diff options
Diffstat (limited to 'drivers/media/video/saa7185.c')
-rw-r--r-- | drivers/media/video/saa7185.c | 239 |
1 files changed, 108 insertions, 131 deletions
diff --git a/drivers/media/video/saa7185.c b/drivers/media/video/saa7185.c index 6debb65152e..75747b104d0 100644 --- a/drivers/media/video/saa7185.c +++ b/drivers/media/video/saa7185.c @@ -30,52 +30,58 @@ #include <asm/uaccess.h> #include <linux/i2c.h> #include <linux/i2c-id.h> -#include <linux/videodev.h> -#include <linux/video_encoder.h> -#include <media/v4l2-common.h> -#include <media/v4l2-i2c-drv-legacy.h> +#include <linux/videodev2.h> +#include <media/v4l2-device.h> +#include <media/v4l2-chip-ident.h> +#include <media/v4l2-i2c-drv.h> MODULE_DESCRIPTION("Philips SAA7185 video encoder driver"); MODULE_AUTHOR("Dave Perks"); MODULE_LICENSE("GPL"); - static int debug; module_param(debug, int, 0); MODULE_PARM_DESC(debug, "Debug level (0-1)"); + /* ----------------------------------------------------------------------- */ struct saa7185 { + struct v4l2_subdev sd; unsigned char reg[128]; - int norm; - int enable; - int bright; - int contrast; - int hue; - int sat; + v4l2_std_id norm; }; +static inline struct saa7185 *to_saa7185(struct v4l2_subdev *sd) +{ + return container_of(sd, struct saa7185, sd); +} + /* ----------------------------------------------------------------------- */ -static inline int saa7185_read(struct i2c_client *client) +static inline int saa7185_read(struct v4l2_subdev *sd) { + struct i2c_client *client = v4l2_get_subdevdata(sd); + return i2c_smbus_read_byte(client); } -static int saa7185_write(struct i2c_client *client, u8 reg, u8 value) +static int saa7185_write(struct v4l2_subdev *sd, u8 reg, u8 value) { - struct saa7185 *encoder = i2c_get_clientdata(client); + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct saa7185 *encoder = to_saa7185(sd); - v4l_dbg(1, debug, client, "%02x set to %02x\n", reg, value); + v4l2_dbg(1, debug, sd, "%02x set to %02x\n", reg, value); encoder->reg[reg] = value; return i2c_smbus_write_byte_data(client, reg, value); } -static int saa7185_write_block(struct i2c_client *client, +static int saa7185_write_block(struct v4l2_subdev *sd, const u8 *data, unsigned int len) { + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct saa7185 *encoder = to_saa7185(sd); int ret = -1; u8 reg; @@ -83,7 +89,6 @@ static int saa7185_write_block(struct i2c_client *client, * the adapter understands raw I2C */ if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { /* do raw I2C, not smbus compatible */ - struct saa7185 *encoder = i2c_get_clientdata(client); u8 block_data[32]; int block_len; @@ -104,7 +109,7 @@ static int saa7185_write_block(struct i2c_client *client, /* do some slow I2C emulation kind of thing */ while (len >= 2) { reg = *data++; - ret = saa7185_write(client, reg, *data++); + ret = saa7185_write(sd, reg, *data++); if (ret < 0) break; len -= 2; @@ -213,133 +218,106 @@ static const unsigned char init_ntsc[] = { 0x66, 0x21, /* FSC3 */ }; -static int saa7185_command(struct i2c_client *client, unsigned cmd, void *arg) -{ - struct saa7185 *encoder = i2c_get_clientdata(client); - - switch (cmd) { - case 0: - saa7185_write_block(client, init_common, - sizeof(init_common)); - switch (encoder->norm) { - - case VIDEO_MODE_NTSC: - saa7185_write_block(client, init_ntsc, - sizeof(init_ntsc)); - break; - - case VIDEO_MODE_PAL: - saa7185_write_block(client, init_pal, - sizeof(init_pal)); - break; - } - break; - case ENCODER_GET_CAPABILITIES: - { - struct video_encoder_capability *cap = arg; +static int saa7185_init(struct v4l2_subdev *sd, u32 val) +{ + struct saa7185 *encoder = to_saa7185(sd); - cap->flags = - VIDEO_ENCODER_PAL | VIDEO_ENCODER_NTSC | - VIDEO_ENCODER_SECAM | VIDEO_ENCODER_CCIR; - cap->inputs = 1; - cap->outputs = 1; - break; - } + saa7185_write_block(sd, init_common, sizeof(init_common)); + if (encoder->norm & V4L2_STD_NTSC) + saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc)); + else + saa7185_write_block(sd, init_pal, sizeof(init_pal)); + return 0; +} - case ENCODER_SET_NORM: - { - int *iarg = arg; +static int saa7185_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std) +{ + struct saa7185 *encoder = to_saa7185(sd); - //saa7185_write_block(client, init_common, sizeof(init_common)); + if (std & V4L2_STD_NTSC) + saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc)); + else if (std & V4L2_STD_PAL) + saa7185_write_block(sd, init_pal, sizeof(init_pal)); + else + return -EINVAL; + encoder->norm = std; + return 0; +} - switch (*iarg) { - case VIDEO_MODE_NTSC: - saa7185_write_block(client, init_ntsc, - sizeof(init_ntsc)); - break; +static int saa7185_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route) +{ + struct saa7185 *encoder = to_saa7185(sd); - case VIDEO_MODE_PAL: - saa7185_write_block(client, init_pal, - sizeof(init_pal)); - break; + /* RJ: route->input = 0: input is from SA7111 + route->input = 1: input is from ZR36060 */ - case VIDEO_MODE_SECAM: - default: - return -EINVAL; - } - encoder->norm = *iarg; - break; - } - - case ENCODER_SET_INPUT: - { - int *iarg = arg; - - /* RJ: *iarg = 0: input is from SA7111 - *iarg = 1: input is from ZR36060 */ - - switch (*iarg) { - case 0: - /* Switch RTCE to 1 */ - saa7185_write(client, 0x61, - (encoder->reg[0x61] & 0xf7) | 0x08); - saa7185_write(client, 0x6e, 0x01); - break; - - case 1: - /* Switch RTCE to 0 */ - saa7185_write(client, 0x61, - (encoder->reg[0x61] & 0xf7) | 0x00); - /* SW: a slight sync problem... */ - saa7185_write(client, 0x6e, 0x00); - break; - - default: - return -EINVAL; - } + switch (route->input) { + case 0: + /* turn off colorbar */ + saa7185_write(sd, 0x3a, 0x0f); + /* Switch RTCE to 1 */ + saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08); + saa7185_write(sd, 0x6e, 0x01); break; - } - case ENCODER_SET_OUTPUT: - { - int *iarg = arg; - - /* not much choice of outputs */ - if (*iarg != 0) - return -EINVAL; + case 1: + /* turn off colorbar */ + saa7185_write(sd, 0x3a, 0x0f); + /* Switch RTCE to 0 */ + saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x00); + /* SW: a slight sync problem... */ + saa7185_write(sd, 0x6e, 0x00); break; - } - - case ENCODER_ENABLE_OUTPUT: - { - int *iarg = arg; - encoder->enable = !!*iarg; - saa7185_write(client, 0x61, - (encoder->reg[0x61] & 0xbf) | - (encoder->enable ? 0x00 : 0x40)); + case 2: + /* turn on colorbar */ + saa7185_write(sd, 0x3a, 0x8f); + /* Switch RTCE to 0 */ + saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08); + /* SW: a slight sync problem... */ + saa7185_write(sd, 0x6e, 0x01); break; - } default: return -EINVAL; } - return 0; } +static int saa7185_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_SAA7185, 0); +} + /* ----------------------------------------------------------------------- */ -static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END }; +static const struct v4l2_subdev_core_ops saa7185_core_ops = { + .g_chip_ident = saa7185_g_chip_ident, + .init = saa7185_init, +}; -I2C_CLIENT_INSMOD; +static const struct v4l2_subdev_video_ops saa7185_video_ops = { + .s_std_output = saa7185_s_std_output, + .s_routing = saa7185_s_routing, +}; + +static const struct v4l2_subdev_ops saa7185_ops = { + .core = &saa7185_core_ops, + .video = &saa7185_video_ops, +}; + + +/* ----------------------------------------------------------------------- */ static int saa7185_probe(struct i2c_client *client, const struct i2c_device_id *id) { int i; struct saa7185 *encoder; + struct v4l2_subdev *sd; /* Check if the adapter supports the needed features */ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) @@ -351,28 +329,29 @@ static int saa7185_probe(struct i2c_client *client, encoder = kzalloc(sizeof(struct saa7185), GFP_KERNEL); if (encoder == NULL) return -ENOMEM; - encoder->norm = VIDEO_MODE_NTSC; - encoder->enable = 1; - i2c_set_clientdata(client, encoder); + encoder->norm = V4L2_STD_NTSC; + sd = &encoder->sd; + v4l2_i2c_subdev_init(sd, client, &saa7185_ops); - i = saa7185_write_block(client, init_common, sizeof(init_common)); + i = saa7185_write_block(sd, init_common, sizeof(init_common)); if (i >= 0) - i = saa7185_write_block(client, init_ntsc, sizeof(init_ntsc)); + i = saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc)); if (i < 0) - v4l_dbg(1, debug, client, "init error %d\n", i); + v4l2_dbg(1, debug, sd, "init error %d\n", i); else - v4l_dbg(1, debug, client, "revision 0x%x\n", - saa7185_read(client) >> 5); + v4l2_dbg(1, debug, sd, "revision 0x%x\n", + saa7185_read(sd) >> 5); return 0; } static int saa7185_remove(struct i2c_client *client) { - struct saa7185 *encoder = i2c_get_clientdata(client); - - saa7185_write(client, 0x61, (encoder->reg[0x61]) | 0x40); /* SW: output off is active */ - //saa7185_write(client, 0x3a, (encoder->reg[0x3a]) | 0x80); /* SW: color bar */ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct saa7185 *encoder = to_saa7185(sd); + v4l2_device_unregister_subdev(sd); + /* SW: output off is active */ + saa7185_write(sd, 0x61, (encoder->reg[0x61]) | 0x40); kfree(encoder); return 0; } @@ -387,8 +366,6 @@ MODULE_DEVICE_TABLE(i2c, saa7185_id); static struct v4l2_i2c_driver_data v4l2_i2c_data = { .name = "saa7185", - .driverid = I2C_DRIVERID_SAA7185B, - .command = saa7185_command, .probe = saa7185_probe, .remove = saa7185_remove, .id_table = saa7185_id, |