#include <plat/regs-s3c2412-iis.h>
-#include <plat/audio.h>
#include <mach/dma.h>
#include "s3c-i2s-v2.h"
+#include "s3c24xx-pcm.h"
+
+#undef S3C_IIS_V2_SUPPORTED
+
+#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
+#define S3C_IIS_V2_SUPPORTED
+#endif
+
+#ifdef CONFIG_PLAT_S3C64XX
+#define S3C_IIS_V2_SUPPORTED
+#endif
+
+#ifndef S3C_IIS_V2_SUPPORTED
+#error Unsupported CPU model
+#endif
#define S3C2412_I2S_DEBUG_CON 0
/* Turn on or off the transmission path. */
-void s3c2412_snd_txctrl(struct s3c_i2sv2_info *i2s, int on)
+static void s3c2412_snd_txctrl(struct s3c_i2sv2_info *i2s, int on)
{
void __iomem *regs = i2s->regs;
u32 fic, con, mod;
break;
default:
- dev_err(i2s->dev, "TXEN: Invalid MODE in IISMOD\n");
+ dev_err(i2s->dev, "TXEN: Invalid MODE %x in IISMOD\n",
+ mod & S3C2412_IISMOD_MODE_MASK);
+ break;
}
writel(con, regs + S3C2412_IISCON);
break;
default:
- dev_err(i2s->dev, "TXDIS: Invalid MODE in IISMOD\n");
+ dev_err(i2s->dev, "TXDIS: Invalid MODE %x in IISMOD\n",
+ mod & S3C2412_IISMOD_MODE_MASK);
+ break;
}
writel(mod, regs + S3C2412_IISMOD);
dbg_showcon(__func__, con);
pr_debug("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic);
}
-EXPORT_SYMBOL_GPL(s3c2412_snd_txctrl);
-void s3c2412_snd_rxctrl(struct s3c_i2sv2_info *i2s, int on)
+static void s3c2412_snd_rxctrl(struct s3c_i2sv2_info *i2s, int on)
{
void __iomem *regs = i2s->regs;
u32 fic, con, mod;
break;
default:
- dev_err(i2s->dev, "RXEN: Invalid MODE in IISMOD\n");
+ dev_err(i2s->dev, "RXEN: Invalid MODE %x in IISMOD\n",
+ mod & S3C2412_IISMOD_MODE_MASK);
}
writel(mod, regs + S3C2412_IISMOD);
break;
default:
- dev_err(i2s->dev, "RXEN: Invalid MODE in IISMOD\n");
+ dev_err(i2s->dev, "RXDIS: Invalid MODE %x in IISMOD\n",
+ mod & S3C2412_IISMOD_MODE_MASK);
}
writel(con, regs + S3C2412_IISCON);
fic = readl(regs + S3C2412_IISFIC);
pr_debug("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic);
}
-EXPORT_SYMBOL_GPL(s3c2412_snd_rxctrl);
+
+#define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t)
/*
* Wait for the LR signal to allow synchronisation to the L/R clock
static int s3c2412_snd_lrsync(struct s3c_i2sv2_info *i2s)
{
u32 iiscon;
- unsigned long timeout = jiffies + msecs_to_jiffies(5);
+ unsigned long loops = msecs_to_loops(5);
pr_debug("Entered %s\n", __func__);
- while (1) {
+ while (--loops) {
iiscon = readl(i2s->regs + S3C2412_IISCON);
if (iiscon & S3C2412_IISCON_LRINDEX)
break;
- if (timeout < jiffies) {
- printk(KERN_ERR "%s: timeout\n", __func__);
- return -ETIMEDOUT;
- }
+ cpu_relax();
+ }
+
+ if (!loops) {
+ printk(KERN_ERR "%s: timeout\n", __func__);
+ return -ETIMEDOUT;
}
return 0;
*/
#define IISMOD_MASTER_MASK (1 << 11)
#define IISMOD_SLAVE (1 << 11)
-#define IISMOD_MASTER (0x0)
+#define IISMOD_MASTER (0 << 11)
#endif
