ASoC: sta350: Add codec driver
The TI STA350 is an integrated 2.1-channel power amplifier that is
controllable over I2C. This patch adds an ASoC driver for it.
At a glance, this chip is very similar to the STA320 for which a driver
already exists. In details, however, the register maps contain subtle
differences which made a whole new driver easier to write and maintain.
[daniel@zonque.org: cleanups, DT property rework, rebased on asoc-next]
Signed-off-by: Sven Brandau <brandau@gmx.de>
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/codecs/sta350.h b/sound/soc/codecs/sta350.h
new file mode 100644
index 0000000..c3248f0f
--- /dev/null
+++ b/sound/soc/codecs/sta350.h
@@ -0,0 +1,228 @@
+/*
+ * Codec driver for ST STA350 2.1-channel high-efficiency digital audio system
+ *
+ * Copyright: 2011 Raumfeld GmbH
+ * Author: Sven Brandau <info@brandau.biz>
+ *
+ * based on code from:
+ * Raumfeld GmbH
+ * Johannes Stezenbach <js@sig21.net>
+ * Wolfson Microelectronics PLC.
+ * Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * 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
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+#ifndef _ASOC_STA_350_H
+#define _ASOC_STA_350_H
+
+/* STA50 register addresses */
+
+#define STA350_REGISTER_COUNT 0x4D
+#define STA350_COEF_COUNT 62
+
+#define STA350_CONFA 0x00
+#define STA350_CONFB 0x01
+#define STA350_CONFC 0x02
+#define STA350_CONFD 0x03
+#define STA350_CONFE 0x04
+#define STA350_CONFF 0x05
+#define STA350_MMUTE 0x06
+#define STA350_MVOL 0x07
+#define STA350_C1VOL 0x08
+#define STA350_C2VOL 0x09
+#define STA350_C3VOL 0x0a
+#define STA350_AUTO1 0x0b
+#define STA350_AUTO2 0x0c
+#define STA350_AUTO3 0x0d
+#define STA350_C1CFG 0x0e
+#define STA350_C2CFG 0x0f
+#define STA350_C3CFG 0x10
+#define STA350_TONE 0x11
+#define STA350_L1AR 0x12
+#define STA350_L1ATRT 0x13
+#define STA350_L2AR 0x14
+#define STA350_L2ATRT 0x15
+#define STA350_CFADDR2 0x16
+#define STA350_B1CF1 0x17
+#define STA350_B1CF2 0x18
+#define STA350_B1CF3 0x19
+#define STA350_B2CF1 0x1a
+#define STA350_B2CF2 0x1b
+#define STA350_B2CF3 0x1c
+#define STA350_A1CF1 0x1d
+#define STA350_A1CF2 0x1e
+#define STA350_A1CF3 0x1f
+#define STA350_A2CF1 0x20
+#define STA350_A2CF2 0x21
+#define STA350_A2CF3 0x22
+#define STA350_B0CF1 0x23
+#define STA350_B0CF2 0x24
+#define STA350_B0CF3 0x25
+#define STA350_CFUD 0x26
+#define STA350_MPCC1 0x27
+#define STA350_MPCC2 0x28
+#define STA350_DCC1 0x29
+#define STA350_DCC2 0x2a
+#define STA350_FDRC1 0x2b
+#define STA350_FDRC2 0x2c
+#define STA350_STATUS 0x2d
+/* reserved: 0x2d - 0x30 */
+#define STA350_EQCFG 0x31
+#define STA350_EATH1 0x32
+#define STA350_ERTH1 0x33
+#define STA350_EATH2 0x34
+#define STA350_ERTH2 0x35
+#define STA350_CONFX 0x36
+#define STA350_SVCA 0x37
+#define STA350_SVCB 0x38
+#define STA350_RMS0A 0x39
+#define STA350_RMS0B 0x3a
+#define STA350_RMS0C 0x3b
+#define STA350_RMS1A 0x3c
+#define STA350_RMS1B 0x3d
+#define STA350_RMS1C 0x3e
+#define STA350_EVOLRES 0x3f
+/* reserved: 0x40 - 0x47 */
+#define STA350_NSHAPE 0x48
+#define STA350_CTXB4B1 0x49
+#define STA350_CTXB7B5 0x4a
+#define STA350_MISC1 0x4b
+#define STA350_MISC2 0x4c
+
+/* 0x00 CONFA */
+#define STA350_CONFA_MCS_MASK 0x03
+#define STA350_CONFA_MCS_SHIFT 0
+#define STA350_CONFA_IR_MASK 0x18
+#define STA350_CONFA_IR_SHIFT 3
+#define STA350_CONFA_TWRB BIT(5)
+#define STA350_CONFA_TWAB BIT(6)
+#define STA350_CONFA_FDRB BIT(7)
+
+/* 0x01 CONFB */
+#define STA350_CONFB_SAI_MASK 0x0f
+#define STA350_CONFB_SAI_SHIFT 0
+#define STA350_CONFB_SAIFB BIT(4)
+#define STA350_CONFB_DSCKE BIT(5)
+#define STA350_CONFB_C1IM BIT(6)
+#define STA350_CONFB_C2IM BIT(7)
+
+/* 0x02 CONFC */
+#define STA350_CONFC_OM_MASK 0x03
+#define STA350_CONFC_OM_SHIFT 0
+#define STA350_CONFC_CSZ_MASK 0x3c
+#define STA350_CONFC_CSZ_SHIFT 2
+#define STA350_CONFC_OCRB BIT(7)
+
+/* 0x03 CONFD */
+#define STA350_CONFD_HPB_SHIFT 0
+#define STA350_CONFD_DEMP_SHIFT 1
+#define STA350_CONFD_DSPB_SHIFT 2
+#define STA350_CONFD_PSL_SHIFT 3
+#define STA350_CONFD_BQL_SHIFT 4
+#define STA350_CONFD_DRC_SHIFT 5
+#define STA350_CONFD_ZDE_SHIFT 6
+#define STA350_CONFD_SME_SHIFT 7
+
+/* 0x04 CONFE */
+#define STA350_CONFE_MPCV BIT(0)
+#define STA350_CONFE_MPCV_SHIFT 0
+#define STA350_CONFE_MPC BIT(1)
+#define STA350_CONFE_MPC_SHIFT 1
+#define STA350_CONFE_NSBW BIT(2)
+#define STA350_CONFE_NSBW_SHIFT 2
+#define STA350_CONFE_AME BIT(3)
+#define STA350_CONFE_AME_SHIFT 3
+#define STA350_CONFE_PWMS BIT(4)
+#define STA350_CONFE_PWMS_SHIFT 4
+#define STA350_CONFE_DCCV BIT(5)
+#define STA350_CONFE_DCCV_SHIFT 5
+#define STA350_CONFE_ZCE BIT(6)
+#define STA350_CONFE_ZCE_SHIFT 6
+#define STA350_CONFE_SVE BIT(7)
+#define STA350_CONFE_SVE_SHIFT 7
+
+/* 0x05 CONFF */
+#define STA350_CONFF_OCFG_MASK 0x03
+#define STA350_CONFF_OCFG_SHIFT 0
+#define STA350_CONFF_IDE BIT(2)
+#define STA350_CONFF_BCLE BIT(3)
+#define STA350_CONFF_LDTE BIT(4)
+#define STA350_CONFF_ECLE BIT(5)
+#define STA350_CONFF_PWDN BIT(6)
+#define STA350_CONFF_EAPD BIT(7)
+
+/* 0x06 MMUTE */
+#define STA350_MMUTE_MMUTE 0x01
+#define STA350_MMUTE_MMUTE_SHIFT 0
+#define STA350_MMUTE_C1M 0x02
+#define STA350_MMUTE_C1M_SHIFT 1
+#define STA350_MMUTE_C2M 0x04
+#define STA350_MMUTE_C2M_SHIFT 2
+#define STA350_MMUTE_C3M 0x08
+#define STA350_MMUTE_C3M_SHIFT 3
+#define STA350_MMUTE_LOC_MASK 0xC0
+#define STA350_MMUTE_LOC_SHIFT 6
+
+/* 0x0b AUTO1 */
+#define STA350_AUTO1_AMGC_MASK 0x30
+#define STA350_AUTO1_AMGC_SHIFT 4
+
+/* 0x0c AUTO2 */
+#define STA350_AUTO2_AMAME 0x01
+#define STA350_AUTO2_AMAM_MASK 0x0e
+#define STA350_AUTO2_AMAM_SHIFT 1
+#define STA350_AUTO2_XO_MASK 0xf0
+#define STA350_AUTO2_XO_SHIFT 4
+
+/* 0x0d AUTO3 */
+#define STA350_AUTO3_PEQ_MASK 0x1f
+#define STA350_AUTO3_PEQ_SHIFT 0
+
+/* 0x0e 0x0f 0x10 CxCFG */
+#define STA350_CxCFG_TCB_SHIFT 0
+#define STA350_CxCFG_EQBP_SHIFT 1
+#define STA350_CxCFG_VBP_SHIFT 2
+#define STA350_CxCFG_BO_SHIFT 3
+#define STA350_CxCFG_LS_SHIFT 4
+#define STA350_CxCFG_OM_MASK 0xc0
+#define STA350_CxCFG_OM_SHIFT 6
+
+/* 0x11 TONE */
+#define STA350_TONE_BTC_SHIFT 0
+#define STA350_TONE_TTC_SHIFT 4
+
+/* 0x12 0x13 0x14 0x15 limiter attack/release */
+#define STA350_LxA_SHIFT 0
+#define STA350_LxR_SHIFT 4
+
+/* 0x26 CFUD */
+#define STA350_CFUD_W1 0x01
+#define STA350_CFUD_WA 0x02
+#define STA350_CFUD_R1 0x04
+#define STA350_CFUD_RA 0x08
+
+
+/* biquad filter coefficient table offsets */
+#define STA350_C1_BQ_BASE 0
+#define STA350_C2_BQ_BASE 20
+#define STA350_CH_BQ_NUM 4
+#define STA350_BQ_NUM_COEF 5
+#define STA350_XO_HP_BQ_BASE 40
+#define STA350_XO_LP_BQ_BASE 45
+#define STA350_C1_PRESCALE 50
+#define STA350_C2_PRESCALE 51
+#define STA350_C1_POSTSCALE 52
+#define STA350_C2_POSTSCALE 53
+#define STA350_C3_POSTSCALE 54
+#define STA350_TW_POSTSCALE 55
+#define STA350_C1_MIX1 56
+#define STA350_C1_MIX2 57
+#define STA350_C2_MIX1 58
+#define STA350_C2_MIX2 59
+#define STA350_C3_MIX1 60
+#define STA350_C3_MIX2 61
+
+#endif /* _ASOC_STA_350_H */