[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