Lines Matching +full:i2s +full:- +full:rx

1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * pxa2xx-i2s.c  --  ALSA Soc Audio Layer
21 #include <sound/pxa2xx-lib.h>
24 #include <linux/platform_data/asoc-pxa.h>
26 #include "pxa2xx-i2s.h"
29  * I2S Controller Register and Bit Definitions
32 #define SACR1		(0x0004)	/* Serial Audio I 2 S/MSB-Justified Control Register */
33 #define SASR0		(0x000C)	/* Serial Audio I 2 S/MSB-Justified Interface and FIFO Status Register */
37 #define SADR		(0x0080)	/* Serial Audio Data Register (TX and RX FIFO access Register). */
39 #define SACR0_RFTH(x)	((x) << 12)	/* Rx FIFO Interrupt or DMA Trigger Threshold */
43 #define SACR0_RST	(1 << 3)	/* FIFO, i2s Register Reset */
45 #define SACR0_ENB	(1 << 0)	/* Enable I2S Link */
52 #define SASR0_ROR	(1 << 6)	/* Rx FIFO Overrun */
54 #define SASR0_RFS	(1 << 4)	/* Rx FIFO Service Request */
56 #define SASR0_BSY	(1 << 2)	/* I2S Busy */
57 #define SASR0_RNE	(1 << 1)	/* Rx FIFO Not Empty */
60 #define SAICR_ROR	(1 << 6)	/* Clear Rx FIFO Overrun Interrupt */
63 #define SAIMR_ROR	(1 << 6)	/* Enable Rx FIFO Overrun Condition Interrupt */
65 #define SAIMR_RFS	(1 << 4)	/* Enable Rx FIFO Service Interrupt */
89 	.chan_name	= "rx",
108 /* wait for I2S controller to be ready */
113 	/* flush the Rx FIFO */  in pxa_i2s_wait()
149 		return -ENODEV;  in pxa2xx_i2s_set_dai_sysclk()
161 		return -EINVAL;  in pxa2xx_i2s_hw_params()
166 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)  in pxa2xx_i2s_hw_params()
182 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)  in pxa2xx_i2s_hw_params()
221 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)  in pxa2xx_i2s_trigger()
234 		ret = -EINVAL;  in pxa2xx_i2s_trigger()
243 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {  in pxa2xx_i2s_shutdown()
297 	clk_i2s = clk_get(dai->dev, "I2SCLK");  in pxa2xx_i2s_probe()
305 	 * I2S controller registers.  in pxa2xx_i2s_probe()
323 	clk_i2s = ERR_PTR(-ENOENT);  in pxa2xx_i2s_remove()
358 	.name			= "pxa-i2s",
379 	pxa2xx_i2s_pcm_stereo_out.addr = res->start + SADR;  in pxa2xx_i2s_drv_probe()
380 	pxa2xx_i2s_pcm_stereo_in.addr = res->start + SADR;  in pxa2xx_i2s_drv_probe()
382 	return devm_snd_soc_register_component(&pdev->dev, &pxa_i2s_component,  in pxa2xx_i2s_drv_probe()
390 		.name = "pxa2xx-i2s",
396 	clk_i2s = ERR_PTR(-ENOENT);  in pxa2xx_i2s_init()
410 MODULE_DESCRIPTION("pxa2xx I2S SoC Interface");
412 MODULE_ALIAS("platform:pxa2xx-i2s");