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
iismod |= IISMOD_MASTER;
break;
default:
- pr_debug("unknwon master/slave format\n");
+ pr_err("unknwon master/slave format\n");
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_RIGHT_J:
+ iismod |= S3C2412_IISMOD_LR_RLOW;
iismod |= S3C2412_IISMOD_SDF_MSB;
break;
case SND_SOC_DAIFMT_LEFT_J:
+ iismod |= S3C2412_IISMOD_LR_RLOW;
iismod |= S3C2412_IISMOD_SDF_LSB;
break;
case SND_SOC_DAIFMT_I2S:
+ iismod &= ~S3C2412_IISMOD_LR_RLOW;
iismod |= S3C2412_IISMOD_SDF_IIS;
break;
default:
- pr_debug("Unknown data format\n");
+ pr_err("Unknown data format\n");
return -EINVAL;
}
iismod = readl(i2s->regs + S3C2412_IISMOD);
pr_debug("%s: r: IISMOD: %x\n", __func__, iismod);
+#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S8:
iismod |= S3C2412_IISMOD_8BIT;
iismod &= ~S3C2412_IISMOD_8BIT;
break;
}
+#endif
+
+#ifdef CONFIG_PLAT_S3C64XX
+ iismod &= ~(S3C64XX_IISMOD_BLC_MASK | S3C2412_IISMOD_BCLK_MASK);
+ /* Sample size */
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S8:
+ /* 8 bit sample, 16fs BCLK */
+ iismod |= (S3C64XX_IISMOD_BLC_8BIT | S3C2412_IISMOD_BCLK_16FS);
+ break;
+ case SNDRV_PCM_FORMAT_S16_LE:
+ /* 16 bit sample, 32fs BCLK */
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ /* 24 bit sample, 48fs BCLK */
+ iismod |= (S3C64XX_IISMOD_BLC_24BIT | S3C2412_IISMOD_BCLK_48FS);
+ break;
+ }
+#endif
writel(iismod, i2s->regs + S3C2412_IISMOD);
pr_debug("%s: w: IISMOD: %x\n", __func__, iismod);
int capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
unsigned long irqs;
int ret = 0;
+ int channel = ((struct s3c24xx_pcm_dma_params *)
+ rtd->dai->cpu_dai->dma_data)->channel;
pr_debug("Entered %s\n", __func__);
s3c2412_snd_txctrl(i2s, 1);
local_irq_restore(irqs);
+
+ /*
+ * Load the next buffer to DMA to meet the reqirement
+ * of the auto reload mechanism of S3C24XX.
+ * This call won't bother S3C64XX.
+ */
+ s3c2410_dma_ctrl(channel, S3C2410_DMAOP_STARTED);
+
break;
case SNDRV_PCM_TRIGGER_STOP:
switch (div_id) {
case S3C_I2SV2_DIV_BCLK:
+ if (div > 3) {
+ /* convert value to bit field */
+
+ switch (div) {
+ case 16:
+ div = S3C2412_IISMOD_BCLK_16FS;
+ break;
+
+ case 32:
+ div = S3C2412_IISMOD_BCLK_32FS;
+ break;
+
+ case 24:
+ div = S3C2412_IISMOD_BCLK_24FS;
+ break;
+
+ case 48:
+ div = S3C2412_IISMOD_BCLK_48FS;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+ }
+
reg = readl(i2s->regs + S3C2412_IISMOD);
reg &= ~S3C2412_IISMOD_BCLK_MASK;
writel(reg | div, i2s->regs + S3C2412_IISMOD);
/* default table of all avaialable root fs divisors */
static unsigned int iis_fs_tab[] = { 256, 512, 384, 768 };
-int s3c2412_iis_calc_rate(struct s3c_i2sv2_rate_calc *info,
- unsigned int *fstab,
- unsigned int rate, struct clk *clk)
+int s3c_i2sv2_iis_calc_rate(struct s3c_i2sv2_rate_calc *info,
+ unsigned int *fstab,
