_BUS_FMT_YUYV8_2X8); |
| |
| adv7842_fill_format(state, &format->format); |
| format->format.code = info->code; |
| |
| if (format->which == V4L2_SUBDEV_FORMAT_TRY) { |
| struct v4l2_mbus_framefmt *fmt; |
| |
| fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); |
| fmt->code = format->format.code; |
| } else { |
| state->format = info; |
| adv7842_setup_format(state); |
| } |
| |
| return 0; |
| } |
| |
| static void adv7842_irq_enable(struct v4l2_subdev *sd, bool enable) |
| { |
| if (enable) { |
| /* Enable SSPD, STDI and CP locked/unlocked interrupts */ |
| io_write(sd, 0x46, 0x9c); |
| /* ESDP_50HZ_DET interrupt */ |
| io_write(sd, 0x5a, 0x10); |
| /* Enable CABLE_DET_A/B_ST (+5v) interrupt */ |
| io_write(sd, 0x73, 0x03); |
| /* Enable V_LOCKED and DE_REGEN_LCK interrupts */ |
| io_write(sd, 0x78, 0x03); |
| /* Enable SDP Standard Detection Change and SDP Video Detected */ |
| io_write(sd, 0xa0, 0x09); |
| /* Enable HDMI_MODE interrupt */ |
| io_write(sd, 0x69, 0x08); |
| } else { |
| io_write(sd, 0x46, 0x0); |
| io_write(sd, 0x5a, 0x0); |
| io_write(sd, 0x73, 0x0); |
| io_write(sd, 0x78, 0x0); |
| io_write(sd, 0xa0, 0x0); |
| io_write(sd, 0x69, 0x0); |
| } |
| } |
| |
| static int adv7842_isr(struct v4l2_subdev *sd, u32 status, bool *handled) |
| { |
| struct adv7842_state *state = to_state(sd); |
| u8 fmt_change_cp, fmt_change_digital, fmt_change_sdp; |
| u8 irq_status[6]; |
| |
| adv7842_irq_enable(sd, false); |
| |
| /* read status */ |
| irq_status[0] = io_read(sd, 0x43); |
| irq_status[1] = io_read(sd, 0x57); |
| irq_status[2] = io_read(sd, 0x70); |
| irq_status[3] = io_read(sd, 0x75); |
| irq_status[4] = io_read(sd, 0x9d); |
| irq_status[5] = io_read(sd, 0x66); |
| |
| /* and clear */ |
| if (irq_status[0]) |
| io_write(sd, 0x44, irq_status[0]); |
| if (irq_status[1]) |
| io_write(sd, 0x58, irq_status[1]); |
| if (irq_status[2]) |
| io_write(sd, 0x71, irq_status[2]); |
| if (irq_status[3]) |
| io_write(sd, 0x76, irq_status[3]); |
| if (irq_status[4]) |
| io_write(sd, 0x9e, irq_status[4]); |
| if (irq_status[5]) |
| io_write(sd, 0x67, irq_status[5]); |
| |
| adv7842_irq_enable(sd, true); |
| |
| v4l2_dbg(1, debug, sd, "%s: irq %x, %x, %x, %x, %x, %x\n", __func__, |
| irq_status[0], irq_status[1], irq_status[2], |
| irq_status[3], irq_status[4], irq_status[5]); |
| |
| /* format change CP */ |
| fmt_change_cp = irq_status[0] & 0x9c; |
| |
| /* format change SDP */ |
| if (state->mode == ADV7842_MODE_SDP) |
| fmt_change_sdp = (irq_status[1] & 0x30) | (irq_status[4] & 0x09); |
| else |
| fmt_change_sdp = 0; |
| |
| /* digital format CP */ |
| if (is_digital_input(sd)) |
| fmt_change_digital = irq_status[3] & 0x03; |
| else |
| fmt_change_digital = 0; |
| |
| /* format change */ |
| if (fmt_change_cp || fmt_change_digital || fmt_change_sdp) { |
| v4l2_dbg(1, debug, sd, |
| "%s: fmt_change_cp = 0x%x, fmt_change_digital = 0x%x, fmt_change_sdp = 0x%x\n", |
| __func__, fmt_change_cp, fmt_change_digital, |
| fmt_change_sdp); |
| v4l2_subdev_notify_event(sd, &adv7842_ev_fmt); |
| if (handled) |
| *handled = true; |
| } |
| |
| /* HDMI/DVI mode */ |
| if (irq_status[5] & 0x08) { |
| v4l2_dbg(1, debug, sd, "%s: irq %s mode\n", __func__, |
| (io_read(sd, 0x65) & 0x08) ? "HDMI" : "DVI"); |
| set_rgb_quantization_range(sd); |
| if (handled) |
| *handled = true; |
| } |
| |
| /* tx 5v detect */ |
| if (irq_status[2] & 0x3) { |
| v4l2_dbg(1, debug, sd, "%s: irq tx_5v\n", __func__); |
| adv7842_s_detect_tx_5v_ctrl(sd); |
| if (handled) |
| *handled = true; |
| } |
| return 0; |
| } |
| |
| static int adv7842_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) |
| { |
| struct adv7842_state *state = to_state(sd); |
| u8 *data = NULL; |
| |
| memset(edid->reserved, 0, sizeof(edid->reserved)); |
| |
| switch (edid->pad) { |
| case ADV7842_EDID_PORT_A: |
| case ADV7842_EDID_PORT_B: |
| if (state->hdmi_edid.present & (0x04 << edid->pad)) |
| data = state->hdmi_edid.edid; |
| break; |
| case ADV7842_EDID_PORT_VGA: |
| if (state->vga_edid.present) |
| data = state->vga_edid.edid; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| if (edid->start_block == 0 && edid->blocks == 0) { |
| edid->blocks = data ? 2 : 0; |
| return 0; |
| } |
| |
| if (!data) |
| return -ENODATA; |
| |
| if (edid->start_block >= 2) |
| return -EINVAL; |
| |
| if (edid->start_block + edid->blocks > 2) |
| edid->blocks = 2 - edid->start_block; |
| |
| memcpy(edid->edid, data + edid->start_block * 128, edid->blocks * 128); |
| |
| return 0; |
| } |
| |
| static int adv7842_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *e) |
| { |
| struct adv7842_state *state = to_state(sd); |
| int err = 0; |
| |
| memset(e->reserved, 0, sizeof(e->reserved)); |
| |
| if (e->pad > ADV7842_EDID_PORT_VGA) |
| return -EINVAL; |
| if (e->start_block != 0) |
| return -EINVAL; |
| if (e->blocks > 2) { |
| e->blocks = 2; |
| return -E2BIG; |
| } |
| |
| /* todo, per edid */ |
| state->aspect_ratio = v4l2_calc_aspect_ratio(e->edid[0x15], |
| e->edid[0x16]); |
| |
| switch (e->pad) { |
| case ADV7842_EDID_PORT_VGA: |
| memset(&state->vga_edid.edid, 0, 256); |
| state->vga_edid.present = e->blocks ? 0x1 : 0x0; |
| memcpy(&state->vga_edid.edid, e->edid, 128 * e->blocks); |
| err = edid_write_vga_segment(sd); |
| break; |
| case ADV7842_EDID_PORT_A: |
| case ADV7842_EDID_PORT_B: |
| memset(&state->hdmi_edid.edid, 0, 256); |
| if (e->blocks) |
| state->hdmi_edid.present |= 0x04 << e->pad; |
| else |
| state->hdmi_edid.present &= ~(0x04 << e->pad); |
| memcpy(&state->hdmi_edid.edid, e->edid, 128 * e->blocks); |
| err = edid_write_hdmi_segment(sd, e->pad); |
| break; |
| default: |
| return -EINVAL; |
| } |
| if (err < 0) |
