X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fsound%2Fmax98095.c;h=9e08e96670e17e17c920cf6cf4791c0a2d14b63b;hb=0619af09424b58ca2f3ff2f03f5ccff9405650fa;hp=d05c261a39959c47ddf5f0dc5ecc4a8b489b6912;hpb=d2eab333a7fe83eb6bfcc1b4b8a522ce1aa4d761;p=oweals%2Fu-boot.git diff --git a/drivers/sound/max98095.c b/drivers/sound/max98095.c index d05c261a39..9e08e96670 100644 --- a/drivers/sound/max98095.c +++ b/drivers/sound/max98095.c @@ -1,112 +1,27 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * max98095.c -- MAX98095 ALSA SoC Audio driver * * Copyright 2011 Maxim Integrated Products * - * Modified for uboot by R. Chandrasekar (rcsekar@samsung.com) - * - * 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. + * Modified for U-Boot by R. Chandrasekar (rcsekar@samsung.com) */ #include -#include -#include -#include -#include -#include -#include +#include +#include #include #include #include #include +#include #include "i2s.h" #include "max98095.h" -enum max98095_type { - MAX98095, -}; - -struct max98095_priv { - enum max98095_type devtype; - unsigned int sysclk; - unsigned int rate; - unsigned int fmt; -}; - -static struct sound_codec_info g_codec_info; -struct max98095_priv g_max98095_info; -unsigned int g_max98095_i2c_dev_addr; - /* Index 0 is reserved. */ int rate_table[] = {0, 8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000, 88200, 96000}; -/* - * Writes value to a device register through i2c - * - * @param reg reg number to be write - * @param data data to be writen to the above registor - * - * @return int value 1 for change, 0 for no change or negative error code. - */ -static int max98095_i2c_write(unsigned int reg, unsigned char data) -{ - debug("%s: Write Addr : 0x%02X, Data : 0x%02X\n", - __func__, reg, data); - return i2c_write(g_max98095_i2c_dev_addr, reg, 1, &data, 1); -} - -/* - * Read a value from a device register through i2c - * - * @param reg reg number to be read - * @param data address of read data to be stored - * - * @return int value 0 for success, -1 in case of error. - */ -static unsigned int max98095_i2c_read(unsigned int reg, unsigned char *data) -{ - int ret; - - ret = i2c_read(g_max98095_i2c_dev_addr, reg, 1, data, 1); - if (ret != 0) { - debug("%s: Error while reading register %#04x\n", - __func__, reg); - return -1; - } - - return 0; -} - -/* - * update device register bits through i2c - * - * @param reg codec register - * @param mask register mask - * @param value new value - * - * @return int value 0 for success, non-zero error code. - */ -static int max98095_update_bits(unsigned int reg, unsigned char mask, - unsigned char value) -{ - int change, ret = 0; - unsigned char old, new; - - if (max98095_i2c_read(reg, &old) != 0) - return -1; - new = (old & ~mask) | (value & mask); - change = (old != new) ? 1 : 0; - if (change) - ret = max98095_i2c_write(reg, new); - if (ret < 0) - return ret; - - return change; -} - /* * codec mclk clock divider coefficients based on sampling rate * @@ -127,19 +42,19 @@ static int rate_value(int rate, u8 *value) } *value = 1; - return -1; + return -EINVAL; } /* * Sets hw params for max98095 * - * @param max98095 max98095 information pointer + * @param priv max98095 information pointer * @param rate Sampling rate * @param bits_per_sample Bits per sample * - * @return -1 for error and 0 Success. + * @return 0 for success or negative error code. */ -static int max98095_hw_params(struct max98095_priv *max98095, +static int max98095_hw_params(struct maxim_priv *priv, enum en_max_audio_interface aif_id, unsigned int rate, unsigned int bits_per_sample) { @@ -161,40 +76,39 @@ static int max98095_hw_params(struct max98095_priv *max98095, switch (bits_per_sample) { case 16: - error = max98095_update_bits(M98095_DAI_FORMAT, - M98095_DAI_WS, 0); + error = maxim_bic_or(priv, M98095_DAI_FORMAT, M98095_DAI_WS, 0); break; case 24: - error = max98095_update_bits(M98095_DAI_FORMAT, - M98095_DAI_WS, M98095_DAI_WS); + error = maxim_bic_or(priv, M98095_DAI_FORMAT, M98095_DAI_WS, + M98095_DAI_WS); break; default: debug("%s: Illegal bits per sample %d.