xref: /linux/sound/atmel/ac97c.h (revision 4b132aacb0768ac1e652cf517097ea6f237214b9)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Register definitions for Atmel AC97C
4  *
5  * Copyright (C) 2005-2009 Atmel Corporation
6  */
7 #ifndef __SOUND_ATMEL_AC97C_H
8 #define __SOUND_ATMEL_AC97C_H
9 
10 #define AC97C_MR		0x08
11 #define AC97C_ICA		0x10
12 #define AC97C_OCA		0x14
13 #define AC97C_CARHR		0x20
14 #define AC97C_CATHR		0x24
15 #define AC97C_CASR		0x28
16 #define AC97C_CAMR		0x2c
17 #define AC97C_CORHR		0x40
18 #define AC97C_COTHR		0x44
19 #define AC97C_COSR		0x48
20 #define AC97C_COMR		0x4c
21 #define AC97C_SR		0x50
22 #define AC97C_IER		0x54
23 #define AC97C_IDR		0x58
24 #define AC97C_IMR		0x5c
25 #define AC97C_VERSION		0xfc
26 
27 #define AC97C_CATPR		PDC_TPR
28 #define AC97C_CATCR		PDC_TCR
29 #define AC97C_CATNPR		PDC_TNPR
30 #define AC97C_CATNCR		PDC_TNCR
31 #define AC97C_CARPR		PDC_RPR
32 #define AC97C_CARCR		PDC_RCR
33 #define AC97C_CARNPR		PDC_RNPR
34 #define AC97C_CARNCR		PDC_RNCR
35 #define AC97C_PTCR		PDC_PTCR
36 
37 #define AC97C_MR_ENA		(1 << 0)
38 #define AC97C_MR_WRST		(1 << 1)
39 #define AC97C_MR_VRA		(1 << 2)
40 
41 #define AC97C_CSR_TXRDY		(1 << 0)
42 #define AC97C_CSR_TXEMPTY	(1 << 1)
43 #define AC97C_CSR_UNRUN		(1 << 2)
44 #define AC97C_CSR_RXRDY		(1 << 4)
45 #define AC97C_CSR_OVRUN		(1 << 5)
46 #define AC97C_CSR_ENDTX		(1 << 10)
47 #define AC97C_CSR_ENDRX		(1 << 14)
48 
49 #define AC97C_CMR_SIZE_20	(0 << 16)
50 #define AC97C_CMR_SIZE_18	(1 << 16)
51 #define AC97C_CMR_SIZE_16	(2 << 16)
52 #define AC97C_CMR_SIZE_10	(3 << 16)
53 #define AC97C_CMR_CEM_LITTLE	(1 << 18)
54 #define AC97C_CMR_CEM_BIG	(0 << 18)
55 #define AC97C_CMR_CENA		(1 << 21)
56 #define AC97C_CMR_DMAEN		(1 << 22)
57 
58 #define AC97C_SR_CAEVT		(1 << 3)
59 #define AC97C_SR_COEVT		(1 << 2)
60 #define AC97C_SR_WKUP		(1 << 1)
61 #define AC97C_SR_SOF		(1 << 0)
62 
63 #define AC97C_CH_MASK(slot)						\
64 	(0x7 << (3 * (AC97_SLOT_##slot - 3)))
65 #define AC97C_CH_ASSIGN(slot, channel)					\
66 	(AC97C_CHANNEL_##channel << (3 * (AC97_SLOT_##slot - 3)))
67 #define AC97C_CHANNEL_NONE	0x0
68 #define AC97C_CHANNEL_A		0x1
69 
70 #endif /* __SOUND_ATMEL_AC97C_H */
71