/* 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 */ #ifndef LX_CORE_H #define LX_CORE_H #include #include "lx_defs.h" #define REG_CRM_NUMBER 12 struct lx6464es; /* low-level register access */ /* dsp register access */ enum { eReg_BASE, eReg_CSM, eReg_CRM1, eReg_CRM2, eReg_CRM3, eReg_CRM4, eReg_CRM5, eReg_CRM6, eReg_CRM7, eReg_CRM8, eReg_CRM9, eReg_CRM10, eReg_CRM11, eReg_CRM12, eReg_ICR, eReg_CVR, eReg_ISR, eReg_RXHTXH, eReg_RXMTXM, eReg_RHLTXL, eReg_RESETDSP, eReg_CSUF, eReg_CSES, eReg_CRESMSB, eReg_CRESLSB, eReg_ADMACESMSB, eReg_ADMACESLSB, eReg_CONFES, eMaxPortLx }; 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 { ePLX_PCICR, ePLX_MBOX0, ePLX_MBOX1, ePLX_MBOX2, ePLX_MBOX3, ePLX_MBOX4, ePLX_MBOX5, ePLX_MBOX6, ePLX_MBOX7, ePLX_L2PCIDB, ePLX_IRQCS, ePLX_CHIPSC, eMaxPort }; 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 { u16 cmd_len; /* length of the command to send (WORDs) */ u16 stat_len; /* length of the status received (WORDs) */ u16 dsp_stat; /* status type, RMP_SSIZE_XXX */ u16 cmd_idx; /* index of the command */ u32 cmd[REG_CRM_NUMBER]; u32 stat[REG_CRM_NUMBER]; }; /* 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) { return lx_stream_set_state(chip, pipe, is_capture, SSTATE_RUN); } static inline int lx_stream_pause(struct lx6464es *chip, u32 pipe, int is_capture) { return lx_stream_set_state(chip, pipe, is_capture, SSTATE_PAUSE); } static inline int lx_stream_stop(struct lx6464es *chip, u32 pipe, int is_capture) { return lx_stream_set_state(chip, pipe, is_capture, SSTATE_STOP); } /* 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 HEADER_FMT_BASE_LIN #define HEADER_FMT_BASE_LIN 0xFED00000 #define HEADER_FMT_BASE_FLOAT 0xFAD00000 #define HEADER_FMT_MONO 0x00000080 /* bit 23 in header_lo. WARNING: old * bit 22 is ignored in float * format */ #define HEADER_FMT_INTEL 0x00008000 #define HEADER_FMT_16BITS 0x00002000 #define HEADER_FMT_24BITS 0x00004000 #define HEADER_FMT_UPTO11 0x00000200 /* frequency is less or equ. to 11k. * */ #define HEADER_FMT_UPTO32 0x00000100 /* frequency is over 11k and less * then 32k.*/ #define BIT_FMP_HEADER 23 #define BIT_FMP_SD 22 #define BIT_FMP_MULTICHANNEL 19 #define START_STATE 1 #define PAUSE_STATE 0 /* from PcxAll_e.h */ /* Start/Pause condition for pipes (PCXStartPipe, PCXPausePipe) */ #define START_PAUSE_IMMEDIATE 0 #define START_PAUSE_ON_SYNCHRO 1 #define START_PAUSE_ON_TIME_CODE 2 /* Pipe / Stream state */ #define START_STATE 1 #define PAUSE_STATE 0 static inline void unpack_pointer(dma_addr_t ptr, u32 *r_low, u32 *r_high) { *r_low = (u32)(ptr & 0xffffffff); #if BITS_PER_LONG == 32 *r_high = 0; #else *r_high = (u32)((u64)ptr>>32); #endif } #endif /* LX_CORE_H */