diff options
Diffstat (limited to 'sound/soc/s3c24xx')
| -rw-r--r-- | sound/soc/s3c24xx/Kconfig | 11 | ||||
| -rw-r--r-- | sound/soc/s3c24xx/Makefile | 4 | ||||
| -rw-r--r-- | sound/soc/s3c24xx/ln2440sbc_alc650.c | 85 | ||||
| -rw-r--r-- | sound/soc/s3c24xx/neo1973_wm8753.c | 7 | ||||
| -rw-r--r-- | sound/soc/s3c24xx/s3c2412-i2s.c | 744 | ||||
| -rw-r--r-- | sound/soc/s3c24xx/s3c2412-i2s.h | 38 | ||||
| -rw-r--r-- | sound/soc/s3c24xx/s3c2443-ac97.c | 5 | ||||
| -rw-r--r-- | sound/soc/s3c24xx/s3c24xx-ac97.h | 6 | ||||
| -rw-r--r-- | sound/soc/s3c24xx/s3c24xx-i2s.c | 45 | ||||
| -rw-r--r-- | sound/soc/s3c24xx/s3c24xx-pcm.c | 49 | ||||
| -rw-r--r-- | sound/soc/s3c24xx/smdk2443_wm9710.c | 1 |
11 files changed, 961 insertions, 34 deletions
diff --git a/sound/soc/s3c24xx/Kconfig b/sound/soc/s3c24xx/Kconfig index 5632a2e1518d..1f6dbfc4caa8 100644 --- a/sound/soc/s3c24xx/Kconfig +++ b/sound/soc/s3c24xx/Kconfig @@ -10,6 +10,9 @@ config SND_S3C24XX_SOC config SND_S3C24XX_SOC_I2S tristate +config SND_S3C2412_SOC_I2S + tristate + config SND_S3C2443_SOC_AC97 tristate select AC97_BUS @@ -34,4 +37,12 @@ config SND_S3C24XX_SOC_SMDK2443_WM9710 Say Y if you want to add support for SoC audio on smdk2443 with the WM9710. +config SND_S3C24XX_SOC_LN2440SBC_ALC650 + tristate "SoC AC97 Audio support for LN2440SBC - ALC650" + depends on SND_S3C24XX_SOC + select SND_S3C2443_SOC_AC97 + select SND_SOC_AC97_CODEC + help + Say Y if you want to add support for SoC audio on ln2440sbc + with the ALC650. diff --git a/sound/soc/s3c24xx/Makefile b/sound/soc/s3c24xx/Makefile index 13c92f0fa1e4..0aa5fb0b9700 100644 --- a/sound/soc/s3c24xx/Makefile +++ b/sound/soc/s3c24xx/Makefile @@ -1,15 +1,19 @@ # S3c24XX Platform Support snd-soc-s3c24xx-objs := s3c24xx-pcm.o snd-soc-s3c24xx-i2s-objs := s3c24xx-i2s.o +snd-soc-s3c2412-i2s-objs := s3c2412-i2s.o snd-soc-s3c2443-ac97-objs := s3c2443-ac97.o obj-$(CONFIG_SND_S3C24XX_SOC) += snd-soc-s3c24xx.o obj-$(CONFIG_SND_S3C24XX_SOC_I2S) += snd-soc-s3c24xx-i2s.o obj-$(CONFIG_SND_S3C2443_SOC_AC97) += snd-soc-s3c2443-ac97.o +obj-$(CONFIG_SND_S3C2412_SOC_I2S) += snd-soc-s3c2412-i2s.o # S3C24XX Machine Support snd-soc-neo1973-wm8753-objs := neo1973_wm8753.o snd-soc-smdk2443-wm9710-objs := smdk2443_wm9710.o +snd-soc-ln2440sbc-alc650-objs := ln2440sbc_alc650.o obj-$(CONFIG_SND_S3C24XX_SOC_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o obj-$(CONFIG_SND_S3C24XX_SOC_SMDK2443_WM9710) += snd-soc-smdk2443-wm9710.o +obj-$(CONFIG_SND_S3C24XX_SOC_LN2440SBC_ALC650) += snd-soc-ln2440sbc-alc650.o diff --git a/sound/soc/s3c24xx/ln2440sbc_alc650.c b/sound/soc/s3c24xx/ln2440sbc_alc650.c new file mode 100644 index 000000000000..9ed8f2e8da10 --- /dev/null +++ b/sound/soc/s3c24xx/ln2440sbc_alc650.c @@ -0,0 +1,85 @@ +/* + * SoC audio for ln2440sbc + * + * Copyright 2007 KonekTel, a.s. + * Author: Ivan Kuten + * ivan.kuten@promwad.com + * + * Heavily based on smdk2443_wm9710.c + * Copyright 2007 Wolfson Microelectronics PLC. + * Author: Graeme Gregory + * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.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. + * + */ + +#include <linux/module.h> +#include <linux/device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> + +#include "../codecs/ac97.h" +#include "s3c24xx-pcm.h" +#include "s3c24xx-ac97.h" + +static struct snd_soc_machine ln2440sbc; + +static struct snd_soc_dai_link ln2440sbc_dai[] = { +{ + .name = "AC97", + .stream_name = "AC97 HiFi", + .cpu_dai = &s3c2443_ac97_dai[0], + .codec_dai = &ac97_dai, +}, +}; + +static struct snd_soc_machine ln2440sbc = { + .name = "LN2440SBC", + .dai_link = ln2440sbc_dai, + .num_links = ARRAY_SIZE(ln2440sbc_dai), +}; + +static struct snd_soc_device ln2440sbc_snd_ac97_devdata = { + .machine = &ln2440sbc, + .platform = &s3c24xx_soc_platform, + .codec_dev = &soc_codec_dev_ac97, +}; + +static struct platform_device *ln2440sbc_snd_ac97_device; + +static int __init ln2440sbc_init(void) +{ + int