+ unsigned int rate, struct clk *clk)
{
unsigned long clkrate = clk_get_rate(clk);
unsigned int div;
unsigned int best_rate = 0;
unsigned int best_deviation = INT_MAX;
+ pr_debug("Input clock rate %ldHz\n", clkrate);
+
if (fstab == NULL)
fstab = iis_fs_tab;
actual = clkrate / (fsdiv * div);
deviation = actual - rate;
- printk(KERN_DEBUG "%dfs: div %d => result %d, deviation %d\n",
+ printk(KERN_DEBUG "%ufs: div %u => result %u, deviation %d\n",
fsdiv, div, actual, deviation);
deviation = abs(deviation);
break;
}
- printk(KERN_DEBUG "best: fs=%d, div=%d, rate=%d\n",
+ printk(KERN_DEBUG "best: fs=%u, div=%u, rate=%u\n",
best_fs, best_div, best_rate);
info->fs_div = best_fs;
return 0;
}
-EXPORT_SYMBOL_GPL(s3c2412_iis_calc_rate);
+EXPORT_SYMBOL_GPL(s3c_i2sv2_iis_calc_rate);
int s3c_i2sv2_probe(struct platform_device *pdev,
struct snd_soc_dai *dai,
unsigned long base)
{
struct device *dev = &pdev->dev;
+ unsigned int iismod;
i2s->dev = dev;
/* record our i2s structure for later use in the callbacks */
dai->private_data = i2s;
+ if (!base) {
+ struct resource *res = platform_get_resource(pdev,
+ IORESOURCE_MEM,
+ 0);
+ if (!res) {
+ dev_err(dev, "Unable to get register resource\n");
+ return -ENXIO;
+ }
+
+ if (!request_mem_region(res->start, resource_size(res),
+ "s3c64xx-i2s-v4")) {
+ dev_err(dev, "Unable to request register region\n");
+ return -EBUSY;
+ }
+
+ base = res->start;
+ }
+
i2s->regs = ioremap(base, 0x100);
if (i2s->regs == NULL) {
dev_err(dev, "cannot ioremap registers\n");
}
i2s->iis_pclk = clk_get(dev, "iis");
- if (i2s->iis_pclk == NULL) {
- pr_debug("failed to get iis_clock\n");
+ if (IS_ERR(i2s->iis_pclk)) {
+ dev_err(dev, "failed to get iis_clock\n");
iounmap(i2s->regs);
return -ENOENT;
}
clk_enable(i2s->iis_pclk);
+ /* Mark ourselves as in TXRX mode so we can run through our cleanup
+ * process without warnings. */
+ iismod = readl(i2s->regs + S3C2412_IISMOD);
+ iismod |= S3C2412_IISMOD_MODE_TXRX;
+ writel(iismod, i2s->regs + S3C2412_IISMOD);
s3c2412_snd_txctrl(i2s, 0);
s3c2412_snd_rxctrl(i2s, 0);
return 0;
}
-
EXPORT_SYMBOL_GPL(s3c_i2sv2_probe);
#ifdef CONFIG_PM
int s3c_i2sv2_register_dai(struct snd_soc_dai *dai)
{
- dai->ops.trigger = s3c2412_i2s_trigger;
- dai->ops.hw_params = s3c2412_i2s_hw_params;
- dai->ops.set_fmt = s3c2412_i2s_set_fmt;
- dai->ops.set_clkdiv = s3c2412_i2s_set_clkdiv;
+ struct snd_soc_dai_ops *ops = dai->ops;
+
+ ops->trigger = s3c2412_i2s_trigger;
+ ops->hw_params = s3c2412_i2s_hw_params;
+ ops->set_fmt = s3c2412_i2s_set_fmt;
+ ops->set_clkdiv = s3c2412_i2s_set_clkdiv;
dai->suspend = s3c2412_i2s_suspend;
dai->resume = s3c2412_i2s_resume;
return snd_soc_register_dai(dai);
}
-
EXPORT_SYMBOL_GPL(s3c_i2sv2_register_dai);
+
+MODULE_LICENSE("GPL");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff