#include "s3c-i2s-v2.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
static inline struct s3c_i2sv2_info *to_info(struct snd_soc_dai *cpu_dai)
/* 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);
/*
* Wait for the LR signal to allow synchronisation to the L/R clock
*/
#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;
}
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 &= ~0x606;
+ /* Sample size */
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S8:
+ /* 8 bit sample, 16fs BCLK */
+ iismod |= 0x2004;
+ 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 |= 0x4002;
+ break;
+ }
+#endif
writel(iismod, i2s->regs + S3C2412_IISMOD);
pr_debug("%s: w: IISMOD: %x\n", __func__, iismod);
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;
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");
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