ret; + + ln2440sbc_snd_ac97_device = platform_device_alloc("soc-audio", -1); + if (!ln2440sbc_snd_ac97_device) + return -ENOMEM; + + platform_set_drvdata(ln2440sbc_snd_ac97_device, + &ln2440sbc_snd_ac97_devdata); + ln2440sbc_snd_ac97_devdata.dev = &ln2440sbc_snd_ac97_device->dev; + ret = platform_device_add(ln2440sbc_snd_ac97_device); + + if (ret) + platform_device_put(ln2440sbc_snd_ac97_device); + + return ret; +} + +static void __exit ln2440sbc_exit(void) +{ + platform_device_unregister(ln2440sbc_snd_ac97_device); +} + +module_init(ln2440sbc_init); +module_exit(ln2440sbc_exit); + +/* Module information */ +MODULE_AUTHOR("Ivan Kuten"); +MODULE_DESCRIPTION("ALSA SoC ALC650 LN2440SBC"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/s3c24xx/neo1973_wm8753.c b/sound/soc/s3c24xx/neo1973_wm8753.c index d5a8fc2cf8d6..6ee115ceb011 100644 --- a/sound/soc/s3c24xx/neo1973_wm8753.c +++ b/sound/soc/s3c24xx/neo1973_wm8753.c @@ -22,7 +22,6 @@ #include <linux/interrupt.h> #include <linux/platform_device.h> #include <linux/i2c.h> -#include <sound/driver.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/soc.h> @@ -30,13 +29,15 @@ #include <asm/mach-types.h> #include <asm/hardware/scoop.h> -#include <asm/arch/regs-iis.h> #include <asm/arch/regs-clock.h> #include <asm/arch/regs-gpio.h> #include <asm/hardware.h> #include <asm/arch/audio.h> #include <asm/io.h> #include <asm/arch/spi-gpio.h> + +#include <asm/plat-s3c24xx/regs-iis.h> + #include "../codecs/wm8753.h" #include "lm4857.h" #include "s3c24xx-pcm.h" @@ -573,7 +574,7 @@ static struct snd_soc_device neo1973_snd_devdata = { static struct i2c_client client_template; -static unsigned short normal_i2c[] = { 0x7C, I2C_CLIENT_END }; +static const unsigned short normal_i2c[] = { 0x7C, I2C_CLIENT_END }; /* Magic definition of all other variables and things */ I2C_CLIENT_INSMOD; diff --git a/sound/soc/s3c24xx/s3c2412-i2s.c b/sound/soc/s3c24xx/s3c2412-i2s.c new file mode 100644 index 000000000000..c4a46dd589b3 --- /dev/null +++ b/sound/soc/s3c24xx/s3c2412-i2s.c @@ -0,0 +1,744 @@ +/* sound/soc/s3c24xx/s3c2412-i2s.c + * + * ALSA Soc Audio Layer - S3C2412 I2S driver + * + * Copyright (c) 2006 Wolfson Microelectronics PLC. + * Graeme Gregory graeme.gregory@wolfsonmicro.com + * linux@wolfsonmicro.com + * + * Copyright (c) 2007, 2004-2005 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * 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. + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/delay.h> +#include <linux/clk.h> +#include <linux/kernel.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/initval.h> +#include <sound/soc.h> +#include <asm/hardware.h> + +#include <linux/io.h> +#include <asm/dma.h> + +#include <asm/plat-s3c24xx/regs-s3c2412-iis.h> + +#include <asm/arch/regs-gpio.h> +#include <asm/arch/audio.h> +#include <asm/arch/dma.h> + +#include "s3c24xx-pcm.h" +#include "s3c2412-i2s.h" + +#define S3C2412_I2S_DEBUG 0 +#define S3C2412_I2S_DEBUG_CON 0 + +#if S3C2412_I2S_DEBUG +#define DBG(x...) printk(KERN_INFO x) +#else +#define DBG(x...) do { } while (0) +#endif + +static struct s3c2410_dma_client s3c2412_dma_client_out = { + .name = "I2S PCM Stereo out" +}; + +static struct s3c2410_dma_client s3c2412_dma_client_in = { + .name = "I2S PCM Stereo in" +}; + +static struct s3c24xx_pcm_dma_params s3c2412_i2s_pcm_stereo_out = { + .client = &s3c2412_dma_client_out, + .channel = DMACH_I2S_OUT, + .dma_addr = S3C2410_PA_IIS + S3C2412_IISTXD, + .dma_size = 4, +}; + +static struct s3c24xx_pcm_dma_params s3c2412_i2s_pcm_stereo_in = { + .client = &s3c2412_dma_client_in, + .channel = DMACH_I2S_IN, + .dma_addr = S3C2410_PA_IIS + S3C2412_IISRXD, + .dma_size = 4, +}; + +struct s3c2412_i2s_info { + struct device *dev; + void __iomem *regs; + struct clk *iis_clk; + struct clk *iis_pclk; + struct clk *iis_cclk; + + u32 suspend_iismod; + u32 suspend_iiscon; + u32 suspend_iispsr; +}; + +static struct s3c2412_i2s_info s3c2412_i2s; + +#define bit_set(v, b) (((v) & (b)) ? 