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123 lines
3.8 KiB
123 lines
3.8 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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#ifndef __SOUND_MPU401_H |
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#define __SOUND_MPU401_H |
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/* |
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* Header file for MPU-401 and compatible cards |
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* Copyright (c) by Jaroslav Kysela <[email protected]> |
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*/ |
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#include <sound/rawmidi.h> |
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#include <linux/interrupt.h> |
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#define MPU401_HW_MPU401 1 /* native MPU401 */ |
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#define MPU401_HW_SB 2 /* SoundBlaster MPU-401 UART */ |
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#define MPU401_HW_ES1688 3 /* AudioDrive ES1688 MPU-401 UART */ |
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#define MPU401_HW_OPL3SA2 4 /* Yamaha OPL3-SA2 */ |
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#define MPU401_HW_SONICVIBES 5 /* S3 SonicVibes */ |
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#define MPU401_HW_CS4232 6 /* CS4232 */ |
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#define MPU401_HW_ES18XX 7 /* AudioDrive ES18XX MPU-401 UART */ |
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#define MPU401_HW_FM801 8 /* ForteMedia FM801 */ |
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#define MPU401_HW_TRID4DWAVE 9 /* Trident 4DWave */ |
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#define MPU401_HW_AZT2320 10 /* Aztech AZT2320 */ |
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#define MPU401_HW_ALS100 11 /* Avance Logic ALS100 */ |
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#define MPU401_HW_ICE1712 12 /* Envy24 */ |
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#define MPU401_HW_VIA686A 13 /* VIA 82C686A */ |
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#define MPU401_HW_YMFPCI 14 /* YMF DS-XG PCI */ |
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#define MPU401_HW_CMIPCI 15 /* CMIPCI MPU-401 UART */ |
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#define MPU401_HW_ALS4000 16 /* Avance Logic ALS4000 */ |
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#define MPU401_HW_INTEL8X0 17 /* Intel8x0 driver */ |
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#define MPU401_HW_PC98II 18 /* Roland PC98II */ |
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#define MPU401_HW_AUREAL 19 /* Aureal Vortex */ |
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#define MPU401_INFO_INPUT (1 << 0) /* input stream */ |
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#define MPU401_INFO_OUTPUT (1 << 1) /* output stream */ |
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#define MPU401_INFO_INTEGRATED (1 << 2) /* integrated h/w port */ |
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#define MPU401_INFO_MMIO (1 << 3) /* MMIO access */ |
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#define MPU401_INFO_TX_IRQ (1 << 4) /* independent TX irq */ |
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#define MPU401_INFO_IRQ_HOOK (1 << 5) /* mpu401 irq handler is called |
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from driver irq handler */ |
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#define MPU401_INFO_NO_ACK (1 << 6) /* No ACK cmd needed */ |
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#define MPU401_INFO_USE_TIMER (1 << 15) /* internal */ |
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#define MPU401_MODE_BIT_INPUT 0 |
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#define MPU401_MODE_BIT_OUTPUT 1 |
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#define MPU401_MODE_BIT_INPUT_TRIGGER 2 |
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#define MPU401_MODE_BIT_OUTPUT_TRIGGER 3 |
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#define MPU401_MODE_INPUT (1<<MPU401_MODE_BIT_INPUT) |
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#define MPU401_MODE_OUTPUT (1<<MPU401_MODE_BIT_OUTPUT) |
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#define MPU401_MODE_INPUT_TRIGGER (1<<MPU401_MODE_BIT_INPUT_TRIGGER) |
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#define MPU401_MODE_OUTPUT_TRIGGER (1<<MPU401_MODE_BIT_OUTPUT_TRIGGER) |
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#define MPU401_MODE_INPUT_TIMER (1<<0) |
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#define MPU401_MODE_OUTPUT_TIMER (1<<1) |
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struct snd_mpu401 { |
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struct snd_rawmidi *rmidi; |
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unsigned short hardware; /* MPU401_HW_XXXX */ |
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unsigned int info_flags; /* MPU401_INFO_XXX */ |
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unsigned long port; /* base port of MPU-401 chip */ |
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unsigned long cport; /* port + 1 (usually) */ |
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struct resource *res; /* port resource */ |
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int irq; /* IRQ number of MPU-401 chip */ |
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unsigned long mode; /* MPU401_MODE_XXXX */ |
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int timer_invoked; |
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int (*open_input) (struct snd_mpu401 * mpu); |
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void (*close_input) (struct snd_mpu401 * mpu); |
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int (*open_output) (struct snd_mpu401 * mpu); |
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void (*close_output) (struct snd_mpu401 * mpu); |
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void *private_data; |
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struct snd_rawmidi_substream *substream_input; |
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struct snd_rawmidi_substream *substream_output; |
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spinlock_t input_lock; |
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spinlock_t output_lock; |
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spinlock_t timer_lock; |
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struct timer_list timer; |
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void (*write) (struct snd_mpu401 * mpu, unsigned char data, unsigned long addr); |
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unsigned char (*read) (struct snd_mpu401 *mpu, unsigned long addr); |
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}; |
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/* I/O ports */ |
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#define MPU401C(mpu) (mpu)->cport |
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#define MPU401D(mpu) (mpu)->port |
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/* |
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* control register bits |
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*/ |
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/* read MPU401C() */ |
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#define MPU401_RX_EMPTY 0x80 |
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#define MPU401_TX_FULL 0x40 |
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/* write MPU401C() */ |
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#define MPU401_RESET 0xff |
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#define MPU401_ENTER_UART 0x3f |
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/* read MPU401D() */ |
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#define MPU401_ACK 0xfe |
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/* |
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*/ |
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irqreturn_t snd_mpu401_uart_interrupt(int irq, void *dev_id); |
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irqreturn_t snd_mpu401_uart_interrupt_tx(int irq, void *dev_id); |
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int snd_mpu401_uart_new(struct snd_card *card, |
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int device, |
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unsigned short hardware, |
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unsigned long port, |
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unsigned int info_flags, |
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int irq, |
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struct snd_rawmidi ** rrawmidi); |
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#endif /* __SOUND_MPU401_H */
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