Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Driver for AK8813 / AK8814 TV-ecoders from Asahi Kasei Microsystems Co., Ltd. (AKM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/videodev2.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <media/i2c/ak881x.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <media/v4l2-common.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <media/v4l2-device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #define AK881X_INTERFACE_MODE	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #define AK881X_VIDEO_PROCESS1	1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #define AK881X_VIDEO_PROCESS2	2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #define AK881X_VIDEO_PROCESS3	3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #define AK881X_DAC_MODE		5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #define AK881X_STATUS		0x24
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #define AK881X_DEVICE_ID	0x25
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #define AK881X_DEVICE_REVISION	0x26
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) struct ak881x {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	struct v4l2_subdev subdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	struct ak881x_pdata *pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	unsigned int lines;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	char revision;	/* DEVICE_REVISION content */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) static int reg_read(struct i2c_client *client, const u8 reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	return i2c_smbus_read_byte_data(client, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) static int reg_write(struct i2c_client *client, const u8 reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 		     const u8 data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	return i2c_smbus_write_byte_data(client, reg, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) static int reg_set(struct i2c_client *client, const u8 reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 		   const u8 data, u8 mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	int ret = reg_read(client, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	return reg_write(client, reg, (ret & ~mask) | (data & mask));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) static struct ak881x *to_ak881x(const struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	return container_of(i2c_get_clientdata(client), struct ak881x, subdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) #ifdef CONFIG_VIDEO_ADV_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) static int ak881x_g_register(struct v4l2_subdev *sd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 			     struct v4l2_dbg_register *reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	struct i2c_client *client = v4l2_get_subdevdata(sd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	if (reg->reg > 0x26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	reg->size = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	reg->val = reg_read(client, reg->reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	if (reg->val > 0xffff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 		return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) static int ak881x_s_register(struct v4l2_subdev *sd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 			     const struct v4l2_dbg_register *reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	struct i2c_client *client = v4l2_get_subdevdata(sd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	if (reg->reg > 0x26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	if (reg_write(client, reg->reg, reg->val) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 		return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) static int ak881x_fill_fmt(struct v4l2_subdev *sd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		struct v4l2_subdev_pad_config *cfg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 		struct v4l2_subdev_format *format)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	struct v4l2_mbus_framefmt *mf = &format->format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	struct i2c_client *client = v4l2_get_subdevdata(sd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	struct ak881x *ak881x = to_ak881x(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	if (format->pad)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	v4l_bound_align_image(&mf->width, 0, 720, 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 			      &mf->height, 0, ak881x->lines, 1, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	mf->field	= V4L2_FIELD_INTERLACED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	mf->code	= MEDIA_BUS_FMT_YUYV8_2X8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	mf->colorspace	= V4L2_COLORSPACE_SMPTE170M;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static int ak881x_enum_mbus_code(struct v4l2_subdev *sd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 		struct v4l2_subdev_pad_config *cfg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 		struct v4l2_subdev_mbus_code_enum *code)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	if (code->pad || code->index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	code->code = MEDIA_BUS_FMT_YUYV8_2X8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) static int ak881x_get_selection(struct v4l2_subdev *sd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 				struct v4l2_subdev_pad_config *cfg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 				struct v4l2_subdev_selection *sel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	struct i2c_client *client = v4l2_get_subdevdata(sd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	struct ak881x *ak881x = to_ak881x(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	switch (sel->target) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	case V4L2_SEL_TGT_CROP_BOUNDS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 		sel->r.left = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 		sel->r.top = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 		sel->r.width = 720;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 		sel->r.height = ak881x->lines;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) static int ak881x_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	struct i2c_client *client = v4l2_get_subdevdata(sd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	struct ak881x *ak881x = to_ak881x(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	u8 vp1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	if (std == V4L2_STD_NTSC_443) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		vp1 = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		ak881x->lines = 480;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	} else if (std == V4L2_STD_PAL_M) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		vp1 = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 		ak881x->lines = 480;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	} else if (std == V4L2_STD_PAL_60) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		vp1 = 7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		ak881x->lines = 480;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	} else if (std & V4L2_STD_NTSC) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 		vp1 = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 		ak881x->lines = 480;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	} else if (std & V4L2_STD_PAL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		vp1 = 0xf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 		