1 : 0) + +#if S3C2412_I2S_DEBUG_CON +static void dbg_showcon(const char *fn, u32 con) +{ + printk(KERN_DEBUG "%s: LRI=%d, TXFEMPT=%d, RXFEMPT=%d, TXFFULL=%d, RXFFULL=%d\n", fn, + bit_set(con, S3C2412_IISCON_LRINDEX), + bit_set(con, S3C2412_IISCON_TXFIFO_EMPTY), + bit_set(con, S3C2412_IISCON_RXFIFO_EMPTY), + bit_set(con, S3C2412_IISCON_TXFIFO_FULL), + bit_set(con, S3C2412_IISCON_RXFIFO_FULL)); + + printk(KERN_DEBUG "%s: PAUSE: TXDMA=%d, RXDMA=%d, TXCH=%d, RXCH=%d\n", + fn, + bit_set(con, S3C2412_IISCON_TXDMA_PAUSE), + bit_set(con, S3C2412_IISCON_RXDMA_PAUSE), + bit_set(con, S3C2412_IISCON_TXCH_PAUSE), + bit_set(con, S3C2412_IISCON_RXCH_PAUSE)); + printk(KERN_DEBUG "%s: ACTIVE: TXDMA=%d, RXDMA=%d, IIS=%d\n", fn, + bit_set(con, S3C2412_IISCON_TXDMA_ACTIVE), + bit_set(con, S3C2412_IISCON_RXDMA_ACTIVE), + bit_set(con, S3C2412_IISCON_IIS_ACTIVE)); +} +#else +static inline void dbg_showcon(const char *fn, u32 con) +{ +} +#endif + +/* Turn on or off the transmission path. */ +static void s3c2412_snd_txctrl(int on) +{ + struct s3c2412_i2s_info *i2s = &s3c2412_i2s; + void __iomem *regs = i2s->regs; + u32 fic, con, mod; + + DBG("%s(%d)\n", __func__, on); + + fic = readl(regs + S3C2412_IISFIC); + con = readl(regs + S3C2412_IISCON); + mod = readl(regs + S3C2412_IISMOD); + + DBG("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic); + + if (on) { + con |= S3C2412_IISCON_TXDMA_ACTIVE | S3C2412_IISCON_IIS_ACTIVE; + con &= ~S3C2412_IISCON_TXDMA_PAUSE; + con &= ~S3C2412_IISCON_TXCH_PAUSE; + + switch (mod & S3C2412_IISMOD_MODE_MASK) { + case S3C2412_IISMOD_MODE_TXONLY: + case S3C2412_IISMOD_MODE_TXRX: + /* do nothing, we are in the right mode */ + break; + + case S3C2412_IISMOD_MODE_RXONLY: + mod &= ~S3C2412_IISMOD_MODE_MASK; + mod |= S3C2412_IISMOD_MODE_TXRX; + break; + + default: + dev_err(i2s->dev, "TXEN: Invalid MODE in IISMOD\n"); + } + + writel(con, regs + S3C2412_IISCON); + writel(mod, regs + S3C2412_IISMOD); + } else { + /* Note, we do not have any indication that the FIFO problems + * tha the S3C2410/2440 had apply here, so we should be able + * to disable the DMA and TX without resetting the FIFOS. + */ + + con |= S3C2412_IISCON_TXDMA_PAUSE; + con |= S3C2412_IISCON_TXCH_PAUSE; + con &= ~S3C2412_IISCON_TXDMA_ACTIVE; + + switch (mod & S3C2412_IISMOD_MODE_MASK) { + case S3C2412_IISMOD_MODE_TXRX: + mod &= ~S3C2412_IISMOD_MODE_MASK; + mod |= S3C2412_IISMOD_MODE_RXONLY; + break; + + case S3C2412_IISMOD_MODE_TXONLY: + mod &= ~S3C2412_IISMOD_MODE_MASK; + con &= ~S3C2412_IISCON_IIS_ACTIVE; + break; + + default: + dev_err(i2s->dev, "TXDIS: Invalid MODE in IISMOD\n"); + } + + writel(mod, regs + S3C2412_IISMOD); + writel(con, regs + S3C2412_IISCON); + } + + fic = readl(regs + S3C2412_IISFIC); + dbg_showcon(__func__, con); + DBG("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic); +} + +static void s3c2412_snd_rxctrl(int on) +{ + struct s3c2412_i2s_info *i2s = &s3c2412_i2s; + void __iomem *regs = i2s->regs; + u32 fic, con, mod; + + DBG("%s(%d)\n", __func__, on); + + fic = readl(regs + S3C2412_IISFIC); + con = readl(regs + S3C2412_IISCON); + mod = readl(regs + S3C2412_IISMOD); + + DBG("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic); + + if (on) { + con |= S3C2412_IISCON_RXDMA_ACTIVE | S3C2412_IISCON_IIS_ACTIVE; + con &= ~S3C2412_IISCON_RXDMA_PAUSE; + con &= ~S3C2412_IISCON_RXCH_PAUSE; + + switch (mod & S3C2412_IISMOD_MODE_MASK) { + case S3C2412_IISMOD_MODE_TXRX: + case S3C2412_IISMOD_MODE_RXONLY: + /* do nothing, we are in the right mode */ + break; + + case S3C2412_IISMOD_MODE_TXONLY: + mod &= ~S3C2412_IISMOD_MODE_MASK; + mod |= S3C2412_IISMOD_MODE_TXRX; + break; + + default: + dev_err(i2s->dev, "RXEN: Invalid MODE in IISMOD\n"); + } + + writel(mod, regs + S3C2412_IISMOD); + writel(con, regs + S3C2412_IISCON); + } else { + /* See txctrl notes on FIFOs. */ + + con &= ~S3C2412_IISCON_RXDMA_ACTIVE; + con |= S3C2412_IISCON_RXDMA_PAUSE; + con |= S3C2412_IISCON_RXCH_PAUSE; + + switch (mod & S3C2412_IISMOD_MODE_MASK) { + case S3C2412_IISMOD_MODE_RXONLY: + con &= ~S3C2412_IISCON_IIS_ACTIVE; + mod &= ~S3C2412_IISMOD_MODE_MASK; + break; + + case S3C2412_IISMOD_MODE_TXRX: + mod &= ~S3C2412_IISMOD_MODE_MASK; + mod |= S3C2412_IISMOD_MODE_TXONLY; + break; + + default: + dev_err(i2s->dev, "RXEN: Invalid MODE in IISMOD\n"); + } + + writel(con, regs + S3C2412_IISCON); + writel(mod, regs + S3C2412_IISMOD); + } + + fic = readl(regs + S3C2412_IISFIC); + DBG("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic); +} + + +/* + * Wait for the LR signal to allow synchronisation to the L/R clock + * from the codec. May only be needed for slave mode. + */ +static int s3c2412_snd_lrsync(void) +{ + u32 iiscon; + unsigned long timeout = jiffies + msecs_to_jiffies(5); + + DBG("Entered %s\n", __func__); + + while (1) { + iiscon = readl(s3c2412_i2s.regs + S3C2412_IISCON); + if (iiscon & S3C2412_IISCON_LRINDEX) + break; + + if (timeout < jiffies) { + printk(KERN_ERR "%s: timeout\n", __func__); + return -ETIMEDOUT; + } + } + + return 0; +} + +/* + * Check whether CPU is the master or slave + */ +static inline int s3c2412_snd_is_clkmaster(void) +{ + u32 iismod = readl(s3c2412_i2s.regs + S3C2412_IISMOD); + + DBG("Entered %s\n", __func__); + + iismod &= S3C2412_IISMOD_MASTER_MASK; + return !(iismod == S3C2412_IISMOD_SLAVE); +} + +/* + * Set S3C2412 I2S DAI format + */ +static int s3c2412_i2s_set_fmt(struct snd_soc_cpu_dai *cpu_dai, + unsigned int fmt) +{ + u32 iismod; + + + DBG("Entered %s\n", __func__); + + iismod = readl(s3c2412_i2s.regs + S3C2412_IISMOD); + DBG("hw_params r: IISMOD: %x \n", iismod); + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + iismod &= ~S3C2412_IISMOD_MASTER_MASK; + iismod |= S3C2412_IISMOD_SLAVE; + break; + case SND_SOC_DAIFMT_CBS_CFS: + iismod &= ~S3C2412_IISMOD_MASTER_MASK; + iismod |= S3C2412_IISMOD_MASTER_INTERNAL; + break; + default: + DBG("unknwon master/slave format\n"); + return -EINVAL; + } + + iismod &= ~S3C2412_IISMOD_SDF_MASK; + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_RIGHT_J: + iismod |= S3C2412_IISMOD_SDF_MSB; + break; + case SND_SOC_DAIFMT_LEFT_J: + iismod |= S3C2412_IISMOD_SDF_LSB; + break; + case SND_SOC_DAIFMT_I2S: + iismod |= S3C2412_IISMOD_SDF_IIS; + break; + default: + DBG("Unknown data format\n"); + return -EINVAL; + } + + writel(iismod, s3c2412_i2s.regs + S3C2412_IISMOD); + DBG("hw_params w: IISMOD: %x \n", iismod); + return 0; +} + +static int s3c2412_i2s_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + u32 iismod; + + DBG("Entered %s\n", __func__); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + rtd->dai->cpu_dai->dma_data = &s3c2412_i2s_pcm_stereo_out; + else + rtd->dai->cpu_dai->dma_data = &s3c2412_i2s_pcm_stereo_in; + + /* Working copies of register */ + iismod = readl(s3c2412_i2s.regs + S3C2412_IISMOD); + DBG("%s: r: IISMOD: %x\n", __func__, iismod); + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S8: + iismod |= S3C2412_IISMOD_8BIT; + break; + case SNDRV_PCM_FORMAT_S16_LE: + iismod &= ~S3C2412_IISMOD_8BIT; + break; + } + + writel(iismod, s3c2412_i2s.regs + S3C2412_IISMOD); + DBG("%s: w: IISMOD: %x\n", __func__, iismod); + return 0; +} + +static int s3c2412_i2s_trigger(struct snd_pcm_substream *substream, int cmd) +{ + int capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); + unsigned long irqs; + int ret = 0; + + DBG("Entered %s\n", __func__); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + /* On start, ensure that the FIFOs are cleared and reset. */ + + writel(capture ? S3C2412_IISFIC_RXFLUSH : S3C2412_IISFIC_TXFLUSH, + s3c2412_i2s.regs + S3C2412_IISFIC); + + /* clear again, just in case */ + writel(0x0, s3c2412_i2s.regs + S3C2412_IISFIC); + + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + if (!s3c2412_snd_is_clkmaster()) { + ret = s3c2412_snd_lrsync(); + if (ret) + goto exit_err; + } + + local_irq_save(irqs); + + if (capture) + s3c2412_snd_rxctrl(1); + else + s3c2412_snd_txctrl(1); + + local_irq_restore(irqs); + break; + + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + local_irq_save(irqs); + + if (capture) + s3c2412_snd_rxctrl(0); + else + s3c2412_snd_txctrl(0); + + local_irq_restore(irqs); + break; + default: + ret = -EINVAL; + break; + } + +exit_err: + return ret; +} + +/* default table of all avaialable root fs divisors */ +static unsigned int s3c2412_iis_fs[] = { 256, 512, 384, 768, 0 }; + +int s3c2412_iis_calc_rate(struct s3c2412_rate_calc *info, + unsigned int *fstab, + unsigned int rate, struct clk *clk) +{ + unsigned long clkrate = clk_get_rate(clk); + unsigned int div; + unsigned int fsclk; + unsigned int actual; + unsigned int fs; + unsigned int fsdiv; + signed int deviation = 0; + unsigned int best_fs = 0; + unsigned int best_div = 0; + unsigned int best_rate = 0; + unsigned int best_deviation = INT_MAX; + + + if (fstab == NULL) + fstab = s3c2412_iis_fs; + + for (fs = 0;; fs++) { + fsdiv = s3c2412_iis_fs[fs]; + + if (fsdiv == 0) + break; + + fsclk = clkrate / fsdiv; + div = fsclk / rate; + + if ((fsclk % rate) > (rate / 2)) + div++; + + if (div <= 1) + continue; + + actual = clkrate / (fsdiv * div); + deviation = actual - rate; + + printk(KERN_DEBUG "%dfs: div %d => result %d, deviation %d\n", + fsdiv, div, actual, deviation); + + deviation = abs(deviation); + + if (deviation < best_deviation) { + best_fs = fsdiv; + best_div = div; + best_rate = actual; + best_deviation = deviation; + } + + if (deviation == 0) + break; + } + + printk(KERN_DEBUG "best: fs=%d, div=%d, rate=%d\n", + best_fs, best_div, best_rate); + + info->fs_div = best_fs; + info->clk_div = best_div; + + return 0; +} +EXPORT_SYMBOL_GPL(s3c2412_iis_calc_rate); + +/* + * Set S3C2412 Clock source + */ +static int s3c2412_i2s_set_sysclk(struct snd_soc_cpu_dai *cpu_dai, + int clk_id, unsigned int freq, int dir) +{ + u32 iismod = readl(s3c2412_i2s.regs + S3C2412_IISMOD); + + DBG("%s(%p, %d, %u, %d)\n", __func__, cpu_dai, clk_id, + freq, dir); + + switch (clk_id) { + case S3C2412_CLKSRC_PCLK: + iismod &= ~S3C2412_IISMOD_MASTER_MASK; + iismod |= S3C2412_IISMOD_MASTER_INTERNAL; + break; + case S3C2412_CLKSRC_I2SCLK: + iismod &= ~S3C2412_IISMOD_MASTER_MASK; + iismod |= S3C2412_IISMOD_MASTER_EXTERNAL; + break; + default: + return -EINVAL; + } + + writel(iismod, s3c2412_i2s.regs + S3C2412_IISMOD); + return 0; +} + +/* + * Set S3C2412 Clock dividers + */ +static int s3c2412_i2s_set_clkdiv(struct snd_soc_cpu_dai *cpu_dai, + int div_id, int div) +{ + struct s3c2412_i2s_info *i2s = &s3c2412_i2s; + u32 reg; + + DBG("%s(%p, %d, %d)\n", __func__, cpu_dai, div_id, div); + + switch (div_id) { + case S3C2412_DIV_BCLK: + reg = readl(i2s->regs + S3C2412_IISMOD); + reg &= ~S3C2412_IISMOD_BCLK_MASK; + writel(reg | div, i2s->regs + S3C2412_IISMOD); + + DBG("%s: MOD=%08x\n", __func__, readl(i2s->regs + S3C2412_IISMOD)); + break; + + case S3C2412_DIV_RCLK: + if (div > 3) { + /* convert value to bit field */ + + switch (div) { + case 256: + div = S3C2412_IISMOD_RCLK_256FS; + break; + + case 384: + div = S3C2412_IISMOD_RCLK_384FS; + break; + + case 512: + div = S3C2412_IISMOD_RCLK_512FS; + break; + + case 768: + div = S3C2412_IISMOD_RCLK_768FS; + break; + + default: + return -EINVAL; + } + } + + reg = readl(s3c2412_i2s.regs + S3C2412_IISMOD); + reg &= ~S3C2412_IISMOD_RCLK_MASK; + writel(reg | div, i2s->regs + S3C2412_IISMOD); + DBG("%s: MOD=%08x\n", __func__, readl(i2s->regs + S3C2412_IISMOD)); + break; + + case S3C2412_DIV_PRESCALER: + if (div >= 0) { + writel((div << 8) | S3C2412_IISPSR_PSREN, + i2s->regs + S3C2412_IISPSR); + } else { + writel(0x0, i2s->regs + S3C2412_IISPSR); + } + DBG("%s: PSR=%08x\n", __func__, readl(i2s->regs + S3C2412_IISPSR)); + break; + + default: + return -EINVAL; + } + + return 0; +} + +struct clk *s3c2412_get_iisclk(void) +{ + return s3c2412_i2s.iis_clk; +} +EXPORT_SYMBOL_GPL(s3c2412_get_iisclk); + + +static int