[linux.git] / sound / arm / aaci.h

/*
 *  linux/sound/arm/aaci.c - ARM PrimeCell AACI PL041 driver
 *
 *  Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved.
 *
 * 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.
 */
#ifndef AACI_H
#define AACI_H

/*
 * Control and status register offsets
 *  P39.
 */
#define AACI_CSCH1	0x000
#define AACI_CSCH2	0x014
#define AACI_CSCH3	0x028
#define AACI_CSCH4	0x03c

#define AACI_RXCR	0x000	/* 29 bits Control Rx FIFO */
#define AACI_TXCR	0x004	/* 17 bits Control Tx FIFO */
#define AACI_SR		0x008	/* 12 bits Status */
#define AACI_ISR	0x00c	/* 7 bits  Int Status */
#define AACI_IE 	0x010	/* 7 bits  Int Enable */

/*
 * Other registers
 */
#define AACI_SL1RX	0x050
#define AACI_SL1TX	0x054
#define AACI_SL2RX	0x058
#define AACI_SL2TX	0x05c
#define AACI_SL12RX	0x060
#define AACI_SL12TX	0x064
#define AACI_SLFR	0x068	/* slot flags */
#define AACI_SLISTAT	0x06c	/* slot interrupt status */
#define AACI_SLIEN	0x070	/* slot interrupt enable */
#define AACI_INTCLR	0x074	/* interrupt clear */
#define AACI_MAINCR	0x078	/* main control */
#define AACI_RESET	0x07c	/* reset control */
#define AACI_SYNC	0x080	/* sync control */
#define AACI_ALLINTS	0x084	/* all fifo interrupt status */
#define AACI_MAINFR	0x088	/* main flag register */
#define AACI_DR1	0x090	/* data read/written fifo 1 */
#define AACI_DR2	0x0b0	/* data read/written fifo 2 */
#define AACI_DR3	0x0d0	/* data read/written fifo 3 */
#define AACI_DR4	0x0f0	/* data read/written fifo 4 */

/*
 * TX/RX fifo control register (CR). P48
 */
#define CR_FEN		(1 << 16)	/* fifo enable */
#define CR_COMPACT	(1 << 15)	/* compact mode */
#define CR_SZ16		(0 << 13)	/* 16 bits */
#define CR_SZ18		(1 << 13)	/* 18 bits */
#define CR_SZ20		(2 << 13)	/* 20 bits */
#define CR_SZ12		(3 << 13)	/* 12 bits */
#define CR_SL12		(1 << 12)
#define CR_SL11		(1 << 11)
#define CR_SL10		(1 << 10)
#define CR_SL9		(1 << 9)
#define CR_SL8		(1 << 8)
#define CR_SL7		(1 << 7)
#define CR_SL6		(1 << 6)
#define CR_SL5		(1 << 5)
#define CR_SL4		(1 << 4)
#define CR_SL3		(1 << 3)
#define CR_SL2		(1 << 2)
#define CR_SL1		(1 << 1)
#define CR_EN		(1 << 0)	/* transmit enable */

/*
 * status register bits. P49
 */
#define SR_RXTOFE	(1 << 11)	/* rx timeout fifo empty */
#define SR_TXTO		(1 << 10)	/* rx timeout fifo nonempty */
#define SR_TXU		(1 << 9)	/* tx underrun */
#define SR_RXO		(1 << 8)	/* rx overrun */
#define SR_TXB		(1 << 7)	/* tx busy */
#define SR_RXB		(1 << 6)	/* rx busy */
#define SR_TXFF		(1 << 5)	/* tx fifo full */
#define SR_RXFF		(1 << 4)	/* rx fifo full */
#define SR_TXHE		(1 << 3)	/* tx fifo half empty */
#define SR_RXHF		(1 << 2)	/* rx fifo half full */
#define SR_TXFE		(1 << 1)	/* tx fifo empty */
#define SR_RXFE		(1 << 0)	/* rx fifo empty */

/*
 * interrupt status register bits.
 */
#define ISR_RXTOFEINTR	(1 << 6)	/* rx fifo empty */
#define ISR_URINTR	(1 << 5)	/* tx underflow */
#define ISR_ORINTR	(1 << 4)	/* rx overflow */
#define ISR_RXINTR	(1 << 3)	/* rx fifo */
#define ISR_TXINTR	(1 << 2)	/* tx fifo intr */
#define ISR_RXTOINTR	(1 << 1)	/* tx timeout */
#define ISR_TXCINTR	(1 << 0)	/* tx complete */

/*
 * interrupt enable register bits.
 */
#define IE_RXTOIE	(1 << 6)
#define IE_URIE		(1 << 5)
#define IE_ORIE		(1 << 4)
#define IE_RXIE		(1 << 3)
#define IE_TXIE		(1 << 2)
#define IE_RXTIE	(1 << 1)
#define IE_TXCIE	(1 << 0)

/*
 * interrupt status. P51
 */
#define ISR_RXTOFE	(1 << 6)	/* rx timeout fifo empty */
#define ISR_UR		(1 << 5)	/* tx fifo underrun */
#define ISR_OR		(1 << 4)	/* rx fifo overrun */
#define ISR_RX		(1 << 3)	/* rx interrupt status */
#define ISR_TX		(1 << 2)	/* tx interrupt status */
#define ISR_RXTO	(1 << 1)	/* rx timeout */
#define ISR_TXC		(1 << 0)	/* tx complete */

/*
 * interrupt enable. P52
 */
#define IE_RXTOFE	(1 << 6)	/* rx timeout fifo empty */
#define IE_UR		(1 << 5)	/* tx fifo underrun */
#define IE_OR		(1 << 4)	/* rx fifo overrun */
#define IE_RX		(1 << 3)	/* rx interrupt status */
#define IE_TX		(1 << 2)	/* tx interrupt status */
#define IE_RXTO		(1 << 1)	/* rx timeout */
#define IE_TXC		(1 << 0)	/* tx complete */

/*
 * slot flag register bits. P56
 */
#define SLFR_RWIS	(1 << 13)	/* raw wake-up interrupt status */
#define SLFR_RGPIOINTR	(1 << 12)	/* raw gpio interrupt */
#define SLFR_12TXE	(1 << 11)	/* slot 12 tx empty */
#define SLFR_12RXV	(1 << 10)	/* slot 12 rx valid */
#define SLFR_2TXE	(1 << 9)	/* slot 2 tx empty */
#define SLFR_2RXV	(1 << 8)	/* slot 2 rx valid */
#define SLFR_1TXE	(1 << 7)	/* slot 1 tx empty */
#define SLFR_1RXV	(1 << 6)	/* slot 1 rx valid */
#define SLFR_12TXB	(1 << 5)	/* slot 12 tx busy */
#define SLFR_12RXB	(1 << 4)	/* slot 12 rx busy */
#define SLFR_2TXB	(1 << 3)	/* slot 2 tx busy */
#define SLFR_2RXB	(1 << 2)	/* slot 2 rx busy */
#define SLFR_1TXB	(1 << 1)	/* slot 1 tx busy */
#define SLFR_1RXB	(1 << 0)	/* slot 1 rx busy */

/*
 * Interrupt clear register.
 */
#define ICLR_RXTOFEC4	(1 << 12)
#define ICLR_RXTOFEC3	(1 << 11)
#define ICLR_RXTOFEC2	(1 << 10)
#define ICLR_RXTOFEC1	(1 << 9)
#define ICLR_TXUEC4	(1 << 8)
#define ICLR_TXUEC3	(1 << 7)
#define ICLR_TXUEC2	(1 << 6)
#define ICLR_TXUEC1	(1 << 5)
#define ICLR_RXOEC4	(1 << 4)
#define ICLR_RXOEC3	(1 << 3)
#define ICLR_RXOEC2	(1 << 2)
#define ICLR_RXOEC1	(1 << 1)
#define ICLR_WISC	(1 << 0)

/*
 * Main control register bits. P62
 */
#define MAINCR_SCRA(x)	((x) << 10)	/* secondary codec reg access */
#define MAINCR_DMAEN	(1 << 9)	/* dma enable */
#define MAINCR_SL12TXEN	(1 << 8)	/* slot 12 transmit enable */
#define MAINCR_SL12RXEN	(1 << 7)	/* slot 12 receive enable */
#define MAINCR_SL2TXEN	(1 << 6)	/* slot 2 transmit enable */
#define MAINCR_SL2RXEN	(1 << 5)	/* slot 2 receive enable */
#define MAINCR_SL1TXEN	(1 << 4)	/* slot 1 transmit enable */
#define MAINCR_SL1RXEN	(1 << 3)	/* slot 1 receive enable */
#define MAINCR_LPM	(1 << 2)	/* low power mode */
#define MAINCR_LOOPBK	(1 << 1)	/* loopback */
#define MAINCR_IE	(1 << 0)	/* aaci interface enable */

/*
 * Reset register bits. P65
 */
#define RESET_NRST	(1 << 0)