ak881x->lines = 576;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 		/* No SECAM or PAL_N/Nc supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	reg_set(client, AK881X_VIDEO_PROCESS1, vp1, 0xf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) static int ak881x_s_stream(struct v4l2_subdev *sd, int enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	struct i2c_client *client = v4l2_get_subdevdata(sd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	struct ak881x *ak881x = to_ak881x(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	if (enable) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		u8 dac;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		/* For colour-bar testing set bit 6 of AK881X_VIDEO_PROCESS1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		/* Default: composite output */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		if (ak881x->pdata->flags & AK881X_COMPONENT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 			dac = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 			dac = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		/* Turn on the DAC(s) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		reg_write(client, AK881X_DAC_MODE, dac);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 		dev_dbg(&client->dev, "chip status 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 			reg_read(client, AK881X_STATUS));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 		/* ...and clear bit 6 of AK881X_VIDEO_PROCESS1 here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 		reg_write(client, AK881X_DAC_MODE, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 		dev_dbg(&client->dev, "chip status 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 			reg_read(client, AK881X_STATUS));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) static const struct v4l2_subdev_core_ops ak881x_subdev_core_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) #ifdef CONFIG_VIDEO_ADV_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	.g_register	= ak881x_g_register,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	.s_register	= ak881x_s_register,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) static const struct v4l2_subdev_video_ops ak881x_subdev_video_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	.s_std_output	= ak881x_s_std_output,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	.s_stream	= ak881x_s_stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) static const struct v4l2_subdev_pad_ops ak881x_subdev_pad_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	.enum_mbus_code = ak881x_enum_mbus_code,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	.get_selection	= ak881x_get_selection,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	.set_fmt	= ak881x_fill_fmt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	.get_fmt	= ak881x_fill_fmt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) static const struct v4l2_subdev_ops ak881x_subdev_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	.core	= &ak881x_subdev_core_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	.video	= &ak881x_subdev_video_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	.pad	= &ak881x_subdev_pad_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) static int ak881x_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 			const struct i2c_device_id *did)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	struct i2c_adapter *adapter = client->adapter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	struct ak881x *ak881x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	u8 ifmode, data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		dev_warn(&adapter->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 			 "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 		return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	ak881x = devm_kzalloc(&client->dev, sizeof(*ak881x), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	if (!ak881x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	v4l2_i2c_subdev_init(&ak881x->subdev, client, &ak881x_subdev_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	data = reg_read(client, AK881X_DEVICE_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	switch (data) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	case 0x13:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	case 0x14:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 		dev_err(&client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 			"No ak881x chip detected, register read %x\n", data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	ak881x->revision = reg_read(client, AK881X_DEVICE_REVISION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	ak881x->pdata = client->dev.platform_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	if (ak881x->pdata) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 		if (ak881x->pdata->flags & AK881X_FIELD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 			ifmode = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 			ifmode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 		switch (ak881x->pdata->flags & AK881X_IF_MODE_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 		case AK881X_IF_MODE_BT656:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 			ifmode |= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 		case AK881X_IF_MODE_MASTER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 			ifmode |= 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 		case AK881X_IF_MODE_SLAVE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 		default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 		dev_dbg(&client->dev, "IF mode %x\n", ifmode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 		 * "Line Blanking No." seems to be the same as the number of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 		 * "black" lines on, e.g., SuperH VOU, whose default value of 20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 		 * "incidentally" matches ak881x' default
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 		reg_write(client, AK881X_INTERFACE_MODE, ifmode | (20 << 3));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	/* Hardware default: NTSC-M */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	ak881x->lines = 480;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	dev_info(&client->dev, "Detected an ak881x chip ID %x, revision %x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 		 data, ak881x->revision);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) static int ak881x_remove(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 	struct ak881x *ak881x = to_ak881x(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	v4l2_device_unregister_subdev(&ak881x->subdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) static const struct i2c_device_id ak881x_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	{ "ak8813", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	{ "ak8814", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) MODULE_DEVICE_TABLE(i2c, ak881x_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) static struct i2c_driver ak881x_i2c_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 		.name = "ak881x",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	.probe		= ak881x_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	.remove		= ak881x_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	.id_table	= ak881x_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) module_i2c_driver(ak881x_i2c_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) MODULE_DESCRIPTION("TV-output driver for ak8813/ak8814");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) MODULE_LICENSE("GPL v2");