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1a59d1b8 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
1da177e4 LT |
2 | #ifndef __SOUND_MPU401_H |
3 | #define __SOUND_MPU401_H | |
4 | ||
5 | /* | |
6 | * Header file for MPU-401 and compatible cards | |
c1017a4c | 7 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
1da177e4 LT |
8 | */ |
9 | ||
a1ce3928 | 10 | #include <sound/rawmidi.h> |
1da177e4 LT |
11 | #include <linux/interrupt.h> |
12 | ||
13 | #define MPU401_HW_MPU401 1 /* native MPU401 */ | |
14 | #define MPU401_HW_SB 2 /* SoundBlaster MPU-401 UART */ | |
15 | #define MPU401_HW_ES1688 3 /* AudioDrive ES1688 MPU-401 UART */ | |
16 | #define MPU401_HW_OPL3SA2 4 /* Yamaha OPL3-SA2 */ | |
17 | #define MPU401_HW_SONICVIBES 5 /* S3 SonicVibes */ | |
18 | #define MPU401_HW_CS4232 6 /* CS4232 */ | |
19 | #define MPU401_HW_ES18XX 7 /* AudioDrive ES18XX MPU-401 UART */ | |
20 | #define MPU401_HW_FM801 8 /* ForteMedia FM801 */ | |
21 | #define MPU401_HW_TRID4DWAVE 9 /* Trident 4DWave */ | |
22 | #define MPU401_HW_AZT2320 10 /* Aztech AZT2320 */ | |
23 | #define MPU401_HW_ALS100 11 /* Avance Logic ALS100 */ | |
24 | #define MPU401_HW_ICE1712 12 /* Envy24 */ | |
25 | #define MPU401_HW_VIA686A 13 /* VIA 82C686A */ | |
26 | #define MPU401_HW_YMFPCI 14 /* YMF DS-XG PCI */ | |
27 | #define MPU401_HW_CMIPCI 15 /* CMIPCI MPU-401 UART */ | |
28 | #define MPU401_HW_ALS4000 16 /* Avance Logic ALS4000 */ | |
29 | #define MPU401_HW_INTEL8X0 17 /* Intel8x0 driver */ | |
30 | #define MPU401_HW_PC98II 18 /* Roland PC98II */ | |
31 | #define MPU401_HW_AUREAL 19 /* Aureal Vortex */ | |
32 | ||
302e4c2f TI |
33 | #define MPU401_INFO_INPUT (1 << 0) /* input stream */ |
34 | #define MPU401_INFO_OUTPUT (1 << 1) /* output stream */ | |
35 | #define MPU401_INFO_INTEGRATED (1 << 2) /* integrated h/w port */ | |
36 | #define MPU401_INFO_MMIO (1 << 3) /* MMIO access */ | |
37 | #define MPU401_INFO_TX_IRQ (1 << 4) /* independent TX irq */ | |
dba8b469 CL |
38 | #define MPU401_INFO_IRQ_HOOK (1 << 5) /* mpu401 irq handler is called |
39 | from driver irq handler */ | |
df7e3fdf | 40 | #define MPU401_INFO_NO_ACK (1 << 6) /* No ACK cmd needed */ |
dba8b469 | 41 | #define MPU401_INFO_USE_TIMER (1 << 15) /* internal */ |
302e4c2f | 42 | |
1da177e4 LT |
43 | #define MPU401_MODE_BIT_INPUT 0 |
44 | #define MPU401_MODE_BIT_OUTPUT 1 | |
45 | #define MPU401_MODE_BIT_INPUT_TRIGGER 2 | |
46 | #define MPU401_MODE_BIT_OUTPUT_TRIGGER 3 | |
47 | ||
48 | #define MPU401_MODE_INPUT (1<<MPU401_MODE_BIT_INPUT) | |
49 | #define MPU401_MODE_OUTPUT (1<<MPU401_MODE_BIT_OUTPUT) | |
50 | #define MPU401_MODE_INPUT_TRIGGER (1<<MPU401_MODE_BIT_INPUT_TRIGGER) | |
