483 lines
11 KiB
C
483 lines
11 KiB
C
/* Copyright (c) 2010, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/platform_device.h>
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#include <linux/mfd/marimba.h>
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#include <linux/mfd/timpani-audio.h>
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#include <sound/soc.h>
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#include <sound/initval.h>
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#include <sound/soc-dapm.h>
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/* Debug purpose */
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#include <linux/gpio.h>
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#include <linux/clk.h>
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#include <mach/mpp.h>
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/* End of debug purpose */
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#define ADIE_CODEC_MAX 2
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struct adie_codec_register {
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u8 reg;
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u8 mask;
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u8 val;
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};
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static struct adie_codec_register dmic_on[] = {
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{0x80, 0x05, 0x05},
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{0x80, 0x05, 0x00},
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{0x83, 0x0C, 0x00},
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{0x8A, 0xF0, 0x30},
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{0x86, 0xFF, 0xAC},
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{0x87, 0xFF, 0xAC},
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{0x8A, 0xF0, 0xF0},
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{0x82, 0x1F, 0x1E},
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{0x83, 0x0C, 0x0C},
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{0x92, 0x3F, 0x21},
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{0x94, 0x3F, 0x24},
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{0xA3, 0x39, 0x01},
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{0xA8, 0x0F, 0x00},
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{0xAB, 0x3F, 0x00},
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{0x86, 0xFF, 0x00},
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{0x87, 0xFF, 0x00},
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{0x8A, 0xF0, 0xC0},
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};
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static struct adie_codec_register dmic_off[] = {
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{0x8A, 0xF0, 0xF0},
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{0x83, 0x0C, 0x00},
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{0x92, 0xFF, 0x00},
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{0x94, 0xFF, 0x1B},
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};
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static struct adie_codec_register spk_on[] = {
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{0x80, 0x02, 0x02},
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{0x80, 0x02, 0x00},
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{0x83, 0x03, 0x00},
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{0x8A, 0x0F, 0x03},
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{0xA3, 0x02, 0x02},
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{0x84, 0xFF, 0x00},
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{0x85, 0xFF, 0x00},
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{0x8A, 0x0F, 0x0C},
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{0x81, 0xFF, 0x0E},
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{0x83, 0x03, 0x03},
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{0x24, 0x6F, 0x6C},
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{0xB7, 0x01, 0x01},
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{0x31, 0x01, 0x01},
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{0x32, 0xF8, 0x08},
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{0x32, 0xF8, 0x48},
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{0x32, 0xF8, 0xF8},
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{0xE0, 0xFE, 0xAC},
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{0xE1, 0xFE, 0xAC},
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{0x3A, 0x24, 0x24},
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{0xE0, 0xFE, 0x3C},
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{0xE1, 0xFE, 0x3C},
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{0xE0, 0xFE, 0x1C},
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{0xE1, 0xFE, 0x1C},
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{0xE0, 0xFE, 0x10},
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{0xE1, 0xFE, 0x10},
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};
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static struct adie_codec_register spk_off[] = {
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{0x8A, 0x0F, 0x0F},
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{0xE0, 0xFE, 0x1C},
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{0xE1, 0xFE, 0x1C},
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{0xE0, 0xFE, 0x3C},
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{0xE1, 0xFE, 0x3C},
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{0xE0, 0xFC, 0xAC},
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{0xE1, 0xFC, 0xAC},
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{0x32, 0xF8, 0x00},
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{0x31, 0x05, 0x00},
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{0x3A, 0x24, 0x00},
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};
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static struct adie_codec_register spk_mute[] = {
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{0x84, 0xFF, 0xAC},
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{0x85, 0xFF, 0xAC},
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{0x8A, 0x0F, 0x0C},
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};
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static struct adie_codec_register spk_unmute[] = {
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{0x84, 0xFF, 0x00},
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{0x85, 0xFF, 0x00},
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{0x8A, 0x0F, 0x0C},
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};
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struct adie_codec_path {
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int rate; /* sample rate of path */
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u32 reg_owner;
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};
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struct timpani_drv_data { /* member undecided */
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struct snd_soc_codec codec;
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struct adie_codec_path path[ADIE_CODEC_MAX];
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u32 ref_cnt;
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struct marimba_codec_platform_data *codec_pdata;
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};
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static struct snd_soc_codec *timpani_codec;
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enum /* regaccess blk id */
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{
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RA_BLOCK_RX1 = 0,
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RA_BLOCK_RX2,
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RA_BLOCK_TX1,
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RA_BLOCK_TX2,
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RA_BLOCK_LB,
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RA_BLOCK_SHARED_RX_LB,
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RA_BLOCK_SHARED_TX,
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RA_BLOCK_TXFE1,
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RA_BLOCK_TXFE2,
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RA_BLOCK_PA_COMMON,
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RA_BLOCK_PA_EAR,
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RA_BLOCK_PA_HPH,
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RA_BLOCK_PA_LINE,
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RA_BLOCK_PA_AUX,
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RA_BLOCK_ADC,
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RA_BLOCK_DMIC,
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RA_BLOCK_TX_I2S,
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RA_BLOCK_DRV,
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RA_BLOCK_TEST,
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RA_BLOCK_RESERVED,
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RA_BLOCK_NUM,
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};
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enum /* regaccess onwer ID */
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{
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RA_OWNER_NONE = 0,
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RA_OWNER_PATH_RX1,
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RA_OWNER_PATH_RX2,
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RA_OWNER_PATH_TX1,
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RA_OWNER_PATH_TX2,
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RA_OWNER_PATH_LB,
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RA_OWNER_DRV,
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RA_OWNER_NUM,
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};
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struct reg_acc_blk_cfg {
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u8 valid_owners[RA_OWNER_NUM];
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};
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struct timpani_regaccess {
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u8 reg_addr;
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u8 blk_mask[RA_BLOCK_NUM];
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u8 reg_mask;
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u8 reg_default;
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};
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static unsigned int timpani_codec_read(struct snd_soc_codec *codec,
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unsigned int reg)
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{
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struct marimba *pdrv = codec->control_data;
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int rc;
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u8 val;
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rc = marimba_read(pdrv, reg, &val, 1);
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if (IS_ERR_VALUE(rc)) {
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pr_err("%s: fail to write reg %x\n", __func__, reg);
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return 0;
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}
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return val;
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}
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static int timpani_codec_write(struct snd_soc_codec *codec, unsigned int reg,
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unsigned int value)
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{
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struct marimba *pdrv = codec->control_data;
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int rc;
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rc = marimba_write_bit_mask(pdrv, reg, (u8 *)&value, 1, 0xFF);
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if (IS_ERR_VALUE(rc)) {
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pr_err("%s: fail to write reg %x\n", __func__, reg);
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return -EIO;
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}
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pr_debug("%s: write reg %x val %x\n", __func__, reg, value);
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return 0;
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}
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static void timpani_codec_bring_up(struct snd_soc_codec *codec)
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{
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struct timpani_drv_data *timpani = snd_soc_codec_get_drvdata(codec);
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int rc;
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if (timpani->codec_pdata &&
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timpani->codec_pdata->marimba_codec_power) {
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if (timpani->ref_cnt)
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return;
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/* Codec power up sequence */
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rc = timpani->codec_pdata->marimba_codec_power(1);
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if (rc)
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pr_err("%s: could not power up timpani "
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"codec\n", __func__);
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else {
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timpani_codec_write(codec, 0xFF, 0x08);
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timpani_codec_write(codec, 0xFF, 0x0A);
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timpani_codec_write(codec, 0xFF, 0x0E);
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timpani_codec_write(codec, 0xFF, 0x07);
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timpani_codec_write(codec, 0xFF, 0x17);
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timpani_codec_write(codec, TIMPANI_A_MREF, 0x22);
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msleep(15);
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timpani->ref_cnt++;
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}
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}
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}
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static void timpani_codec_bring_down(struct snd_soc_codec *codec)
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{
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struct timpani_drv_data *timpani = snd_soc_codec_get_drvdata(codec);
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int rc;
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if (timpani->codec_pdata &&
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timpani->codec_pdata->marimba_codec_power) {
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timpani->ref_cnt--;
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if (timpani->ref_cnt >= 1)
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return;
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timpani_codec_write(codec, TIMPANI_A_MREF, TIMPANI_MREF_POR);
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timpani_codec_write(codec, 0xFF, 0x07);
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timpani_codec_write(codec, 0xFF, 0x06);
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timpani_codec_write(codec, 0xFF, 0x0E);
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timpani_codec_write(codec, 0xFF, 0x08);
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rc = timpani->codec_pdata->marimba_codec_power(0);
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if (rc)
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pr_err("%s: could not power down timpani "
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"codec\n", __func__);
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}
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}
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static void timpani_dmic_config(struct snd_soc_codec *codec, int on)
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{
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struct adie_codec_register *regs;
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int regs_sz, i;
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if (on) {
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regs = dmic_on;
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regs_sz = ARRAY_SIZE(dmic_on);
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} else {
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regs = dmic_off;
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regs_sz = ARRAY_SIZE(dmic_off);
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}
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for (i = 0; i < regs_sz; i++)
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timpani_codec_write(codec, regs[i].reg,
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(regs[i].mask & regs[i].val));
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}
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static void timpani_spk_config(struct snd_soc_codec *codec, int on)
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{
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struct adie_codec_register *regs;
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int regs_sz, i;
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if (on) {
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regs = spk_on;
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regs_sz = ARRAY_SIZE(spk_on);
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} else {
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regs = spk_off;
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regs_sz = ARRAY_SIZE(spk_off);
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}
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for (i = 0; i < regs_sz; i++)
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timpani_codec_write(codec, regs[i].reg,
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(regs[i].mask & regs[i].val));
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}
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static int timpani_startup(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_device *socdev = rtd->socdev;
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struct snd_soc_codec *codec = socdev->card->codec;
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pr_info("%s()\n", __func__);
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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pr_info("%s: playback\n", __func__);
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timpani_codec_bring_up(codec);
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timpani_spk_config(codec, 1);
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} else {
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pr_info("%s: Capture\n", __func__);
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timpani_codec_bring_up(codec);
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timpani_dmic_config(codec, 1);
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}
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return 0;
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}
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static void timpani_shutdown(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_device *socdev = rtd->socdev;
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struct snd_soc_codec *codec = socdev->card->codec;
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pr_info("%s()\n", __func__);
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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timpani_codec_bring_down(codec);
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timpani_spk_config(codec, 0);
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} else {
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timpani_codec_bring_down(codec);
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timpani_dmic_config(codec, 0);
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}
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return;
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}
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int digital_mute(struct snd_soc_dai *dai, int mute)
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{
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struct snd_soc_codec *codec = dai->codec;
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struct adie_codec_register *regs;
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int regs_sz, i;
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if (mute) {
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regs = spk_mute;
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regs_sz = ARRAY_SIZE(spk_mute);
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} else {
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regs = spk_unmute;
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regs_sz = ARRAY_SIZE(spk_unmute);
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}
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for (i = 0; i < regs_sz; i++) {
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timpani_codec_write(codec, regs[i].reg,
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(regs[i].mask & regs[i].val));
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msleep(10);
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}
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return 0;
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}
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static struct snd_soc_dai_ops timpani_dai_ops = {
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.startup = timpani_startup,
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.shutdown = timpani_shutdown,
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};
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struct snd_soc_dai timpani_codec_dai[] = {
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{
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.name = "TIMPANI Rx",
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.playback = {
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.stream_name = "Handset Playback",
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.rates = SNDRV_PCM_RATE_8000_96000,
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.formats = SNDRV_PCM_FMTBIT_S16_LE,
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.rate_max = 96000,
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.rate_min = 8000,
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.channels_min = 1,
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.channels_max = 2,
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},
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.ops = &timpani_dai_ops,
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},
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{
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.name = "TIMPANI Tx",
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.capture = {
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.stream_name = "Handset Capture",
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.rates = SNDRV_PCM_RATE_8000_96000,
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.formats = SNDRV_PCM_FMTBIT_S16_LE,
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.rate_max = 96000,
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.rate_min = 8000,
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.channels_min = 1,
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.channels_max = 2,
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},
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.ops = &timpani_dai_ops,
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}
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};
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static int timpani_soc_probe(struct platform_device *pdev)
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{
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struct snd_soc_device *socdev = platform_get_drvdata(pdev);
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struct snd_soc_codec *codec;
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int ret = 0;
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if (!timpani_codec) {
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dev_err(&pdev->dev, "core driver not yet probed\n");
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return -ENODEV;
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}
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socdev->card->codec = timpani_codec;
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codec = timpani_codec;
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ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
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if (ret < 0)
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dev_err(codec->dev, "failed to create pcms\n");
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return ret;
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}
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/* power down chip */
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static int timpani_soc_remove(struct platform_device *pdev)
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{
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struct snd_soc_device *socdev = platform_get_drvdata(pdev);
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snd_soc_free_pcms(socdev);
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return 0;
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}
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struct snd_soc_codec_device soc_codec_dev_timpani = {
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.probe = timpani_soc_probe,
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.remove = timpani_soc_remove,
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};
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EXPORT_SYMBOL_GPL(soc_codec_dev_timpani);
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static int timpani_codec_probe(struct platform_device *pdev)
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{
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struct snd_soc_codec *codec;
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struct timpani_drv_data *priv;
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pr_info("%s()\n", __func__);
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priv = kzalloc(sizeof(struct timpani_drv_data), GFP_KERNEL);
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if (priv == NULL)
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return -ENOMEM;
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codec = &priv->codec;
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snd_soc_codec_set_drvdata(codec, priv);
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priv->codec_pdata = pdev->dev.platform_data;
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mutex_init(&codec->mutex);
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INIT_LIST_HEAD(&codec->dapm_widgets);
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INIT_LIST_HEAD(&codec->dapm_paths);
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codec->name = "TIMPANI";
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codec->owner = THIS_MODULE;
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codec->read = timpani_codec_read;
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codec->write = timpani_codec_write;
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codec->dai = timpani_codec_dai;
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codec->num_dai = ARRAY_SIZE(timpani_codec_dai);
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codec->control_data = platform_get_drvdata(pdev);
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timpani_codec = codec;
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snd_soc_register_dais(timpani_codec_dai, ARRAY_SIZE(timpani_codec_dai));
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snd_soc_register_codec(codec);
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return 0;
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}
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static struct platform_driver timpani_codec_driver = {
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.probe = timpani_codec_probe,
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.driver = {
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.name = "timpani_codec",
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.owner = THIS_MODULE,
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},
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};
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static int __init timpani_codec_init(void)
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{
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return platform_driver_register(&timpani_codec_driver);
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}
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static void __exit timpani_codec_exit(void)
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{
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platform_driver_unregister(&timpani_codec_driver);
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}
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module_init(timpani_codec_init);
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module_exit(timpani_codec_exit);
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MODULE_DESCRIPTION("Timpani codec driver");
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MODULE_VERSION("1.0");
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MODULE_LICENSE("GPL v2");
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