[ALSA] ASoC: Add WM8510 driver

The WM8510 is a mono CODEC with speaker driver optimised for telephony
applications, featuring:
 - 16/20/24/32 bit audio at data rates between 8kHz and 48kHz
 - On-chip PLL
 - Dual microphone inputs

This driver was originally written by Liam Girdwood with updates from
Brett Saunders, Geoffrey Wossum and myself.

Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Brett Saunders <breton.saunders@ntlworld.com>
Signed-off-by: Geoffrey Wossum <geoffrey@pager.net>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 103 insertions, 0 deletions

diff --git a/sound/soc/codecs/wm8510.h b/sound/soc/codecs/wm8510.h
new file mode 100644
index 000000000000..c862e7b7d530
--- /dev/null
+++ b/sound/soc/codecs/wm8510.h
@@ -0,0 +1,103 @@
+/*
+ * wm8510.h  --  WM8510 Soc Audio driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _WM8510_H
+#define _WM8510_H
+
+/* WM8510 register space */
+
+#define WM8510_RESET		0x0
+#define WM8510_POWER1		0x1
+#define WM8510_POWER2		0x2
+#define WM8510_POWER3		0x3
+#define WM8510_IFACE		0x4
+#define WM8510_COMP			0x5
+#define WM8510_CLOCK		0x6
+#define WM8510_ADD			0x7
+#define WM8510_GPIO			0x8
+#define WM8510_DAC			0xa
+#define WM8510_DACVOL		0xb
+#define WM8510_ADC			0xe
+#define WM8510_ADCVOL		0xf
+#define WM8510_EQ1			0x12
+#define WM8510_EQ2			0x13
+#define WM8510_EQ3			0x14
+#define WM8510_EQ4			0x15
+#define WM8510_EQ5			0x16
+#define WM8510_DACLIM1		0x18
+#define WM8510_DACLIM2		0x19
+#define WM8510_NOTCH1		0x1b
+#define WM8510_NOTCH2		0x1c
+#define WM8510_NOTCH3		0x1d
+#define WM8510_NOTCH4		0x1e
+#define WM8510_ALC1			0x20
+#define WM8510_ALC2			0x21
+#define WM8510_ALC3			0x22
+#define WM8510_NGATE		0x23
+#define WM8510_PLLN			0x24
+#define WM8510_PLLK1		0x25
+#define WM8510_PLLK2		0x26
+#define WM8510_PLLK3		0x27
+#define WM8510_ATTEN		0x28
+#define WM8510_INPUT		0x2c
+#define WM8510_INPPGA		0x2d
+#define WM8510_ADCBOOST		0x2f
+#define WM8510_OUTPUT		0x31
+#define WM8510_SPKMIX		0x32
+#define WM8510_SPKVOL		0x36
+#define WM8510_MONOMIX		0x38
+
+#define WM8510_CACHEREGNUM 	57
+
+/* Clock divider Id's */
+#define WM8510_OPCLKDIV		0
+#define WM8510_MCLKDIV		1
+#define WM8510_ADCCLK		2
+#define WM8510_DACCLK		3
+#define WM8510_BCLKDIV		4
+
+/* DAC clock dividers */
+#define WM8510_DACCLK_F2	(1 << 3)
+#define WM8510_DACCLK_F4	(0 << 3)
+
+/* ADC clock dividers */
+#define WM8510_ADCCLK_F2	(1 << 3)
+#define WM8510_ADCCLK_F4	(0 << 3)
+
+/* PLL Out dividers */
+#define WM8510_OPCLKDIV_1	(0 << 4)
+#define WM8510_OPCLKDIV_2	(1 << 4)
+#define WM8510_OPCLKDIV_3	(2 << 4)
+#define WM8510_OPCLKDIV_4	(3 << 4)
+
+/* BCLK clock dividers */
+#define WM8510_BCLKDIV_1	(0 << 2)
+#define WM8510_BCLKDIV_2	(1 << 2)
+#define WM8510_BCLKDIV_4	(2 << 2)
+#define WM8510_BCLKDIV_8	(3 << 2)
+#define WM8510_BCLKDIV_16	(4 << 2)
+#define WM8510_BCLKDIV_32	(5 << 2)
+
+/* MCLK clock dividers */
+#define WM8510_MCLKDIV_1	(0 << 5)
+#define WM8510_MCLKDIV_1_5	(1 << 5)
+#define WM8510_MCLKDIV_2	(2 << 5)
+#define WM8510_MCLKDIV_3	(3 << 5)
+#define WM8510_MCLKDIV_4	(4 << 5)
+#define WM8510_MCLKDIV_6	(5 << 5)
+#define WM8510_MCLKDIV_8	(6 << 5)
+#define WM8510_MCLKDIV_12	(7 << 5)
+
+struct wm8510_setup_data {
+	unsigned short i2c_address;
+};
+
+extern struct snd_soc_codec_dai wm8510_dai;
+extern struct snd_soc_codec_device soc_codec_dev_wm8510;
+
+#endif