51 | #define MPU401_MODE_OUTPUT_TRIGGER (1<<MPU401_MODE_BIT_OUTPUT_TRIGGER) | |
52 | ||
53 | #define MPU401_MODE_INPUT_TIMER (1<<0) | |
54 | #define MPU401_MODE_OUTPUT_TIMER (1<<1) | |
55 | ||
e1fad17b TI |
56 | struct snd_mpu401 { |
57 | struct snd_rawmidi *rmidi; | |
1da177e4 LT |
58 | |
59 | unsigned short hardware; /* MPU401_HW_XXXX */ | |
302e4c2f | 60 | unsigned int info_flags; /* MPU401_INFO_XXX */ |
1da177e4 LT |
61 | unsigned long port; /* base port of MPU-401 chip */ |
62 | unsigned long cport; /* port + 1 (usually) */ | |
63 | struct resource *res; /* port resource */ | |
dba8b469 | 64 | int irq; /* IRQ number of MPU-401 chip */ |
1da177e4 LT |
65 | |
66 | unsigned long mode; /* MPU401_MODE_XXXX */ | |
67 | int timer_invoked; | |
68 | ||
e1fad17b TI |
69 | int (*open_input) (struct snd_mpu401 * mpu); |
70 | void (*close_input) (struct snd_mpu401 * mpu); | |
71 | int (*open_output) (struct snd_mpu401 * mpu); | |
72 | void (*close_output) (struct snd_mpu401 * mpu); | |
1da177e4 LT |
73 | void *private_data; |
74 | ||
e1fad17b TI |
75 | struct snd_rawmidi_substream *substream_input; |
76 | struct snd_rawmidi_substream *substream_output; | |
1da177e4 LT |
77 | |
78 | spinlock_t input_lock; | |
79 | spinlock_t output_lock; | |
80 | spinlock_t timer_lock; | |
81 | ||
82 | struct timer_list timer; | |
83 | ||
e1fad17b TI |
84 | void (*write) (struct snd_mpu401 * mpu, unsigned char data, unsigned long addr); |
85 | unsigned char (*read) (struct snd_mpu401 *mpu, unsigned long addr); | |
1da177e4 LT |
86 | }; |
87 | ||
88 | /* I/O ports */ | |
89 | ||
90 | #define MPU401C(mpu) (mpu)->cport | |
91 | #define MPU401D(mpu) (mpu)->port | |
92 | ||
b415ed45 TI |
93 | /* |
94 | * control register bits | |
95 | */ | |
96 | /* read MPU401C() */ | |
97 | #define MPU401_RX_EMPTY 0x80 | |
98 | #define MPU401_TX_FULL 0x40 | |
99 | ||
100 | /* write MPU401C() */ | |
101 | #define MPU401_RESET 0xff | |
102 | #define MPU401_ENTER_UART 0x3f | |
103 | ||
104 | /* read MPU401D() */ | |
105 | #define MPU401_ACK 0xfe | |
106 | ||
107 | ||
1da177e4 LT |
108 | /* |
109 | ||
110 | */ | |
111 | ||
7d12e780 DH |
112 | irqreturn_t snd_mpu401_uart_interrupt(int irq, void *dev_id); |
113 | irqreturn_t snd_mpu401_uart_interrupt_tx(int irq, void *dev_id); | |
1da177e4 | 114 | |
e1fad17b | 115 | int snd_mpu401_uart_new(struct snd_card *card, |
1da177e4 LT |
116 | int device, |
117 | unsigned short hardware, | |
118 | unsigned long port, | |
302e4c2f | 119 | unsigned int info_flags, |
1da177e4 | 120 | int irq, |
e1fad17b | 121 | struct snd_rawmidi ** rrawmidi); |
1da177e4 LT |
122 | |
123 | #endif /* __SOUND_MPU401_H */ |