| v4l2_err(sd, "error %d writing edid on port %d\n", err, e->pad); |
| return err; |
| } |
| |
| struct adv7842_cfg_read_infoframe { |
| const char *desc; |
| u8 present_mask; |
| u8 head_addr; |
| u8 payload_addr; |
| }; |
| |
| static void log_infoframe(struct v4l2_subdev *sd, struct adv7842_cfg_read_infoframe *cri) |
| { |
| int i; |
| u8 buffer[32]; |
| union hdmi_infoframe frame; |
| u8 len; |
| struct i2c_client *client = v4l2_get_subdevdata(sd); |
| struct device *dev = &client->dev; |
| |
| if (!(io_read(sd, 0x60) & cri->present_mask)) { |
| v4l2_info(sd, "%s infoframe not received\n", cri->desc); |
| return; |
| } |
| |
| for (i = 0; i < 3; i++) |
| buffer[i] = infoframe_read(sd, cri->head_addr + i); |
| |
| len = buffer[2] + 1; |
| |
| if (len + 3 > sizeof(buffer)) { |
| v4l2_err(sd, "%s: invalid %s infoframe length %d\n", __func__, cri->desc, len); |
| return; |
| } |
| |
| for (i = 0; i < len; i++) |
| buffer[i + 3] = infoframe_read(sd, cri->payload_addr + i); |
| |
| if (hdmi_infoframe_unpack(&frame, buffer) < 0) { |
| v4l2_err(sd, "%s: unpack of %s infoframe failed\n", __func__, cri->desc); |
| return; |
| } |
| |
| hdmi_infoframe_log(KERN_INFO, dev, &frame); |
| } |
| |
| static void adv7842_log_infoframes(struct v4l2_subdev *sd) |
| { |
| int i; |
| struct adv7842_cfg_read_infoframe cri[] = { |
| { "AVI", 0x01, 0xe0, 0x00 }, |
| { "Audio", 0x02, 0xe3, 0x1c }, |
| { "SDP", 0x04, 0xe6, 0x2a }, |
| { "Vendor", 0x10, 0xec, 0x54 } |
| }; |
| |
| if (!(hdmi_read(sd, 0x05) & 0x80)) { |
| v4l2_info(sd, "receive DVI-D signal, no infoframes\n"); |
| return; |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(cri); i++) |
| log_infoframe(sd, &cri[i]); |
| } |
| |
| static const char * const prim_mode_txt[] = { |
| "SDP", |
| "Component", |
| "Graphics", |
| "Reserved", |
| "CVBS & HDMI AUDIO", |
| "HDMI-Comp", |
| "HDMI-GR", |
| "Reserved", |
| "Reserved", |
| "Reserved", |
| "Reserved", |
| "Reserved", |
| "Reserved", |
| "Reserved", |
| "Reserved", |
| "Reserved", |
| }; |
| |
| static int adv7842_sdp_log_status(struct v4l2_subdev *sd) |
| { |
| /* SDP (Standard definition processor) block */ |
| u8 sdp_signal_detected = sdp_read(sd, 0x5A) & 0x01; |
| |
| v4l2_info(sd, "Chip powered %s\n", no_power(sd) ? "off" : "on"); |
| v4l2_info(sd, "Prim-mode = 0x%x, video std = 0x%x\n", |
| io_read(sd, 0x01) & 0x0f, io_read(sd, 0x00) & 0x3f); |
| |
| v4l2_info(sd, "SDP: free run: %s\n", |
| (sdp_read(sd, 0x56) & 0x01) ? "on" : "off"); |
| v4l2_info(sd, "SDP: %s\n", sdp_signal_detected ? |
| "valid SD/PR signal detected" : "invalid/no signal"); |
| if (sdp_signal_detected) { |
| static const char * const sdp_std_txt[] = { |
| "NTSC-M/J", |
| "1?", |
| "NTSC-443", |
| "60HzSECAM", |
| "PAL-M", |
| "5?", |
| "PAL-60", |
| "7?", "8?", "9?", "a?", "b?", |
| "PAL-CombN", |
| "d?", |
| "PAL-BGHID", |
