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 "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_NO_ACK (1 << 6) /* No ACK cmd needed */
54
55 #define MPU401_MODE_BIT_INPUT 0
56 #define MPU401_MODE_BIT_OUTPUT 1
57 #define MPU401_MODE_BIT_INPUT_TRIGGER 2
58 #define MPU401_MODE_BIT_OUTPUT_TRIGGER 3
59
60 #define MPU401_MODE_INPUT (1<<MPU401_MODE_BIT_INPUT)
61 #define MPU401_MODE_OUTPUT (1<<MPU401_MODE_BIT_OUTPUT)
62 #define MPU401_MODE_INPUT_TRIGGER (1<<MPU401_MODE_BIT_INPUT_TRIGGER)
63 #define MPU401_MODE_OUTPUT_TRIGGER (1<<MPU401_MODE_BIT_OUTPUT_TRIGGER)
64
65 #define MPU401_MODE_INPUT_TIMER (1<<0)
66 #define MPU401_MODE_OUTPUT_TIMER (1<<1)
67
68 struct snd_mpu401 {
69 struct snd_rawmidi *rmidi;
70
71 unsigned short hardware; /* MPU401_HW_XXXX */
72 unsigned int info_flags; /* MPU401_INFO_XXX */
73 unsigned long port; /* base port of MPU-401 chip */
74 unsigned long cport; /* port + 1 (usually) */
75 struct resource *res; /* port resource */
76 int irq; /* IRQ number of MPU-401 chip (-1 = poll) */
77 int irq_flags;
78
79 unsigned long mode; /* MPU401_MODE_XXXX */
80 int timer_invoked;
81
82 int (*open_input) (struct snd_mpu401 * mpu);
83 void (*close_input) (struct snd_mpu401 * mpu);
84 int (*open_output) (struct snd_mpu401 * mpu);
85 void (*close_output) (struct snd_mpu401 * mpu);
86 void *private_data;
87
88 struct snd_rawmidi_substream *substream_input;
89 struct snd_rawmidi_substream *substream_output;
90
91 spinlock_t input_lock;
92 spinlock_t output_lock;
93 spinlock_t timer_lock;
94
95 struct timer_list timer;
96
97 void (*write) (struct snd_mpu401 * mpu, unsigned char data, unsigned long addr);
98 unsigned char (*read) (struct snd_mpu401 *mpu, unsigned long addr);
99 };
100
101 /* I/O ports */
102
103 #define MPU401C(mpu) (mpu)->cport
104 #define MPU401D(mpu) (mpu)->port
105
106 /*
107 * control register bits
108 */
109 /* read MPU401C() */
110 #define MPU401_RX_EMPTY 0x80
111 #define MPU401_TX_FULL 0x40
112
113 /* write MPU401C() */
114 #define MPU401_RESET 0xff
115 #define MPU401_ENTER_UART 0x3f
116
117 /* read MPU401D() */
118 #define MPU401_ACK 0xfe
119
120
121 /*
122
123 */
124
125 irqreturn_t snd_mpu401_uart_interrupt(int irq, void *dev_id);
126 irqreturn_t snd_mpu401_uart_interrupt_tx(int irq, void *dev_id);
127
128 int snd_mpu401_uart_new(struct snd_card *card,
129 int device,
130 unsigned short hardware,
131 unsigned long port,
132 unsigned int info_flags,
133 int irq,
134 int irq_flags,
135 struct snd_rawmidi ** rrawmidi);
136
137 #endif /* __SOUND_MPU401_H */
138
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