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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-24 17:50:13 +0100 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-24 17:50:13 +0100 |
commit | 76d21c563569bcea6bc67d65cc2c460cff643058 (patch) | |
tree | 4dd2c9846ea7838077099646418978e354df1680 /drivers/media/video/wm8775.c | |
parent | Merge branch 'for-linus' of git://android.git.kernel.org/kernel/tegra (diff) | |
parent | [media] videobuf2-dma-contig: make cookie() return a pointer to dma_addr_t (diff) | |
download | linux-76d21c563569bcea6bc67d65cc2c460cff643058.tar.xz linux-76d21c563569bcea6bc67d65cc2c460cff643058.zip |
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (442 commits)
[media] videobuf2-dma-contig: make cookie() return a pointer to dma_addr_t
[media] sh_mobile_ceu_camera: Do not call vb2's mem_ops directly
[media] V4L: soc-camera: explicitly require V4L2_BUF_TYPE_VIDEO_CAPTURE
[media] v4l: soc-camera: Store negotiated buffer settings
[media] rc: interim support for 32-bit NEC-ish scancodes
[media] mceusb: topseed 0x0011 needs gen3 init for tx to work
[media] lirc_zilog: error out if buffer read bytes != chunk size
[media] lirc: silence some compile warnings
[media] hdpvr: use same polling interval as other OS
[media] ir-kbd-i2c: pass device code w/key in hauppauge case
[media] rc/keymaps: Remove the obsolete rc-rc5-tv keymap
[media] remove the old RC_MAP_HAUPPAUGE_NEW RC map
[media] rc/keymaps: Rename Hauppauge table as rc-hauppauge
[media] rc-rc5-hauppauge-new: Fix Hauppauge Grey mapping
[media] rc-rc5-hauppauge-new: Add support for the old Black RC
[media] rc-rc5-hauppauge-new: Add the old control to the table
[media] rc-winfast: Fix the keycode tables
[media] a800: Fix a few wrong IR key assignments
[media] opera1: Use multimedia keys instead of an app-specific mapping
[media] dw2102: Use multimedia keys instead of an app-specific mapping
...
Fix up trivial conflicts (remove/modify and some real conflicts) in:
arch/arm/mach-omap2/devices.c
drivers/staging/Kconfig
drivers/staging/Makefile
drivers/staging/dabusb/dabusb.c
drivers/staging/dabusb/dabusb.h
drivers/staging/easycap/easycap_ioctl.c
drivers/staging/usbvideo/usbvideo.c
drivers/staging/usbvideo/vicam.c
Diffstat (limited to 'drivers/media/video/wm8775.c')
-rw-r--r-- | drivers/media/video/wm8775.c | 126 |
1 files changed, 88 insertions, 38 deletions
diff --git a/drivers/media/video/wm8775.c b/drivers/media/video/wm8775.c index fe8ef6419f83..9cedb1e69b58 100644 --- a/drivers/media/video/wm8775.c +++ b/drivers/media/video/wm8775.c @@ -35,6 +35,7 @@ #include <media/v4l2-device.h> #include <media/v4l2-chip-ident.h> #include <media/v4l2-ctrls.h> +#include <media/wm8775.h> MODULE_DESCRIPTION("wm8775 driver"); MODULE_AUTHOR("Ulf Eklund, Hans Verkuil"); @@ -50,10 +51,16 @@ enum { TOT_REGS }; +#define ALC_HOLD 0x85 /* R17: use zero cross detection, ALC hold time 42.6 ms */ +#define ALC_EN 0x100 /* R17: ALC enable */ + struct wm8775_state { struct v4l2_subdev sd; struct v4l2_ctrl_handler hdl; struct v4l2_ctrl *mute; + struct v4l2_ctrl *vol; + struct v4l2_ctrl *bal; + struct v4l2_ctrl *loud; u8 input; /* Last selected input (0-0xf) */ }; @@ -85,6 +92,30 @@ static int wm8775_write(struct v4l2_subdev *sd, int reg, u16 val) return -1; } +static void wm8775_set_audio(struct v4l2_subdev *sd, int quietly) +{ + struct wm8775_state *state = to_state(sd); + u8 vol_l, vol_r; + int muted = 0 != state->mute->val; + u16 volume = (u16)state->vol->val; + u16 balance = (u16)state->bal->val; + + /* normalize ( 65535 to 0 -> 255 to 0 (+24dB to -103dB) ) */ + vol_l = (min(65536 - balance, 32768) * volume) >> 23; + vol_r = (min(balance, (u16)32768) * volume) >> 23; + + /* Mute */ + if (muted || quietly) + wm8775_write(sd, R21, 0x0c0 | state->input); + + wm8775_write(sd, R14, vol_l | 0x100); /* 0x100= Left channel ADC zero cross enable */ + wm8775_write(sd, R15, vol_r | 0x100); /* 0x100= Right channel ADC zero cross enable */ + + /* Un-mute */ + if (!muted) + wm8775_write(sd, R21, state->input); +} + static int wm8775_s_routing(struct v4l2_subdev *sd, u32 input, u32 output, u32 config) { @@ -102,25 +133,26 @@ static int wm8775_s_routing(struct v4l2_subdev *sd, state->input = input; if (!v4l2_ctrl_g_ctrl(state->mute)) return 0; - wm8775_write(sd, R21, 0x0c0); - wm8775_write(sd, R14, 0x1d4); - wm8775_write(sd, R15, 0x1d4); - wm8775_write(sd, R21, 0x100 + state->input); + if (!v4l2_ctrl_g_ctrl(state->vol)) + return 0; + if (!v4l2_ctrl_g_ctrl(state->bal)) + return 0; + wm8775_set_audio(sd, 1); return 0; } static int wm8775_s_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *sd = to_sd(ctrl); - struct wm8775_state *state = to_state(sd); switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: - wm8775_write(sd, R21, 0x0c0); - wm8775_write(sd, R14, 0x1d4); - wm8775_write(sd, R15, 0x1d4); - if (!ctrl->val) - wm8775_write(sd, R21, 0x100 + state->input); + case V4L2_CID_AUDIO_VOLUME: + case V4L2_CID_AUDIO_BALANCE: + wm8775_set_audio(sd, 0); + return 0; + case V4L2_CID_AUDIO_LOUDNESS: + wm8775_write(sd, R17, (ctrl->val ? ALC_EN : 0) | ALC_HOLD); return 0; } return -EINVAL; @@ -144,16 +176,7 @@ static int wm8775_log_status(struct v4l2_subdev *sd) static int wm8775_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *freq) { - struct wm8775_state *state = to_state(sd); - - /* If I remove this, then it can happen that I have no - sound the first time I tune from static to a valid channel. - It's difficult to reproduce and is almost certainly related - to the zero cross detect circuit. */ - wm8775_write(sd, R21, 0x0c0); - wm8775_write(sd, R14, 0x1d4); - wm8775_write(sd, R15, 0x1d4); - wm8775_write(sd, R21, 0x100 + state->input); + wm8775_set_audio(sd, 0); return 0; } @@ -203,6 +226,13 @@ static int wm8775_probe(struct i2c_client *client, { struct wm8775_state *state; struct v4l2_subdev *sd; + int err; + bool is_nova_s = false; + + if (client->dev.platform_data) { + struct wm8775_platform_data *data = client->dev.platform_data; + is_nova_s = data->is_nova_s; + } /* Check if the adapter supports the needed features */ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) @@ -218,13 +248,18 @@ static int wm8775_probe(struct i2c_client *client, v4l2_i2c_subdev_init(sd, client, &wm8775_ops); state->input = 2; - v4l2_ctrl_handler_init(&state->hdl, 1); + v4l2_ctrl_handler_init(&state->hdl, 4); state->mute = v4l2_ctrl_new_std(&state->hdl, &wm8775_ctrl_ops, V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); + state->vol = v4l2_ctrl_new_std(&state->hdl, &wm8775_ctrl_ops, + V4L2_CID_AUDIO_VOLUME, 0, 65535, (65535+99)/100, 0xCF00); /* 0dB*/ + state->bal = v4l2_ctrl_new_std(&state->hdl, &wm8775_ctrl_ops, + V4L2_CID_AUDIO_BALANCE, 0, 65535, (65535+99)/100, 32768); + state->loud = v4l2_ctrl_new_std(&state->hdl, &wm8775_ctrl_ops, + V4L2_CID_AUDIO_LOUDNESS, 0, 1, 1, 1); sd->ctrl_handler = &state->hdl; - if (state->hdl.error) { - int err = state->hdl.error; - + err = state->hdl.error; + if (err) { v4l2_ctrl_handler_free(&state->hdl); kfree(state); return err; @@ -236,29 +271,44 @@ static int wm8775_probe(struct i2c_client *client, wm8775_write(sd, R23, 0x000); /* Disable zero cross detect timeout */ wm8775_write(sd, R7, 0x000); - /* Left justified, 24-bit mode */ + /* HPF enable, left justified, 24-bit (Philips) mode */ wm8775_write(sd, R11, 0x021); /* Master mode, clock ratio 256fs */ wm8775_write(sd, R12, 0x102); /* Powered up */ wm8775_write(sd, R13, 0x000); - /* ADC gain +2.5dB, enable zero cross */ - wm8775_write(sd, R14, 0x1d4); - /* ADC gain +2.5dB, enable zero cross */ - wm8775_write(sd, R15, 0x1d4); - /* ALC Stereo, ALC target level -1dB FS max gain +8dB */ - wm8775_write(sd, R16, 0x1bf); - /* Enable gain control, use zero cross detection, - ALC hold time 42.6 ms */ - wm8775_write(sd, R17, 0x185); + + if (!is_nova_s) { + /* ADC gain +2.5dB, enable zero cross */ + wm8775_write(sd, R14, 0x1d4); + /* ADC gain +2.5dB, enable zero cross */ + wm8775_write(sd, R15, 0x1d4); + /* ALC Stereo, ALC target level -1dB FS max gain +8dB */ + wm8775_write(sd, R16, 0x1bf); + /* Enable gain control, use zero cross detection, + ALC hold time 42.6 ms */ + wm8775_write(sd, R17, 0x185); + } else { + /* ALC stereo, ALC target level -5dB FS, ALC max gain +8dB */ + wm8775_write(sd, R16, 0x1bb); + /* Set ALC mode and hold time */ + wm8775_write(sd, R17, (state->loud->val ? ALC_EN : 0) | ALC_HOLD); + } /* ALC gain ramp up delay 34 s, ALC gain ramp down delay 33 ms */ wm8775_write(sd, R18, 0x0a2); /* Enable noise gate, threshold -72dBfs */ wm8775_write(sd, R19, 0x005); - /* Transient window 4ms, lower PGA gain limit -1dB */ - wm8775_write(sd, R20, 0x07a); - /* LRBOTH = 1, use input 2. */ - wm8775_write(sd, R21, 0x102); + if (!is_nova_s) { + /* Transient window 4ms, lower PGA gain limit -1dB */ + wm8775_write(sd, R20, 0x07a); + /* LRBOTH = 1, use input 2. */ + wm8775_write(sd, R21, 0x102); + } else { + /* Transient window 4ms, ALC min gain -5dB */ + wm8775_write(sd, R20, 0x0fb); + + wm8775_set_audio(sd, 1); /* set volume/mute/mux */ + } return 0; } |