| "SECAM" |
| }; |
| v4l2_info(sd, "SDP: standard %s\n", |
| sdp_std_txt[sdp_read(sd, 0x52) & 0x0f]); |
| v4l2_info(sd, "SDP: %s\n", |
| (sdp_read(sd, 0x59) & 0x08) ? "50Hz" : "60Hz"); |
| v4l2_info(sd, "SDP: %s\n", |
| (sdp_read(sd, 0x57) & 0x08) ? "Interlaced" : "Progressive"); |
| v4l2_info(sd, "SDP: deinterlacer %s\n", |
| (sdp_read(sd, 0x12) & 0x08) ? "enabled" : "disabled"); |
| v4l2_info(sd, "SDP: csc %s mode\n", |
| (sdp_io_read(sd, 0xe0) & 0x40) ? "auto" : "manual"); |
| } |
| return 0; |
| } |
| |
| static int adv7842_cp_log_status(struct v4l2_subdev *sd) |
| { |
| /* CP block */ |
| struct adv7842_state *state = to_state(sd); |
| struct v4l2_dv_timings timings; |
| u8 reg_io_0x02 = io_read(sd, 0x02); |
| u8 reg_io_0x21 = io_read(sd, 0x21); |
| u8 reg_rep_0x77 = rep_read(sd, 0x77); |
| u8 reg_rep_0x7d = rep_read(sd, 0x7d); |
| bool audio_pll_locked = hdmi_read(sd, 0x04) & 0x01; |
| bool audio_sample_packet_detect = hdmi_read(sd, 0x18) & 0x01; |
| bool audio_mute = io_read(sd, 0x65) & 0x40; |
| |
| static const char * const csc_coeff_sel_rb[16] = { |
| "bypassed", "YPbPr601 -> RGB", "reserved", "YPbPr709 -> RGB", |
| "reserved", "RGB -> YPbPr601", "reserved", "RGB -> YPbPr709", |
| "reserved", "YPbPr709 -> YPbPr601", "YPbPr601 -> YPbPr709", |
| "reserved", "reserved", "reserved", "reserved", "manual" |
| }; |
| static const char * const 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", |
| "YCbCr Bt.601 (0-255)", "YCbCr Bt.709 (0-255)", |
| "invalid", "invalid", "invalid", "invalid", "invalid", |
| "invalid", "invalid", "automatic" |
| }; |
| static const char * const rgb_quantization_range_txt[] = { |
| "Automatic", |
| "RGB limited range (16-235)", |
| "RGB full range (0-255)", |
| }; |
| static const char * const deep_color_mode_txt[4] = { |
| "8-bits per channel", |
| "10-bits per channel", |
| "12-bits per channel", |
| "16-bits per channel (not supported)" |
| }; |
| |
| v4l2_info(sd, "-----Chip status-----\n"); |
| v4l2_info(sd, "Chip power: %s\n", no_power(sd) ? "off" : "on"); |
| v4l2_info(sd, "HDMI/DVI-D port selected: %s\n", |
| state->hdmi_port_a ? "A" : "B"); |
| v4l2_info(sd, "EDID A %s, B %s\n", |
| ((reg_rep_0x7d & 0x04) && (reg_rep_0x77 & 0x04)) ? |
| "enabled" : "disabled", |
| ((reg_rep_0x7d & 0x08) && (reg_rep_0x77 & 0x08)) ? |
| "enabled" : "disabled"); |
| v4l2_info(sd, "HPD A %s, B %s\n", |
| reg_io_0x21 & 0x02 ? "enabled" : "disabled", |
| reg_io_0x21 & 0x01 ? "enabled" : "disabled"); |
| v4l2_info(sd, "CEC %s\n", !!(cec_read(sd, 0x2a) & 0x01) ? |
| "enabled" : "disabled"); |
| |
| v4l2_info(sd, "-----Signal status-----\n"); |
| if (state->hdmi_port_a) { |
| v4l2_info(sd, "Cable detected (+5V power): %s\n", |
| io_read(sd, 0x6f) & 0x02 ? "true" : "false"); |
| v4l2_info(sd, "TMDS signal detected: %s\n", |
| (io_read(sd, 0x6a) & 0x02) ? "true" : "false"); |
