1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * Driver for Sound Cors PDAudioCF soundcard |
4 | * |
5 | * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz> |
6 | */ |
7 | |
8 | #ifndef __PDAUDIOCF_H |
9 | #define __PDAUDIOCF_H |
10 | |
11 | #include <sound/pcm.h> |
12 | #include <linux/io.h> |
13 | #include <linux/interrupt.h> |
14 | #include <pcmcia/cistpl.h> |
15 | #include <pcmcia/ds.h> |
16 | |
17 | #include <sound/ak4117.h> |
18 | |
19 | /* PDAUDIOCF registers */ |
20 | #define PDAUDIOCF_REG_MD 0x00 /* music data, R/O */ |
21 | #define PDAUDIOCF_REG_WDP 0x02 /* write data pointer / 2, R/O */ |
22 | #define PDAUDIOCF_REG_RDP 0x04 /* read data pointer / 2, R/O */ |
23 | #define PDAUDIOCF_REG_TCR 0x06 /* test control register W/O */ |
24 | #define PDAUDIOCF_REG_SCR 0x08 /* status and control, R/W (see bit description) */ |
25 | #define PDAUDIOCF_REG_ISR 0x0a /* interrupt status, R/O */ |
26 | #define PDAUDIOCF_REG_IER 0x0c /* interrupt enable, R/W */ |
27 | #define PDAUDIOCF_REG_AK_IFR 0x0e /* AK interface register, R/W */ |
28 | |
29 | /* PDAUDIOCF_REG_TCR */ |
30 | #define PDAUDIOCF_ELIMAKMBIT (1<<0) /* simulate AKM music data */ |
31 | #define PDAUDIOCF_TESTDATASEL (1<<1) /* test data selection, 0 = 0x55, 1 = pseudo-random */ |
32 | |
33 | /* PDAUDIOCF_REG_SCR */ |
34 | #define PDAUDIOCF_AK_SBP (1<<0) /* serial port busy flag */ |
35 | #define PDAUDIOCF_RST (1<<2) /* FPGA, AKM + SRAM buffer reset */ |
36 | #define PDAUDIOCF_PDN (1<<3) /* power down bit */ |
37 | #define PDAUDIOCF_CLKDIV0 (1<<4) /* choose 24.576Mhz clock divided by 1,2,3 or 4 */ |
38 | #define PDAUDIOCF_CLKDIV1 (1<<5) |
39 | #define PDAUDIOCF_RECORD (1<<6) /* start capturing to SRAM */ |
40 | #define PDAUDIOCF_AK_SDD (1<<7) /* music data detected */ |
41 | #define PDAUDIOCF_RED_LED_OFF (1<<8) /* red LED off override */ |
42 | #define PDAUDIOCF_BLUE_LED_OFF (1<<9) /* blue LED off override */ |
43 | #define PDAUDIOCF_DATAFMT0 (1<<10) /* data format bits: 00 = 16-bit, 01 = 18-bit */ |
44 | #define PDAUDIOCF_DATAFMT1 (1<<11) /* 10 = 20-bit, 11 = 24-bit, all right justified */ |
45 | #define PDAUDIOCF_FPGAREV(x) ((x>>12)&0x0f) /* FPGA revision */ |
46 | |
47 | /* PDAUDIOCF_REG_ISR */ |
48 | #define PDAUDIOCF_IRQLVL (1<<0) /* Buffer level IRQ */ |
49 | #define PDAUDIOCF_IRQOVR (1<<1) /* Overrun IRQ */ |
50 | #define PDAUDIOCF_IRQAKM (1<<2) /* AKM IRQ */ |
51 | |
52 | /* PDAUDIOCF_REG_IER */ |
53 | #define PDAUDIOCF_IRQLVLEN0 (1<<0) /* fill threshold levels; 00 = none, 01 = 1/8th of buffer */ |
54 | #define PDAUDIOCF_IRQLVLEN1 (1<<1) /* 10 = 1/4th of buffer, 11 = 1/2th of buffer */ |
55 | #define PDAUDIOCF_IRQOVREN (1<<2) /* enable overrun IRQ */ |
56 | #define PDAUDIOCF_IRQAKMEN (1<<3) /* enable AKM IRQ */ |
57 | #define PDAUDIOCF_BLUEDUTY0 (1<<8) /* blue LED duty cycle; 00 = 100%, 01 = 50% */ |
58 | #define PDAUDIOCF_BLUEDUTY1 (1<<9) /* 02 = 25%, 11 = 12% */ |
59 | #define PDAUDIOCF_REDDUTY0 (1<<10) /* red LED duty cycle; 00 = 100%, 01 = 50% */ |
60 | #define PDAUDIOCF_REDDUTY1 (1<<11) /* 02 = 25%, 11 = 12% */ |
61 | #define PDAUDIOCF_BLUESDD (1<<12) /* blue LED against SDD bit */ |
62 | #define PDAUDIOCF_BLUEMODULATE (1<<13) /* save power when 100% duty cycle selected */ |
63 | #define PDAUDIOCF_REDMODULATE (1<<14) /* save power when 100% duty cycle selected */ |
64 | #define PDAUDIOCF_HALFRATE (1<<15) /* slow both LED blinks by half (also spdif detect rate) */ |
65 | |
66 | /* chip status */ |
67 | #define PDAUDIOCF_STAT_IS_STALE (1<<0) |
68 | #define PDAUDIOCF_STAT_IS_CONFIGURED (1<<1) |
69 | #define PDAUDIOCF_STAT_IS_SUSPENDED (1<<2) |
70 | |
71 | struct snd_pdacf { |
72 | struct snd_card *card; |
73 | int index; |
74 | |
75 | unsigned long port; |
76 | int irq; |
77 | |
78 | struct mutex reg_lock; |
79 | unsigned short regmap[8]; |
80 | unsigned short suspend_reg_scr; |
81 | |
82 | spinlock_t ak4117_lock; |
83 | struct ak4117 *ak4117; |
84 | |
85 | unsigned int chip_status; |
86 | |
87 | struct snd_pcm *pcm; |
88 | struct snd_pcm_substream *pcm_substream; |
89 | unsigned int pcm_running: 1; |
90 | unsigned int pcm_channels; |
91 | unsigned int pcm_swab; |
92 | unsigned int pcm_little; |
93 | unsigned int pcm_frame; |
94 | unsigned int pcm_sample; |
95 | unsigned int pcm_xor; |
96 | unsigned int pcm_size; |
97 | unsigned int pcm_period; |
98 | unsigned int pcm_tdone; |
99 | unsigned int pcm_hwptr; |
100 | void *pcm_area; |
101 | |
102 | /* pcmcia stuff */ |
103 | struct pcmcia_device *p_dev; |
104 | }; |
105 | |
106 | static inline void pdacf_reg_write(struct snd_pdacf *chip, unsigned char reg, unsigned short val) |
107 | { |
108 | outw(value: chip->regmap[reg>>1] = val, port: chip->port + reg); |
109 | } |
110 | |
111 | static inline unsigned short pdacf_reg_read(struct snd_pdacf *chip, unsigned char reg) |
112 | { |
113 | return inw(port: chip->port + reg); |
114 | } |
115 | |
116 | struct snd_pdacf *snd_pdacf_create(struct snd_card *card); |
117 | int snd_pdacf_ak4117_create(struct snd_pdacf *pdacf); |
118 | void snd_pdacf_powerdown(struct snd_pdacf *chip); |
119 | #ifdef CONFIG_PM |
120 | int snd_pdacf_suspend(struct snd_pdacf *chip); |
121 | int snd_pdacf_resume(struct snd_pdacf *chip); |
122 | #endif |
123 | int snd_pdacf_pcm_new(struct snd_pdacf *chip); |
124 | irqreturn_t pdacf_interrupt(int irq, void *dev); |
125 | irqreturn_t pdacf_threaded_irq(int irq, void *dev); |
126 | void pdacf_reinit(struct snd_pdacf *chip, int resume); |
127 | |
128 | #endif /* __PDAUDIOCF_H */ |
129 | |