| 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 */ |