| v4l2_info(sd, "TMDS signal locked: %s\n", |
| (io_read(sd, 0x6a) & 0x20) ? "true" : "false"); |
| } else { |
| v4l2_info(sd, "Cable detected (+5V power):%s\n", |
| io_read(sd, 0x6f) & 0x01 ? "true" : "false"); |
| v4l2_info(sd, "TMDS signal detected: %s\n", |
| (io_read(sd, 0x6a) & 0x01) ? "true" : "false"); |
| v4l2_info(sd, "TMDS signal locked: %s\n", |
| (io_read(sd, 0x6a) & 0x10) ? "true" : "false"); |
| } |
| v4l2_info(sd, "CP free run: %s\n", |
| (!!(cp_read(sd, 0xff) & 0x10) ? "on" : "off")); |
| v4l2_info(sd, "Prim-mode = 0x%x, video std = 0x%x, v_freq = 0x%x\n", |
| io_read(sd, 0x01) & 0x0f, io_read(sd, 0x00) & 0x3f, |
| (io_read(sd, 0x01) & 0x70) >> 4); |
| |
| v4l2_info(sd, "-----Video Timings-----\n"); |
| if (no_cp_signal(sd)) { |
| v4l2_info(sd, "STDI: not locked\n"); |
| } else { |
| u32 bl = ((cp_read(sd, 0xb1) & 0x3f) << 8) | cp_read(sd, 0xb2); |
| u32 lcf = ((cp_read(sd, 0xb3) & 0x7) << 8) | cp_read(sd, 0xb4); |
| u32 lcvs = cp_read(sd, 0xb3) >> 3; |
| u32 fcl = ((cp_read(sd, 0xb8) & 0x1f) << 8) | cp_read(sd, 0xb9); |
| char hs_pol = ((cp_read(sd, 0xb5) & 0x10) ? |
| ((cp_read(sd, 0xb5) & 0x08) ? '+' : '-') : 'x'); |
| char vs_pol = ((cp_read(sd, 0xb5) & 0x40) ? |
| ((cp_read(sd, 0xb5) & 0x20) ? '+' : '-') : 'x'); |
| v4l2_info(sd, |
| "STDI: lcf (frame height - 1) = %d, bl = %d, lcvs (vsync) = %d, fcl = %d, %s, %chsync, %cvsync\n", |
| lcf, bl, lcvs, fcl, |
| (cp_read(sd, 0xb1) & 0x40) ? |
| "interlaced" : "progressive", |
| hs_pol, vs_pol); |
| } |
| if (adv7842_query_dv_timings(sd, &timings)) |
| v4l2_info(sd, "No video detected\n"); |
| else |
| v4l2_print_dv_timings(sd->name, "Detected format: ", |
| &timings, true); |
| v4l2_print_dv_timings(sd->name, "Configured format: ", |
| &state->timings, true); |
| |
| if (no_cp_signal(sd)) |
| return 0; |
| |
| v4l2_info(sd, "-----Color space-----\n"); |
| v4l2_info(sd, "RGB quantization range ctrl: %s\n", |
| rgb_quantization_range_txt[state->rgb_quantization_range]); |
| v4l2_info(sd, "Input color space: %s\n", |
| input_color_space_txt[reg_io_0x02 >> 4]); |
| v4l2_info(sd, "Output color space: %s %s, saturator %s\n", |
| (reg_io_0x02 & 0x02) ? "RGB" : "YCbCr", |
| (reg_io_0x02 & 0x04) ? "(16-235)" : "(0-255)", |
| ((reg_io_0x02 & 0x04) ^ (reg_io_0x02 & 0x01)) ? |
| "enabled" : "disabled"); |
| v4l2_info(sd, "Color space conversion: %s\n", |
| csc_coeff_sel_rb[cp_read(sd, 0xf4) >> 4]); |
| |
| 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, "HDCP keys read: %s%s\n", |
| (hdmi_read(sd, 0x04) & 0x20) ? "yes" : "no", |
| (hdmi_read(sd, 0x04) & 0x10) ? "ERROR" : ""); |
| if (!is_hdmi(sd)) |
| return 0; |
| |
| v4l2_info(sd, "Audio: pll %s, samples %s, %s\n", |
| audio_pll_locked ? "locked" : "not locked", |
| audio_sample_packet_detect ? "detected" : "not detected", |
| audio_mute ? "muted" : "enabled"); |
| if (audio_pll_locked && audio_sample_packet_detect) { |
| v4l2_info(sd, "Audio format: %s\n", |
| (hdmi_read(sd, 0x07) & 0x40) ? "multi-channel" : "stereo"); |
| } |
| v4l2_info(sd, "Audio CTS: %u\n", (hdmi_read(sd, 0x5b) << 12) + |
| (hdmi_read(sd, 0x5c) << 8) + |
| (hdmi_read(sd, 0x5d) & 0xf0)); |
| v4l2_info(sd, "Audio N: %u\n", ((hdmi_read(sd, 0x5d) & 0x0f) << 16) + |
| (hdmi_read(sd, 0x5e) << 8) + |
| hdmi_read(sd, 0x5f)); |
| v4l2_info(sd, "AV Mute: %s\n", |
| (hdmi_read(sd, 0x04) & 0x40) ? "on" : "off"); |
| v4l2_info(sd, "Deep color mode: %s\n", |
| deep_color_mode_txt[hdmi_read(sd, 0x0b) >> 6]); |
| |
| adv7842_log_infoframes(sd); |
| |
| return 0; |
| } |
| |
| static int adv7842_log_status(struct v4l2_subdev *sd) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| if (state->mode == ADV7842_MODE_SDP) |
| return adv7842_sdp_log_status(sd); |
| return adv7842_cp_log_status(sd); |
| } |
| |
| static int adv7842_querystd(struct v4l2_subdev *sd, v4l2_std_id *std) |
| { |
| struct adv7842_state *state = to_state(sd); |
| |
| v4l2_dbg(1, debug, sd, "%s:\n", __func__); |
| |
| if (state->mode != ADV7842_MODE_SDP) |
| return -ENODATA; |
| |
| if (!(sdp_read(sd, 0x5A) & 0x01)) { |
| *std = 0; |
| v4l2_dbg(1, debug, sd, "%s: no valid signal\n", __func__); |
| return 0; |
| } |
| |
| switch (sdp_read(sd, 0x52) & 0x0f) { |
| case 0: |
| /* NTSC-M/J */ |
| *std &= V4L2_STD_NTSC; |
| break; |
| case 2: |
| /* NTSC-443 */ |
| *std &= V4L2_STD_NTSC_443; |
| break; |
| case 3: |
| /* 60HzSECAM */ |
| *std &= V4L2_STD_SECAM; |
| break; |
| case 4: |
| /* PAL-M */ |
| *std &= V4L2_STD_PAL_M; |
| break; |
| case 6: |
| /* PAL-60 */ |
| *std &= V4L2_STD_PAL_60; |
| break; |
| case 0xc: |
| /* PAL-CombN */ |
| *std &= V4L2_STD_PAL_Nc; |
| break; |
| case 0xe: |
| /* PAL-BGHID */ |
| *std &= V4L2_STD_PAL; |
| break; |
| case 0xf: |
| /* SECAM */ |
| *std &= V4L2_STD_SECAM; |
| break; |
| default: |
| *std &= V4L2_STD_ALL; |
| break; |
| } |
| return 0; |
| } |
| |
| static void adv7842_s_sdp_io(struct v4l2_subdev *sd, struct adv7842_sdp_io_sync_adjustment *s) |
| { |
| if (s && s->adjust) { |
| sdp_io_write(sd, 0x94, (s->hs_beg >> 8) & 0xf); |
| sdp_io_write(sd, 0x95, s->hs_beg & 0xff); |
| sdp_io_write(sd, 0x96, (s->hs_width >> 8) & 0xf); |
| sdp_io_write(sd, 0x97, s->hs_width & 0xff); |
| sdp_io_write(sd, 0x98, (s->de_beg >> 8) & 0xf); |
| sdp_io_write(sd, 0x99, s->de_beg & 0xff); |
| sdp_io_write(sd, 0x9a, (s->de_end >> 8) & 0xf); |
| sdp_io_write(sd, 0x9b, s->de_end & 0xff); |
| sdp_io_write(sd, 0xa8, s->vs_beg_o); |
| sdp_io_write(sd, 0xa9, s->vs_beg_e); |
| sdp_io_write(sd, 0xaa, s->vs_end_o); |
| sdp_io_write(sd, 0xab, s->vs_end_e); |
| sdp_io_write(sd, 0xac, s->de_v_beg_o); |
| sdp_io_write(sd, 0xad, s->de_v_beg_e); |
| sdp_io_write(sd, 0xae, s->de_v_end_o); |
| sdp_io_write(sd, 0xaf, s-> |