--- /dev/null
+/*
+ * adv7343 - ADV7343 Video Encoder Driver
+ *
+ * The encoder hardware does not support SECAM.
+ *
+ * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed .as is. WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/ctype.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/videodev2.h>
+#include <linux/uaccess.h>
+#include <linux/of.h>
+#include <linux/of_graph.h>
+
+#include <media/adv7343.h>
+#include <media/v4l2-async.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+
+#include "adv7343_regs.h"
+
+MODULE_DESCRIPTION("ADV7343 video encoder driver");
+MODULE_LICENSE("GPL");
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Debug level 0-1");
+
+struct adv7343_state {
+ struct v4l2_subdev sd;
+ struct v4l2_ctrl_handler hdl;
+ const struct adv7343_platform_data *pdata;
+ u8 reg00;
+ u8 reg01;
+ u8 reg02;
+ u8 reg35;
+ u8 reg80;
+ u8 reg82;
+ u32 output;
+ v4l2_std_id std;
+};
+
+static inline struct adv7343_state *to_state(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct adv7343_state, sd);
+}
+
+static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
+{
+ return &container_of(ctrl->handler, struct adv7343_state, hdl)->sd;
+}
+
+static inline int adv7343_write(struct v4l2_subdev *sd, u8 reg, u8 value)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static const u8 adv7343_init_reg_val[] = {
+ ADV7343_SOFT_RESET, ADV7343_SOFT_RESET_DEFAULT,
+ ADV7343_POWER_MODE_REG, ADV7343_POWER_MODE_REG_DEFAULT,
+
+ ADV7343_HD_MODE_REG1, ADV7343_HD_MODE_REG1_DEFAULT,
+ ADV7343_HD_MODE_REG2, ADV7343_HD_MODE_REG2_DEFAULT,
+ ADV7343_HD_MODE_REG3, ADV7343_HD_MODE_REG3_DEFAULT,
+ ADV7343_HD_MODE_REG4, ADV7343_HD_MODE_REG4_DEFAULT,
+ ADV7343_HD_MODE_REG5, ADV7343_HD_MODE_REG5_DEFAULT,
+ ADV7343_HD_MODE_REG6, ADV7343_HD_MODE_REG6_DEFAULT,
+ ADV7343_HD_MODE_REG7, ADV7343_HD_MODE_REG7_DEFAULT,
+
+ ADV7343_SD_MODE_REG1, ADV7343_SD_MODE_REG1_DEFAULT,
+ ADV7343_SD_MODE_REG2, ADV7343_SD_MODE_REG2_DEFAULT,
+ ADV7343_SD_MODE_REG3, ADV7343_SD_MODE_REG3_DEFAULT,
+ ADV7343_SD_MODE_REG4, ADV7343_SD_MODE_REG4_DEFAULT,
+ ADV7343_SD_MODE_REG5, ADV7343_SD_MODE_REG5_DEFAULT,
+ ADV7343_SD_MODE_REG6, ADV7343_SD_MODE_REG6_DEFAULT,
+ ADV7343_SD_MODE_REG7, ADV7343_SD_MODE_REG7_DEFAULT,
+ ADV7343_SD_MODE_REG8, ADV7343_SD_MODE_REG8_DEFAULT,
+
+ ADV7343_SD_HUE_REG, ADV7343_SD_HUE_REG_DEFAULT,
+ ADV7343_SD_CGMS_WSS0, ADV7343_SD_CGMS_WSS0_DEFAULT,
+ ADV7343_SD_BRIGHTNESS_WSS, ADV7343_SD_BRIGHTNESS_WSS_DEFAULT,
+};
+
+/*
+ * 2^32
+ * FSC(reg) = FSC (HZ) * --------
+ * 27000000
+ */
+static const struct adv7343_std_info stdinfo[] = {
+ {
+ /* FSC(Hz) = 3,579,545.45 Hz */
+ SD_STD_NTSC, 569408542, V4L2_STD_NTSC,
+ }, {
+ /* FSC(Hz) = 3,575,611.00 Hz */
+ SD_STD_PAL_M, 568782678, V4L2_STD_PAL_M,
+ }, {
+ /* FSC(Hz) = 3,582,056.00 */
+ SD_STD_PAL_N, 569807903, V4L2_STD_PAL_Nc,
+ }, {
+ /* FSC(Hz) = 4,433,618.75 Hz */
+ SD_STD_PAL_N, 705268427, V4L2_STD_PAL_N,
+ }, {
+ /* FSC(Hz) = 4,433,618.75 Hz */
+ SD_STD_PAL_BDGHI, 705268427, V4L2_STD_PAL,
+ }, {
+ /* FSC(Hz) = 4,433,618.75 Hz */
+ SD_STD_NTSC, 705268427, V4L2_STD_NTSC_443,
+ }, {
+ /* FSC(Hz) = 4,433,618.75 Hz */
+ SD_STD_PAL_M, 705268427, V4L2_STD_PAL_60,
+ },
+};
+
+static int adv7343_setstd(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+ struct adv7343_state *state = to_state(sd);
+ struct adv7343_std_info *std_info;
