// SPDX-License-Identifier: GPL-2.0-only /* * Analog Devices ADV7511 HDMI Transmitter Device Driver * * Copyright 2013 Cisco Systems, Inc. and/or its affiliates. All rights reserved. */ /* * This file is named adv7511-v4l2.c so it doesn't conflict with the Analog * Device ADV7511 (config fragment CONFIG_DRM_I2C_ADV7511). */ #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/gpio.h> #include <linux/workqueue.h> #include <linux/hdmi.h> #include <linux/v4l2-dv-timings.h> #include <media/v4l2-device.h> #include <media/v4l2-common.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-dv-timings.h> #include <media/i2c/adv7511.h> #include <media/cec.h> static int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "debug level (0-2)"); MODULE_DESCRIPTION("Analog Devices ADV7511 HDMI Transmitter Device Driver"); MODULE_AUTHOR("Hans Verkuil"); MODULE_LICENSE("GPL v2"); #define MASK_ADV7511_EDID_RDY_INT 0x04 #define MASK_ADV7511_MSEN_INT 0x40 #define MASK_ADV7511_HPD_INT 0x80 #define MASK_ADV7511_HPD_DETECT 0x40 #define MASK_ADV7511_MSEN_DETECT 0x20 #define MASK_ADV7511_EDID_RDY 0x10 #define EDID_MAX_RETRIES (8) #define EDID_DELAY 250 #define EDID_MAX_SEGM 8 #define ADV7511_MAX_WIDTH 1920 #define ADV7511_MAX_HEIGHT 1200 #define ADV7511_MIN_PIXELCLOCK 20000000 #define ADV7511_MAX_PIXELCLOCK 225000000 #define ADV7511_MAX_ADDRS (3) /* ********************************************************************** * * Arrays with configuration parameters for the ADV7511 * ********************************************************************** */ struct i2c_reg_value { <------>unsigned char reg; <------>unsigned char value; }; struct adv7511_state_edid { <------>/* total number of blocks */ <------>u32 blocks; <------>/* Number of segments read */ <------>u32 segments; <------>u8 data[EDID_MAX_SEGM * 256]; <------>/* Number of EDID read retries left */ <------>unsigned read_retries; <------>bool complete; }; struct adv7511_state { <------>struct adv7511_platform_data pdata; <------>struct v4l2_subdev sd; <------>struct media_pad pad; <------>struct v4l2_ctrl_handler hdl; <------>int chip_revision; <------>u8 i2c_edid_addr; <------>u8 i2c_pktmem_addr; <------>u8 i2c_cec_addr; <------>struct i2c_client *i2c_cec; <------>struct cec_adapter *cec_adap; <------>u8 cec_addr[ADV7511_MAX_ADDRS]; <------>u8 cec_valid_addrs; <------>bool cec_enabled_adap; <------>/* Is the adv7511 powered on? */ <------>bool power_on; <------>/* Did we receive hotplug and rx-sense signals? */ <------>bool have_monitor; <------>bool enabled_irq; <------>/* timings from s_dv_timings */ <------>struct v4l2_dv_timings dv_timings; <------>u32 fmt_code; <------>u32 colorspace; <------>u32 ycbcr_enc; <------>u32 quantization; <------>u32 xfer_func; <------>u32 content_type; <------>/* controls */ <------>struct v4l2_ctrl *hdmi_mode_ctrl; <------>struct v4l2_ctrl *hotplug_ctrl; <------>struct v4l2_ctrl *rx_sense_ctrl; <------>struct v4l2_ctrl *have_edid0_ctrl; <------>struct v4l2_ctrl *rgb_quantization_range_ctrl; <------>struct v4l2_ctrl *content_type_ctrl; <------>struct i2c_client *i2c_edid; <------>struct i2c_client *i2c_pktmem; <------>struct adv7511_state_edid edid; <------>/* Running counter of the number of detected EDIDs (for debugging) */ <------>unsigned edid_detect_counter; <------>struct workqueue_struct *work_queue; <------>struct delayed_work edid_handler; /* work entry */ }; static void adv7511_check_monitor_present_status(struct v4l2_subdev *sd); static bool adv7511_check_edid_status(struct v4l2_subdev *sd); static void adv7511_setup(struct v4l2_subdev *sd); static int adv7511_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq); static int adv7511_s_clock_freq(struct v4l2_subdev *sd, u32 freq); static const struct v4l2_dv_timings_cap adv7511_timings_cap = { <------>.type = V4L2_DV_BT_656_1120, <------>/* keep this initialization for compatibility with GCC < 4.4.6 */ <------>.reserved = { 0 }, <------>V4L2_INIT_BT_TIMINGS(640, ADV7511_MAX_WIDTH, 350, ADV7511_MAX_HEIGHT, <------><------>ADV7511_MIN_PIXELCLOCK, ADV7511_MAX_PIXELCLOCK, <------><------>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 struct adv7511_state *get_adv7511_state(struct v4l2_subdev *sd) { <------>return container_of(sd, struct adv7511_state, sd); } static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) { <------>return &container_of(ctrl->handler, struct adv7511_state, hdl)->sd; } /* ------------------------ I2C ----------------------------------------------- */ 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 -1; } 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 -1; } static int adv7511_rd(struct v4l2_subdev *sd, u8 reg) { <------>struct i2c_client *client = v4l2_get_subdevdata(sd); <------>return adv_smbus_read_byte_data(client, reg); } static int adv7511_wr(struct v4l2_subdev *sd, u8 reg, u8 val) { <------>struct i2c_client *client = v4l2_get_subdevdata(sd); <------>int ret; <------>int i; <------>for (i = 0; i < 3; i++) { <------><------>ret = i2c_smbus_write_byte_data(client, reg, val); <------><------>if (ret == 0) <------><------><------>return 0; <------>} <------>v4l2_err(sd, "%s: i2c write error\n", __func__); <------>return ret; } /* To set specific bits in the register, a clear-mask is given (to be AND-ed), and then the value-mask (to be OR-ed). */ static inline void adv7511_wr_and_or(struct v4l2_subdev *sd, u8 reg, u8 clr_mask, u8 val_mask) { <------>adv7511_wr(sd, reg, (adv7511_rd(sd, reg) & clr_mask) | val_mask); } static int adv_smbus_read_i2c_block_data(struct i2c_client *client, <------><------><------><------><------> u8 command, unsigned length, u8 *values) { <------>union i2c_smbus_data data; <------>int ret; <------>if (length > I2C_SMBUS_BLOCK_MAX) <------><------>length = I2C_SMBUS_BLOCK_MAX; <------>data.block[0] = length; <------>ret = i2c_smbus_xfer(client->adapter, client->addr, client->flags, <------><------><------> I2C_SMBUS_READ, command, <------><------><------> I2C_SMBUS_I2C_BLOCK_DATA, &data); <------>memcpy(values, data.block + 1, length); <------>return ret; } static void adv7511_edid_rd(struct v4l2_subdev *sd, uint16_t len, uint8_t *buf) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>int i; <------>int err = 0; <------>v4l2_dbg(1, debug, sd, "%s:\n", __func__); <------>for (i = 0; !err && i < len; i += I2C_SMBUS_BLOCK_MAX) <------><------>err = adv_smbus_read_i2c_block_data(state->i2c_edid, i, <------><------><------><------><------><------> I2C_SMBUS_BLOCK_MAX, buf + i); <------>if (err) <------><------>v4l2_err(sd, "%s: i2c read error\n", __func__); } static inline int adv7511_cec_read(struct v4l2_subdev *sd, u8 reg) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>return i2c_smbus_read_byte_data(state->i2c_cec, reg); } static int adv7511_cec_write(struct v4l2_subdev *sd, u8 reg, u8 val) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>int ret; <------>int i; <------>for (i = 0; i < 3; i++) { <------><------>ret = i2c_smbus_write_byte_data(state->i2c_cec, reg, val); <------><------>if (ret == 0) <------><------><------>return 0; <------>} <------>v4l2_err(sd, "%s: I2C Write Problem\n", __func__); <------>return ret; } static inline int adv7511_cec_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, <------><------><------><------> u8 val) { <------>return adv7511_cec_write(sd, reg, (adv7511_cec_read(sd, reg) & mask) | val); } static int adv7511_pktmem_rd(struct v4l2_subdev *sd, u8 reg) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>return adv_smbus_read_byte_data(state->i2c_pktmem, reg); } static int adv7511_pktmem_wr(struct v4l2_subdev *sd, u8 reg, u8 val) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>int ret; <------>int i; <------>for (i = 0; i < 3; i++) { <------><------>ret = i2c_smbus_write_byte_data(state->i2c_pktmem, reg, val); <------><------>if (ret == 0) <------><------><------>return 0; <------>} <------>v4l2_err(sd, "%s: i2c write error\n", __func__); <------>return ret; } /* To set specific bits in the register, a clear-mask is given (to be AND-ed), and then the value-mask (to be OR-ed). */ static inline void adv7511_pktmem_wr_and_or(struct v4l2_subdev *sd, u8 reg, u8 clr_mask, u8 val_mask) { <------>adv7511_pktmem_wr(sd, reg, (adv7511_pktmem_rd(sd, reg) & clr_mask) | val_mask); } static inline bool adv7511_have_hotplug(struct v4l2_subdev *sd) { <------>return adv7511_rd(sd, 0x42) & MASK_ADV7511_HPD_DETECT; } static inline bool adv7511_have_rx_sense(struct v4l2_subdev *sd) { <------>return adv7511_rd(sd, 0x42) & MASK_ADV7511_MSEN_DETECT; } static void adv7511_csc_conversion_mode(struct v4l2_subdev *sd, u8 mode) { <------>adv7511_wr_and_or(sd, 0x18, 0x9f, (mode & 0x3)<<5); } static void adv7511_csc_coeff(struct v4l2_subdev *sd, <------><------><------> u16 A1, u16 A2, u16 A3, u16 A4, <------><------><------> u16 B1, u16 B2, u16 B3, u16 B4, <------><------><------> u16 C1, u16 C2, u16 C3, u16 C4) { <------>/* A */ <------>adv7511_wr_and_or(sd, 0x18, 0xe0, A1>>8); <------>adv7511_wr(sd, 0x19, A1); <------>adv7511_wr_and_or(sd, 0x1A, 0xe0, A2>>8); <------>adv7511_wr(sd, 0x1B, A2); <------>adv7511_wr_and_or(sd, 0x1c, 0xe0, A3>>8); <------>adv7511_wr(sd, 0x1d, A3); <------>adv7511_wr_and_or(sd, 0x1e, 0xe0, A4>>8); <------>adv7511_wr(sd, 0x1f, A4); <------>/* B */ <------>adv7511_wr_and_or(sd, 0x20, 0xe0, B1>>8); <------>adv7511_wr(sd, 0x21, B1); <------>adv7511_wr_and_or(sd, 0x22, 0xe0, B2>>8); <------>adv7511_wr(sd, 0x23, B2); <------>adv7511_wr_and_or(sd, 0x24, 0xe0, B3>>8); <------>adv7511_wr(sd, 0x25, B3); <------>adv7511_wr_and_or(sd, 0x26, 0xe0, B4>>8); <------>adv7511_wr(sd, 0x27, B4); <------>/* C */ <------>adv7511_wr_and_or(sd, 0x28, 0xe0, C1>>8); <------>adv7511_wr(sd, 0x29, C1); <------>adv7511_wr_and_or(sd, 0x2A, 0xe0, C2>>8); <------>adv7511_wr(sd, 0x2B, C2); <------>adv7511_wr_and_or(sd, 0x2C, 0xe0, C3>>8); <------>adv7511_wr(sd, 0x2D, C3); <------>adv7511_wr_and_or(sd, 0x2E, 0xe0, C4>>8); <------>adv7511_wr(sd, 0x2F, C4); } static void adv7511_csc_rgb_full2limit(struct v4l2_subdev *sd, bool enable) { <------>if (enable) { <------><------>u8 csc_mode = 0; <------><------>adv7511_csc_conversion_mode(sd, csc_mode); <------><------>adv7511_csc_coeff(sd, <------><------><------><------> 4096-564, 0, 0, 256, <------><------><------><------> 0, 4096-564, 0, 256, <------><------><------><------> 0, 0, 4096-564, 256); <------><------>/* enable CSC */ <------><------>adv7511_wr_and_or(sd, 0x18, 0x7f, 0x80); <------><------>/* AVI infoframe: Limited range RGB (16-235) */ <------><------>adv7511_wr_and_or(sd, 0x57, 0xf3, 0x04); <------>} else { <------><------>/* disable CSC */ <------><------>adv7511_wr_and_or(sd, 0x18, 0x7f, 0x0); <------><------>/* AVI infoframe: Full range RGB (0-255) */ <------><------>adv7511_wr_and_or(sd, 0x57, 0xf3, 0x08); <------>} } static void adv7511_set_rgb_quantization_mode(struct v4l2_subdev *sd, struct v4l2_ctrl *ctrl) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>/* Only makes sense for RGB formats */ <------>if (state->fmt_code != MEDIA_BUS_FMT_RGB888_1X24) { <------><------>/* so just keep quantization */ <------><------>adv7511_csc_rgb_full2limit(sd, false); <------><------>return; <------>} <------>switch (ctrl->val) { <------>case V4L2_DV_RGB_RANGE_AUTO: <------><------>/* automatic */ <------><------>if (state->dv_timings.bt.flags & V4L2_DV_FL_IS_CE_VIDEO) { <------><------><------>/* CE format, RGB limited range (16-235) */ <------><------><------>adv7511_csc_rgb_full2limit(sd, true); <------><------>} else { <------><------><------>/* not CE format, RGB full range (0-255) */ <------><------><------>adv7511_csc_rgb_full2limit(sd, false); <------><------>} <------><------>break; <------>case V4L2_DV_RGB_RANGE_LIMITED: <------><------>/* RGB limited range (16-235) */ <------><------>adv7511_csc_rgb_full2limit(sd, true); <------><------>break; <------>case V4L2_DV_RGB_RANGE_FULL: <------><------>/* RGB full range (0-255) */ <------><------>adv7511_csc_rgb_full2limit(sd, false); <------><------>break; <------>} } /* ------------------------------ CTRL OPS ------------------------------ */ static int adv7511_s_ctrl(struct v4l2_ctrl *ctrl) { <------>struct v4l2_subdev *sd = to_sd(ctrl); <------>struct adv7511_state *state = get_adv7511_state(sd); <------>v4l2_dbg(1, debug, sd, "%s: ctrl id: %d, ctrl->val %d\n", __func__, ctrl->id, ctrl->val); <------>if (state->hdmi_mode_ctrl == ctrl) { <------><------>/* Set HDMI or DVI-D */ <------><------>adv7511_wr_and_or(sd, 0xaf, 0xfd, ctrl->val == V4L2_DV_TX_MODE_HDMI ? 0x02 : 0x00); <------><------>return 0; <------>} <------>if (state->rgb_quantization_range_ctrl == ctrl) { <------><------>adv7511_set_rgb_quantization_mode(sd, ctrl); <------><------>return 0; <------>} <------>if (state->content_type_ctrl == ctrl) { <------><------>u8 itc, cn; <------><------>state->content_type = ctrl->val; <------><------>itc = state->content_type != V4L2_DV_IT_CONTENT_TYPE_NO_ITC; <------><------>cn = itc ? state->content_type : V4L2_DV_IT_CONTENT_TYPE_GRAPHICS; <------><------>adv7511_wr_and_or(sd, 0x57, 0x7f, itc << 7); <------><------>adv7511_wr_and_or(sd, 0x59, 0xcf, cn << 4); <------><------>return 0; <------>} <------>return -EINVAL; } static const struct v4l2_ctrl_ops adv7511_ctrl_ops = { <------>.s_ctrl = adv7511_s_ctrl, }; /* ---------------------------- CORE OPS ------------------------------------------- */ #ifdef CONFIG_VIDEO_ADV_DEBUG static void adv7511_inv_register(struct v4l2_subdev *sd) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>v4l2_info(sd, "0x000-0x0ff: Main Map\n"); <------>if (state->i2c_cec) <------><------>v4l2_info(sd, "0x100-0x1ff: CEC Map\n"); } static int adv7511_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>reg->size = 1; <------>switch (reg->reg >> 8) { <------>case 0: <------><------>reg->val = adv7511_rd(sd, reg->reg & 0xff); <------><------>break; <------>case 1: <------><------>if (state->i2c_cec) { <------><------><------>reg->val = adv7511_cec_read(sd, reg->reg & 0xff); <------><------><------>break; <------><------>} <------><------>fallthrough; <------>default: <------><------>v4l2_info(sd, "Register %03llx not supported\n", reg->reg); <------><------>adv7511_inv_register(sd); <------><------>break; <------>} <------>return 0; } static int adv7511_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>switch (reg->reg >> 8) { <------>case 0: <------><------>adv7511_wr(sd, reg->reg & 0xff, reg->val & 0xff); <------><------>break; <------>case 1: <------><------>if (state->i2c_cec) { <------><------><------>adv7511_cec_write(sd, reg->reg & 0xff, reg->val & 0xff); <------><------><------>break; <------><------>} <------><------>fallthrough; <------>default: <------><------>v4l2_info(sd, "Register %03llx not supported\n", reg->reg); <------><------>adv7511_inv_register(sd); <------><------>break; <------>} <------>return 0; } #endif struct adv7511_cfg_read_infoframe { <------>const char *desc; <------>u8 present_reg; <------>u8 present_mask; <------>u8 header[3]; <------>u16 payload_addr; }; static u8 hdmi_infoframe_checksum(u8 *ptr, size_t size) { <------>u8 csum = 0; <------>size_t i; <------>/* compute checksum */ <------>for (i = 0; i < size; i++) <------><------>csum += ptr[i]; <------>return 256 - csum; } static void log_infoframe(struct v4l2_subdev *sd, const struct adv7511_cfg_read_infoframe *cri) { <------>struct i2c_client *client = v4l2_get_subdevdata(sd); <------>struct device *dev = &client->dev; <------>union hdmi_infoframe frame; <------>u8 buffer[32]; <------>u8 len; <------>int i; <------>if (!(adv7511_rd(sd, cri->present_reg) & cri->present_mask)) { <------><------>v4l2_info(sd, "%s infoframe not transmitted\n", cri->desc); <------><------>return; <------>} <------>memcpy(buffer, cri->header, sizeof(cri->header)); <------>len = buffer[2]; <------>if (len + 4 > sizeof(buffer)) { <------><------>v4l2_err(sd, "%s: invalid %s infoframe length %d\n", __func__, cri->desc, len); <------><------>return; <------>} <------>if (cri->payload_addr >= 0x100) { <------><------>for (i = 0; i < len; i++) <------><------><------>buffer[i + 4] = adv7511_pktmem_rd(sd, cri->payload_addr + i - 0x100); <------>} else { <------><------>for (i = 0; i < len; i++) <------><------><------>buffer[i + 4] = adv7511_rd(sd, cri->payload_addr + i); <------>} <------>buffer[3] = 0; <------>buffer[3] = hdmi_infoframe_checksum(buffer, len + 4); <------>if (hdmi_infoframe_unpack(&frame, buffer, len + 4) < 0) { <------><------>v4l2_err(sd, "%s: unpack of %s infoframe failed\n", __func__, cri->desc); <------><------>return; <------>} <------>hdmi_infoframe_log(KERN_INFO, dev, &frame); } static void adv7511_log_infoframes(struct v4l2_subdev *sd) { <------>static const struct adv7511_cfg_read_infoframe cri[] = { <------><------>{ "AVI", 0x44, 0x10, { 0x82, 2, 13 }, 0x55 }, <------><------>{ "Audio", 0x44, 0x08, { 0x84, 1, 10 }, 0x73 }, <------><------>{ "SDP", 0x40, 0x40, { 0x83, 1, 25 }, 0x103 }, <------>}; <------>int i; <------>for (i = 0; i < ARRAY_SIZE(cri); i++) <------><------>log_infoframe(sd, &cri[i]); } static int adv7511_log_status(struct v4l2_subdev *sd) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>struct adv7511_state_edid *edid = &state->edid; <------>int i; <------>static const char * const states[] = { <------><------>"in reset", <------><------>"reading EDID", <------><------>"idle", <------><------>"initializing HDCP", <------><------>"HDCP enabled", <------><------>"initializing HDCP repeater", <------><------>"6", "7", "8", "9", "A", "B", "C", "D", "E", "F" <------>}; <------>static const char * const errors[] = { <------><------>"no error", <------><------>"bad receiver BKSV", <------><------>"Ri mismatch", <------><------>"Pj mismatch", <------><------>"i2c error", <------><------>"timed out", <------><------>"max repeater cascade exceeded", <------><------>"hash check failed", <------><------>"too many devices", <------><------>"9", "A", "B", "C", "D", "E", "F" <------>}; <------>v4l2_info(sd, "power %s\n", state->power_on ? "on" : "off"); <------>v4l2_info(sd, "%s hotplug, %s Rx Sense, %s EDID (%d block(s))\n", <------><------> (adv7511_rd(sd, 0x42) & MASK_ADV7511_HPD_DETECT) ? "detected" : "no", <------><------> (adv7511_rd(sd, 0x42) & MASK_ADV7511_MSEN_DETECT) ? "detected" : "no", <------><------> edid->segments ? "found" : "no", <------><------> edid->blocks); <------>v4l2_info(sd, "%s output %s\n", <------><------> (adv7511_rd(sd, 0xaf) & 0x02) ? <------><------> "HDMI" : "DVI-D", <------><------> (adv7511_rd(sd, 0xa1) & 0x3c) ? <------><------> "disabled" : "enabled"); <------>v4l2_info(sd, "state: %s, error: %s, detect count: %u, msk/irq: %02x/%02x\n", <------><------><------> states[adv7511_rd(sd, 0xc8) & 0xf], <------><------><------> errors[adv7511_rd(sd, 0xc8) >> 4], state->edid_detect_counter, <------><------><------> adv7511_rd(sd, 0x94), adv7511_rd(sd, 0x96)); <------>v4l2_info(sd, "RGB quantization: %s range\n", adv7511_rd(sd, 0x18) & 0x80 ? "limited" : "full"); <------>if (adv7511_rd(sd, 0xaf) & 0x02) { <------><------>/* HDMI only */ <------><------>u8 manual_cts = adv7511_rd(sd, 0x0a) & 0x80; <------><------>u32 N = (adv7511_rd(sd, 0x01) & 0xf) << 16 | <------><------><------>adv7511_rd(sd, 0x02) << 8 | <------><------><------>adv7511_rd(sd, 0x03); <------><------>u8 vic_detect = adv7511_rd(sd, 0x3e) >> 2; <------><------>u8 vic_sent = adv7511_rd(sd, 0x3d) & 0x3f; <------><------>u32 CTS; <------><------>if (manual_cts) <------><------><------>CTS = (adv7511_rd(sd, 0x07) & 0xf) << 16 | <------><------><------> adv7511_rd(sd, 0x08) << 8 | <------><------><------> adv7511_rd(sd, 0x09); <------><------>else <------><------><------>CTS = (adv7511_rd(sd, 0x04) & 0xf) << 16 | <------><------><------> adv7511_rd(sd, 0x05) << 8 | <------><------><------> adv7511_rd(sd, 0x06); <------><------>v4l2_info(sd, "CTS %s mode: N %d, CTS %d\n", <------><------><------> manual_cts ? "manual" : "automatic", N, CTS); <------><------>v4l2_info(sd, "VIC: detected %d, sent %d\n", <------><------><------> vic_detect, vic_sent); <------><------>adv7511_log_infoframes(sd); <------>} <------>if (state->dv_timings.type == V4L2_DV_BT_656_1120) <------><------>v4l2_print_dv_timings(sd->name, "timings: ", <------><------><------><------>&state->dv_timings, false); <------>else <------><------>v4l2_info(sd, "no timings set\n"); <------>v4l2_info(sd, "i2c edid addr: 0x%x\n", state->i2c_edid_addr); <------>if (state->i2c_cec == NULL) <------><------>return 0; <------>v4l2_info(sd, "i2c cec addr: 0x%x\n", state->i2c_cec_addr); <------>v4l2_info(sd, "CEC: %s\n", state->cec_enabled_adap ? <------><------><------>"enabled" : "disabled"); <------>if (state->cec_enabled_adap) { <------><------>for (i = 0; i < ADV7511_MAX_ADDRS; i++) { <------><------><------>bool is_valid = state->cec_valid_addrs & (1 << i); <------><------><------>if (is_valid) <------><------><------><------>v4l2_info(sd, "CEC Logical Address: 0x%x\n", <------><------><------><------><------> state->cec_addr[i]); <------><------>} <------>} <------>v4l2_info(sd, "i2c pktmem addr: 0x%x\n", state->i2c_pktmem_addr); <------>return 0; } /* Power up/down adv7511 */ static int adv7511_s_power(struct v4l2_subdev *sd, int on) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>const int retries = 20; <------>int i; <------>v4l2_dbg(1, debug, sd, "%s: power %s\n", __func__, on ? "on" : "off"); <------>state->power_on = on; <------>if (!on) { <------><------>/* Power down */ <------><------>adv7511_wr_and_or(sd, 0x41, 0xbf, 0x40); <------><------>return true; <------>} <------>/* Power up */ <------>/* The adv7511 does not always come up immediately. <------> Retry multiple times. */ <------>for (i = 0; i < retries; i++) { <------><------>adv7511_wr_and_or(sd, 0x41, 0xbf, 0x0); <------><------>if ((adv7511_rd(sd, 0x41) & 0x40) == 0) <------><------><------>break; <------><------>adv7511_wr_and_or(sd, 0x41, 0xbf, 0x40); <------><------>msleep(10); <------>} <------>if (i == retries) { <------><------>v4l2_dbg(1, debug, sd, "%s: failed to powerup the adv7511!\n", __func__); <------><------>adv7511_s_power(sd, 0); <------><------>return false; <------>} <------>if (i > 1) <------><------>v4l2_dbg(1, debug, sd, "%s: needed %d retries to powerup the adv7511\n", __func__, i); <------>/* Reserved registers that must be set */ <------>adv7511_wr(sd, 0x98, 0x03); <------>adv7511_wr_and_or(sd, 0x9a, 0xfe, 0x70); <------>adv7511_wr(sd, 0x9c, 0x30); <------>adv7511_wr_and_or(sd, 0x9d, 0xfc, 0x01); <------>adv7511_wr(sd, 0xa2, 0xa4); <------>adv7511_wr(sd, 0xa3, 0xa4); <------>adv7511_wr(sd, 0xe0, 0xd0); <------>adv7511_wr(sd, 0xf9, 0x00); <------>adv7511_wr(sd, 0x43, state->i2c_edid_addr); <------>adv7511_wr(sd, 0x45, state->i2c_pktmem_addr); <------>/* Set number of attempts to read the EDID */ <------>adv7511_wr(sd, 0xc9, 0xf); <------>return true; } #if IS_ENABLED(CONFIG_VIDEO_ADV7511_CEC) static int adv7511_cec_adap_enable(struct cec_adapter *adap, bool enable) { <------>struct adv7511_state *state = cec_get_drvdata(adap); <------>struct v4l2_subdev *sd = &state->sd; <------>if (state->i2c_cec == NULL) <------><------>return -EIO; <------>if (!state->cec_enabled_adap && enable) { <------><------>/* power up cec section */ <------><------>adv7511_cec_write_and_or(sd, 0x4e, 0xfc, 0x01); <------><------>/* legacy mode and clear all rx buffers */ <------><------>adv7511_cec_write(sd, 0x4a, 0x00); <------><------>adv7511_cec_write(sd, 0x4a, 0x07); <------><------>adv7511_cec_write_and_or(sd, 0x11, 0xfe, 0); /* initially disable tx */ <------><------>/* enabled irqs: */ <------><------>/* tx: ready */ <------><------>/* tx: arbitration lost */ <------><------>/* tx: retry timeout */ <------><------>/* rx: ready 1 */ <------><------>if (state->enabled_irq) <------><------><------>adv7511_wr_and_or(sd, 0x95, 0xc0, 0x39); <------>} else if (state->cec_enabled_adap && !enable) { <------><------>if (state->enabled_irq) <------><------><------>adv7511_wr_and_or(sd, 0x95, 0xc0, 0x00); <------><------>/* disable address mask 1-3 */ <------><------>adv7511_cec_write_and_or(sd, 0x4b, 0x8f, 0x00); <------><------>/* power down cec section */ <------><------>adv7511_cec_write_and_or(sd, 0x4e, 0xfc, 0x00); <------><------>state->cec_valid_addrs = 0; <------>} <------>state->cec_enabled_adap = enable; <------>return 0; } static int adv7511_cec_adap_log_addr(struct cec_adapter *adap, u8 addr) { <------>struct adv7511_state *state = cec_get_drvdata(adap); <------>struct v4l2_subdev *sd = &state->sd; <------>unsigned int i, free_idx = ADV7511_MAX_ADDRS; <------>if (!state->cec_enabled_adap) <------><------>return addr == CEC_LOG_ADDR_INVALID ? 0 : -EIO; <------>if (addr == CEC_LOG_ADDR_INVALID) { <------><------>adv7511_cec_write_and_or(sd, 0x4b, 0x8f, 0); <------><------>state->cec_valid_addrs = 0; <------><------>return 0; <------>} <------>for (i = 0; i < ADV7511_MAX_ADDRS; i++) { <------><------>bool is_valid = state->cec_valid_addrs & (1 << i); <------><------>if (free_idx == ADV7511_MAX_ADDRS && !is_valid) <------><------><------>free_idx = i; <------><------>if (is_valid && state->cec_addr[i] == addr) <------><------><------>return 0; <------>} <------>if (i == ADV7511_MAX_ADDRS) { <------><------>i = free_idx; <------><------>if (i == ADV7511_MAX_ADDRS) <------><------><------>return -ENXIO; <------>} <------>state->cec_addr[i] = addr; <------>state->cec_valid_addrs |= 1 << i; <------>switch (i) { <------>case 0: <------><------>/* enable address mask 0 */ <------><------>adv7511_cec_write_and_or(sd, 0x4b, 0xef, 0x10); <------><------>/* set address for mask 0 */ <------><------>adv7511_cec_write_and_or(sd, 0x4c, 0xf0, addr); <------><------>break; <------>case 1: <------><------>/* enable address mask 1 */ <------><------>adv7511_cec_write_and_or(sd, 0x4b, 0xdf, 0x20); <------><------>/* set address for mask 1 */ <------><------>adv7511_cec_write_and_or(sd, 0x4c, 0x0f, addr << 4); <------><------>break; <------>case 2: <------><------>/* enable address mask 2 */ <------><------>adv7511_cec_write_and_or(sd, 0x4b, 0xbf, 0x40); <------><------>/* set address for mask 1 */ <------><------>adv7511_cec_write_and_or(sd, 0x4d, 0xf0, addr); <------><------>break; <------>} <------>return 0; } static int adv7511_cec_adap_transmit(struct cec_adapter *adap, u8 attempts, <------><------><------><------> u32 signal_free_time, struct cec_msg *msg) { <------>struct adv7511_state *state = cec_get_drvdata(adap); <------>struct v4l2_subdev *sd = &state->sd; <------>u8 len = msg->len; <------>unsigned int i; <------>v4l2_dbg(1, debug, sd, "%s: len %d\n", __func__, len); <------>if (len > 16) { <------><------>v4l2_err(sd, "%s: len exceeded 16 (%d)\n", __func__, len); <------><------>return -EINVAL; <------>} <------>/* <------> * The number of retries is the number of attempts - 1, but retry <------> * at least once. It's not clear if a value of 0 is allowed, so <------> * let's do at least one retry. <------> */ <------>adv7511_cec_write_and_or(sd, 0x12, ~0x70, max(1, attempts - 1) << 4); <------>/* clear cec tx irq status */ <------>adv7511_wr(sd, 0x97, 0x38); <------>/* write data */ <------>for (i = 0; i < len; i++) <------><------>adv7511_cec_write(sd, i, msg->msg[i]); <------>/* set length (data + header) */ <------>adv7511_cec_write(sd, 0x10, len); <------>/* start transmit, enable tx */ <------>adv7511_cec_write(sd, 0x11, 0x01); <------>return 0; } static void adv_cec_tx_raw_status(struct v4l2_subdev *sd, u8 tx_raw_status) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>if ((adv7511_cec_read(sd, 0x11) & 0x01) == 0) { <------><------>v4l2_dbg(1, debug, sd, "%s: tx raw: tx disabled\n", __func__); <------><------>return; <------>} <------>if (tx_raw_status & 0x10) { <------><------>v4l2_dbg(1, debug, sd, <------><------><------> "%s: tx raw: arbitration lost\n", __func__); <------><------>cec_transmit_done(state->cec_adap, CEC_TX_STATUS_ARB_LOST, <------><------><------><------> 1, 0, 0, 0); <------><------>return; <------>} <------>if (tx_raw_status & 0x08) { <------><------>u8 status; <------><------>u8 nack_cnt; <------><------>u8 low_drive_cnt; <------><------>v4l2_dbg(1, debug, sd, "%s: tx raw: retry failed\n", __func__); <------><------>/* <------><------> * We set this status bit since this hardware performs <------><------> * retransmissions. <------><------> */ <------><------>status = CEC_TX_STATUS_MAX_RETRIES; <------><------>nack_cnt = adv7511_cec_read(sd, 0x14) & 0xf; <------><------>if (nack_cnt) <------><------><------>status |= CEC_TX_STATUS_NACK; <------><------>low_drive_cnt = adv7511_cec_read(sd, 0x14) >> 4; <------><------>if (low_drive_cnt) <------><------><------>status |= CEC_TX_STATUS_LOW_DRIVE; <------><------>cec_transmit_done(state->cec_adap, status, <------><------><------><------> 0, nack_cnt, low_drive_cnt, 0); <------><------>return; <------>} <------>if (tx_raw_status & 0x20) { <------><------>v4l2_dbg(1, debug, sd, "%s: tx raw: ready ok\n", __func__); <------><------>cec_transmit_done(state->cec_adap, CEC_TX_STATUS_OK, 0, 0, 0, 0); <------><------>return; <------>} } static const struct cec_adap_ops adv7511_cec_adap_ops = { <------>.adap_enable = adv7511_cec_adap_enable, <------>.adap_log_addr = adv7511_cec_adap_log_addr, <------>.adap_transmit = adv7511_cec_adap_transmit, }; #endif /* Enable interrupts */ static void adv7511_set_isr(struct v4l2_subdev *sd, bool enable) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>u8 irqs = MASK_ADV7511_HPD_INT | MASK_ADV7511_MSEN_INT; <------>u8 irqs_rd; <------>int retries = 100; <------>v4l2_dbg(2, debug, sd, "%s: %s\n", __func__, enable ? "enable" : "disable"); <------>if (state->enabled_irq == enable) <------><------>return; <------>state->enabled_irq = enable; <------>/* The datasheet says that the EDID ready interrupt should be <------> disabled if there is no hotplug. */ <------>if (!enable) <------><------>irqs = 0; <------>else if (adv7511_have_hotplug(sd)) <------><------>irqs |= MASK_ADV7511_EDID_RDY_INT; <------>/* <------> * This i2c write can fail (approx. 1 in 1000 writes). But it <------> * is essential that this register is correct, so retry it <------> * multiple times. <------> * <------> * Note that the i2c write does not report an error, but the readback <------> * clearly shows the wrong value. <------> */ <------>do { <------><------>adv7511_wr(sd, 0x94, irqs); <------><------>irqs_rd = adv7511_rd(sd, 0x94); <------>} while (retries-- && irqs_rd != irqs); <------>if (irqs_rd != irqs) <------><------>v4l2_err(sd, "Could not set interrupts: hw failure?\n"); <------>adv7511_wr_and_or(sd, 0x95, 0xc0, <------><------><------> (state->cec_enabled_adap && enable) ? 0x39 : 0x00); } /* Interrupt handler */ static int adv7511_isr(struct v4l2_subdev *sd, u32 status, bool *handled) { <------>u8 irq_status; <------>u8 cec_irq; <------>/* disable interrupts to prevent a race condition */ <------>adv7511_set_isr(sd, false); <------>irq_status = adv7511_rd(sd, 0x96); <------>cec_irq = adv7511_rd(sd, 0x97); <------>/* clear detected interrupts */ <------>adv7511_wr(sd, 0x96, irq_status); <------>adv7511_wr(sd, 0x97, cec_irq); <------>v4l2_dbg(1, debug, sd, "%s: irq 0x%x, cec-irq 0x%x\n", __func__, <------><------> irq_status, cec_irq); <------>if (irq_status & (MASK_ADV7511_HPD_INT | MASK_ADV7511_MSEN_INT)) <------><------>adv7511_check_monitor_present_status(sd); <------>if (irq_status & MASK_ADV7511_EDID_RDY_INT) <------><------>adv7511_check_edid_status(sd); #if IS_ENABLED(CONFIG_VIDEO_ADV7511_CEC) <------>if (cec_irq & 0x38) <------><------>adv_cec_tx_raw_status(sd, cec_irq); <------>if (cec_irq & 1) { <------><------>struct adv7511_state *state = get_adv7511_state(sd); <------><------>struct cec_msg msg; <------><------>msg.len = adv7511_cec_read(sd, 0x25) & 0x1f; <------><------>v4l2_dbg(1, debug, sd, "%s: cec msg len %d\n", __func__, <------><------><------> msg.len); <------><------>if (msg.len > 16) <------><------><------>msg.len = 16; <------><------>if (msg.len) { <------><------><------>u8 i; <------><------><------>for (i = 0; i < msg.len; i++) <------><------><------><------>msg.msg[i] = adv7511_cec_read(sd, i + 0x15); <------><------><------>adv7511_cec_write(sd, 0x4a, 0); /* toggle to re-enable rx 1 */ <------><------><------>adv7511_cec_write(sd, 0x4a, 1); <------><------><------>cec_received_msg(state->cec_adap, &msg); <------><------>} <------>} #endif <------>/* enable interrupts */ <------>adv7511_set_isr(sd, true); <------>if (handled) <------><------>*handled = true; <------>return 0; } static const struct v4l2_subdev_core_ops adv7511_core_ops = { <------>.log_status = adv7511_log_status, #ifdef CONFIG_VIDEO_ADV_DEBUG <------>.g_register = adv7511_g_register, <------>.s_register = adv7511_s_register, #endif <------>.s_power = adv7511_s_power, <------>.interrupt_service_routine = adv7511_isr, }; /* ------------------------------ VIDEO OPS ------------------------------ */ /* Enable/disable adv7511 output */ static int adv7511_s_stream(struct v4l2_subdev *sd, int enable) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>v4l2_dbg(1, debug, sd, "%s: %sable\n", __func__, (enable ? "en" : "dis")); <------>adv7511_wr_and_or(sd, 0xa1, ~0x3c, (enable ? 0 : 0x3c)); <------>if (enable) { <------><------>adv7511_check_monitor_present_status(sd); <------>} else { <------><------>adv7511_s_power(sd, 0); <------><------>state->have_monitor = false; <------>} <------>return 0; } static int adv7511_s_dv_timings(struct v4l2_subdev *sd, <------><------><------> struct v4l2_dv_timings *timings) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>struct v4l2_bt_timings *bt = &timings->bt; <------>u32 fps; <------>v4l2_dbg(1, debug, sd, "%s:\n", __func__); <------>/* quick sanity check */ <------>if (!v4l2_valid_dv_timings(timings, &adv7511_timings_cap, NULL, NULL)) <------><------>return -EINVAL; <------>/* Fill the optional fields .standards and .flags in struct v4l2_dv_timings <------> if the format is one of the CEA or DMT timings. */ <------>v4l2_find_dv_timings_cap(timings, &adv7511_timings_cap, 0, NULL, NULL); <------>/* save timings */ <------>state->dv_timings = *timings; <------>/* set h/vsync polarities */ <------>adv7511_wr_and_or(sd, 0x17, 0x9f, <------><------>((bt->polarities & V4L2_DV_VSYNC_POS_POL) ? 0 : 0x40) | <------><------>((bt->polarities & V4L2_DV_HSYNC_POS_POL) ? 0 : 0x20)); <------>fps = (u32)bt->pixelclock / (V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt)); <------>switch (fps) { <------>case 24: <------><------>adv7511_wr_and_or(sd, 0xfb, 0xf9, 1 << 1); <------><------>break; <------>case 25: <------><------>adv7511_wr_and_or(sd, 0xfb, 0xf9, 2 << 1); <------><------>break; <------>case 30: <------><------>adv7511_wr_and_or(sd, 0xfb, 0xf9, 3 << 1); <------><------>break; <------>default: <------><------>adv7511_wr_and_or(sd, 0xfb, 0xf9, 0); <------><------>break; <------>} <------>/* update quantization range based on new dv_timings */ <------>adv7511_set_rgb_quantization_mode(sd, state->rgb_quantization_range_ctrl); <------>return 0; } static int adv7511_g_dv_timings(struct v4l2_subdev *sd, <------><------><------><------>struct v4l2_dv_timings *timings) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>v4l2_dbg(1, debug, sd, "%s:\n", __func__); <------>if (!timings) <------><------>return -EINVAL; <------>*timings = state->dv_timings; <------>return 0; } static int adv7511_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, &adv7511_timings_cap, NULL, NULL); } static int adv7511_dv_timings_cap(struct v4l2_subdev *sd, <------><------><------><------> struct v4l2_dv_timings_cap *cap) { <------>if (cap->pad != 0) <------><------>return -EINVAL; <------>*cap = adv7511_timings_cap; <------>return 0; } static const struct v4l2_subdev_video_ops adv7511_video_ops = { <------>.s_stream = adv7511_s_stream, <------>.s_dv_timings = adv7511_s_dv_timings, <------>.g_dv_timings = adv7511_g_dv_timings, }; /* ------------------------------ AUDIO OPS ------------------------------ */ static int adv7511_s_audio_stream(struct v4l2_subdev *sd, int enable) { <------>v4l2_dbg(1, debug, sd, "%s: %sable\n", __func__, (enable ? "en" : "dis")); <------>if (enable) <------><------>adv7511_wr_and_or(sd, 0x4b, 0x3f, 0x80); <------>else <------><------>adv7511_wr_and_or(sd, 0x4b, 0x3f, 0x40); <------>return 0; } static int adv7511_s_clock_freq(struct v4l2_subdev *sd, u32 freq) { <------>u32 N; <------>switch (freq) { <------>case 32000: N = 4096; break; <------>case 44100: N = 6272; break; <------>case 48000: N = 6144; break; <------>case 88200: N = 12544; break; <------>case 96000: N = 12288; break; <------>case 176400: N = 25088; break; <------>case 192000: N = 24576; break; <------>default: <------><------>return -EINVAL; <------>} <------>/* Set N (used with CTS to regenerate the audio clock) */ <------>adv7511_wr(sd, 0x01, (N >> 16) & 0xf); <------>adv7511_wr(sd, 0x02, (N >> 8) & 0xff); <------>adv7511_wr(sd, 0x03, N & 0xff); <------>return 0; } static int adv7511_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq) { <------>u32 i2s_sf; <------>switch (freq) { <------>case 32000: i2s_sf = 0x30; break; <------>case 44100: i2s_sf = 0x00; break; <------>case 48000: i2s_sf = 0x20; break; <------>case 88200: i2s_sf = 0x80; break; <------>case 96000: i2s_sf = 0xa0; break; <------>case 176400: i2s_sf = 0xc0; break; <------>case 192000: i2s_sf = 0xe0; break; <------>default: <------><------>return -EINVAL; <------>} <------>/* Set sampling frequency for I2S audio to 48 kHz */ <------>adv7511_wr_and_or(sd, 0x15, 0xf, i2s_sf); <------>return 0; } static int adv7511_s_routing(struct v4l2_subdev *sd, u32 input, u32 output, u32 config) { <------>/* Only 2 channels in use for application */ <------>adv7511_wr_and_or(sd, 0x73, 0xf8, 0x1); <------>/* Speaker mapping */ <------>adv7511_wr(sd, 0x76, 0x00); <------>/* 16 bit audio word length */ <------>adv7511_wr_and_or(sd, 0x14, 0xf0, 0x02); <------>return 0; } static const struct v4l2_subdev_audio_ops adv7511_audio_ops = { <------>.s_stream = adv7511_s_audio_stream, <------>.s_clock_freq = adv7511_s_clock_freq, <------>.s_i2s_clock_freq = adv7511_s_i2s_clock_freq, <------>.s_routing = adv7511_s_routing, }; /* ---------------------------- PAD OPS ------------------------------------- */ static int adv7511_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>memset(edid->reserved, 0, sizeof(edid->reserved)); <------>if (edid->pad != 0) <------><------>return -EINVAL; <------>if (edid->start_block == 0 && edid->blocks == 0) { <------><------>edid->blocks = state->edid.segments * 2; <------><------>return 0; <------>} <------>if (state->edid.segments == 0) <------><------>return -ENODATA; <------>if (edid->start_block >= state->edid.segments * 2) <------><------>return -EINVAL; <------>if (edid->start_block + edid->blocks > state->edid.segments * 2) <------><------>edid->blocks = state->edid.segments * 2 - edid->start_block; <------>memcpy(edid->edid, &state->edid.data[edid->start_block * 128], <------><------><------>128 * edid->blocks); <------>return 0; } static int adv7511_enum_mbus_code(struct v4l2_subdev *sd, <------><------><------><------> struct v4l2_subdev_pad_config *cfg, <------><------><------><------> struct v4l2_subdev_mbus_code_enum *code) { <------>if (code->pad != 0) <------><------>return -EINVAL; <------>switch (code->index) { <------>case 0: <------><------>code->code = MEDIA_BUS_FMT_RGB888_1X24; <------><------>break; <------>case 1: <------><------>code->code = MEDIA_BUS_FMT_YUYV8_1X16; <------><------>break; <------>case 2: <------><------>code->code = MEDIA_BUS_FMT_UYVY8_1X16; <------><------>break; <------>default: <------><------>return -EINVAL; <------>} <------>return 0; } static void adv7511_fill_format(struct adv7511_state *state, <------><------><------><------>struct v4l2_mbus_framefmt *format) { <------>format->width = state->dv_timings.bt.width; <------>format->height = state->dv_timings.bt.height; <------>format->field = V4L2_FIELD_NONE; } static int adv7511_get_fmt(struct v4l2_subdev *sd, <------><------><------> struct v4l2_subdev_pad_config *cfg, <------><------><------> struct v4l2_subdev_format *format) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>if (format->pad != 0) <------><------>return -EINVAL; <------>memset(&format->format, 0, sizeof(format->format)); <------>adv7511_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; <------><------>format->format.colorspace = fmt->colorspace; <------><------>format->format.ycbcr_enc = fmt->ycbcr_enc; <------><------>format->format.quantization = fmt->quantization; <------><------>format->format.xfer_func = fmt->xfer_func; <------>} else { <------><------>format->format.code = state->fmt_code; <------><------>format->format.colorspace = state->colorspace; <------><------>format->format.ycbcr_enc = state->ycbcr_enc; <------><------>format->format.quantization = state->quantization; <------><------>format->format.xfer_func = state->xfer_func; <------>} <------>return 0; } static int adv7511_set_fmt(struct v4l2_subdev *sd, <------><------><------> struct v4l2_subdev_pad_config *cfg, <------><------><------> struct v4l2_subdev_format *format) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>/* <------> * Bitfield namings come the CEA-861-F standard, table 8 "Auxiliary <------> * Video Information (AVI) InfoFrame Format" <------> * <------> * c = Colorimetry <------> * ec = Extended Colorimetry <------> * y = RGB or YCbCr <------> * q = RGB Quantization Range <------> * yq = YCC Quantization Range <------> */ <------>u8 c = HDMI_COLORIMETRY_NONE; <------>u8 ec = HDMI_EXTENDED_COLORIMETRY_XV_YCC_601; <------>u8 y = HDMI_COLORSPACE_RGB; <------>u8 q = HDMI_QUANTIZATION_RANGE_DEFAULT; <------>u8 yq = HDMI_YCC_QUANTIZATION_RANGE_LIMITED; <------>u8 itc = state->content_type != V4L2_DV_IT_CONTENT_TYPE_NO_ITC; <------>u8 cn = itc ? state->content_type : V4L2_DV_IT_CONTENT_TYPE_GRAPHICS; <------>if (format->pad != 0) <------><------>return -EINVAL; <------>switch (format->format.code) { <------>case MEDIA_BUS_FMT_UYVY8_1X16: <------>case MEDIA_BUS_FMT_YUYV8_1X16: <------>case MEDIA_BUS_FMT_RGB888_1X24: <------><------>break; <------>default: <------><------>return -EINVAL; <------>} <------>adv7511_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); <------><------>fmt->code = format->format.code; <------><------>fmt->colorspace = format->format.colorspace; <------><------>fmt->ycbcr_enc = format->format.ycbcr_enc; <------><------>fmt->quantization = format->format.quantization; <------><------>fmt->xfer_func = format->format.xfer_func; <------><------>return 0; <------>} <------>switch (format->format.code) { <------>case MEDIA_BUS_FMT_UYVY8_1X16: <------><------>adv7511_wr_and_or(sd, 0x15, 0xf0, 0x01); <------><------>adv7511_wr_and_or(sd, 0x16, 0x03, 0xb8); <------><------>y = HDMI_COLORSPACE_YUV422; <------><------>break; <------>case MEDIA_BUS_FMT_YUYV8_1X16: <------><------>adv7511_wr_and_or(sd, 0x15, 0xf0, 0x01); <------><------>adv7511_wr_and_or(sd, 0x16, 0x03, 0xbc); <------><------>y = HDMI_COLORSPACE_YUV422; <------><------>break; <------>case MEDIA_BUS_FMT_RGB888_1X24: <------>default: <------><------>adv7511_wr_and_or(sd, 0x15, 0xf0, 0x00); <------><------>adv7511_wr_and_or(sd, 0x16, 0x03, 0x00); <------><------>break; <------>} <------>state->fmt_code = format->format.code; <------>state->colorspace = format->format.colorspace; <------>state->ycbcr_enc = format->format.ycbcr_enc; <------>state->quantization = format->format.quantization; <------>state->xfer_func = format->format.xfer_func; <------>switch (format->format.colorspace) { <------>case V4L2_COLORSPACE_OPRGB: <------><------>c = HDMI_COLORIMETRY_EXTENDED; <------><------>ec = y ? HDMI_EXTENDED_COLORIMETRY_OPYCC_601 : <------><------><------> HDMI_EXTENDED_COLORIMETRY_OPRGB; <------><------>break; <------>case V4L2_COLORSPACE_SMPTE170M: <------><------>c = y ? HDMI_COLORIMETRY_ITU_601 : HDMI_COLORIMETRY_NONE; <------><------>if (y && format->format.ycbcr_enc == V4L2_YCBCR_ENC_XV601) { <------><------><------>c = HDMI_COLORIMETRY_EXTENDED; <------><------><------>ec = HDMI_EXTENDED_COLORIMETRY_XV_YCC_601; <------><------>} <------><------>break; <------>case V4L2_COLORSPACE_REC709: <------><------>c = y ? HDMI_COLORIMETRY_ITU_709 : HDMI_COLORIMETRY_NONE; <------><------>if (y && format->format.ycbcr_enc == V4L2_YCBCR_ENC_XV709) { <------><------><------>c = HDMI_COLORIMETRY_EXTENDED; <------><------><------>ec = HDMI_EXTENDED_COLORIMETRY_XV_YCC_709; <------><------>} <------><------>break; <------>case V4L2_COLORSPACE_SRGB: <------><------>c = y ? HDMI_COLORIMETRY_EXTENDED : HDMI_COLORIMETRY_NONE; <------><------>ec = y ? HDMI_EXTENDED_COLORIMETRY_S_YCC_601 : <------><------><------> HDMI_EXTENDED_COLORIMETRY_XV_YCC_601; <------><------>break; <------>case V4L2_COLORSPACE_BT2020: <------><------>c = HDMI_COLORIMETRY_EXTENDED; <------><------>if (y && format->format.ycbcr_enc == V4L2_YCBCR_ENC_BT2020_CONST_LUM) <------><------><------>ec = 5; /* Not yet available in hdmi.h */ <------><------>else <------><------><------>ec = 6; /* Not yet available in hdmi.h */ <------><------>break; <------>default: <------><------>break; <------>} <------>/* <------> * CEA-861-F says that for RGB formats the YCC range must match the <------> * RGB range, although sources should ignore the YCC range. <------> * <------> * The RGB quantization range shouldn't be non-zero if the EDID doesn't <------> * have the Q bit set in the Video Capabilities Data Block, however this <------> * isn't checked at the moment. The assumption is that the application <------> * knows the EDID and can detect this. <------> * <------> * The same is true for the YCC quantization range: non-standard YCC <------> * quantization ranges should only be sent if the EDID has the YQ bit <------> * set in the Video Capabilities Data Block. <------> */ <------>switch (format->format.quantization) { <------>case V4L2_QUANTIZATION_FULL_RANGE: <------><------>q = y ? HDMI_QUANTIZATION_RANGE_DEFAULT : <------><------><------>HDMI_QUANTIZATION_RANGE_FULL; <------><------>yq = q ? q - 1 : HDMI_YCC_QUANTIZATION_RANGE_FULL; <------><------>break; <------>case V4L2_QUANTIZATION_LIM_RANGE: <------><------>q = y ? HDMI_QUANTIZATION_RANGE_DEFAULT : <------><------><------>HDMI_QUANTIZATION_RANGE_LIMITED; <------><------>yq = q ? q - 1 : HDMI_YCC_QUANTIZATION_RANGE_LIMITED; <------><------>break; <------>} <------>adv7511_wr_and_or(sd, 0x4a, 0xbf, 0); <------>adv7511_wr_and_or(sd, 0x55, 0x9f, y << 5); <------>adv7511_wr_and_or(sd, 0x56, 0x3f, c << 6); <------>adv7511_wr_and_or(sd, 0x57, 0x83, (ec << 4) | (q << 2) | (itc << 7)); <------>adv7511_wr_and_or(sd, 0x59, 0x0f, (yq << 6) | (cn << 4)); <------>adv7511_wr_and_or(sd, 0x4a, 0xff, 1); <------>adv7511_set_rgb_quantization_mode(sd, state->rgb_quantization_range_ctrl); <------>return 0; } static const struct v4l2_subdev_pad_ops adv7511_pad_ops = { <------>.get_edid = adv7511_get_edid, <------>.enum_mbus_code = adv7511_enum_mbus_code, <------>.get_fmt = adv7511_get_fmt, <------>.set_fmt = adv7511_set_fmt, <------>.enum_dv_timings = adv7511_enum_dv_timings, <------>.dv_timings_cap = adv7511_dv_timings_cap, }; /* --------------------- SUBDEV OPS --------------------------------------- */ static const struct v4l2_subdev_ops adv7511_ops = { <------>.core = &adv7511_core_ops, <------>.pad = &adv7511_pad_ops, <------>.video = &adv7511_video_ops, <------>.audio = &adv7511_audio_ops, }; /* ----------------------------------------------------------------------- */ static void adv7511_dbg_dump_edid(int lvl, int debug, struct v4l2_subdev *sd, int segment, u8 *buf) { <------>if (debug >= lvl) { <------><------>int i, j; <------><------>v4l2_dbg(lvl, debug, sd, "edid segment %d\n", segment); <------><------>for (i = 0; i < 256; i += 16) { <------><------><------>u8 b[128]; <------><------><------>u8 *bp = b; <------><------><------>if (i == 128) <------><------><------><------>v4l2_dbg(lvl, debug, sd, "\n"); <------><------><------>for (j = i; j < i + 16; j++) { <------><------><------><------>sprintf(bp, "0x%02x, ", buf[j]); <------><------><------><------>bp += 6; <------><------><------>} <------><------><------>bp[0] = '\0'; <------><------><------>v4l2_dbg(lvl, debug, sd, "%s\n", b); <------><------>} <------>} } static void adv7511_notify_no_edid(struct v4l2_subdev *sd) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>struct adv7511_edid_detect ed; <------>/* We failed to read the EDID, so send an event for this. */ <------>ed.present = false; <------>ed.segment = adv7511_rd(sd, 0xc4); <------>ed.phys_addr = CEC_PHYS_ADDR_INVALID; <------>cec_s_phys_addr(state->cec_adap, ed.phys_addr, false); <------>v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed); <------>v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, 0x0); } static void adv7511_edid_handler(struct work_struct *work) { <------>struct delayed_work *dwork = to_delayed_work(work); <------>struct adv7511_state *state = container_of(dwork, struct adv7511_state, edid_handler); <------>struct v4l2_subdev *sd = &state->sd; <------>v4l2_dbg(1, debug, sd, "%s:\n", __func__); <------>if (adv7511_check_edid_status(sd)) { <------><------>/* Return if we received the EDID. */ <------><------>return; <------>} <------>if (adv7511_have_hotplug(sd)) { <------><------>/* We must retry reading the EDID several times, it is possible <------><------> * that initially the EDID couldn't be read due to i2c errors <------><------> * (DVI connectors are particularly prone to this problem). */ <------><------>if (state->edid.read_retries) { <------><------><------>state->edid.read_retries--; <------><------><------>v4l2_dbg(1, debug, sd, "%s: edid read failed\n", __func__); <------><------><------>state->have_monitor = false; <------><------><------>adv7511_s_power(sd, false); <------><------><------>adv7511_s_power(sd, true); <------><------><------>queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY); <------><------><------>return; <------><------>} <------>} <------>/* We failed to read the EDID, so send an event for this. */ <------>adv7511_notify_no_edid(sd); <------>v4l2_dbg(1, debug, sd, "%s: no edid found\n", __func__); } static void adv7511_audio_setup(struct v4l2_subdev *sd) { <------>v4l2_dbg(1, debug, sd, "%s\n", __func__); <------>adv7511_s_i2s_clock_freq(sd, 48000); <------>adv7511_s_clock_freq(sd, 48000); <------>adv7511_s_routing(sd, 0, 0, 0); } /* Configure hdmi transmitter. */ static void adv7511_setup(struct v4l2_subdev *sd) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>v4l2_dbg(1, debug, sd, "%s\n", __func__); <------>/* Input format: RGB 4:4:4 */ <------>adv7511_wr_and_or(sd, 0x15, 0xf0, 0x0); <------>/* Output format: RGB 4:4:4 */ <------>adv7511_wr_and_or(sd, 0x16, 0x7f, 0x0); <------>/* 1st order interpolation 4:2:2 -> 4:4:4 up conversion, Aspect ratio: 16:9 */ <------>adv7511_wr_and_or(sd, 0x17, 0xf9, 0x06); <------>/* Disable pixel repetition */ <------>adv7511_wr_and_or(sd, 0x3b, 0x9f, 0x0); <------>/* Disable CSC */ <------>adv7511_wr_and_or(sd, 0x18, 0x7f, 0x0); <------>/* Output format: RGB 4:4:4, Active Format Information is valid, <------> * underscanned */ <------>adv7511_wr_and_or(sd, 0x55, 0x9c, 0x12); <------>/* AVI Info frame packet enable, Audio Info frame disable */ <------>adv7511_wr_and_or(sd, 0x44, 0xe7, 0x10); <------>/* Colorimetry, Active format aspect ratio: same as picure. */ <------>adv7511_wr(sd, 0x56, 0xa8); <------>/* No encryption */ <------>adv7511_wr_and_or(sd, 0xaf, 0xed, 0x0); <------>/* Positive clk edge capture for input video clock */ <------>adv7511_wr_and_or(sd, 0xba, 0x1f, 0x60); <------>adv7511_audio_setup(sd); <------>v4l2_ctrl_handler_setup(&state->hdl); } static void adv7511_notify_monitor_detect(struct v4l2_subdev *sd) { <------>struct adv7511_monitor_detect mdt; <------>struct adv7511_state *state = get_adv7511_state(sd); <------>mdt.present = state->have_monitor; <------>v4l2_subdev_notify(sd, ADV7511_MONITOR_DETECT, (void *)&mdt); } static void adv7511_check_monitor_present_status(struct v4l2_subdev *sd) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>/* read hotplug and rx-sense state */ <------>u8 status = adv7511_rd(sd, 0x42); <------>v4l2_dbg(1, debug, sd, "%s: status: 0x%x%s%s\n", <------><------><------> __func__, <------><------><------> status, <------><------><------> status & MASK_ADV7511_HPD_DETECT ? ", hotplug" : "", <------><------><------> status & MASK_ADV7511_MSEN_DETECT ? ", rx-sense" : ""); <------>/* update read only ctrls */ <------>v4l2_ctrl_s_ctrl(state->hotplug_ctrl, adv7511_have_hotplug(sd) ? 0x1 : 0x0); <------>v4l2_ctrl_s_ctrl(state->rx_sense_ctrl, adv7511_have_rx_sense(sd) ? 0x1 : 0x0); <------>if ((status & MASK_ADV7511_HPD_DETECT) && ((status & MASK_ADV7511_MSEN_DETECT) || state->edid.segments)) { <------><------>v4l2_dbg(1, debug, sd, "%s: hotplug and (rx-sense or edid)\n", __func__); <------><------>if (!state->have_monitor) { <------><------><------>v4l2_dbg(1, debug, sd, "%s: monitor detected\n", __func__); <------><------><------>state->have_monitor = true; <------><------><------>adv7511_set_isr(sd, true); <------><------><------>if (!adv7511_s_power(sd, true)) { <------><------><------><------>v4l2_dbg(1, debug, sd, "%s: monitor detected, powerup failed\n", __func__); <------><------><------><------>return; <------><------><------>} <------><------><------>adv7511_setup(sd); <------><------><------>adv7511_notify_monitor_detect(sd); <------><------><------>state->edid.read_retries = EDID_MAX_RETRIES; <------><------><------>queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY); <------><------>} <------>} else if (status & MASK_ADV7511_HPD_DETECT) { <------><------>v4l2_dbg(1, debug, sd, "%s: hotplug detected\n", __func__); <------><------>state->edid.read_retries = EDID_MAX_RETRIES; <------><------>queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY); <------>} else if (!(status & MASK_ADV7511_HPD_DETECT)) { <------><------>v4l2_dbg(1, debug, sd, "%s: hotplug not detected\n", __func__); <------><------>if (state->have_monitor) { <------><------><------>v4l2_dbg(1, debug, sd, "%s: monitor not detected\n", __func__); <------><------><------>state->have_monitor = false; <------><------><------>adv7511_notify_monitor_detect(sd); <------><------>} <------><------>adv7511_s_power(sd, false); <------><------>memset(&state->edid, 0, sizeof(struct adv7511_state_edid)); <------><------>adv7511_notify_no_edid(sd); <------>} } static bool edid_block_verify_crc(u8 *edid_block) { <------>u8 sum = 0; <------>int i; <------>for (i = 0; i < 128; i++) <------><------>sum += edid_block[i]; <------>return sum == 0; } static bool edid_verify_crc(struct v4l2_subdev *sd, u32 segment) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>u32 blocks = state->edid.blocks; <------>u8 *data = state->edid.data; <------>if (!edid_block_verify_crc(&data[segment * 256])) <------><------>return false; <------>if ((segment + 1) * 2 <= blocks) <------><------>return edid_block_verify_crc(&data[segment * 256 + 128]); <------>return true; } static bool edid_verify_header(struct v4l2_subdev *sd, u32 segment) { <------>static const u8 hdmi_header[] = { <------><------>0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 <------>}; <------>struct adv7511_state *state = get_adv7511_state(sd); <------>u8 *data = state->edid.data; <------>if (segment != 0) <------><------>return true; <------>return !memcmp(data, hdmi_header, sizeof(hdmi_header)); } static bool adv7511_check_edid_status(struct v4l2_subdev *sd) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>u8 edidRdy = adv7511_rd(sd, 0xc5); <------>v4l2_dbg(1, debug, sd, "%s: edid ready (retries: %d)\n", <------><------><------> __func__, EDID_MAX_RETRIES - state->edid.read_retries); <------>if (state->edid.complete) <------><------>return true; <------>if (edidRdy & MASK_ADV7511_EDID_RDY) { <------><------>int segment = adv7511_rd(sd, 0xc4); <------><------>struct adv7511_edid_detect ed; <------><------>if (segment >= EDID_MAX_SEGM) { <------><------><------>v4l2_err(sd, "edid segment number too big\n"); <------><------><------>return false; <------><------>} <------><------>v4l2_dbg(1, debug, sd, "%s: got segment %d\n", __func__, segment); <------><------>adv7511_edid_rd(sd, 256, &state->edid.data[segment * 256]); <------><------>adv7511_dbg_dump_edid(2, debug, sd, segment, &state->edid.data[segment * 256]); <------><------>if (segment == 0) { <------><------><------>state->edid.blocks = state->edid.data[0x7e] + 1; <------><------><------>v4l2_dbg(1, debug, sd, "%s: %d blocks in total\n", __func__, state->edid.blocks); <------><------>} <------><------>if (!edid_verify_crc(sd, segment) || <------><------> !edid_verify_header(sd, segment)) { <------><------><------>/* edid crc error, force reread of edid segment */ <------><------><------>v4l2_err(sd, "%s: edid crc or header error\n", __func__); <------><------><------>state->have_monitor = false; <------><------><------>adv7511_s_power(sd, false); <------><------><------>adv7511_s_power(sd, true); <------><------><------>return false; <------><------>} <------><------>/* one more segment read ok */ <------><------>state->edid.segments = segment + 1; <------><------>v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, 0x1); <------><------>if (((state->edid.data[0x7e] >> 1) + 1) > state->edid.segments) { <------><------><------>/* Request next EDID segment */ <------><------><------>v4l2_dbg(1, debug, sd, "%s: request segment %d\n", __func__, state->edid.segments); <------><------><------>adv7511_wr(sd, 0xc9, 0xf); <------><------><------>adv7511_wr(sd, 0xc4, state->edid.segments); <------><------><------>state->edid.read_retries = EDID_MAX_RETRIES; <------><------><------>queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY); <------><------><------>return false; <------><------>} <------><------>v4l2_dbg(1, debug, sd, "%s: edid complete with %d segment(s)\n", __func__, state->edid.segments); <------><------>state->edid.complete = true; <------><------>ed.phys_addr = cec_get_edid_phys_addr(state->edid.data, <------><------><------><------><------><------> state->edid.segments * 256, <------><------><------><------><------><------> NULL); <------><------>/* report when we have all segments <------><------> but report only for segment 0 <------><------> */ <------><------>ed.present = true; <------><------>ed.segment = 0; <------><------>state->edid_detect_counter++; <------><------>cec_s_phys_addr(state->cec_adap, ed.phys_addr, false); <------><------>v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed); <------><------>return ed.present; <------>} <------>return false; } static int adv7511_registered(struct v4l2_subdev *sd) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>struct i2c_client *client = v4l2_get_subdevdata(sd); <------>int err; <------>err = cec_register_adapter(state->cec_adap, &client->dev); <------>if (err) <------><------>cec_delete_adapter(state->cec_adap); <------>return err; } static void adv7511_unregistered(struct v4l2_subdev *sd) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>cec_unregister_adapter(state->cec_adap); } static const struct v4l2_subdev_internal_ops adv7511_int_ops = { <------>.registered = adv7511_registered, <------>.unregistered = adv7511_unregistered, }; /* ----------------------------------------------------------------------- */ /* Setup ADV7511 */ static void adv7511_init_setup(struct v4l2_subdev *sd) { <------>struct adv7511_state *state = get_adv7511_state(sd); <------>struct adv7511_state_edid *edid = &state->edid; <------>u32 cec_clk = state->pdata.cec_clk; <------>u8 ratio; <------>v4l2_dbg(1, debug, sd, "%s\n", __func__); <------>/* clear all interrupts */ <------>adv7511_wr(sd, 0x96, 0xff); <------>adv7511_wr(sd, 0x97, 0xff); <------>/* <------> * Stop HPD from resetting a lot of registers. <------> * It might leave the chip in a partly un-initialized state, <------> * in particular with regards to hotplug bounces. <------> */ <------>adv7511_wr_and_or(sd, 0xd6, 0x3f, 0xc0); <------>memset(edid, 0, sizeof(struct adv7511_state_edid)); <------>state->have_monitor = false; <------>adv7511_set_isr(sd, false); <------>adv7511_s_stream(sd, false); <------>adv7511_s_audio_stream(sd, false); <------>if (state->i2c_cec == NULL) <------><------>return; <------>v4l2_dbg(1, debug, sd, "%s: cec_clk %d\n", __func__, cec_clk); <------>/* cec soft reset */ <------>adv7511_cec_write(sd, 0x50, 0x01); <------>adv7511_cec_write(sd, 0x50, 0x00); <------>/* legacy mode */ <------>adv7511_cec_write(sd, 0x4a, 0x00); <------>adv7511_cec_write(sd, 0x4a, 0x07); <------>if (cec_clk % 750000 != 0) <------><------>v4l2_err(sd, "%s: cec_clk %d, not multiple of 750 Khz\n", <------><------><------> __func__, cec_clk); <------>ratio = (cec_clk / 750000) - 1; <------>adv7511_cec_write(sd, 0x4e, ratio << 2); } static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *id) { <------>struct adv7511_state *state; <------>struct adv7511_platform_data *pdata = client->dev.platform_data; <------>struct v4l2_ctrl_handler *hdl; <------>struct v4l2_subdev *sd; <------>u8 chip_id[2]; <------>int err = -EIO; <------>/* Check if the adapter supports the needed features */ <------>if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) <------><------>return -EIO; <------>state = devm_kzalloc(&client->dev, sizeof(struct adv7511_state), GFP_KERNEL); <------>if (!state) <------><------>return -ENOMEM; <------>/* Platform data */ <------>if (!pdata) { <------><------>v4l_err(client, "No platform data!\n"); <------><------>return -ENODEV; <------>} <------>memcpy(&state->pdata, pdata, sizeof(state->pdata)); <------>state->fmt_code = MEDIA_BUS_FMT_RGB888_1X24; <------>state->colorspace = V4L2_COLORSPACE_SRGB; <------>sd = &state->sd; <------>v4l2_dbg(1, debug, sd, "detecting adv7511 client on address 0x%x\n", <------><------><------> client->addr << 1); <------>v4l2_i2c_subdev_init(sd, client, &adv7511_ops); <------>sd->internal_ops = &adv7511_int_ops; <------>hdl = &state->hdl; <------>v4l2_ctrl_handler_init(hdl, 10); <------>/* add in ascending ID order */ <------>state->hdmi_mode_ctrl = v4l2_ctrl_new_std_menu(hdl, &adv7511_ctrl_ops, <------><------><------>V4L2_CID_DV_TX_MODE, V4L2_DV_TX_MODE_HDMI, <------><------><------>0, V4L2_DV_TX_MODE_DVI_D); <------>state->hotplug_ctrl = v4l2_ctrl_new_std(hdl, NULL, <------><------><------>V4L2_CID_DV_TX_HOTPLUG, 0, 1, 0, 0); <------>state->rx_sense_ctrl = v4l2_ctrl_new_std(hdl, NULL, <------><------><------>V4L2_CID_DV_TX_RXSENSE, 0, 1, 0, 0); <------>state->have_edid0_ctrl = v4l2_ctrl_new_std(hdl, NULL, <------><------><------>V4L2_CID_DV_TX_EDID_PRESENT, 0, 1, 0, 0); <------>state->rgb_quantization_range_ctrl = <------><------>v4l2_ctrl_new_std_menu(hdl, &adv7511_ctrl_ops, <------><------><------>V4L2_CID_DV_TX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL, <------><------><------>0, V4L2_DV_RGB_RANGE_AUTO); <------>state->content_type_ctrl = <------><------>v4l2_ctrl_new_std_menu(hdl, &adv7511_ctrl_ops, <------><------><------>V4L2_CID_DV_TX_IT_CONTENT_TYPE, V4L2_DV_IT_CONTENT_TYPE_NO_ITC, <------><------><------>0, V4L2_DV_IT_CONTENT_TYPE_NO_ITC); <------>sd->ctrl_handler = hdl; <------>if (hdl->error) { <------><------>err = hdl->error; <------><------>goto err_hdl; <------>} <------>state->pad.flags = MEDIA_PAD_FL_SINK; <------>sd->entity.function = MEDIA_ENT_F_DV_ENCODER; <------>err = media_entity_pads_init(&sd->entity, 1, &state->pad); <------>if (err) <------><------>goto err_hdl; <------>/* EDID and CEC i2c addr */ <------>state->i2c_edid_addr = state->pdata.i2c_edid << 1; <------>state->i2c_cec_addr = state->pdata.i2c_cec << 1; <------>state->i2c_pktmem_addr = state->pdata.i2c_pktmem << 1; <------>state->chip_revision = adv7511_rd(sd, 0x0); <------>chip_id[0] = adv7511_rd(sd, 0xf5); <------>chip_id[1] = adv7511_rd(sd, 0xf6); <------>if (chip_id[0] != 0x75 || chip_id[1] != 0x11) { <------><------>v4l2_err(sd, "chip_id != 0x7511, read 0x%02x%02x\n", chip_id[0], <------><------><------> chip_id[1]); <------><------>err = -EIO; <------><------>goto err_entity; <------>} <------>state->i2c_edid = i2c_new_dummy_device(client->adapter, <------><------><------><------><------>state->i2c_edid_addr >> 1); <------>if (IS_ERR(state->i2c_edid)) { <------><------>v4l2_err(sd, "failed to register edid i2c client\n"); <------><------>err = PTR_ERR(state->i2c_edid); <------><------>goto err_entity; <------>} <------>adv7511_wr(sd, 0xe1, state->i2c_cec_addr); <------>if (state->pdata.cec_clk < 3000000 || <------> state->pdata.cec_clk > 100000000) { <------><------>v4l2_err(sd, "%s: cec_clk %u outside range, disabling cec\n", <------><------><------><------>__func__, state->pdata.cec_clk); <------><------>state->pdata.cec_clk = 0; <------>} <------>if (state->pdata.cec_clk) { <------><------>state->i2c_cec = i2c_new_dummy_device(client->adapter, <------><------><------><------><------> state->i2c_cec_addr >> 1); <------><------>if (IS_ERR(state->i2c_cec)) { <------><------><------>v4l2_err(sd, "failed to register cec i2c client\n"); <------><------><------>err = PTR_ERR(state->i2c_cec); <------><------><------>goto err_unreg_edid; <------><------>} <------><------>adv7511_wr(sd, 0xe2, 0x00); /* power up cec section */ <------>} else { <------><------>adv7511_wr(sd, 0xe2, 0x01); /* power down cec section */ <------>} <------>state->i2c_pktmem = i2c_new_dummy_device(client->adapter, state->i2c_pktmem_addr >> 1); <------>if (IS_ERR(state->i2c_pktmem)) { <------><------>v4l2_err(sd, "failed to register pktmem i2c client\n"); <------><------>err = PTR_ERR(state->i2c_pktmem); <------><------>goto err_unreg_cec; <------>} <------>state->work_queue = create_singlethread_workqueue(sd->name); <------>if (state->work_queue == NULL) { <------><------>v4l2_err(sd, "could not create workqueue\n"); <------><------>err = -ENOMEM; <------><------>goto err_unreg_pktmem; <------>} <------>INIT_DELAYED_WORK(&state->edid_handler, adv7511_edid_handler); <------>adv7511_init_setup(sd); #if IS_ENABLED(CONFIG_VIDEO_ADV7511_CEC) <------>state->cec_adap = cec_allocate_adapter(&adv7511_cec_adap_ops, <------><------>state, dev_name(&client->dev), CEC_CAP_DEFAULTS, <------><------>ADV7511_MAX_ADDRS); <------>err = PTR_ERR_OR_ZERO(state->cec_adap); <------>if (err) { <------><------>destroy_workqueue(state->work_queue); <------><------>goto err_unreg_pktmem; <------>} #endif <------>adv7511_set_isr(sd, true); <------>adv7511_check_monitor_present_status(sd); <------>v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name, <------><------><------> client->addr << 1, client->adapter->name); <------>return 0; err_unreg_pktmem: <------>i2c_unregister_device(state->i2c_pktmem); err_unreg_cec: <------>i2c_unregister_device(state->i2c_cec); err_unreg_edid: <------>i2c_unregister_device(state->i2c_edid); err_entity: <------>media_entity_cleanup(&sd->entity); err_hdl: <------>v4l2_ctrl_handler_free(&state->hdl); <------>return err; } /* ----------------------------------------------------------------------- */ static int adv7511_remove(struct i2c_client *client) { <------>struct v4l2_subdev *sd = i2c_get_clientdata(client); <------>struct adv7511_state *state = get_adv7511_state(sd); <------>state->chip_revision = -1; <------>v4l2_dbg(1, debug, sd, "%s removed @ 0x%x (%s)\n", client->name, <------><------> client->addr << 1, client->adapter->name); <------>adv7511_set_isr(sd, false); <------>adv7511_init_setup(sd); <------>cancel_delayed_work_sync(&state->edid_handler); <------>i2c_unregister_device(state->i2c_edid); <------>i2c_unregister_device(state->i2c_cec); <------>i2c_unregister_device(state->i2c_pktmem); <------>destroy_workqueue(state->work_queue); <------>v4l2_device_unregister_subdev(sd); <------>media_entity_cleanup(&sd->entity); <------>v4l2_ctrl_handler_free(sd->ctrl_handler); <------>return 0; } /* ----------------------------------------------------------------------- */ static const struct i2c_device_id adv7511_id[] = { <------>{ "adv7511-v4l2", 0 }, <------>{ } }; MODULE_DEVICE_TABLE(i2c, adv7511_id); static struct i2c_driver adv7511_driver = { <------>.driver = { <------><------>.name = "adv7511-v4l2", <------>}, <------>.probe = adv7511_probe, <------>.remove = adv7511_remove, <------>.id_table = adv7511_id, }; module_i2c_driver(adv7511_driver);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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