Warning: This file is not a C or C++ file. It does not have highlighting.
1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
---|---|
2 | #ifndef __SOUND_MPU401_H |
3 | #define __SOUND_MPU401_H |
4 | |
5 | /* |
6 | * Header file for MPU-401 and compatible cards |
7 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
8 | */ |
9 | |
10 | #include <sound/rawmidi.h> |
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 | |
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 */ |
38 | #define MPU401_INFO_IRQ_HOOK (1 << 5) /* mpu401 irq handler is called |
39 | from driver irq handler */ |
40 | #define MPU401_INFO_NO_ACK (1 << 6) /* No ACK cmd needed */ |
41 | #define MPU401_INFO_USE_TIMER (1 << 15) /* internal */ |
42 | |
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 | |
56 | struct snd_mpu401 { |
57 | struct snd_rawmidi *rmidi; |
58 | |
59 | unsigned short hardware; /* MPU401_HW_XXXX */ |
60 | unsigned int info_flags; /* MPU401_INFO_XXX */ |
61 | unsigned long port; /* base port of MPU-401 chip */ |
62 | unsigned long cport; /* port + 1 (usually) */ |
63 | struct resource *res; /* port resource */ |
64 | int irq; /* IRQ number of MPU-401 chip */ |
65 | |
66 | unsigned long mode; /* MPU401_MODE_XXXX */ |
67 | int timer_invoked; |
68 | |
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); |
73 | void *private_data; |
74 | |
75 | struct snd_rawmidi_substream *substream_input; |
76 | struct snd_rawmidi_substream *substream_output; |
77 | |
78 | spinlock_t input_lock; |
79 | spinlock_t output_lock; |
80 | spinlock_t timer_lock; |
81 | |
82 | struct timer_list timer; |
83 | |
84 | void (*write) (struct snd_mpu401 * mpu, unsigned char data, unsigned long addr); |
85 | unsigned char (*read) (struct snd_mpu401 *mpu, unsigned long addr); |
86 | }; |
87 | |
88 | /* I/O ports */ |
89 | |
90 | #define MPU401C(mpu) (mpu)->cport |
91 | #define MPU401D(mpu) (mpu)->port |
92 | |
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 | |
108 | /* |
109 | |
110 | */ |
111 | |
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); |
114 | |
115 | int snd_mpu401_uart_new(struct snd_card *card, |
116 | int device, |
117 | unsigned short hardware, |
118 | unsigned long port, |
119 | unsigned int info_flags, |
120 | int irq, |
121 | struct snd_rawmidi ** rrawmidi); |
122 | |
123 | #endif /* __SOUND_MPU401_H */ |
124 |
Warning: This file is not a C or C++ file. It does not have highlighting.