3 // ALSA Soc Audio Layer - I2S core for newer Samsung SoCs.
21 #include "regs-i2s-v2.h"
22 #include "s3c-i2s-v2.h"
61 static void s3c2412_snd_txctrl(struct s3c_i2sv2_info *i2s, int on)  in s3c2412_snd_txctrl()  argument
63 	void __iomem *regs = i2s->regs;  in s3c2412_snd_txctrl()
91 			dev_err(i2s->dev, "TXEN: Invalid MODE %x in IISMOD\n",  in s3c2412_snd_txctrl()
120 			dev_err(i2s->dev, "TXDIS: Invalid MODE %x in IISMOD\n",  in s3c2412_snd_txctrl()
134 static void s3c2412_snd_rxctrl(struct s3c_i2sv2_info *i2s, int on)  in s3c2412_snd_rxctrl()  argument
136 	void __iomem *regs = i2s->regs;  in s3c2412_snd_rxctrl()
164 			dev_err(i2s->dev, "RXEN: Invalid MODE %x in IISMOD\n",  in s3c2412_snd_rxctrl()
189 			dev_err(i2s->dev, "RXDIS: Invalid MODE %x in IISMOD\n",  in s3c2412_snd_rxctrl()
207 static int s3c2412_snd_lrsync(struct s3c_i2sv2_info *i2s)  in s3c2412_snd_lrsync()  argument
215 		iiscon = readl(i2s->regs + S3C2412_IISCON);  in s3c2412_snd_lrsync()
231  * Set S3C2412 I2S DAI format
236 	struct s3c_i2sv2_info *i2s = to_info(cpu_dai);  in s3c2412_i2s_set_fmt()  local
241 	iismod = readl(i2s->regs + S3C2412_IISMOD);  in s3c2412_i2s_set_fmt()
246 		i2s->master = 0;  in s3c2412_i2s_set_fmt()
250 		i2s->master = 1;  in s3c2412_i2s_set_fmt()
278 	writel(iismod, i2s->regs + S3C2412_IISMOD);  in s3c2412_i2s_set_fmt()
287 	struct s3c_i2sv2_info *i2s = to_info(dai);  in s3c_i2sv2_hw_params()  local
294 		dma_data = i2s->dma_playback;  in s3c_i2sv2_hw_params()
296 		dma_data = i2s->dma_capture;  in s3c_i2sv2_hw_params()
301 	iismod = readl(i2s->regs + S3C2412_IISMOD);  in s3c_i2sv2_hw_params()
317 	writel(iismod, i2s->regs + S3C2412_IISMOD);  in s3c_i2sv2_hw_params()
326 	struct s3c_i2sv2_info *i2s = to_info(cpu_dai);  in s3c_i2sv2_set_sysclk()  local
327 	u32 iismod = readl(i2s->regs + S3C2412_IISMOD);  in s3c_i2sv2_set_sysclk()
343 		if (!(i2s->feature & S3C_FEATURE_CDCLKCON))  in s3c_i2sv2_set_sysclk()
362 	writel(iismod, i2s->regs + S3C2412_IISMOD);  in s3c_i2sv2_set_sysclk()
372 	struct s3c_i2sv2_info *i2s = to_info(asoc_rtd_to_cpu(rtd, 0));  in s3c2412_i2s_trigger()  local
384 		       i2s->regs + S3C2412_IISFIC);  in s3c2412_i2s_trigger()
387 		writel(0x0, i2s->regs + S3C2412_IISFIC);  in s3c2412_i2s_trigger()
393 		if (!i2s->master) {  in s3c2412_i2s_trigger()
394 			ret = s3c2412_snd_lrsync(i2s);  in s3c2412_i2s_trigger()
402 			s3c2412_snd_rxctrl(i2s, 1);  in s3c2412_i2s_trigger()
404 			s3c2412_snd_txctrl(i2s, 1);  in s3c2412_i2s_trigger()
416 			s3c2412_snd_rxctrl(i2s, 0);  in s3c2412_i2s_trigger()
418 			s3c2412_snd_txctrl(i2s, 0);  in s3c2412_i2s_trigger()
437 	struct s3c_i2sv2_info *i2s = to_info(cpu_dai);  in s3c2412_i2s_set_clkdiv()  local
465 		reg = readl(i2s->regs + S3C2412_IISMOD);  in s3c2412_i2s_set_clkdiv()
467 		writel(reg | div, i2s->regs + S3C2412_IISMOD);  in s3c2412_i2s_set_clkdiv()
469 		pr_debug("%s: MOD=%08x\n", __func__, readl(i2s->regs + S3C2412_IISMOD));  in s3c2412_i2s_set_clkdiv()
494 		reg = readl(i2s->regs + S3C2412_IISMOD);  in s3c2412_i2s_set_clkdiv()
496 		writel(reg | div, i2s->regs + S3C2412_IISMOD);  in s3c2412_i2s_set_clkdiv()
497 		pr_debug("%s: MOD=%08x\n", __func__, readl(i2s->regs + S3C2412_IISMOD));  in s3c2412_i2s_set_clkdiv()
503 			       i2s->regs + S3C2412_IISPSR);  in s3c2412_i2s_set_clkdiv()
505 			writel(0x0, i2s->regs + S3C2412_IISPSR);  in s3c2412_i2s_set_clkdiv()
507 		pr_debug("%s: PSR=%08x\n", __func__, readl(i2s->regs + S3C2412_IISPSR));  in s3c2412_i2s_set_clkdiv()
520 	struct s3c_i2sv2_info *i2s = to_info(dai);  in s3c2412_i2s_delay()  local
521 	u32 reg = readl(i2s->regs + S3C2412_IISFIC);  in s3c2412_i2s_delay()
534 	struct s3c_i2sv2_info *i2s = to_info(cpu_dai);  in s3c_i2sv2_get_clock()  local
535 	u32 iismod = readl(i2s->regs + S3C2412_IISMOD);  in s3c_i2sv2_get_clock()
538 		return i2s->iis_cclk;  in s3c_i2sv2_get_clock()
540 		return i2s->iis_pclk;  in s3c_i2sv2_get_clock()
610 		    struct s3c_i2sv2_info *i2s)  in s3c_i2sv2_probe()  argument
615 	i2s->dev = dev;  in s3c_i2sv2_probe()
617 	/* record our i2s structure for later use in the callbacks */  in s3c_i2sv2_probe()
618 	snd_soc_dai_set_drvdata(dai, i2s);  in s3c_i2sv2_probe()
620 	i2s->iis_pclk = clk_get(dev, "iis");  in s3c_i2sv2_probe()
621 	if (IS_ERR(i2s->iis_pclk)) {  in s3c_i2sv2_probe()
626 	clk_prepare_enable(i2s->iis_pclk);  in s3c_i2sv2_probe()
630 	iismod = readl(i2s->regs + S3C2412_IISMOD);  in s3c_i2sv2_probe()
632 	writel(iismod, i2s->regs + S3C2412_IISMOD);  in s3c_i2sv2_probe()
633 	s3c2412_snd_txctrl(i2s, 0);  in s3c_i2sv2_probe()
634 	s3c2412_snd_rxctrl(i2s, 0);  in s3c_i2sv2_probe()
641 		      struct s3c_i2sv2_info *i2s)  in s3c_i2sv2_cleanup()  argument
643 	clk_disable_unprepare(i2s->iis_pclk);  in s3c_i2sv2_cleanup()
644 	clk_put(i2s->iis_pclk);  in s3c_i2sv2_cleanup()
645 	i2s->iis_pclk = NULL;  in s3c_i2sv2_cleanup()