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 54 #define MPU401_MODE_BIT_INPUT 0 55 #define MPU401_MODE_BIT_OUTPUT 1 56 #define MPU401_MODE_BIT_INPUT_TRIGGER 2 57 #define MPU401_MODE_BIT_OUTPUT_TRIGGER 3 58 59 #define MPU401_MODE_INPUT (1<<MPU401_MODE_BIT_INPUT) 60 #define MPU401_MODE_OUTPUT (1<<MPU401_MODE_BIT_OUTPUT) 61 #define MPU401_MODE_INPUT_TRIGGER (1<<MPU401_MODE_BIT_INPUT_TRIGGER) 62 #define MPU401_MODE_OUTPUT_TRIGGER (1<<MPU401_MODE_BIT_OUTPUT_TRIGGER) 63 64 #define MPU401_MODE_INPUT_TIMER (1<<0) 65 #define MPU401_MODE_OUTPUT_TIMER (1<<1) 66 67 struct snd_mpu401 { 68 struct snd_rawmidi *rmidi; 69 70 unsigned short hardware; /* MPU401_HW_XXXX */ 71 unsigned int info_flags; /* MPU401_INFO_XXX */ 72 unsigned long port; /* base port of MPU-401 chip */ 73 unsigned long cport; /* port + 1 (usually) */ 74 struct resource *res; /* port resource */ 75 int irq; /* IRQ number of MPU-401 chip (-1 = poll) */ 76 int irq_flags; 77 78 unsigned long mode; /* MPU401_MODE_XXXX */ 79 int timer_invoked; 80 81 int (*open_input) (struct snd_mpu401 * mpu); 82 void (*close_input) (struct snd_mpu401 * mpu); 83 int (*open_output) (struct snd_mpu401 * mpu); 84 void (*close_output) (struct snd_mpu401 * mpu); 85 void *private_data; 86 87 struct snd_rawmidi_substream *substream_input; 88 struct snd_rawmidi_substream *substream_output; 89 90 spinlock_t input_lock; 91 spinlock_t output_lock; 92 spinlock_t timer_lock; 93 94 struct timer_list timer; 95 96 void (*write) (struct snd_mpu401 * mpu, unsigned char data, unsigned long addr); 97 unsigned char (*read) (struct snd_mpu401 *mpu, unsigned long addr); 98 }; 99 100 /* I/O ports */ 101 102 #define MPU401C(mpu) (mpu)->cport 103 #define MPU401D(mpu) (mpu)->port 104 105 /* 106 * control register bits 107 */ 108 /* read MPU401C() */ 109 #define MPU401_RX_EMPTY 0x80 110 #define MPU401_TX_FULL 0x40 111 112 /* write MPU401C() */ 113 #define MPU401_RESET 0xff 114 #define MPU401_ENTER_UART 0x3f 115 116 /* read MPU401D() */ 117 #define MPU401_ACK 0xfe 118 119 120 /* 121 122 */ 123 124 irqreturn_t snd_mpu401_uart_interrupt(int irq, void *dev_id); 125 irqreturn_t snd_mpu401_uart_interrupt_tx(int irq, void *dev_id); 126 127 int snd_mpu401_uart_new(struct snd_card *card, 128 int device, 129 unsigned short hardware, 130 unsigned long port, 131 unsigned int info_flags, 132 int irq, 133 int irq_flags, 134 struct snd_rawmidi ** rrawmidi); 135 136 #endif /* __SOUND_MPU401_H */ 137