drivers/staging/brcm80211/brcmfmac/bcmsdbus.h

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef _sdio_api_h_
  18 #define _sdio_api_h_
  19
  20 #define SDIOH_API_RC_SUCCESS                          (0x00)
  21 #define SDIOH_API_RC_FAIL                             (0x01)
  22 #define SDIOH_API_SUCCESS(status) (status == 0)
  23
  24 #define SDIOH_READ              0       /* Read request */
  25 #define SDIOH_WRITE             1       /* Write request */
  26
  27 #define SDIOH_DATA_FIX          0       /* Fixed addressing */
  28 #define SDIOH_DATA_INC          1       /* Incremental addressing */
  29
  30 #define SDIOH_CMD_TYPE_NORMAL   0       /* Normal command */
  31 #define SDIOH_CMD_TYPE_APPEND   1       /* Append command */
  32 #define SDIOH_CMD_TYPE_CUTTHRU  2       /* Cut-through command */
  33
  34 #define SDIOH_DATA_PIO          0       /* PIO mode */
  35 #define SDIOH_DATA_DMA          1       /* DMA mode */
  36
  37 typedef int SDIOH_API_RC;
  38
  39 /* SDio Host structure */
  40 typedef struct sdioh_info sdioh_info_t;
  41
  42 /* callback function, taking one arg */
  43 typedef void (*sdioh_cb_fn_t) (void *);
  44
  45 /* attach, return handler on success, NULL if failed.
  46  *  The handler shall be provided by all subsequent calls. No local cache
  47  *  cfghdl points to the starting address of pci device mapped memory
  48  */
  49 extern sdioh_info_t *sdioh_attach(void *cfghdl, uint irq);
  50 extern SDIOH_API_RC sdioh_detach(sdioh_info_t *si);
  51 extern SDIOH_API_RC sdioh_interrupt_register(sdioh_info_t *si,
  52                                              sdioh_cb_fn_t fn, void *argh);
  53 extern SDIOH_API_RC sdioh_interrupt_deregister(sdioh_info_t *si);
  54
  55 /* query whether SD interrupt is enabled or not */
  56 extern SDIOH_API_RC sdioh_interrupt_query(sdioh_info_t *si, bool *onoff);
  57
  58 /* enable or disable SD interrupt */
  59 extern SDIOH_API_RC sdioh_interrupt_set(sdioh_info_t *si, bool enable_disable);
  60
  61 #if defined(DHD_DEBUG)
  62 extern bool sdioh_interrupt_pending(sdioh_info_t *si);
  63 #endif
  64
  65 extern int sdioh_claim_host_and_lock(sdioh_info_t *si);
  66 extern int sdioh_release_host_and_unlock(sdioh_info_t *si);
  67
  68 /* read or write one byte using cmd52 */
  69 extern SDIOH_API_RC sdioh_request_byte(sdioh_info_t *si, uint rw, uint fnc,
  70                                        uint addr, u8 *byte);
  71
  72 /* read or write 2/4 bytes using cmd53 */
  73 extern SDIOH_API_RC sdioh_request_word(sdioh_info_t *si, uint cmd_type,
  74                                        uint rw, uint fnc, uint addr,
  75                                        u32 *word, uint nbyte);
  76
  77 /* read or write any buffer using cmd53 */
  78 extern SDIOH_API_RC sdioh_request_buffer(sdioh_info_t *si, uint pio_dma,
  79                                          uint fix_inc, uint rw, uint fnc_num,
  80                                          u32 addr, uint regwidth,
  81                                          u32 buflen, u8 *buffer,
  82                                          struct sk_buff *pkt);
  83
  84 /* get cis data */
  85 extern SDIOH_API_RC sdioh_cis_read(sdioh_info_t *si, uint fuc, u8 *cis,
  86                                    u32 length);
  87
  88 extern SDIOH_API_RC sdioh_cfg_read(sdioh_info_t *si, uint fuc, u32 addr,
  89                                    u8 *data);
  90 extern SDIOH_API_RC sdioh_cfg_write(sdioh_info_t *si, uint fuc, u32 addr,
  91                                     u8 *data);
  92
  93 /* query number of io functions */
  94 extern uint sdioh_query_iofnum(sdioh_info_t *si);
  95
  96 /* handle iovars */
  97 extern int sdioh_iovar_op(sdioh_info_t *si, const char *name,
  98                           void *params, int plen, void *arg, int len, bool set);
  99
 100 /* Issue abort to the specified function and clear controller as needed */
 101 extern int sdioh_abort(sdioh_info_t *si, uint fnc);
 102
 103 /* Start and Stop SDIO without re-enumerating the SD card. */
 104 extern int sdioh_start(sdioh_info_t *si, int stage);
 105 extern int sdioh_stop(sdioh_info_t *si);
 106
 107 /* Reset and re-initialize the device */
 108 extern int sdioh_sdio_reset(sdioh_info_t *si);
 109
 110 /* Helper function */
 111 void *bcmsdh_get_sdioh(bcmsdh_info_t *sdh);
 112
 113 #endif                          /* _sdio_api_h_ */