s3c2412_i2s_probe(struct platform_device *pdev) +{ + DBG("Entered %s\n", __func__); + + s3c2412_i2s.dev = &pdev->dev; + + s3c2412_i2s.regs = ioremap(S3C2410_PA_IIS, 0x100); + if (s3c2412_i2s.regs == NULL) + return -ENXIO; + + s3c2412_i2s.iis_pclk = clk_get(&pdev->dev, "iis"); + if (s3c2412_i2s.iis_pclk == NULL) { + DBG("failed to get iis_clock\n"); + iounmap(s3c2412_i2s.regs); + return -ENODEV; + } + + s3c2412_i2s.iis_cclk = clk_get(&pdev->dev, "i2sclk"); + if (s3c2412_i2s.iis_cclk == NULL) { + DBG("failed to get i2sclk clock\n"); + iounmap(s3c2412_i2s.regs); + return -ENODEV; + } + + clk_set_parent(s3c2412_i2s.iis_cclk, clk_get(NULL, "mpll")); + + clk_enable(s3c2412_i2s.iis_pclk); + clk_enable(s3c2412_i2s.iis_cclk); + + s3c2412_i2s.iis_clk = s3c2412_i2s.iis_pclk; + + /* Configure the I2S pins in correct mode */ + s3c2410_gpio_cfgpin(S3C2410_GPE0, S3C2410_GPE0_I2SLRCK); + s3c2410_gpio_cfgpin(S3C2410_GPE1, S3C2410_GPE1_I2SSCLK); + s3c2410_gpio_cfgpin(S3C2410_GPE2, S3C2410_GPE2_CDCLK); + s3c2410_gpio_cfgpin(S3C2410_GPE3, S3C2410_GPE3_I2SSDI); + s3c2410_gpio_cfgpin(S3C2410_GPE4, S3C2410_GPE4_I2SSDO); + + s3c2412_snd_txctrl(0); + s3c2412_snd_rxctrl(0); + + return 0; +} + +#ifdef CONFIG_PM +static int s3c2412_i2s_suspend(struct platform_device *dev, + struct snd_soc_cpu_dai *dai) +{ + struct s3c2412_i2s_info *i2s = &s3c2412_i2s; + u32 iismod; + + if (dai->active) { + i2s->suspend_iismod = readl(i2s->regs + S3C2412_IISMOD); + i2s->suspend_iiscon = readl(i2s->regs + S3C2412_IISCON); + i2s->suspend_iispsr = readl(i2s->regs + S3C2412_IISPSR); + + /* some basic suspend checks */ + + iismod = readl(i2s->regs + S3C2412_IISMOD); + + if (iismod & S3C2412_IISCON_RXDMA_ACTIVE) + dev_warn(&dev->dev, "%s: RXDMA active?\n", __func__); + + if (iismod & S3C2412_IISCON_TXDMA_ACTIVE) + dev_warn(&dev->dev, "%s: TXDMA active?\n", __func__); + + if (iismod & S3C2412_IISCON_IIS_ACTIVE) + dev_warn(&dev->dev, "%s: IIS active\n", __func__); + } + + return 0; +} + +static int s3c2412_i2s_resume(struct platform_device *pdev, + struct snd_soc_cpu_dai *dai) +{ + struct s3c2412_i2s_info *i2s = &s3c2412_i2s; + + dev_info(&pdev->dev, "dai_active %d, IISMOD %08x, IISCON %08x\n", + dai->active, i2s->suspend_iismod, i2s->suspend_iiscon); + + if (dai->active) { + writel(i2s->suspend_iiscon, i2s->regs + S3C2412_IISCON); + writel(i2s->suspend_iismod, i2s->regs + S3C2412_IISMOD); + writel(i2s->suspend_iispsr, i2s->regs + S3C2412_IISPSR); + + writel(S3C2412_IISFIC_RXFLUSH | S3C2412_IISFIC_TXFLUSH, + i2s->regs + S3C2412_IISFIC); + + ndelay(250); + writel(0x0, i2s->regs + S3C2412_IISFIC); + + } + + return 0; +} +#else +#define s3c2412_i2s_suspend NULL +#define s3c2412_i2s_resume NULL +#endif /* CONFIG_PM */ + +#define S3C2412_I2S_RATES \ + (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000 | \ + SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ + SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) + +struct snd_soc_cpu_dai s3c2412_i2s_dai = { + .name = "s3c2412-i2s", + .id = 0, + .type = SND_SOC_DAI_I2S, + .probe = s3c2412_i2s_probe, + .suspend = s3c2412_i2s_suspend, + .resume = s3c2412_i2s_resume, + .playback = { + .channels_min = 2, + .channels_max = 2, + .rates = S3C2412_I2S_RATES, + .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .channels_min = 2, + .channels_max = 2, + .rates = S3C2412_I2S_RATES, + .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE, + }, + .ops = { + .trigger = s3c2412_i2s_trigger, + .hw_params = s3c2412_i2s_hw_params, + }, + .dai_ops = { + .set_fmt = s3c2412_i2s_set_fmt, + .set_clkdiv = s3c2412_i2s_set_clkdiv, + .set_sysclk = s3c2412_i2s_set_sysclk, + }, +}; +EXPORT_SYMBOL_GPL(s3c2412_i2s_dai); + +/* Module information */ +MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>"); +MODULE_DESCRIPTION("S3C2412 I2S SoC Interface"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/s3c24xx/s3c2412-i2s.h b/sound/soc/s3c24xx/s3c2412-i2s.h new file mode 100644 index 000000000000..27f48e1ffa86 --- /dev/null +++ b/sound/soc/s3c24xx/s3c2412-i2s.h @@ -0,0 +1,38 @@ +/* sound/soc/s3c24xx/s3c2412-i2s.c + * + * ALSA Soc Audio Layer - S3C2412 I2S driver + * + * Copyright (c) 2007 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * 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 __SND_SOC_S3C24XX_S3C2412_I2S_H +#define __SND_SOC_S3C24XX_S3C2412_I2S_H __FILE__ + +#define S3C2412_DIV_BCLK (1) +#define S3C2412_DIV_RCLK (2) +#define S3C2412_DIV_PRESCALER (3) + +#define S3C2412_CLKSRC_PCLK (0) +#define S3C2412_CLKSRC_I2SCLK (1) + +extern struct clk *s3c2412_get_iisclk(void); + +extern struct snd_soc_cpu_dai s3c2412_i2s_dai; + +struct s3c2412_rate_calc { + unsigned int clk_div; /* for prescaler */ + unsigned int fs_div; /* for root frame clock */ +}; + +extern int s3c2412_iis_calc_rate(struct s3c2412_rate_calc *info, + unsigned int *fstab, + unsigned int rate, struct clk *clk); + +#endif /* __SND_SOC_S3C24XX_S3C2412_I2S_H */ diff --git a/sound/soc/s3c24xx/s3c2443-ac97.c b/sound/soc/s3c24xx/s3c2443-ac97.c index 758a2637e7ac..1c1ddbf7f3c0 100644 --- a/sound/soc/s3c24xx/s3c2443-ac97.c +++ b/sound/soc/s3c24xx/s3c2443-ac97.c @@ -23,7 +23,6 @@ #include <linux/delay.h> #include <linux/clk.h> -#include <sound/driver.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/ac97_codec.h> @@ -253,7 +252,7 @@ static int s3c2443_ac97_probe(struct platform_device *pdev) ac_glbctrl |= S3C_AC97_GLBCTRL_TRANSFERDATAENABLE; writel(ac_glbctrl, s3c24xx_ac97.regs + S3C_AC97_GLBCTRL); - ret = request_irq(IRQ_S3C2443_AC97, s3c2443_ac97_irq, + ret = request_irq(IRQ_S3C244x_AC97, s3c2443_ac97_irq, IRQF_DISABLED, "AC97", NULL); if (ret < 0) { printk(KERN_ERR "s3c24xx-ac97: interrupt request failed.\n"); @@ -266,7 +265,7 @@ static int s3c2443_ac97_probe(struct platform_device *pdev) static void s3c2443_ac97_remove(struct platform_device *pdev) { - free_irq(IRQ_S3C2443_AC97, NULL); + free_irq(IRQ_S3C244x_AC97, NULL); clk_disable(s3c24xx_ac97.ac97_clk); clk_put(s3c24xx_ac97.ac97_clk); iounmap(s3c24xx_ac97.regs); diff --git a/sound/soc/s3c24xx/s3c24xx-ac97.h b/sound/soc/s3c24xx/s3c24xx-ac97.h index 2b835e8260fa..bf03e8ed16c3 100644 --- a/sound/soc/s3c24xx/s3c24xx-ac97.h +++ b/sound/soc/s3c24xx/s3c24xx-ac97.h @@ -20,6 +20,12 @@ #define AC_CMD_ADDR(x) (x << 16) #define AC_CMD_DATA(x) (x & 0xffff) +#ifdef CONFIG_CPU_S3C2440 +#define IRQ_S3C244x_AC97 IRQ_S3C2440_AC97 +#else +#define IRQ_S3C244x_AC97 IRQ_S3C2443_AC97 +#endif + extern struct snd_soc_cpu_dai s3c2443_ac97_dai[]; #endif /*S3C24XXAC97_H_*/ diff --git a/sound/soc/s3c24xx/s3c24xx-i2s.c b/sound/soc/s3c24xx/s3c24xx-i2s.c index cd89c4105fcd..0a3c630951be 100644 --- a/sound/soc/s3c24xx/s3c24xx-i2s.c +++ b/sound/soc/s3c24xx/s3c24xx-i2s.c @@ -24,7 +24,7 @@ #include <linux/device.h> #include <linux/delay.h> #include <linux/clk.h> -#include <sound/driver.h> +#include <linux/jiffies.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -33,13 +33,14 @@ #include <asm/hardware.h> #include <asm/io.h> -#include <asm/arch/regs-iis.h> #include <asm/arch/regs-gpio.h> #include <asm/arch/regs-clock.h> #include <asm/arch/audio.h> #include <asm/dma.h> #include <asm/arch/dma.h> +#include <asm/plat-s3c24xx/regs-iis.h> + #include "s3c24xx-pcm.h" #include "s3c24xx-i2s.h" @@ -75,6 +76,10 @@ static struct s3c24xx_pcm_dma_params s3c24xx_i2s_pcm_stereo_in = { struct s3c24xx_i2s_info { void __iomem *regs; struct clk *iis_clk; + u32 iiscon; + u32 iismod; + u32 iisfcon; + u32 iispsr; }; static struct s3c24xx_i2s_info s3c24xx_i2s; @@ -184,7 +189,7 @@ static int s3c24xx_snd_lrsync(void) if (iiscon & S3C2410_IISCON_LRINDEX) break; - if (timeout < jiffies) + if (time_after(jiffies, timeout)) return -ETIMEDOUT; } @@ -405,6 +410,38 @@ static int s3c24xx_i2s_probe(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM +int s3c24xx_i2s_suspend(struct platform_device *pdev, + struct snd_soc_cpu_dai *cpu_dai) +{ + s3c24xx_i2s.iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON); + s3c24xx_i2s.iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD); + s3c24xx_i2s.iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON); + s3c24xx_i2s.iispsr = readl(s3c24xx_i2s.regs + S3C2410_IISPSR); + + clk_disable(s3c24xx_i2s.iis_clk); + + return 0; +} + +int s3c24xx_i2s_resume(struct platform_device *pdev, + struct snd_soc_cpu_dai *cpu_dai) +{ + clk_enable(s3c24xx_i2s.iis_clk); + + writel(s3c24xx_i2s.iiscon, s3c24xx_i2s.regs + S3C2410_IISCON); + writel(s3c24xx_i2s.iismod, s3c24xx_i2s.regs + S3C2410_IISMOD); + writel(s3c24xx_i2s.iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON); + writel(s3c24xx_i2s.iispsr, s3c24xx_i2s.regs + S3C2410_IISPSR); + + return 0; +} +#else +#define s3c24xx_i2s_suspend NULL +#define s3c24xx_i2s_resume NULL +#endif + + #define S3C24XX_I2S_RATES \ (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000 | \ SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ @@ -415,6 +452,8 @@ struct snd_soc_cpu_dai s3c24xx_i2s_dai = { .id = 0, .type = SND_SOC_DAI_I2S, .probe = s3c24xx_i2s_probe, + .suspend = s3c24xx_i2s_suspend, + .resume = s3c24xx_i2s_resume, .playback = { .channels_min = 2, .channels_max = 2, diff --git a/sound/soc/s3c24xx/s3c24xx-pcm.c b/sound/soc/s3c24xx/s3c24xx-pcm.c index 4107a87d4de3..29a6c82f873a 100644 --- a/sound/soc/s3c24xx/s3c24xx-pcm.c +++ b/sound/soc/s3c24xx/s3c24xx-pcm.c @@ -24,7 +24,6 @@ #include <linux/slab.h> #include <linux/dma-mapping.h> -#include <sound/driver.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -49,7 +48,9 @@ static const struct snd_pcm_hardware s3c24xx_pcm_hardware = { .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_MMAP_VALID, + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_RESUME, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U8 | @@ -176,28 +177,6 @@ static int s3c24xx_pcm_hw_params(struct snd_pcm_substream *substream, } } - /* channel needs configuring for mem=>device, increment memory addr, - * sync to pclk, half-word transfers to the IIS-FIFO. */ - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - s3c2410_dma_devconfig(prtd->params->channel, - S3C2410_DMASRC_MEM, S3C2410_DISRCC_INC | - S3C2410_DISRCC_APB, prtd->params->dma_addr); - - s3c2410_dma_config(prtd->params->channel, - prtd->params->dma_size, - S3C2410_DCON_SYNC_PCLK | - S3C2410_DCON_HANDSHAKE); - } else { - s3c2410_dma_config(prtd->params->channel, - prtd->params->dma_size, - S3C2410_DCON_HANDSHAKE | - S3C2410_DCON_SYNC_PCLK); - - s3c2410_dma_devconfig(prtd->params->channel, - S3C2410_DMASRC_HW, 0x3, - prtd->params->dma_addr); - } - s3c2410_dma_set_buffdone_fn(prtd->params->channel, s3c24xx_audio_buffdone); @@ -246,6 +225,28 @@ static int s3c24xx_pcm_prepare(struct snd_pcm_substream *substream) if (!prtd->params) return 0; + /* channel needs configuring for mem=>device, increment memory addr, + * sync to pclk, half-word transfers to the IIS-FIFO. */ + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + s3c2410_dma_devconfig(prtd->params->channel, + S3C2410_DMASRC_MEM, S3C2410_DISRCC_INC | + S3C2410_DISRCC_APB, prtd->params->dma_addr); + + s3c2410_dma_config(prtd->params->channel, + prtd->params->dma_size, + S3C2410_DCON_SYNC_PCLK | + S3C2410_DCON_HANDSHAKE); + } else { + s3c2410_dma_config(prtd->params->channel, + prtd->params->dma_size, + S3C2410_DCON_HANDSHAKE | + S3C2410_DCON_SYNC_PCLK); + + s3c2410_dma_devconfig(prtd->params->channel, + S3C2410_DMASRC_HW, 0x3, + prtd->params->dma_addr); + } + /* flush the DMA channel */ s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_FLUSH); prtd->dma_loaded = 0; diff --git a/sound/soc/s3c24xx/smdk2443_wm9710.c b/sound/soc/s3c24xx/smdk2443_wm9710.c index d46cd811ceb3..b4a56302b9ab 100644 --- a/sound/soc/s3c24xx/smdk2443_wm9710.c +++ b/sound/soc/s3c24xx/smdk2443_wm9710.c @@ -17,7 +17,6 @@ #include <linux/module.h> #include <linux/device.h> -#include <sound/driver.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/soc.h> |
