sound/pci/lx6464es/lx_core.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /* -*- linux-c -*- *
   3  *
   4  * ALSA driver for the digigram lx6464es interface
   5  * low-level interface
   6  *
   7  * Copyright (c) 2009 Tim Blechmann <tim@klingt.org>
   8  */
   9
  10 #ifndef LX_CORE_H
  11 #define LX_CORE_H
  12
  13 #include <linux/interrupt.h>
  14
  15 #include "lx_defs.h"
  16
  17 #define REG_CRM_NUMBER          12
  18
  19 struct lx6464es;
  20
  21 /* low-level register access */
  22
  23 /* dsp register access */
  24 enum {
  25         eReg_BASE,
  26         eReg_CSM,
  27         eReg_CRM1,
  28         eReg_CRM2,
  29         eReg_CRM3,
  30         eReg_CRM4,
  31         eReg_CRM5,
  32         eReg_CRM6,
  33         eReg_CRM7,
  34         eReg_CRM8,
  35         eReg_CRM9,
  36         eReg_CRM10,
  37         eReg_CRM11,
  38         eReg_CRM12,
  39
  40         eReg_ICR,
  41         eReg_CVR,
  42         eReg_ISR,
  43         eReg_RXHTXH,
  44         eReg_RXMTXM,
  45         eReg_RHLTXL,
  46         eReg_RESETDSP,
  47
  48         eReg_CSUF,
  49         eReg_CSES,
  50         eReg_CRESMSB,
  51         eReg_CRESLSB,
  52         eReg_ADMACESMSB,
  53         eReg_ADMACESLSB,
  54         eReg_CONFES,
  55
  56         eMaxPortLx
  57 };
  58
  59 unsigned long lx_dsp_reg_read(struct lx6464es *chip, int port);
  60 void lx_dsp_reg_write(struct lx6464es *chip, int port, unsigned data);
  61
  62 /* plx register access */
  63 enum {
  64     ePLX_PCICR,
  65
  66     ePLX_MBOX0,
  67     ePLX_MBOX1,
  68     ePLX_MBOX2,
  69     ePLX_MBOX3,
  70     ePLX_MBOX4,
  71     ePLX_MBOX5,
  72     ePLX_MBOX6,
  73     ePLX_MBOX7,
  74
  75     ePLX_L2PCIDB,
  76     ePLX_IRQCS,
  77     ePLX_CHIPSC,
  78
  79     eMaxPort
  80 };
  81
  82 unsigned long lx_plx_reg_read(struct lx6464es *chip, int port);
  83 void lx_plx_reg_write(struct lx6464es *chip, int port, u32 data);
  84
  85 /* rhm */
  86 struct lx_rmh {
  87         u16     cmd_len;        /* length of the command to send (WORDs) */
  88         u16     stat_len;       /* length of the status received (WORDs) */
  89         u16     dsp_stat;       /* status type, RMP_SSIZE_XXX */
  90         u16     cmd_idx;        /* index of the command */
  91         u32     cmd[REG_CRM_NUMBER];
  92         u32     stat[REG_CRM_NUMBER];
  93 };
  94
  95
  96 /* low-level dsp access */
  97 int lx_dsp_get_version(struct lx6464es *chip, u32 *rdsp_version);
  98 int lx_dsp_get_clock_frequency(struct lx6464es *chip, u32 *rfreq);
  99 int lx_dsp_set_granularity(struct lx6464es *chip, u32 gran);
 100 int lx_dsp_read_async_events(struct lx6464es *chip, u32 *data);
 101 int lx_dsp_get_mac(struct lx6464es *chip);
 102
 103
 104 /* low-level pipe handling */
 105 int lx_pipe_allocate(struct lx6464es *chip, u32 pipe, int is_capture,
 106                      int channels);
 107 int lx_pipe_release(struct lx6464es *chip, u32 pipe, int is_capture);
 108 int lx_pipe_sample_count(struct lx6464es *chip, u32 pipe, int is_capture,
 109                          u64 *rsample_count);
 110 int lx_pipe_state(struct lx6464es *chip, u32 pipe, int is_capture, u16 *rstate);
 111 int lx_pipe_stop(struct lx6464es *chip, u32 pipe, int is_capture);
 112 int lx_pipe_start(struct lx6464es *chip, u32 pipe, int is_capture);
 113 int lx_pipe_pause(struct lx6464es *chip, u32 pipe, int is_capture);
 114
 115 int lx_pipe_wait_for_start(struct lx6464es *chip, u32 pipe, int is_capture);
 116 int lx_pipe_wait_for_idle(struct lx6464es *chip, u32 pipe, int is_capture);
 117
 118 /* low-level stream handling */
 119 int lx_stream_set_format(struct lx6464es *chip, struct snd_pcm_runtime *runtime,
 120                          u32 pipe, int is_capture);
 121 int lx_stream_state(struct lx6464es *chip, u32 pipe, int is_capture,
 122                     int *rstate);
 123 int lx_stream_sample_position(struct lx6464es *chip, u32 pipe, int is_capture,
 124                               u64 *r_bytepos);
 125
 126 int lx_stream_set_state(struct lx6464es *chip, u32 pipe,
 127                         int is_capture, enum stream_state_t state);
 128
 129 static inline int lx_stream_start(struct lx6464es *chip, u32 pipe,
 130                                   int is_capture)
 131 {
 132         snd_printdd("->lx_stream_start\n");
 133         return lx_stream_set_state(chip, pipe, is_capture, SSTATE_RUN);
 134 }
 135
 136 static inline int lx_stream_pause(struct lx6464es *chip, u32 pipe,
 137                                   int is_capture)
 138 {
 139         snd_printdd("->lx_stream_pause\n");
 140         return lx_stream_set_state(chip, pipe, is_capture, SSTATE_PAUSE);
 141 }
 142
 143 static inline int lx_stream_stop(struct lx6464es *chip, u32 pipe,
 144                                  int is_capture)
 145 {
 146         snd_printdd("->lx_stream_stop\n");
 147         return lx_stream_set_state(chip, pipe, is_capture, SSTATE_STOP);
 148 }
 149
 150 /* low-level buffer handling */
 151 int lx_buffer_ask(struct lx6464es *chip, u32 pipe, int is_capture,
 152                   u32 *r_needed, u32 *r_freed, u32 *size_array);
 153 int lx_buffer_give(struct lx6464es *chip, u32 pipe, int is_capture,
 154                    u32 buffer_size, u32 buf_address_lo, u32 buf_address_hi,
 155                    u32 *r_buffer_index);
 156 int lx_buffer_free(struct lx6464es *chip, u32 pipe, int is_capture,
 157                    u32 *r_buffer_size);
 158 int lx_buffer_cancel(struct lx6464es *chip, u32 pipe, int is_capture,
 159                      u32 buffer_index);
 160
 161 /* low-level gain/peak handling */
 162 int lx_level_unmute(struct lx6464es *chip, int is_capture, int unmute);
 163 int lx_level_peaks(struct lx6464es *chip, int is_capture, int channels,
 164                    u32 *r_levels);
 165
 166
 167 /* interrupt handling */
 168 irqreturn_t lx_interrupt(int irq, void *dev_id);
 169 irqreturn_t lx_threaded_irq(int irq, void *dev_id);
 170 void lx_irq_enable(struct lx6464es *chip);
 171 void lx_irq_disable(struct lx6464es *chip);
 172
 173
 174 /* Stream Format Header Defines (for LIN and IEEE754) */
 175 #define HEADER_FMT_BASE         HEADER_FMT_BASE_LIN
 176 #define HEADER_FMT_BASE_LIN     0xFED00000
 177 #define HEADER_FMT_BASE_FLOAT   0xFAD00000
 178 #define HEADER_FMT_MONO         0x00000080 /* bit 23 in header_lo. WARNING: old
 179                                             * bit 22 is ignored in float
 180                                             * format */
 181 #define HEADER_FMT_INTEL        0x00008000
 182 #define HEADER_FMT_16BITS       0x00002000
 183 #define HEADER_FMT_24BITS       0x00004000
 184 #define HEADER_FMT_UPTO11       0x00000200 /* frequency is less or equ. to 11k.
 185                                             * */
 186 #define HEADER_FMT_UPTO32       0x00000100 /* frequency is over 11k and less
 187                                             * then 32k.*/
 188
 189
 190 #define BIT_FMP_HEADER          23
 191 #define BIT_FMP_SD              22
 192 #define BIT_FMP_MULTICHANNEL    19
 193
 194 #define START_STATE             1
 195 #define PAUSE_STATE             0
 196
 197
 198
 199
 200
 201 /* from PcxAll_e.h */
 202 /* Start/Pause condition for pipes (PCXStartPipe, PCXPausePipe) */
 203 #define START_PAUSE_IMMEDIATE           0
 204 #define START_PAUSE_ON_SYNCHRO          1
 205 #define START_PAUSE_ON_TIME_CODE        2
 206
 207
 208 /* Pipe / Stream state */
 209 #define START_STATE             1
 210 #define PAUSE_STATE             0
 211
 212 static inline void unpack_pointer(dma_addr_t ptr, u32 *r_low, u32 *r_high)
 213 {
 214         *r_low = (u32)(ptr & 0xffffffff);
 215 #if BITS_PER_LONG == 32
 216         *r_high = 0;
 217 #else
 218         *r_high = (u32)((u64)ptr>>32);
 219 #endif
 220 }
 221
 222 #endif /* LX_CORE_H */