/*
 * Sync register bits. P65
 */
#define SYNC_FORCE	(1 << 0)

/*
 * Main flag register bits. P66
 */
#define MAINFR_TXB	(1 << 1)	/* transmit busy */
#define MAINFR_RXB	(1 << 0)	/* receive busy */


struct aaci_runtime {
	void			__iomem *base;
	void			__iomem *fifo;
	spinlock_t		lock;

	struct ac97_pcm		*pcm;
	int			pcm_open;

	u32			cr;
	struct snd_pcm_substream	*substream;

	unsigned int		period;	/* byte size of a "period" */

	/*
	 * PIO support
	 */
	void			*start;
	void			*end;
	void			*ptr;
	int			bytes;
	unsigned int		fifo_bytes;
};

struct aaci {
	struct amba_device	*dev;
	struct snd_card		*card;
	void			__iomem *base;
	unsigned int		fifo_depth;
	unsigned int		users;
	struct mutex		irq_lock;

	/* AC'97 */
	struct mutex		ac97_sem;
	struct snd_ac97_bus	*ac97_bus;
	struct snd_ac97		*ac97;

	u32			maincr;

	struct aaci_runtime	playback;
	struct aaci_runtime	capture;

	struct snd_pcm		*pcm;
};

#define ACSTREAM_FRONT		0
#define ACSTREAM_SURROUND	1
#define ACSTREAM_LFE		2

#endif
Commit	Line	Data
cb5a6ffc RK	1	/*
	2	* linux/sound/arm/aaci.c - ARM PrimeCell AACI PL041 driver
	3	*
	4	* Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved.
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*/
	10	#ifndef AACI_H
	11	#define AACI_H
	12
	13	/*
	14	* Control and status register offsets
	15	* P39.
	16	*/
	17	#define AACI_CSCH1 0x000
	18	#define AACI_CSCH2 0x014
	19	#define AACI_CSCH3 0x028
	20	#define AACI_CSCH4 0x03c
	21
	22	#define AACI_RXCR 0x000 /* 29 bits Control Rx FIFO */
	23	#define AACI_TXCR 0x004 /* 17 bits Control Tx FIFO */
	24	#define AACI_SR 0x008 /* 12 bits Status */
	25	#define AACI_ISR 0x00c /* 7 bits Int Status */
	26	#define AACI_IE 0x010 /* 7 bits Int Enable */
	27
	28	/*
	29	* Other registers
	30	*/
	31	#define AACI_SL1RX 0x050
	32	#define AACI_SL1TX 0x054
	33	#define AACI_SL2RX 0x058
	34	#define AACI_SL2TX 0x05c
	35	#define AACI_SL12RX 0x060
	36	#define AACI_SL12TX 0x064
	37	#define AACI_SLFR 0x068 /* slot flags */
	38	#define AACI_SLISTAT 0x06c /* slot interrupt status */
	39	#define AACI_SLIEN 0x070 /* slot interrupt enable */
	40	#define AACI_INTCLR 0x074 /* interrupt clear */
	41	#define AACI_MAINCR 0x078 /* main control */
	42	#define AACI_RESET 0x07c /* reset control */
	43	#define AACI_SYNC 0x080 /* sync control */
	44	#define AACI_ALLINTS 0x084 /* all fifo interrupt status */
	45	#define AACI_MAINFR 0x088 /* main flag register */
	46	#define AACI_DR1 0x090 /* data read/written fifo 1 */
	47	#define AACI_DR2 0x0b0 /* data read/written fifo 2 */
	48	#define AACI_DR3 0x0d0 /* data read/written fifo 3 */
	49	#define AACI_DR4 0x0f0 /* data read/written fifo 4 */
	50
	51	/*
41762b8c	52	* TX/RX fifo control register (CR). P48
cb5a6ffc	53	*/
41762b8c KH	54	#define CR_FEN (1 << 16) /* fifo enable */
	55	#define CR_COMPACT (1 << 15) /* compact mode */
	56	#define CR_SZ16 (0 << 13) /* 16 bits */
	57	#define CR_SZ18 (1 << 13) /* 18 bits */
	58	#define CR_SZ20 (2 << 13) /* 20 bits */
	59	#define CR_SZ12 (3 << 13) /* 12 bits */
	60	#define CR_SL12 (1 << 12)
	61	#define CR_SL11 (1 << 11)
