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1 | #ifndef __SOUND_MPU401_H |
2 | #define __SOUND_MPU401_H |
3 | |
4 | /* |
5 | * Header file for MPU-401 and compatible cards |
6 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
7 | * |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify |
10 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 2 of the License, or |
12 | * (at your option) any later version. |
13 | * |
14 | * This program is distributed in the hope that it will be useful, |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | * GNU General Public License for more details. |
18 | * |
19 | * You should have received a copy of the GNU General Public License |
20 | * along with this program; if not, write to the Free Software |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
22 | * |
23 | */ |
24 | |
25 | #include <sound/rawmidi.h> |
26 | #include <linux/interrupt.h> |
27 | |
28 | #define MPU401_HW_MPU401 1 /* native MPU401 */ |
29 | #define MPU401_HW_SB 2 /* SoundBlaster MPU-401 UART */ |
30 | #define MPU401_HW_ES1688 3 /* AudioDrive ES1688 MPU-401 UART */ |
31 | #define MPU401_HW_OPL3SA2 4 /* Yamaha OPL3-SA2 */ |
32 | #define MPU401_HW_SONICVIBES 5 /* S3 SonicVibes */ |
33 | #define MPU401_HW_CS4232 6 /* CS4232 */ |
34 | #define MPU401_HW_ES18XX 7 /* AudioDrive ES18XX MPU-401 UART */ |
35 | #define MPU401_HW_FM801 8 /* ForteMedia FM801 */ |
36 | #define MPU401_HW_TRID4DWAVE 9 /* Trident 4DWave */ |
37 | #define MPU401_HW_AZT2320 10 /* Aztech AZT2320 */ |
38 | #define MPU401_HW_ALS100 11 /* Avance Logic ALS100 */ |
39 | #define MPU401_HW_ICE1712 12 /* Envy24 */ |
40 | #define MPU401_HW_VIA686A 13 /* VIA 82C686A */ |
41 | #define MPU401_HW_YMFPCI 14 /* YMF DS-XG PCI */ |
42 | #define MPU401_HW_CMIPCI 15 /* CMIPCI MPU-401 UART */ |
43 | #define MPU401_HW_ALS4000 16 /* Avance Logic ALS4000 */ |
44 | #define MPU401_HW_INTEL8X0 17 /* Intel8x0 driver */ |
45 | #define MPU401_HW_PC98II 18 /* Roland PC98II */ |
46 | #define MPU401_HW_AUREAL 19 /* Aureal Vortex */ |
47 | |
48 | #define MPU401_INFO_INPUT (1 << 0) /* input stream */ |
49 | #define MPU401_INFO_OUTPUT (1 << 1) /* output stream */ |
50 | #define MPU401_INFO_INTEGRATED (1 << 2) /* integrated h/w port */ |
51 | #define MPU401_INFO_MMIO (1 << 3) /* MMIO access */ |
52 | #define MPU401_INFO_TX_IRQ (1 << 4) /* independent TX irq */ |
53 | #define MPU401_INFO_IRQ_HOOK (1 << 5) /* mpu401 irq handler is called |
54 | from driver irq handler */ |
55 | #define MPU401_INFO_NO_ACK (1 << 6) /* No ACK cmd needed */ |
56 | #define MPU401_INFO_USE_TIMER (1 << 15) /* internal */ |
57 | |
58 | #define MPU401_MODE_BIT_INPUT 0 |
59 | #define MPU401_MODE_BIT_OUTPUT 1 |
60 | #define MPU401_MODE_BIT_INPUT_TRIGGER 2 |
61 | #define MPU401_MODE_BIT_OUTPUT_TRIGGER 3 |
62 | |
63 | #define MPU401_MODE_INPUT (1<<MPU401_MODE_BIT_INPUT) |
64 | #define MPU401_MODE_OUTPUT (1<<MPU401_MODE_BIT_OUTPUT) |
65 | #define MPU401_MODE_INPUT_TRIGGER (1<<MPU401_MODE_BIT_INPUT_TRIGGER) |
66 | #define MPU401_MODE_OUTPUT_TRIGGER (1<<MPU401_MODE_BIT_OUTPUT_TRIGGER) |
67 | |
68 | #define MPU401_MODE_INPUT_TIMER (1<<0) |
69 | #define MPU401_MODE_OUTPUT_TIMER (1<<1) |
70 | |
71 | struct snd_mpu401 { |
72 | struct snd_rawmidi *rmidi; |
73 | |
74 | unsigned short hardware; /* MPU401_HW_XXXX */ |
75 | unsigned int info_flags; /* MPU401_INFO_XXX */ |
76 | unsigned long port; /* base port of MPU-401 chip */ |
77 | unsigned long cport; /* port + 1 (usually) */ |
78 | struct resource *res; /* port resource */ |
79 | int irq; /* IRQ number of MPU-401 chip */ |
80 | |
81 | unsigned long mode; /* MPU401_MODE_XXXX */ |
82 | int timer_invoked; |
83 | |
84 | int (*open_input) (struct snd_mpu401 * mpu); |
85 | void (*close_input) (struct snd_mpu401 * mpu); |
86 | int (*open_output) (struct snd_mpu401 * mpu); |
87 | void (*close_output) (struct snd_mpu401 * mpu); |
88 | void *private_data; |
89 | |
90 | struct snd_rawmidi_substream *substream_input; |
91 | struct snd_rawmidi_substream *substream_output; |
92 | |
93 | spinlock_t input_lock; |
94 | spinlock_t output_lock; |
95 | spinlock_t timer_lock; |
96 | |
97 | struct timer_list timer; |
98 | |
99 | void (*write) (struct snd_mpu401 * mpu, unsigned char data, unsigned long addr); |
100 | unsigned char (*read) (struct snd_mpu401 *mpu, unsigned long addr); |
101 | }; |
102 | |
103 | /* I/O ports */ |
104 | |
105 | #define MPU401C(mpu) (mpu)->cport |
106 | #define MPU401D(mpu) (mpu)->port |
107 | |
108 | /* |
109 | * control register bits |
110 | */ |
111 | /* read MPU401C() */ |
112 | #define MPU401_RX_EMPTY 0x80 |
113 | #define MPU401_TX_FULL 0x40 |
114 | |
115 | /* write MPU401C() */ |
116 | #define MPU401_RESET 0xff |
117 | #define MPU401_ENTER_UART 0x3f |
118 | |
119 | /* read MPU401D() */ |
120 | #define MPU401_ACK 0xfe |
121 | |
122 | |
123 | /* |
124 | |
125 | */ |
126 | |
127 | irqreturn_t snd_mpu401_uart_interrupt(int irq, void *dev_id); |
128 | irqreturn_t snd_mpu401_uart_interrupt_tx(int irq, void *dev_id); |
129 | |
130 | int snd_mpu401_uart_new(struct snd_card *card, |
131 | int device, |
132 | unsigned short hardware, |
133 | unsigned long port, |
134 | unsigned int info_flags, |
135 | int irq, |
136 | struct snd_rawmidi ** rrawmidi); |
137 | |
138 | #endif /* __SOUND_MPU401_H */ |
139 |
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