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 68struct 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 125irqreturn_t snd_mpu401_uart_interrupt(int irq, void *dev_id); 126irqreturn_t snd_mpu401_uart_interrupt_tx(int irq, void *dev_id); 127 128int 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