	62	#define CR_SL10 (1 << 10)
	63	#define CR_SL9 (1 << 9)
	64	#define CR_SL8 (1 << 8)
	65	#define CR_SL7 (1 << 7)
	66	#define CR_SL6 (1 << 6)
	67	#define CR_SL5 (1 << 5)
	68	#define CR_SL4 (1 << 4)
	69	#define CR_SL3 (1 << 3)
	70	#define CR_SL2 (1 << 2)
	71	#define CR_SL1 (1 << 1)
	72	#define CR_EN (1 << 0) /* transmit enable */
cb5a6ffc RK	73
	74	/*
	75	* status register bits. P49
	76	*/
	77	#define SR_RXTOFE (1 << 11) /* rx timeout fifo empty */
	78	#define SR_TXTO (1 << 10) /* rx timeout fifo nonempty */
	79	#define SR_TXU (1 << 9) /* tx underrun */
	80	#define SR_RXO (1 << 8) /* rx overrun */
	81	#define SR_TXB (1 << 7) /* tx busy */
	82	#define SR_RXB (1 << 6) /* rx busy */
	83	#define SR_TXFF (1 << 5) /* tx fifo full */
	84	#define SR_RXFF (1 << 4) /* rx fifo full */
	85	#define SR_TXHE (1 << 3) /* tx fifo half empty */
	86	#define SR_RXHF (1 << 2) /* rx fifo half full */
	87	#define SR_TXFE (1 << 1) /* tx fifo empty */
	88	#define SR_RXFE (1 << 0) /* rx fifo empty */
	89
	90	/*
	91	* interrupt status register bits.
	92	*/
	93	#define ISR_RXTOFEINTR (1 << 6) /* rx fifo empty */
	94	#define ISR_URINTR (1 << 5) /* tx underflow */
	95	#define ISR_ORINTR (1 << 4) /* rx overflow */
	96	#define ISR_RXINTR (1 << 3) /* rx fifo */
	97	#define ISR_TXINTR (1 << 2) /* tx fifo intr */
	98	#define ISR_RXTOINTR (1 << 1) /* tx timeout */
	99	#define ISR_TXCINTR (1 << 0) /* tx complete */
	100
	101	/*
	102	* interrupt enable register bits.
	103	*/
	104	#define IE_RXTOIE (1 << 6)
	105	#define IE_URIE (1 << 5)
	106	#define IE_ORIE (1 << 4)
	107	#define IE_RXIE (1 << 3)
	108	#define IE_TXIE (1 << 2)
	109	#define IE_RXTIE (1 << 1)
	110	#define IE_TXCIE (1 << 0)
	111
	112	/*
	113	* interrupt status. P51
	114	*/
	115	#define ISR_RXTOFE (1 << 6) /* rx timeout fifo empty */
	116	#define ISR_UR (1 << 5) /* tx fifo underrun */
	117	#define ISR_OR (1 << 4) /* rx fifo overrun */
	118	#define ISR_RX (1 << 3) /* rx interrupt status */
	119	#define ISR_TX (1 << 2) /* tx interrupt status */
	120	#define ISR_RXTO (1 << 1) /* rx timeout */
	121	#define ISR_TXC (1 << 0) /* tx complete */
	122
	123	/*
	124	* interrupt enable. P52
	125	*/
	126	#define IE_RXTOFE (1 << 6) /* rx timeout fifo empty */
	127	#define IE_UR (1 << 5) /* tx fifo underrun */
	128	#define IE_OR (1 << 4) /* rx fifo overrun */
	129	#define IE_RX (1 << 3) /* rx interrupt status */
	130	#define IE_TX (1 << 2) /* tx interrupt status */
	131	#define IE_RXTO (1 << 1) /* rx timeout */
	132	#define IE_TXC (1 << 0) /* tx complete */
	133
	134	/*
	135	* slot flag register bits. P56
	136	*/
137	#define SLFR_RWIS (1 << 13) /* raw wake-up interrupt status */
138	#define SLFR_RGPIOINTR (1 << 12) /* raw gpio interrupt */
139	#define SLFR_12TXE (1 << 11) /* slot 12 tx empty */
140	#define SLFR_12RXV (1 << 10) /* slot 12 rx valid */
141	#define SLFR_2TXE (1 << 9) /* slot 2 tx empty */
142	#define SLFR_2RXV (1 << 8) /* slot 2 rx valid */
143	#define SLFR_1TXE (1 << 7) /* slot 1 tx empty */
144	#define SLFR_1RXV (1 << 6) /* slot 1 rx valid */
145	#define SLFR_12TXB (1 << 5) /* slot 12 tx busy */