+ int num_std;
+ char *fsc_ptr;
+ u8 reg, val;
+ int err = 0;
+ int i = 0;
+
+ std_info = (struct adv7343_std_info *)stdinfo;
+ num_std = ARRAY_SIZE(stdinfo);
+
+ for (i = 0; i < num_std; i++) {
+ if (std_info[i].stdid & std)
+ break;
+ }
+
+ if (i == num_std) {
+ v4l2_dbg(1, debug, sd,
+ "Invalid std or std is not supported: %llx\n",
+ (unsigned long long)std);
+ return -EINVAL;
+ }
+
+ /* Set the standard */
+ val = state->reg80 & (~(SD_STD_MASK));
+ val |= std_info[i].standard_val3;
+ err = adv7343_write(sd, ADV7343_SD_MODE_REG1, val);
+ if (err < 0)
+ goto setstd_exit;
+
+ state->reg80 = val;
+
+ /* Configure the input mode register */
+ val = state->reg01 & (~((u8) INPUT_MODE_MASK));
+ val |= SD_INPUT_MODE;
+ err = adv7343_write(sd, ADV7343_MODE_SELECT_REG, val);
+ if (err < 0)
+ goto setstd_exit;
+
+ state->reg01 = val;
+
+ /* Program the sub carrier frequency registers */
+ fsc_ptr = (unsigned char *)&std_info[i].fsc_val;
+ reg = ADV7343_FSC_REG0;
+ for (i = 0; i < 4; i++, reg++, fsc_ptr++) {
+ err = adv7343_write(sd, reg, *fsc_ptr);
+ if (err < 0)
+ goto setstd_exit;
+ }
+
+ val = state->reg80;
+
+ /* Filter settings */
+ if (std & (V4L2_STD_NTSC | V4L2_STD_NTSC_443))
+ val &= 0x03;
+ else if (std & ~V4L2_STD_SECAM)
+ val |= 0x04;
+
+ err = adv7343_write(sd, ADV7343_SD_MODE_REG1, val);
+ if (err < 0)
+ goto setstd_exit;
+
+ state->reg80 = val;
+
+setstd_exit:
+ if (err != 0)
+ v4l2_err(sd, "Error setting std, write failed\n");
+
+ return err;
+}
+
+static int adv7343_setoutput(struct v4l2_subdev *sd, u32 output_type)
+{
+ struct adv7343_state *state = to_state(sd);
+ unsigned char val;
+ int err = 0;
+
+ if (output_type > ADV7343_SVIDEO_ID) {
+ v4l2_dbg(1, debug, sd,
+ "Invalid output type or output type not supported:%d\n",
+ output_type);
+ return -EINVAL;
+ }
+
+ /* Enable Appropriate DAC */
+ val = state->reg00 & 0x03;
+
+ /* configure default configuration */
+ if (!state->pdata)
+ if (output_type == ADV7343_COMPOSITE_ID)
+ val |= ADV7343_COMPOSITE_POWER_VALUE;
+ else if (output_type == ADV7343_COMPONENT_ID)
+ val |= ADV7343_COMPONENT_POWER_VALUE;
+ else
+ val |= ADV7343_SVIDEO_POWER_VALUE;
+ else
+ val = state->pdata->mode_config.sleep_mode << 0 |
+ state->pdata->mode_config.pll_control << 1 |
+ state->pdata->mode_config.dac[2] << 2 |
+ state->pdata->mode_config.dac[1] << 3 |
+ state->pdata->mode_config.dac[0] << 4 |
+ state->pdata->mode_config.dac[5] << 5 |
+ state->pdata->mode_config.dac[4] << 6 |
+ state->pdata->mode_config.dac[3] << 7;
+
+ err = adv7343_write(sd, ADV7343_POWER_MODE_REG, val);
+ if (err < 0)
+ goto setoutput_exit;
+
+ state->reg00 = val;
+
+ /* Enable YUV output */
+ val = state->reg02 | YUV_OUTPUT_SELECT;
+ err = adv7343_write(sd, ADV7343_MODE_REG0, val);
+ if (err < 0)
+ goto setoutput_exit;
+
+ state->reg02 = val;
+
+ /* configure SD DAC Output 2 and SD DAC Output 1 bit to zero */
+ val = state->reg82 & (SD_DAC_1_DI & SD_DAC_2_DI);
+
+ if (state->pdata && state->pdata->sd_config.sd_dac_out[0])
+ val = val | (state->pdata->sd_config.sd_dac_out[0] << 1);
+ else if (state->pdata && !state->pdata->sd_config.sd_dac_out[0])
+ val = val & ~(state->pdata->sd_config.sd_dac_out[0] << 1);
+
+ if (state->pdata && state->pdata->sd_config.sd_dac_out[1])
+ val = val | (state->pdata->sd_config.sd_dac_out[1] << 2);
+ else if (state->pdata && !state->pdata->sd_config.sd_dac_out[1])
+ val = val & ~(state->pdata->sd_config.sd_dac_out[1] << 2);
+
+ err = adv7343_write(sd, ADV7343_SD_MODE_REG2, val);
+ if (err < 0)
+ goto setoutput_exit;
+
+ state->reg82 = val;
+
+ /* configure ED/HD Color DAC Swap and ED/HD RGB Input Enable bit to
+ * zero */
+ val = state->reg35 & (HD_RGB_INPUT_DI & HD_DAC_SWAP_DI);
+ err = adv7343_write(sd, ADV7343_HD_MODE_REG6, val);
+ if (err < 0)
+ goto setoutput_exit;
+
+ state->reg35 = val;
+
+setoutput_exit:
+ if (err != 0)
+ v4l2_err(sd, "Error setting output, write failed\n");
+
+ return err;
+}
+
+static int adv7343_log_status(struct v4l2_subdev *sd)
+{
+ struct adv7343_state *state = to_state(sd);
+
+ v4l2_info(sd, "Standard: %llx\n", (unsigned long long)state->std);
+ v4l2_info(sd, "Output: %s\n", (state->output == 0) ? "Composite" :
+ ((state->output == 1) ? "Component" : "S-Video"));
+ return 0;
+}
+
+static int adv7343_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct v4l2_subdev *sd = to_sd(ctrl);
+
+ switch (ctrl->id) {
+ case V4L2_CID_BRIGHTNESS:
+ return adv7343_write(sd, ADV7343_SD_BRIGHTNESS_WSS,
+ ctrl->val);
+
+ case V4L2_CID_HUE:
+ return adv7343_write(sd, ADV7343_SD_HUE_REG, ctrl->val);
+
+ case V4L2_CID_GAIN:
+ return adv7343_write(sd, ADV7343_DAC2_OUTPUT_LEVEL, ctrl->val);
+ }
+ return -EINVAL;
+}
+
+static const struct v4l2_ctrl_ops adv7343_ctrl_ops = {
+ .s_ctrl = adv7343_s_ctrl,
+};
+
+static const struct v4l2_subdev_core_ops adv7343_core_ops = {
+ .log_status = adv7343_log_status,
+ .g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
+ .try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
+ .s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
+ .g_ctrl = v4l2_subdev_g_ctrl,
+ .s_ctrl = v4l2_subdev_s_ctrl,
+ .queryctrl = v4l2_subdev_queryctrl,
+ .querymenu = v4l2_subdev_querymenu,
+};
+
+static int adv7343_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+ struct adv7343_state *state = to_state(sd);
+ int err = 0;
+
+ if (state->std == std)
+ return 0;
+
+ err = adv7343_setstd(sd, std);
+ if (!err)
+ state->std = std;
+
+ return err;
+}
+
+static int adv7343_s_routing(struct v4l2_subdev *sd,
+ u32 input, u32 output, u32 config)
+{
+ struct adv7343_state *state = to_state(sd);
+ int err = 0;
+
+ if (state->output == output)
+ return 0;
+
+ err = adv7343_setoutput(sd, output);
+ if (!err)
+ state->output = output;
+
+ return err;
+}
+
+static const struct v4l2_subdev_video_ops adv7343_video_ops = {
+ .s_std_output = adv7343_s_std_output,
+ .s_routing = adv7343_s_routing,
+};
+
+static const struct v4l2_subdev_ops adv7343_ops = {
+ .core = &adv7343_core_ops,
+ .video = &adv7343_video_ops,
+};
+
+static int adv7343_initialize(struct v4l2_subdev *sd)
+{
+ struct adv7343_state *state = to_state(sd);
+ int err = 0;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(adv7343_init_reg_val); i += 2) {
+
+ err = adv7343_write(sd, adv7343_init_reg_val[i],
+ adv7343_init_reg_val[i+1]);
+ if (err) {
+ v4l2_err(sd, "Error initializing\n");
+ return err;
+ }
+ }
+
+ /* Configure for default video standard */
+ err = adv7343_setoutput(sd, state->output);
+ if (err < 0) {
+ v4l2_err(sd, "Error setting output during init\n");
+ return -EINVAL;
+ }
+
+ err = adv7343_setstd(sd, state->std);
+ if (err < 0) {
+ v4l2_err(sd, "Error setting std during init\n");
+ return -EINVAL;
+ }
+
+ return err;
+}
+
+static struct adv7343_platform_data *
+adv7343_get_pdata(struct i2c_client *client)
+{
+ struct adv7343_platform_data *pdata;
+ struct device_node *np;
+
+ if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node)
+ return client->dev.platform_data;
+
+ np = of_graph_get_next_endpoint(client->dev.of_node, NULL);
+ if (!np)
+ return NULL;
+
+ pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ goto done;
+
+ pdata->mode_config.sleep_mode =
+ of_property_read_bool(np, "adi,power-mode-sleep-mode");
+
+ pdata->mode_config.pll_control =
+ of_property_read_bool(np, "adi,power-mode-pll-ctrl");
+
+ of_property_read_u32_array(np, "adi,dac-enable",
+ pdata->mode_config.dac, 6);
+
+ of_property_read_u32_array(np, "adi,sd-dac-enable",
+ pdata->sd_config.sd_dac_out, 2);
+
+done:
+ of_node_put(np);
+ return pdata;
+}
+
+static int adv7343_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct adv7343_state *state;
+ int err;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -ENODEV;
+
+ v4l_info(client, "chip found @ 0x%x (%s)\n",
+ client->addr << 1, client->adapter->name);
+
+ state = devm_kzalloc(&client->dev, sizeof(struct adv7343_state),
+ GFP_KERNEL);
+ if (state == NULL)
+ return -ENOMEM;
+
+ /* Copy board specific information here */
+ state->pdata = adv7343_get_pdata(client);
+
+ state->reg00 = 0x80;
+ state->reg01 = 0x00;
+ state->reg02 = 0x20;
+ state->reg35 = 0x00;
+ state->reg80 = ADV7343_SD_MODE_REG1_DEFAULT;
+ state->reg82 = ADV7343_SD_MODE_REG2_DEFAULT;
+
+ state->output = ADV7343_COMPOSITE_ID;
+ state->std = V4L2_STD_NTSC;
+
+ v4l2_i2c_subdev_init(&state->sd, client, &adv7343_ops);
+
+ v4l2_ctrl_handler_init(&state->hdl, 2);
+ v4l2_ctrl_new_std(&state->hdl, &adv7343_ctrl_ops,
+ V4L2_CID_BRIGHTNESS, ADV7343_BRIGHTNESS_MIN,
+ ADV7343_BRIGHTNESS_MAX, 1,
+ ADV7343_BRIGHTNESS_DEF);
+ v4l2_ctrl_new_std(&state->hdl, &adv7343_ctrl_ops,
+ V4L2_CID_HUE, ADV7343_HUE_MIN,
+ ADV7343_HUE_MAX, 1,
+ ADV7343_HUE_DEF);
+ v4l2_ctrl_new_std(&state->hdl, &adv7343_ctrl_ops,
+ V4L2_CID_GAIN, ADV7343_GAIN_MIN,
+ ADV7343_GAIN_MAX, 1,
+ ADV7343_GAIN_DEF);
+ state->sd.ctrl_handler = &state->hdl;
+ if (state->hdl.error) {
+ err = state->hdl.error;
+ goto done;
+ }
+ v4l2_ctrl_handler_setup(&state->hdl);
+
+ err = adv7343_initialize(&state->sd);
+ if (err)
+ goto done;
+
+ err = v4l2_async_register_subdev(&state->sd);
+
+done:
+ if (err < 0)
+ v4l2_ctrl_handler_free(&state->hdl);
+
+ return err;
+}
+
+static int adv7343_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct adv7343_state *state = to_state(sd);
+
+ v4l2_async_unregister_subdev(&state->sd);
+ v4l2_ctrl_handler_free(&state->hdl);
+
+ return 0;
+}
+
+static const struct i2c_device_id adv7343_id[] = {
+ {"adv7343", 0},
+ {},
+};
+
+MODULE_DEVICE_TABLE(i2c, adv7343_id);
+
+#if IS_ENABLED(CONFIG_OF)
+static const struct of_device_id adv7343_of_match[] = {
+ {.compatible = "adi,adv7343", },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, adv7343_of_match);
+#endif
+
+static struct i2c_driver adv7343_driver = {
+ .driver = {
+ .of_match_table = of_match_ptr(adv7343_of_match),
+ .owner = THIS_MODULE,
+ .name = "adv7343",
+ },
+ .probe = adv7343_probe,
+ .remove = adv7343_remove,
+ .id_table = adv7343_id,
+};
+
+module_i2c_driver(adv7343_driver);
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