obj-$(CONFIG_VIDEO_ADV7604) += adv7604.o
obj-$(CONFIG_VIDEO_ADV7842) += adv7842.o
obj-$(CONFIG_VIDEO_AD9389B) += ad9389b.o
-obj-$(CONFIG_VIDEO_ADV7511) += adv7511.o
+obj-$(CONFIG_VIDEO_ADV7511) += adv7511-v4l2.o
obj-$(CONFIG_VIDEO_VPX3220) += vpx3220.o
obj-$(CONFIG_VIDEO_VS6624) += vs6624.o
obj-$(CONFIG_VIDEO_BT819) += bt819.o
--- /dev/null
+/*
+ * Analog Devices ADV7511 HDMI Transmitter Device 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.
+ */
+
+/*
+ * 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;
+ }
+ /* fall through */
+ 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;
+ }
+ /* fall through */
+ 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) < 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, 0x07);
+ adv7511_cec_write(sd, 0x4a, 0);
+ 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);
+
+ /* blocking, clear cec tx irq status */
+ adv7511_wr_and_or(sd, 0x97, 0xc7, 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;
+
+ adv7511_wr_and_or(sd, 0x95, 0xc0,
+ (state->cec_enabled_adap && enable) ? 0x39 : 0x00);
+
+ /*
+ * 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)
+ return;
+ v4l2_err(sd, "Could not set interrupts: hw failure?\n");
+}
+
+/* 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, 1); /* toggle to re-enable rx 1 */
+ adv7511_cec_write(sd, 0x4a, 0);
+ 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_ADOBERGB:
+ c = HDMI_COLORIMETRY_EXTENDED;
+ ec = y ? HDMI_EXTENDED_COLORIMETRY_ADOBE_YCC_601 :
+ HDMI_EXTENDED_COLORIMETRY_ADOBE_RGB;
+ 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);
+
+ 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;
+ 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(client->adapter,
+ state->i2c_edid_addr >> 1);
+ if (state->i2c_edid == NULL) {
+ v4l2_err(sd, "failed to register edid i2c client\n");
+ err = -ENOMEM;
+ 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(client->adapter,
+ state->i2c_cec_addr >> 1);
+ if (state->i2c_cec == NULL) {
+ v4l2_err(sd, "failed to register cec i2c client\n");
+ err = -ENOMEM;
+ 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(client->adapter, state->i2c_pktmem_addr >> 1);
+ if (state->i2c_pktmem == NULL) {
+ v4l2_err(sd, "failed to register pktmem i2c client\n");
+ err = -ENOMEM;
+ 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:
+ if (state->i2c_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(&state->edid_handler);
+ i2c_unregister_device(state->i2c_edid);
+ if (state->i2c_cec)
+ 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", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, adv7511_id);
+
+static struct i2c_driver adv7511_driver = {
+ .driver = {
+ .name = "adv7511",
+ },
+ .probe = adv7511_probe,
+ .remove = adv7511_remove,
+ .id_table = adv7511_id,
+};
+
+module_i2c_driver(adv7511_driver);
+++ /dev/null
-/*
- * Analog Devices ADV7511 HDMI Transmitter Device 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.
- */
-
-
-#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;
- }
- /* fall through */
- 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;
- }
- /* fall through */
- 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) < 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, 0x07);
- adv7511_cec_write(sd, 0x4a, 0);
- 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);
-
- /* blocking, clear cec tx irq status */
- adv7511_wr_and_or(sd, 0x97, 0xc7, 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;
-
- adv7511_wr_and_or(sd, 0x95, 0xc0,
- (state->cec_enabled_adap && enable) ? 0x39 : 0x00);
-
- /*
- * 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)
- return;
- v4l2_err(sd, "Could not set interrupts: hw failure?\n");
-}
-
-/* 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, 1); /* toggle to re-enable rx 1 */
- adv7511_cec_write(sd, 0x4a, 0);
- 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_ADOBERGB:
- c = HDMI_COLORIMETRY_EXTENDED;
- ec = y ? HDMI_EXTENDED_COLORIMETRY_ADOBE_YCC_601 :
- HDMI_EXTENDED_COLORIMETRY_ADOBE_RGB;
- 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);
-
- 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;
- 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(client->adapter,
- state->i2c_edid_addr >> 1);
- if (state->i2c_edid == NULL) {
- v4l2_err(sd, "failed to register edid i2c client\n");
- err = -ENOMEM;
- 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(client->adapter,
- state->i2c_cec_addr >> 1);
- if (state->i2c_cec == NULL) {
- v4l2_err(sd, "failed to register cec i2c client\n");
- err = -ENOMEM;
- 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(client->adapter, state->i2c_pktmem_addr >> 1);
- if (state->i2c_pktmem == NULL) {
- v4l2_err(sd, "failed to register pktmem i2c client\n");
- err = -ENOMEM;
- 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:
- if (state->i2c_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(&state->edid_handler);
- i2c_unregister_device(state->i2c_edid);
- if (state->i2c_cec)
- 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", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, adv7511_id);
-
-static struct i2c_driver adv7511_driver = {
- .driver = {
- .name = "adv7511",
- },
- .probe = adv7511_probe,
- .remove = adv7511_remove,
- .id_table = adv7511_id,
-};
-
-module_i2c_driver(adv7511_driver);
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff