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https://github.com/torvalds/linux
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V4L/DVB (10728): adv7175: convert to v4l2-subdev.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
7d9ef21c2f
commit
35631dcc7f
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@ -268,7 +268,7 @@ static int adv7170_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ide
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_BT866, 0);
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return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7170, 0);
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}
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static int adv7170_command(struct i2c_client *client, unsigned cmd, void *arg)
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@ -30,15 +30,26 @@
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#include <asm/uaccess.h>
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#include <linux/i2c.h>
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#include <linux/i2c-id.h>
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#include <linux/videodev.h>
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#include <linux/video_encoder.h>
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#include <media/v4l2-common.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-chip-ident.h>
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#include <media/v4l2-i2c-drv-legacy.h>
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MODULE_DESCRIPTION("Analog Devices ADV7175 video encoder driver");
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MODULE_AUTHOR("Dave Perks");
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MODULE_LICENSE("GPL");
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#define I2C_ADV7175 0xd4
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#define I2C_ADV7176 0x54
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static unsigned short normal_i2c[] = {
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I2C_ADV7175 >> 1, (I2C_ADV7175 >> 1) + 1,
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I2C_ADV7176 >> 1, (I2C_ADV7176 >> 1) + 1,
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I2C_CLIENT_END
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};
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I2C_CLIENT_INSMOD;
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static int debug;
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module_param(debug, int, 0);
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MODULE_PARM_DESC(debug, "Debug level (0-1)");
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@ -46,34 +57,38 @@ MODULE_PARM_DESC(debug, "Debug level (0-1)");
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/* ----------------------------------------------------------------------- */
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struct adv7175 {
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struct v4l2_subdev sd;
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v4l2_std_id norm;
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int input;
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int bright;
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int contrast;
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int hue;
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int sat;
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};
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#define I2C_ADV7175 0xd4
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#define I2C_ADV7176 0x54
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static inline struct adv7175 *to_adv7175(struct v4l2_subdev *sd)
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{
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return container_of(sd, struct adv7175, sd);
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}
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static char *inputs[] = { "pass_through", "play_back", "color_bar" };
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/* ----------------------------------------------------------------------- */
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static inline int adv7175_write(struct i2c_client *client, u8 reg, u8 value)
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static inline int adv7175_write(struct v4l2_subdev *sd, u8 reg, u8 value)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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return i2c_smbus_write_byte_data(client, reg, value);
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}
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static inline int adv7175_read(struct i2c_client *client, u8 reg)
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static inline int adv7175_read(struct v4l2_subdev *sd, u8 reg)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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return i2c_smbus_read_byte_data(client, reg);
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}
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static int adv7175_write_block(struct i2c_client *client,
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static int adv7175_write_block(struct v4l2_subdev *sd,
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const u8 *data, unsigned int len)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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int ret = -1;
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u8 reg;
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@ -101,7 +116,7 @@ static int adv7175_write_block(struct i2c_client *client,
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/* do some slow I2C emulation kind of thing */
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while (len >= 2) {
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reg = *data++;
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ret = adv7175_write(client, reg, *data++);
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ret = adv7175_write(sd, reg, *data++);
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if (ret < 0)
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break;
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len -= 2;
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@ -111,18 +126,18 @@ static int adv7175_write_block(struct i2c_client *client,
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return ret;
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}
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static void set_subcarrier_freq(struct i2c_client *client, int pass_through)
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static void set_subcarrier_freq(struct v4l2_subdev *sd, int pass_through)
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{
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/* for some reason pass_through NTSC needs
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* a different sub-carrier freq to remain stable. */
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if (pass_through)
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adv7175_write(client, 0x02, 0x00);
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adv7175_write(sd, 0x02, 0x00);
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else
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adv7175_write(client, 0x02, 0x55);
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adv7175_write(sd, 0x02, 0x55);
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adv7175_write(client, 0x03, 0x55);
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adv7175_write(client, 0x04, 0x55);
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adv7175_write(client, 0x05, 0x25);
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adv7175_write(sd, 0x03, 0x55);
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adv7175_write(sd, 0x04, 0x55);
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adv7175_write(sd, 0x05, 0x25);
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}
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/* ----------------------------------------------------------------------- */
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@ -182,144 +197,148 @@ static const unsigned char init_ntsc[] = {
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0x06, 0x1a, /* subc. phase */
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};
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static int adv7175_command(struct i2c_client *client, unsigned cmd, void *arg)
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static int adv7175_init(struct v4l2_subdev *sd, u32 val)
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{
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struct adv7175 *encoder = i2c_get_clientdata(client);
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/* This is just for testing!!! */
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adv7175_write_block(sd, init_common, sizeof(init_common));
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adv7175_write(sd, 0x07, TR0MODE | TR0RST);
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adv7175_write(sd, 0x07, TR0MODE);
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return 0;
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}
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switch (cmd) {
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case VIDIOC_INT_INIT:
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/* This is just for testing!!! */
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adv7175_write_block(client, init_common,
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sizeof(init_common));
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adv7175_write(client, 0x07, TR0MODE | TR0RST);
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adv7175_write(client, 0x07, TR0MODE);
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break;
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static int adv7175_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
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{
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struct adv7175 *encoder = to_adv7175(sd);
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case VIDIOC_INT_S_STD_OUTPUT:
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{
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v4l2_std_id iarg = *(v4l2_std_id *) arg;
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if (iarg & V4L2_STD_NTSC) {
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adv7175_write_block(client, init_ntsc,
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sizeof(init_ntsc));
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if (encoder->input == 0)
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adv7175_write(client, 0x0d, 0x4f); // Enable genlock
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adv7175_write(client, 0x07, TR0MODE | TR0RST);
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adv7175_write(client, 0x07, TR0MODE);
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} else if (iarg & V4L2_STD_PAL) {
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adv7175_write_block(client, init_pal,
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sizeof(init_pal));
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if (encoder->input == 0)
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adv7175_write(client, 0x0d, 0x4f); // Enable genlock
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adv7175_write(client, 0x07, TR0MODE | TR0RST);
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adv7175_write(client, 0x07, TR0MODE);
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} else if (iarg & V4L2_STD_SECAM) {
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/* This is an attempt to convert
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* SECAM->PAL (typically it does not work
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* due to genlock: when decoder is in SECAM
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* and encoder in in PAL the subcarrier can
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* not be syncronized with horizontal
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* quency) */
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adv7175_write_block(client, init_pal,
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sizeof(init_pal));
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if (encoder->input == 0)
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adv7175_write(client, 0x0d, 0x49); // Disable genlock
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adv7175_write(client, 0x07, TR0MODE | TR0RST);
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adv7175_write(client, 0x07, TR0MODE);
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} else {
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v4l_dbg(1, debug, client, "illegal norm: %llx\n", iarg);
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return -EINVAL;
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}
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v4l_dbg(1, debug, client, "switched to %llx\n", iarg);
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encoder->norm = iarg;
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break;
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}
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case VIDIOC_INT_S_VIDEO_ROUTING:
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{
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struct v4l2_routing *route = arg;
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/* RJ: *iarg = 0: input is from SAA7110
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*iarg = 1: input is from ZR36060
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*iarg = 2: color bar */
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switch (route->input) {
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case 0:
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adv7175_write(client, 0x01, 0x00);
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if (encoder->norm & V4L2_STD_NTSC)
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set_subcarrier_freq(client, 1);
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adv7175_write(client, 0x0c, TR1CAPT); /* TR1 */
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if (encoder->norm & V4L2_STD_SECAM)
