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(chip->regmap[reg>>1] = val, chip->port + reg);
109 }
110
111 static inline unsigned short pdacf_reg_read(struct snd_pdacf *chip, unsigned char reg)
112 {
113 return inw(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
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