146	#define SLFR_12RXB (1 << 4) /* slot 12 rx busy */
147	#define SLFR_2TXB (1 << 3) /* slot 2 tx busy */
148	#define SLFR_2RXB (1 << 2) /* slot 2 rx busy */
149	#define SLFR_1TXB (1 << 1) /* slot 1 tx busy */
150	#define SLFR_1RXB (1 << 0) /* slot 1 rx busy */
151
152	/*
153	* Interrupt clear register.
154	*/
155	#define ICLR_RXTOFEC4 (1 << 12)
156	#define ICLR_RXTOFEC3 (1 << 11)
157	#define ICLR_RXTOFEC2 (1 << 10)
158	#define ICLR_RXTOFEC1 (1 << 9)
159	#define ICLR_TXUEC4 (1 << 8)
160	#define ICLR_TXUEC3 (1 << 7)
161	#define ICLR_TXUEC2 (1 << 6)
162	#define ICLR_TXUEC1 (1 << 5)
163	#define ICLR_RXOEC4 (1 << 4)
164	#define ICLR_RXOEC3 (1 << 3)
165	#define ICLR_RXOEC2 (1 << 2)
166	#define ICLR_RXOEC1 (1 << 1)
167	#define ICLR_WISC (1 << 0)
168
169	/*
170	* Main control register bits. P62
171	*/
172	#define MAINCR_SCRA(x) ((x) << 10) /* secondary codec reg access */
173	#define MAINCR_DMAEN (1 << 9) /* dma enable */
174	#define MAINCR_SL12TXEN (1 << 8) /* slot 12 transmit enable */
175	#define MAINCR_SL12RXEN (1 << 7) /* slot 12 receive enable */
176	#define MAINCR_SL2TXEN (1 << 6) /* slot 2 transmit enable */
177	#define MAINCR_SL2RXEN (1 << 5) /* slot 2 receive enable */
178	#define MAINCR_SL1TXEN (1 << 4) /* slot 1 transmit enable */
179	#define MAINCR_SL1RXEN (1 << 3) /* slot 1 receive enable */
180	#define MAINCR_LPM (1 << 2) /* low power mode */
181	#define MAINCR_LOOPBK (1 << 1) /* loopback */
182	#define MAINCR_IE (1 << 0) /* aaci interface enable */
183
184	/*
185	* Reset register bits. P65
186	*/
187	#define RESET_NRST (1 << 0)
188
189	/*
190	* Sync register bits. P65
191	*/
192	#define SYNC_FORCE (1 << 0)
193
194	/*
195	* Main flag register bits. P66
196	*/
197	#define MAINFR_TXB (1 << 1) /* transmit busy */
198	#define MAINFR_RXB (1 << 0) /* receive busy */
199
200
201
202	struct aaci_runtime {
e12ba644 AV	203	void __iomem *base;
e12ba644 AV	204	void __iomem *fifo;
d6a89fef	205	spinlock_t lock;
cb5a6ffc RK	206
	207	struct ac97_pcm *pcm;
	208	int pcm_open;
	209
	210	u32 cr;
ceb9e476	211	struct snd_pcm_substream *substream;
cb5a6ffc	212
c0dea82c RK	213	unsigned int period; /* byte size of a "period" */
c0dea82c RK	214
cb5a6ffc RK	215	/*
	216	* PIO support
	217	*/
	218	void *start;
	219	void *end;
	220	void *ptr;
	221	int bytes;
5d350cba	222	unsigned int fifo_bytes;
cb5a6ffc RK	223	};
	224
	225	struct aaci {
	226	struct amba_device *dev;
ceb9e476	227	struct snd_card *card;
e12ba644	228	void __iomem *base;
5d350cba	229	unsigned int fifo_depth;
b60fb519 RK	230	unsigned int users;
b60fb519 RK	231	struct mutex irq_lock;
cb5a6ffc RK	232
cb5a6ffc RK	233	/* AC'97 */
12aa7579	234	struct mutex ac97_sem;
a5f65029	235	struct snd_ac97_bus *ac97_bus;
59b8175c	236	struct snd_ac97 *ac97;
cb5a6ffc RK	237
cb5a6ffc RK	238	u32 maincr;
cb5a6ffc RK	239
	240	struct aaci_runtime playback;
	241	struct aaci_runtime capture;
	242
ceb9e476	243	struct snd_pcm *pcm;
cb5a6ffc RK	244	};
	245
	246	#define ACSTREAM_FRONT 0
	247	#define ACSTREAM_SURROUND 1
	248	#define ACSTREAM_LFE 2
	249
	250	#endif