[media] move i2c files into drivers/media/i2c

Move ancillary I2C drivers into drivers/media/i2c, in order to
better organize them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 476 insertions, 0 deletions

diff --git a/drivers/media/i2c/adv7343.c b/drivers/media/i2c/adv7343.c
new file mode 100644
index 0000000..2b5aa67
--- /dev/null
+++ b/drivers/media/i2c/adv7343.c
@@ -0,0 +1,476 @@
+/*
+ * 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 <media/adv7343.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.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;
+	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;
+
+	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;
+
+	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);
+	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 int adv7343_g_chip_ident(struct v4l2_subdev *sd,
+				struct v4l2_dbg_chip_ident *chip)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7343, 0);
+}
+
+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_chip_ident = adv7343_g_chip_ident,
+	.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 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 = kzalloc(sizeof(struct adv7343_state), GFP_KERNEL);
+	if (state == NULL)
+		return -ENOMEM;
+
+	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) {
+		int err = state->hdl.error;
+
+		v4l2_ctrl_handler_free(&state->hdl);
+		kfree(state);
+		return err;
+	}
+	v4l2_ctrl_handler_setup(&state->hdl);
+
+	err = adv7343_initialize(&state->sd);
+	if (err) {
+		v4l2_ctrl_handler_free(&state->hdl);
+		kfree(state);
+	}
+	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_device_unregister_subdev(sd);
+	v4l2_ctrl_handler_free(&state->hdl);
+	kfree(state);
+
+	return 0;
+}
+
+static const struct i2c_device_id adv7343_id[] = {
+	{"adv7343", 0},
+	{},
+};
+
+MODULE_DEVICE_TABLE(i2c, adv7343_id);
+
+static struct i2c_driver adv7343_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "adv7343",
+	},
+	.probe		= adv7343_probe,
+	.remove		= adv7343_remove,
+	.id_table	= adv7343_id,
+};
+
+module_i2c_driver(adv7343_driver);