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usr
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src
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linux-headers-6.8.0-36
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include
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sound
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mpu401.h
/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef __SOUND_MPU401_H #define __SOUND_MPU401_H /* * Header file for MPU-401 and compatible cards * Copyright (c) by Jaroslav Kysela <perex@perex.cz> */ #include <sound/rawmidi.h> #include <linux/interrupt.h> #define MPU401_HW_MPU401 1 /* native MPU401 */ #define MPU401_HW_SB 2 /* SoundBlaster MPU-401 UART */ #define MPU401_HW_ES1688 3 /* AudioDrive ES1688 MPU-401 UART */ #define MPU401_HW_OPL3SA2 4 /* Yamaha OPL3-SA2 */ #define MPU401_HW_SONICVIBES 5 /* S3 SonicVibes */ #define MPU401_HW_CS4232 6 /* CS4232 */ #define MPU401_HW_ES18XX 7 /* AudioDrive ES18XX MPU-401 UART */ #define MPU401_HW_FM801 8 /* ForteMedia FM801 */ #define MPU401_HW_TRID4DWAVE 9 /* Trident 4DWave */ #define MPU401_HW_AZT2320 10 /* Aztech AZT2320 */ #define MPU401_HW_ALS100 11 /* Avance Logic ALS100 */ #define MPU401_HW_ICE1712 12 /* Envy24 */ #define MPU401_HW_VIA686A 13 /* VIA 82C686A */ #define MPU401_HW_YMFPCI 14 /* YMF DS-XG PCI */ #define MPU401_HW_CMIPCI 15 /* CMIPCI MPU-401 UART */ #define MPU401_HW_ALS4000 16 /* Avance Logic ALS4000 */ #define MPU401_HW_INTEL8X0 17 /* Intel8x0 driver */ #define MPU401_HW_PC98II 18 /* Roland PC98II */ #define MPU401_HW_AUREAL 19 /* Aureal Vortex */ #define MPU401_INFO_INPUT (1 << 0) /* input stream */ #define MPU401_INFO_OUTPUT (1 << 1) /* output stream */ #define MPU401_INFO_INTEGRATED (1 << 2) /* integrated h/w port */ #define MPU401_INFO_MMIO (1 << 3) /* MMIO access */ #define MPU401_INFO_TX_IRQ (1 << 4) /* independent TX irq */ #define MPU401_INFO_IRQ_HOOK (1 << 5) /* mpu401 irq handler is called from driver irq handler */ #define MPU401_INFO_NO_ACK (1 << 6) /* No ACK cmd needed */ #define MPU401_INFO_USE_TIMER (1 << 15) /* internal */ #define MPU401_MODE_BIT_INPUT 0 #define MPU401_MODE_BIT_OUTPUT 1 #define MPU401_MODE_BIT_INPUT_TRIGGER 2 #define MPU401_MODE_BIT_OUTPUT_TRIGGER 3 #define MPU401_MODE_INPUT (1<<MPU401_MODE_BIT_INPUT) #define MPU401_MODE_OUTPUT (1<<MPU401_MODE_BIT_OUTPUT) #define MPU401_MODE_INPUT_TRIGGER (1<<MPU401_MODE_BIT_INPUT_TRIGGER) #define MPU401_MODE_OUTPUT_TRIGGER (1<<MPU401_MODE_BIT_OUTPUT_TRIGGER) #define MPU401_MODE_INPUT_TIMER (1<<0) #define MPU401_MODE_OUTPUT_TIMER (1<<1) struct snd_mpu401 { struct snd_rawmidi *rmidi; unsigned short hardware; /* MPU401_HW_XXXX */ unsigned int info_flags; /* MPU401_INFO_XXX */ unsigned long port; /* base port of MPU-401 chip */ unsigned long cport; /* port + 1 (usually) */ struct resource *res; /* port resource */ int irq; /* IRQ number of MPU-401 chip */ unsigned long mode; /* MPU401_MODE_XXXX */ int timer_invoked; int (*open_input) (struct snd_mpu401 * mpu); void (*close_input) (struct snd_mpu401 * mpu); int (*open_output) (struct snd_mpu401 * mpu); void (*close_output) (struct snd_mpu401 * mpu); void *private_data; struct snd_rawmidi_substream *substream_input; struct snd_rawmidi_substream *substream_output; spinlock_t input_lock; spinlock_t output_lock; spinlock_t timer_lock; struct timer_list timer; void (*write) (struct snd_mpu401 * mpu, unsigned char data, unsigned long addr); unsigned char (*read) (struct snd_mpu401 *mpu, unsigned long addr); }; /* I/O ports */ #define MPU401C(mpu) (mpu)->cport #define MPU401D(mpu) (mpu)->port /* * control register bits */ /* read MPU401C() */ #define MPU401_RX_EMPTY 0x80 #define MPU401_TX_FULL 0x40 /* write MPU401C() */ #define MPU401_RESET 0xff #define MPU401_ENTER_UART 0x3f /* read MPU401D() */ #define MPU401_ACK 0xfe /* */ irqreturn_t snd_mpu401_uart_interrupt(int irq, void *dev_id); irqreturn_t snd_mpu401_uart_interrupt_tx(int irq, void *dev_id); int snd_mpu401_uart_new(struct snd_card *card, int device, unsigned short hardware, unsigned long port, unsigned int info_flags, int irq, struct snd_rawmidi ** rrawmidi); #endif /* __SOUND_MPU401_H */
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