\n", __func__, bits_per_sample); - return -1; + return -EINVAL; } if (rate_value(rate, ®val)) { debug("%s: Failed to set sample rate to %d.\n", __func__, rate); - return -1; + return -EINVAL; } - max98095->rate = rate; + priv->rate = rate; - error |= max98095_update_bits(M98095_DAI_CLKMODE, - M98095_CLKMODE_MASK, regval); + error |= maxim_bic_or(priv, M98095_DAI_CLKMODE, M98095_CLKMODE_MASK, + regval); /* Update sample rate mode */ if (rate < 50000) - error |= max98095_update_bits(M98095_DAI_FILTERS, - M98095_DAI_DHF, 0); + error |= maxim_bic_or(priv, M98095_DAI_FILTERS, + M98095_DAI_DHF, 0); else - error |= max98095_update_bits(M98095_DAI_FILTERS, - M98095_DAI_DHF, M98095_DAI_DHF); + error |= maxim_bic_or(priv, M98095_DAI_FILTERS, + M98095_DAI_DHF, M98095_DAI_DHF); if (error < 0) { debug("%s: Error setting hardware params.\n", __func__); - return -1; + return -EIO; } return 0; @@ -203,18 +117,17 @@ static int max98095_hw_params(struct max98095_priv *max98095, /* * Configures Audio interface system clock for the given frequency * - * @param max98095 max98095 information + * @param priv max98095 information * @param freq Sampling frequency in Hz * - * @return -1 for error and 0 success. + * @return 0 for success or negative error code. */ -static int max98095_set_sysclk(struct max98095_priv *max98095, - unsigned int freq) +static int max98095_set_sysclk(struct maxim_priv *priv, unsigned int freq) { int error = 0; /* Requested clock frequency is already setup */ - if (freq == max98095->sysclk) + if (freq == priv->sysclk) return 0; /* Setup clocks for slave mode, and using the PLL @@ -223,35 +136,35 @@ static int max98095_set_sysclk(struct max98095_priv *max98095, * 0x03 (when master clk is 40MHz to 60MHz).. */ if ((freq >= 10000000) && (freq < 20000000)) { - error = max98095_i2c_write(M98095_026_SYS_CLK, 0x10); + error = maxim_i2c_write(priv, M98095_026_SYS_CLK, 0x10); } else if ((freq >= 20000000) && (freq < 40000000)) { - error = max98095_i2c_write(M98095_026_SYS_CLK, 0x20); + error = maxim_i2c_write(priv, M98095_026_SYS_CLK, 0x20); } else if ((freq >= 40000000) && (freq < 60000000)) { - error = max98095_i2c_write(M98095_026_SYS_CLK, 0x30); + error = maxim_i2c_write(priv, M98095_026_SYS_CLK, 0x30); } else { debug("%s: Invalid master clock frequency\n", __func__); - return -1; + return -EINVAL; } debug("%s: Clock at %uHz\n", __func__, freq); if (error < 0) - return -1; + return -EIO; - max98095->sysclk = freq; + priv->sysclk = freq; return 0; } /* * Sets Max98095 I2S format * - * @param max98095 max98095 information + * @param priv max98095 information * @param fmt i2S format - supports a subset of the options defined * in i2s.h. * - * @return -1 for error and 0 Success. + * @return 0 for success or negative error code. */ -static int max98095_set_fmt(struct max98095_priv *max98095, int fmt, +static int max98095_set_fmt(struct maxim_priv *priv, int fmt, enum en_max_audio_interface aif_id) { u8 regval = 0; @@ -261,10 +174,10 @@ static int max98095_set_fmt(struct max98095_priv *max98095, int fmt, unsigned short M98095_DAI_FORMAT; unsigned short M98095_DAI_CLOCK; - if (fmt == max98095->fmt) + if (fmt == priv->fmt) return 0; - max98095->fmt = fmt; + priv->fmt = fmt; if (aif_id == AIF1) { M98095_DAI_CLKCFG_HI = M98095_028_DAI1_CLKCFG_HI; @@ -281,10 +194,8 @@ static int max98095_set_fmt(struct max98095_priv *max98095, int fmt, switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBS_CFS: /* Slave mode PLL */ - error |= max98095_i2c_write(M98095_DAI_CLKCFG_HI, - 0x80); - error |= max98095_i2c_write(M98095_DAI_CLKCFG_LO, - 0x00); + error |= maxim_i2c_write(priv, M98095_DAI_CLKCFG_HI, 0x80); + error |= maxim_i2c_write(priv, M98095_DAI_CLKCFG_LO, 0x00); break; case SND_SOC_DAIFMT_CBM_CFM: /* Set to master mode */ @@ -294,7 +205,7 @@ static int max98095_set_fmt(struct max98095_priv *max98095, int fmt, case SND_SOC_DAIFMT_CBM_CFS: default: debug("%s: Clock mode unsupported\n", __func__); - return -1; + return -EINVAL; } switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { @@ -305,7 +216,7 @@ static int max98095_set_fmt(struct max98095_priv *max98095, int fmt, break; default: debug("%s: Unrecognized format.\n", __func__); - return -1; + return -EINVAL; } switch (fmt & SND_SOC_DAIFMT_INV_MASK) { @@ -322,20 +233,18 @@ static int max98095_set_fmt(struct max98095_priv *max98095, int fmt, break; default: debug("%s: Unrecognized inversion settings.\n", __func__); - return -1; + return -EINVAL; } - error |= max98095_update_bits(M98095_DAI_FORMAT, - M98095_DAI_MAS | M98095_DAI_DLY | - M98095_DAI_BCI | M98095_DAI_WCI, - regval); + error |= maxim_bic_or(priv, M98095_DAI_FORMAT, + M98095_DAI_MAS | M98095_DAI_DLY | + M98095_DAI_BCI | M98095_DAI_WCI, regval); - error |= max98095_i2c_write(M98095_DAI_CLOCK, - M98095_DAI_BSEL64); + error |= maxim_i2c_write(priv, M98095_DAI_CLOCK, M98095_DAI_BSEL64); if (error < 0) { debug("%s: Error setting i2s format.\n", __func__); - return -1; + return -EIO; } return 0; @@ -344,9 +253,10 @@ static int max98095_set_fmt(struct max98095_priv *max98095, int fmt, /* * resets the audio codec * - * @return -1 for error and 0 success. + * @param priv Private data for driver + * @return 0 for success or negative error code. */ -static int max98095_reset(void) +static int max98095_reset(struct maxim_priv *priv) { int i, ret; @@ -354,13 +264,13 @@ static int max98095_reset(void) * Gracefully reset the DSP core and the codec hardware in a proper * sequence. */ - ret = max98095_i2c_write(M98095_00F_HOST_CFG, 0); + ret = maxim_i2c_write(priv, M98095_00F_HOST_CFG, 0); if (ret != 0) { debug("%s: Failed to reset DSP: %d\n", __func__, ret); return ret; } - ret = max98095_i2c_write(M98095_097_PWR_SYS, 0); + ret = maxim_i2c_write(priv, M98095_097_PWR_SYS, 0); if (ret != 0) { debug("%s: Failed to reset codec: %d\n", __func__, ret); return ret; @@ -371,7 +281,7 @@ static int max98095_reset(void) * reset hardware control register. */ for (i = M98095_010_HOST_INT_CFG; i < M98095_REG_MAX_CACHED; i++) { - ret = max98095_i2c_write(i, 0); + ret = maxim_i2c_write(priv, i, 0); if (ret < 0) { debug("%s: Failed to reset: %d\n", __func__, ret); return ret; @@ -384,132 +294,125 @@ static int max98095_reset(void) /* * Intialise max98095 codec device * - * @param max98095 max98095 information - * - * @returns -1 for error and 0 Success. + * @param priv max98095 information + * @return 0 for success or negative error code. */ -static int max98095_device_init(struct max98095_priv *max98095, - enum en_max_audio_interface aif_id) +static int max98095_device_init(struct maxim_priv *priv) { unsigned char id; - int error = 0; + int ret; /* reset the codec, the DSP core, and disable all interrupts */ - error = max98095_reset(); - if (error != 0) { + ret = max98095_reset(priv); + if (ret != 0) { debug("Reset\n"); - return error; + return ret; } /* initialize private data */ - max98095->sysclk = -1U; - max98095->rate = -1U; - max98095->fmt = -1U; + priv->sysclk = -1U; + priv->rate = -1U; + priv->fmt = -1U; - error = max98095_i2c_read(M98095_0FF_REV_ID, &id); - if (error < 0) { + ret = maxim_i2c_read(priv, M98095_0FF_REV_ID, &id); + if (ret < 0) { debug("%s: Failure reading hardware revision: %d\n", __func__, id); - goto