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authorMark Brown <broonie@opensource.wolfsonmicro.com>2008-12-16 10:15:12 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2008-12-18 17:21:07 +0000
commit40aa4a30d0fd075fb934de4ee8163056827052ab (patch)
treeffe5d3ee44a9c3916f899cc9207396f892ddcd56 /include/linux/mfd
parentb8b33cb5608a3bb1b072548dc89159ef614096ab (diff)
ASoC: Add WM8350 AudioPlus codec driver
The WM8350 is an integrated audio and power management subsystem which provides a single-chip solution for portable audio and multimedia systems. The integrated audio CODEC provides all the necessary functions for high-quality stereo recording and playback. Programmable on-chip amplifiers allow for the direct connection of headphones and microphones with a minimum of external components. A programmable low-noise bias voltage is available to feed one or more electret microphones. Additional audio features include programmable high-pass filter in the ADC input path. This driver was originally written by Liam Girdwood with further updates from me. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/linux/mfd')
-rw-r--r--include/linux/mfd/wm8350/audio.h38
1 files changed, 34 insertions, 4 deletions
diff --git a/include/linux/mfd/wm8350/audio.h b/include/linux/mfd/wm8350/audio.h
index 217bb22ebb8..af95a1d2f3a 100644
--- a/include/linux/mfd/wm8350/audio.h
+++ b/include/linux/mfd/wm8350/audio.h
@@ -1,7 +1,7 @@
/*
* audio.h -- Audio Driver for Wolfson WM8350 PMIC
*
- * Copyright 2007 Wolfson Microelectronics PLC
+ * Copyright 2007, 2008 Wolfson Microelectronics PLC
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -70,9 +70,9 @@
#define WM8350_CODEC_ISEL_0_5 3 /* x0.5 */
#define WM8350_VMID_OFF 0
-#define WM8350_VMID_500K 1
-#define WM8350_VMID_100K 2
-#define WM8350_VMID_10K 3
+#define WM8350_VMID_300K 1
+#define WM8350_VMID_50K 2
+#define WM8350_VMID_5K 3
/*
* R40 (0x28) - Clock Control 1
@@ -591,8 +591,38 @@
#define WM8350_IRQ_CODEC_MICSCD 41
#define WM8350_IRQ_CODEC_MICD 42
+/*
+ * WM8350 Platform data.
+ *
+ * This must be initialised per platform for best audio performance.
+ * Please see WM8350 datasheet for information.
+ */
+struct wm8350_audio_platform_data {
+ int vmid_discharge_msecs; /* VMID --> OFF discharge time */
+ int drain_msecs; /* OFF drain time */
+ int cap_discharge_msecs; /* Cap ON (from OFF) discharge time */
+ int vmid_charge_msecs; /* vmid power up time */
+ u32 vmid_s_curve:2; /* vmid enable s curve speed */
+ u32 dis_out4:2; /* out4 discharge speed */
+ u32 dis_out3:2; /* out3 discharge speed */
+ u32 dis_out2:2; /* out2 discharge speed */
+ u32 dis_out1:2; /* out1 discharge speed */
+ u32 vroi_out4:1; /* out4 tie off */
+ u32 vroi_out3:1; /* out3 tie off */
+ u32 vroi_out2:1; /* out2 tie off */
+ u32 vroi_out1:1; /* out1 tie off */
+ u32 vroi_enable:1; /* enable tie off */
+ u32 codec_current_on:2; /* current level ON */
+ u32 codec_current_standby:2; /* current level STANDBY */
+ u32 codec_current_charge:2; /* codec current @ vmid charge */
+};
+
+struct snd_soc_codec;
+
struct wm8350_codec {
struct platform_device *pdev;
+ struct snd_soc_codec *codec;
+ struct wm8350_audio_platform_data *platform_data;
};
#endif