+// 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 <common.h>
-#include <asm/arch/clk.h>
-#include <asm/arch/cpu.h>
-#include <asm/arch/power.h>
-#include <asm/gpio.h>
-#include <asm/io.h>
-#include <common.h>
+#include <audio_codec.h>
+#include <dm.h>
#include <div64.h>
#include <fdtdec.h>
#include <i2c.h>
#include <sound.h>
+#include <asm/gpio.h>
#include "i2s.h"
#include "max98095.h"
-struct max98095_priv {
- 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
*
}
*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)
{
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;
/*
* 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
* 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;
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;
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 */
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) {
break;
default:
debug("%s: Unrecognized format.\n", __func__);
- return -1;
+ return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
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;
/*
* 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;
* 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;
* 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;
/*
* 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;
-
- 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);
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;
- }
+ struct maxim_priv *priv = dev_get_priv(dev);
- parent = fdt_parent_offset(blob, node);
- if (parent < 0) {
- debug("%s: Cannot find node parent\n", __func__);
- return -1;
- }
-
- 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;
- }
- 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),
+};
projects / oweals / u-boot.git / blobdiff