err_access; + return ret; } debug("%s: Hardware revision: %c\n", __func__, (id - 0x40) + 'A'); - error |= max98095_i2c_write(M98095_097_PWR_SYS, M98095_PWRSV); + return 0; +} + +static int max98095_setup_interface(struct maxim_priv *priv, + enum en_max_audio_interface aif_id) +{ + int error; + + error = maxim_i2c_write(priv, M98095_097_PWR_SYS, M98095_PWRSV); /* * initialize registers to hardware default configuring audio * interface2 to DAC */ if (aif_id == AIF1) - error |= max98095_i2c_write(M98095_048_MIX_DAC_LR, + error |= maxim_i2c_write(priv, M98095_048_MIX_DAC_LR, M98095_DAI1L_TO_DACL | M98095_DAI1R_TO_DACR); else - error |= max98095_i2c_write(M98095_048_MIX_DAC_LR, + error |= maxim_i2c_write(priv, M98095_048_MIX_DAC_LR, M98095_DAI2M_TO_DACL | M98095_DAI2M_TO_DACR); - error |= max98095_i2c_write(M98095_092_PWR_EN_OUT, + error |= maxim_i2c_write(priv, M98095_092_PWR_EN_OUT, M98095_SPK_SPREADSPECTRUM); - error |= max98095_i2c_write(M98095_04E_CFG_HP, M98095_HPNORMAL); + error |= maxim_i2c_write(priv, M98095_04E_CFG_HP, M98095_HPNORMAL); if (aif_id == AIF1) - error |= max98095_i2c_write(M98095_02C_DAI1_IOCFG, + error |= maxim_i2c_write(priv, M98095_02C_DAI1_IOCFG, M98095_S1NORMAL | M98095_SDATA); else - error |= max98095_i2c_write(M98095_036_DAI2_IOCFG, + error |= maxim_i2c_write(priv, M98095_036_DAI2_IOCFG, M98095_S2NORMAL | M98095_SDATA); /* take the codec out of the shut down */ - error |= max98095_update_bits(M98095_097_PWR_SYS, M98095_SHDNRUN, - M98095_SHDNRUN); - /* route DACL and DACR output to HO and Spekers */ - error |= max98095_i2c_write(M98095_050_MIX_SPK_LEFT, 0x01); /* DACL */ - error |= max98095_i2c_write(M98095_051_MIX_SPK_RIGHT, 0x01);/* DACR */ - error |= max98095_i2c_write(M98095_04C_MIX_HP_LEFT, 0x01); /* DACL */ - error |= max98095_i2c_write(M98095_04D_MIX_HP_RIGHT, 0x01); /* DACR */ + error |= maxim_bic_or(priv, M98095_097_PWR_SYS, M98095_SHDNRUN, + M98095_SHDNRUN); + /* + * route DACL and DACR output to HO and Speakers + * Ordering: DACL, DACR, DACL, DACR + */ + error |= maxim_i2c_write(priv, M98095_050_MIX_SPK_LEFT, 0x01); + error |= maxim_i2c_write(priv, M98095_051_MIX_SPK_RIGHT, 0x01); + error |= maxim_i2c_write(priv, M98095_04C_MIX_HP_LEFT, 0x01); + error |= maxim_i2c_write(priv, M98095_04D_MIX_HP_RIGHT, 0x01); /* power Enable */ - error |= max98095_i2c_write(M98095_091_PWR_EN_OUT, 0xF3); + error |= maxim_i2c_write(priv, M98095_091_PWR_EN_OUT, 0xF3); /* set Volume */ - error |= max98095_i2c_write(M98095_064_LVL_HP_L, 15); - error |= max98095_i2c_write(M98095_065_LVL_HP_R, 15); - error |= max98095_i2c_write(M98095_067_LVL_SPK_L, 16); - error |= max98095_i2c_write(M98095_068_LVL_SPK_R, 16); + error |= maxim_i2c_write(priv, M98095_064_LVL_HP_L, 15); + error |= maxim_i2c_write(priv, M98095_065_LVL_HP_R, 15); + error |= maxim_i2c_write(priv, M98095_067_LVL_SPK_L, 16); + error |= maxim_i2c_write(priv, M98095_068_LVL_SPK_R, 16); /* Enable DAIs */ - error |= max98095_i2c_write(M98095_093_BIAS_CTRL, 0x30); + error |= maxim_i2c_write(priv, M98095_093_BIAS_CTRL, 0x30); if (aif_id == AIF1) - error |= max98095_i2c_write(M98095_096_PWR_DAC_CK, 0x01); + error |= maxim_i2c_write(priv, M98095_096_PWR_DAC_CK, 0x01); else - error |= max98095_i2c_write(M98095_096_PWR_DAC_CK, 0x07); + error |= maxim_i2c_write(priv, M98095_096_PWR_DAC_CK, 0x07); -err_access: if (error < 0) - return -1; + return -EIO; return 0; } -static int max98095_do_init(struct sound_codec_info *pcodec_info, +static int max98095_do_init(struct maxim_priv *priv, enum en_max_audio_interface aif_id, int sampling_rate, int mclk_freq, int bits_per_sample) { int ret = 0; - /* Enable codec clock */ - set_xclkout(); - - /* shift the device address by 1 for 7 bit addressing */ - g_max98095_i2c_dev_addr = pcodec_info->i2c_dev_addr >> 1; - - if (pcodec_info->codec_type == CODEC_MAX_98095) { - g_max98095_info.devtype = MAX98095; - } else { - debug("%s: Codec id [%d] not defined\n", __func__, - pcodec_info->codec_type); - return -1; - } - - ret = max98095_device_init(&g_max98095_info, aif_id); + ret = max98095_setup_interface(priv, aif_id); if (ret < 0) { - debug("%s: max98095 codec chip init failed\n", __func__); + debug("%s: max98095 setup interface failed\n", __func__); return ret; } - ret = max98095_set_sysclk(&g_max98095_info, mclk_freq); + ret = max98095_set_sysclk(priv, mclk_freq); if (ret < 0) { debug("%s: max98095 codec set sys clock failed\n", __func__); return ret; } - ret = max98095_hw_params(&g_max98095_info, aif_id, sampling_rate, + ret = max98095_hw_params(priv, aif_id, sampling_rate, bits_per_sample); if (ret == 0) { - ret = max98095_set_fmt(&g_max98095_info, - SND_SOC_DAIFMT_I2S | + ret = max98095_set_fmt(priv, SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, aif_id); @@ -518,70 +421,45 @@ static int max98095_do_init(struct sound_codec_info *pcodec_info, return ret; } -static int get_max98095_codec_values(struct sound_codec_info *pcodec_info, - const void *blob) +static int max98095_set_params(struct udevice *dev, int interface, int rate, + int mclk_freq, int bits_per_sample, + uint channels) { - int error = 0; - enum fdt_compat_id compat; - int node; - int parent; - - /* Get the node from FDT for codec */ - node = fdtdec_next_compatible(blob, 0, COMPAT_MAXIM_98095_CODEC); - if (node <= 0) { - debug("EXYNOS_SOUND: No node for codec in device tree\n"); - debug("node = %d\n", node); - return -1; - } - - parent = fdt_parent_offset(blob, node); - if (parent < 0) { - debug("%s: Cannot find node parent\n", __func__); - return -1; - } + struct maxim_priv *priv = dev_get_priv(dev); - compat = fdtdec_lookup(blob, parent); - switch (compat) { - case COMPAT_SAMSUNG_S3C2440_I2C: - pcodec_info->i2c_bus = i2c_get_bus_num_fdt(parent); - error |= pcodec_info->i2c_bus; - debug("i2c bus = %d\n", pcodec_info->i2c_bus); - pcodec_info->i2c_dev_addr = fdtdec_get_int(blob, node, - "reg", 0); - error |= pcodec_info->i2c_dev_addr; - debug("i2c dev addr = %x\n", pcodec_info->i2c_dev_addr); - break; - default: - debug("%s: Unknown compat id %d\n", __func__, compat); - return -1; - } - pcodec_info->codec_type = CODEC_MAX_98095; - if (error == -1) { - debug("fail to get max98095 codec node properties\n"); - return -1; - } - - return 0; + return max98095_do_init(priv, interface, rate, mclk_freq, + bits_per_sample); } -/* max98095 Device Initialisation */ -int max98095_init(const void *blob, enum en_max_audio_interface aif_id, - int sampling_rate, int mclk_freq, - int bits_per_sample) +static int max98095_probe(struct udevice *dev) { + struct maxim_priv *priv = dev_get_priv(dev); int ret; - int old_bus = i2c_get_bus_num(); - struct sound_codec_info *pcodec_info = &g_codec_info; - if (get_max98095_codec_values(pcodec_info, blob) < 0) { - debug("FDT Codec values failed\n"); - return -1; + priv->dev = dev; + ret = max98095_device_init(priv); + if (ret < 0) { + debug("%s: max98095 codec chip init failed\n", __func__); + return ret; } - i2c_set_bus_num(pcodec_info->i2c_bus); - ret = max98095_do_init(pcodec_info, aif_id, sampling_rate, mclk_freq, - bits_per_sample); - i2c_set_bus_num(old_bus); - - return ret; + return 0; } + +static const struct audio_codec_ops max98095_ops = { + .set_params = max98095_set_params, +}; + +static const struct udevice_id max98095_ids[] = { + { .compatible = "maxim,max98095" }, + { } +}; + +U_BOOT_DRIVER(max98095) = { + .name = "max98095", + .id = UCLASS_AUDIO_CODEC, + .of_match = max98095_ids, + .probe = max98095_probe, + .ops = &max98095_ops, + .priv_auto_alloc_size = sizeof(struct maxim_priv), +};