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adv7175_write(client, 0x0d, 0x49); // Disable genlock
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else
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adv7175_write(client, 0x0d, 0x4f); // Enable genlock
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adv7175_write(client, 0x07, TR0MODE | TR0RST);
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adv7175_write(client, 0x07, TR0MODE);
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//udelay(10);
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break;
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case 1:
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adv7175_write(client, 0x01, 0x00);
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if (encoder->norm & V4L2_STD_NTSC)
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set_subcarrier_freq(client, 0);
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adv7175_write(client, 0x0c, TR1PLAY); /* TR1 */
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adv7175_write(client, 0x0d, 0x49);
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adv7175_write(client, 0x07, TR0MODE | TR0RST);
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adv7175_write(client, 0x07, TR0MODE);
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/* udelay(10); */
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break;
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case 2:
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adv7175_write(client, 0x01, 0x80);
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if (encoder->norm & V4L2_STD_NTSC)
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set_subcarrier_freq(client, 0);
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adv7175_write(client, 0x0d, 0x49);
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adv7175_write(client, 0x07, TR0MODE | TR0RST);
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adv7175_write(client, 0x07, TR0MODE);
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/* udelay(10); */
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break;
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default:
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v4l_dbg(1, debug, client, "illegal input: %d\n", route->input);
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return -EINVAL;
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}
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v4l_dbg(1, debug, client, "switched to %s\n", inputs[route->input]);
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encoder->input = route->input;
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break;
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}
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default:
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if (std & V4L2_STD_NTSC) {
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adv7175_write_block(sd, init_ntsc, sizeof(init_ntsc));
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if (encoder->input == 0)
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adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
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adv7175_write(sd, 0x07, TR0MODE | TR0RST);
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adv7175_write(sd, 0x07, TR0MODE);
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} else if (std & V4L2_STD_PAL) {
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adv7175_write_block(sd, init_pal, sizeof(init_pal));
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if (encoder->input == 0)
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adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
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adv7175_write(sd, 0x07, TR0MODE | TR0RST);
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adv7175_write(sd, 0x07, TR0MODE);
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} else if (std & V4L2_STD_SECAM) {
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/* This is an attempt to convert
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* SECAM->PAL (typically it does not work
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* due to genlock: when decoder is in SECAM
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* and encoder in in PAL the subcarrier can
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* not be syncronized with horizontal
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* quency) */
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adv7175_write_block(sd, init_pal, sizeof(init_pal));
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if (encoder->input == 0)
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adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */
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adv7175_write(sd, 0x07, TR0MODE | TR0RST);
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adv7175_write(sd, 0x07, TR0MODE);
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} else {
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v4l2_dbg(1, debug, sd, "illegal norm: %llx\n", std);
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return -EINVAL;
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}
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v4l2_dbg(1, debug, sd, "switched to %llx\n", std);
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encoder->norm = std;
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return 0;
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}
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static int adv7175_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
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{
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struct adv7175 *encoder = to_adv7175(sd);
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/* RJ: route->input = 0: input is from decoder
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route->input = 1: input is from ZR36060
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route->input = 2: color bar */
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switch (route->input) {
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case 0:
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adv7175_write(sd, 0x01, 0x00);
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if (encoder->norm & V4L2_STD_NTSC)
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set_subcarrier_freq(sd, 1);
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adv7175_write(sd, 0x0c, TR1CAPT); /* TR1 */
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if (encoder->norm & V4L2_STD_SECAM)
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adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */
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else
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adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
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adv7175_write(sd, 0x07, TR0MODE | TR0RST);
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adv7175_write(sd, 0x07, TR0MODE);
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/*udelay(10);*/
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break;
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case 1:
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adv7175_write(sd, 0x01, 0x00);
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if (encoder->norm & V4L2_STD_NTSC)
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set_subcarrier_freq(sd, 0);
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adv7175_write(sd, 0x0c, TR1PLAY); /* TR1 */
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adv7175_write(sd, 0x0d, 0x49);
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adv7175_write(sd, 0x07, TR0MODE | TR0RST);
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adv7175_write(sd, 0x07, TR0MODE);
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/* udelay(10); */
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break;
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case 2:
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adv7175_write(sd, 0x01, 0x80);
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if (encoder->norm & V4L2_STD_NTSC)
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set_subcarrier_freq(sd, 0);
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adv7175_write(sd, 0x0d, 0x49);
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adv7175_write(sd, 0x07, TR0MODE | TR0RST);
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adv7175_write(sd, 0x07, TR0MODE);
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/* udelay(10); */
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break;
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default:
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v4l2_dbg(1, debug, sd, "illegal input: %d\n", route->input);
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return -EINVAL;
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}
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v4l2_dbg(1, debug, sd, "switched to %s\n", inputs[route->input]);
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encoder->input = route->input;
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return 0;
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}
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static int adv7175_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7175, 0);
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}
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static int adv7175_command(struct i2c_client *client, unsigned cmd, void *arg)
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{
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return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
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}
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/* ----------------------------------------------------------------------- */
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/*
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* Generic i2c probe
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* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
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*/
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static unsigned short normal_i2c[] = {
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I2C_ADV7175 >> 1, (I2C_ADV7175 >> 1) + 1,
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I2C_ADV7176 >> 1, (I2C_ADV7176 >> 1) + 1,
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I2C_CLIENT_END
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static const struct v4l2_subdev_core_ops adv7175_core_ops = {
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.g_chip_ident = adv7175_g_chip_ident,
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.init = adv7175_init,
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};
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I2C_CLIENT_INSMOD;
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static const struct v4l2_subdev_video_ops adv7175_video_ops = {
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.s_std_output = adv7175_s_std_output,
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.s_routing = adv7175_s_routing,
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};
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static const struct v4l2_subdev_ops adv7175_ops = {
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.core = &adv7175_core_ops,
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.video = &adv7175_video_ops,
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};
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/* ----------------------------------------------------------------------- */
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static int adv7175_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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int i;
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struct adv7175 *encoder;
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struct v4l2_subdev *sd;
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/* Check if the adapter supports the needed features */
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if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
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@ -331,25 +350,29 @@ static int adv7175_probe(struct i2c_client *client,
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encoder = kzalloc(sizeof(struct adv7175), GFP_KERNEL);
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if (encoder == NULL)
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return -ENOMEM;
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sd = &encoder->sd;
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v4l2_i2c_subdev_init(sd, client, &adv7175_ops);
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encoder->norm = V4L2_STD_NTSC;
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encoder->input = 0;
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i2c_set_clientdata(client, encoder);
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i = adv7175_write_block(client, init_common, sizeof(init_common));
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i = adv7175_write_block(sd, init_common, sizeof(init_common));
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if (i >= 0) {
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i = adv7175_write(client, 0x07, TR0MODE | TR0RST);
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i = adv7175_write(client, 0x07, TR0MODE);
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i = adv7175_read(client, 0x12);
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v4l_dbg(1, debug, client, "revision %d\n", i & 1);
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i = adv7175_write(sd, 0x07, TR0MODE | TR0RST);
|
||||
i = adv7175_write(sd, 0x07, TR0MODE);
|
||||
i = adv7175_read(sd, 0x12);
|
||||
v4l2_dbg(1, debug, sd, "revision %d\n", i & 1);
|
||||
}
|
||||
if (i < 0)
|
||||
v4l_dbg(1, debug, client, "init error 0x%x\n", i);
|
||||
v4l2_dbg(1, debug, sd, "init error 0x%x\n", i);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int adv7175_remove(struct i2c_client *client)
|
||||
{
|
||||
kfree(i2c_get_clientdata(client));
|
||||
struct v4l2_subdev *sd = i2c_get_clientdata(client);
|
||||
|
||||
v4l2_device_unregister_subdev(sd);
|
||||
kfree(to_adv7175(sd));
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue