From 6869ffe80e4d662a99cea70acad087bb71beb21a Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Thu, 18 Dec 2008 12:43:56 -0300 Subject: [PATCH] V4L/DVB (9963): tlv320aic23b: convert to v4l2_subdev. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/tlv320aic23b.c | 141 ++++++++++++++++++----------- 1 file changed, 87 insertions(+), 54 deletions(-) diff --git a/drivers/media/video/tlv320aic23b.c b/drivers/media/video/tlv320aic23b.c index 281065b9dd2..5c95ecd09dc 100644 --- a/drivers/media/video/tlv320aic23b.c +++ b/drivers/media/video/tlv320aic23b.c @@ -30,7 +30,7 @@ #include #include #include -#include +#include #include MODULE_DESCRIPTION("tlv320aic23b driver"); @@ -44,15 +44,22 @@ I2C_CLIENT_INSMOD; /* ----------------------------------------------------------------------- */ struct tlv320aic23b_state { + struct v4l2_subdev sd; u8 muted; }; -static int tlv320aic23b_write(struct i2c_client *client, int reg, u16 val) +static inline struct tlv320aic23b_state *to_state(struct v4l2_subdev *sd) { + return container_of(sd, struct tlv320aic23b_state, sd); +} + +static int tlv320aic23b_write(struct v4l2_subdev *sd, int reg, u16 val) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); int i; if ((reg < 0 || reg > 9) && (reg != 15)) { - v4l_err(client, "Invalid register R%d\n", reg); + v4l2_err(sd, "Invalid register R%d\n", reg); return -1; } @@ -60,61 +67,82 @@ static int tlv320aic23b_write(struct i2c_client *client, int reg, u16 val) if (i2c_smbus_write_byte_data(client, (reg << 1) | (val >> 8), val & 0xff) == 0) return 0; - v4l_err(client, "I2C: cannot write %03x to register R%d\n", val, reg); + v4l2_err(sd, "I2C: cannot write %03x to register R%d\n", val, reg); return -1; } -static int tlv320aic23b_command(struct i2c_client *client, - unsigned int cmd, void *arg) +static int tlv320aic23b_s_clock_freq(struct v4l2_subdev *sd, u32 freq) { - struct tlv320aic23b_state *state = i2c_get_clientdata(client); - struct v4l2_control *ctrl = arg; - u32 *freq = arg; - - switch (cmd) { - case VIDIOC_INT_AUDIO_CLOCK_FREQ: - switch (*freq) { - case 32000: /* set sample rate to 32 kHz */ - tlv320aic23b_write(client, 8, 0x018); - break; - case 44100: /* set sample rate to 44.1 kHz */ - tlv320aic23b_write(client, 8, 0x022); - break; - case 48000: /* set sample rate to 48 kHz */ - tlv320aic23b_write(client, 8, 0x000); - break; - default: - return -EINVAL; - } - break; - - case VIDIOC_G_CTRL: - if (ctrl->id != V4L2_CID_AUDIO_MUTE) - return -EINVAL; - ctrl->value = state->muted; + switch (freq) { + case 32000: /* set sample rate to 32 kHz */ + tlv320aic23b_write(sd, 8, 0x018); break; - - case VIDIOC_S_CTRL: - if (ctrl->id != V4L2_CID_AUDIO_MUTE) - return -EINVAL; - state->muted = ctrl->value; - tlv320aic23b_write(client, 0, 0x180); /* mute both channels */ - /* set gain on both channels to +3.0 dB */ - if (!state->muted) - tlv320aic23b_write(client, 0, 0x119); + case 44100: /* set sample rate to 44.1 kHz */ + tlv320aic23b_write(sd, 8, 0x022); break; - - case VIDIOC_LOG_STATUS: - v4l_info(client, "Input: %s\n", - state->muted ? "muted" : "active"); + case 48000: /* set sample rate to 48 kHz */ + tlv320aic23b_write(sd, 8, 0x000); break; - default: return -EINVAL; } return 0; } +static int tlv320aic23b_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + struct tlv320aic23b_state *state = to_state(sd); + + if (ctrl->id != V4L2_CID_AUDIO_MUTE) + return -EINVAL; + ctrl->value = state->muted; + return 0; +} + +static int tlv320aic23b_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + struct tlv320aic23b_state *state = to_state(sd); + + if (ctrl->id != V4L2_CID_AUDIO_MUTE) + return -EINVAL; + state->muted = ctrl->value; + tlv320aic23b_write(sd, 0, 0x180); /* mute both channels */ + /* set gain on both channels to +3.0 dB */ + if (!state->muted) + tlv320aic23b_write(sd, 0, 0x119); + return 0; +} + +static int tlv320aic23b_log_status(struct v4l2_subdev *sd) +{ + struct tlv320aic23b_state *state = to_state(sd); + + v4l2_info(sd, "Input: %s\n", state->muted ? "muted" : "active"); + return 0; +} + +static int tlv320aic23b_command(struct i2c_client *client, unsigned cmd, void *arg) +{ + return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg); +} + +/* ----------------------------------------------------------------------- */ + +static const struct v4l2_subdev_core_ops tlv320aic23b_core_ops = { + .log_status = tlv320aic23b_log_status, + .g_ctrl = tlv320aic23b_g_ctrl, + .s_ctrl = tlv320aic23b_s_ctrl, +}; + +static const struct v4l2_subdev_audio_ops tlv320aic23b_audio_ops = { + .s_clock_freq = tlv320aic23b_s_clock_freq, +}; + +static const struct v4l2_subdev_ops tlv320aic23b_ops = { + .core = &tlv320aic23b_core_ops, + .audio = &tlv320aic23b_audio_ops, +}; + /* ----------------------------------------------------------------------- */ /* i2c implementation */ @@ -128,6 +156,7 @@ static int tlv320aic23b_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct tlv320aic23b_state *state; + struct v4l2_subdev *sd; /* Check if the adapter supports the needed features */ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) @@ -136,32 +165,36 @@ static int tlv320aic23b_probe(struct i2c_client *client, v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name); - state = kmalloc(sizeof(struct tlv320aic23b_state), GFP_KERNEL); + state = kzalloc(sizeof(struct tlv320aic23b_state), GFP_KERNEL); if (state == NULL) return -ENOMEM; + sd = &state->sd; + v4l2_i2c_subdev_init(sd, client, &tlv320aic23b_ops); state->muted = 0; - i2c_set_clientdata(client, state); /* Initialize tlv320aic23b */ /* RESET */ - tlv320aic23b_write(client, 15, 0x000); + tlv320aic23b_write(sd, 15, 0x000); /* turn off DAC & mic input */ - tlv320aic23b_write(client, 6, 0x00A); + tlv320aic23b_write(sd, 6, 0x00A); /* left-justified, 24-bit, master mode */ - tlv320aic23b_write(client, 7, 0x049); + tlv320aic23b_write(sd, 7, 0x049); /* set gain on both channels to +3.0 dB */ - tlv320aic23b_write(client, 0, 0x119); + tlv320aic23b_write(sd, 0, 0x119); /* set sample rate to 48 kHz */ - tlv320aic23b_write(client, 8, 0x000); + tlv320aic23b_write(sd, 8, 0x000); /* activate digital interface */ - tlv320aic23b_write(client, 9, 0x001); + tlv320aic23b_write(sd, 9, 0x001); return 0; } static int tlv320aic23b_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_state(sd)); return 0; } -- 2.46.0