/* SPDX-License-Identifier: GPL-2.0-or-later */ /* -*- linux-c -*- * * * ALSA driver for the digigram lx6464es interface * low-level interface * * Copyright (c) 2009 Tim Blechmann <[email protected]> */ #ifndef LX_CORE_H #define LX_CORE_H #include <linux/interrupt.h> #include "lx_defs.h" #define REG_CRM_NUMBER … struct lx6464es; /* low-level register access */ /* dsp register access */ enum { … }; unsigned long lx_dsp_reg_read(struct lx6464es *chip, int port); void lx_dsp_reg_write(struct lx6464es *chip, int port, unsigned data); /* plx register access */ enum { … }; unsigned long lx_plx_reg_read(struct lx6464es *chip, int port); void lx_plx_reg_write(struct lx6464es *chip, int port, u32 data); /* rhm */ struct lx_rmh { … }; /* low-level dsp access */ int lx_dsp_get_version(struct lx6464es *chip, u32 *rdsp_version); int lx_dsp_get_clock_frequency(struct lx6464es *chip, u32 *rfreq); int lx_dsp_set_granularity(struct lx6464es *chip, u32 gran); int lx_dsp_read_async_events(struct lx6464es *chip, u32 *data); int lx_dsp_get_mac(struct lx6464es *chip); /* low-level pipe handling */ int lx_pipe_allocate(struct lx6464es *chip, u32 pipe, int is_capture, int channels); int lx_pipe_release(struct lx6464es *chip, u32 pipe, int is_capture); int lx_pipe_sample_count(struct lx6464es *chip, u32 pipe, int is_capture, u64 *rsample_count); int lx_pipe_state(struct lx6464es *chip, u32 pipe, int is_capture, u16 *rstate); int lx_pipe_stop(struct lx6464es *chip, u32 pipe, int is_capture); int lx_pipe_start(struct lx6464es *chip, u32 pipe, int is_capture); int lx_pipe_pause(struct lx6464es *chip, u32 pipe, int is_capture); int lx_pipe_wait_for_start(struct lx6464es *chip, u32 pipe, int is_capture); int lx_pipe_wait_for_idle(struct lx6464es *chip, u32 pipe, int is_capture); /* low-level stream handling */ int lx_stream_set_format(struct lx6464es *chip, struct snd_pcm_runtime *runtime, u32 pipe, int is_capture); int lx_stream_state(struct lx6464es *chip, u32 pipe, int is_capture, int *rstate); int lx_stream_sample_position(struct lx6464es *chip, u32 pipe, int is_capture, u64 *r_bytepos); int lx_stream_set_state(struct lx6464es *chip, u32 pipe, int is_capture, enum stream_state_t state); static inline int lx_stream_start(struct lx6464es *chip, u32 pipe, int is_capture) { … } static inline int lx_stream_pause(struct lx6464es *chip, u32 pipe, int is_capture) { … } static inline int lx_stream_stop(struct lx6464es *chip, u32 pipe, int is_capture) { … } /* low-level buffer handling */ int lx_buffer_ask(struct lx6464es *chip, u32 pipe, int is_capture, u32 *r_needed, u32 *r_freed, u32 *size_array); int lx_buffer_give(struct lx6464es *chip, u32 pipe, int is_capture, u32 buffer_size, u32 buf_address_lo, u32 buf_address_hi, u32 *r_buffer_index); int lx_buffer_free(struct lx6464es *chip, u32 pipe, int is_capture, u32 *r_buffer_size); int lx_buffer_cancel(struct lx6464es *chip, u32 pipe, int is_capture, u32 buffer_index); /* low-level gain/peak handling */ int lx_level_unmute(struct lx6464es *chip, int is_capture, int unmute); int lx_level_peaks(struct lx6464es *chip, int is_capture, int channels, u32 *r_levels); /* interrupt handling */ irqreturn_t lx_interrupt(int irq, void *dev_id); irqreturn_t lx_threaded_irq(int irq, void *dev_id); void lx_irq_enable(struct lx6464es *chip); void lx_irq_disable(struct lx6464es *chip); /* Stream Format Header Defines (for LIN and IEEE754) */ #define HEADER_FMT_BASE … #define HEADER_FMT_BASE_LIN … #define HEADER_FMT_BASE_FLOAT … #define HEADER_FMT_MONO … #define HEADER_FMT_INTEL … #define HEADER_FMT_16BITS … #define HEADER_FMT_24BITS … #define HEADER_FMT_UPTO11 … #define HEADER_FMT_UPTO32 … #define BIT_FMP_HEADER … #define BIT_FMP_SD … #define BIT_FMP_MULTICHANNEL … #define START_STATE … #define PAUSE_STATE … /* from PcxAll_e.h */ /* Start/Pause condition for pipes (PCXStartPipe, PCXPausePipe) */ #define START_PAUSE_IMMEDIATE … #define START_PAUSE_ON_SYNCHRO … #define START_PAUSE_ON_TIME_CODE … /* Pipe / Stream state */ #define START_STATE … #define PAUSE_STATE … static inline void unpack_pointer(dma_addr_t ptr, u32 *r_low, u32 *r_high) { … } #endif /* LX_CORE_H */
Codebase Browser
linux