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