2 * SDIO host client driver interface of Broadcom HNBU
3 * export functions to client drivers
4 * abstract OS and BUS specific details of SDIO
6 * $ Copyright Open License Broadcom Corporation $
8 * $Id: bcmsdh.h 414953 2013-07-26 17:36:27Z $
18 #define BCMSDH_ERROR_VAL 0x0001 /* Error */
19 #define BCMSDH_INFO_VAL 0x0002 /* Info */
20 extern const uint bcmsdh_msglevel;
22 #define BCMSDH_ERROR(x)
23 #define BCMSDH_INFO(x)
25 #if (defined(BCMSDIOH_STD) || defined(BCMSDIOH_BCM) || defined(BCMSDIOH_SPI))
26 #define BCMSDH_ADAPTER
27 #endif /* BCMSDIO && (BCMSDIOH_STD || BCMSDIOH_BCM || BCMSDIOH_SPI) */
29 /* forward declarations */
30 typedef struct bcmsdh_info bcmsdh_info_t;
31 typedef void (*bcmsdh_cb_fn_t)(void *);
33 /* Attach and build an interface to the underlying SD host driver.
34 * - Allocates resources (structs, arrays, mem, OS handles, etc) needed by bcmsdh.
35 * - Returns the bcmsdh handle and virtual address base for register access.
36 * The returned handle should be used in all subsequent calls, but the bcmsh
37 * implementation may maintain a single "default" handle (e.g. the first or
38 * most recent one) to enable single-instance implementations to pass NULL.
40 extern bcmsdh_info_t *bcmsdh_attach(osl_t *osh, void *cfghdl, void **regsva, uint irq);
42 /* Detach - freeup resources allocated in attach */
43 extern int bcmsdh_detach(osl_t *osh, void *sdh);
45 /* Query if SD device interrupts are enabled */
46 extern bool bcmsdh_intr_query(void *sdh);
48 /* Enable/disable SD interrupt */
49 extern int bcmsdh_intr_enable(void *sdh);
50 extern int bcmsdh_intr_disable(void *sdh);
52 /* Register/deregister device interrupt handler. */
53 extern int bcmsdh_intr_reg(void *sdh, bcmsdh_cb_fn_t fn, void *argh);
54 extern int bcmsdh_intr_dereg(void *sdh);
55 /* Enable/disable SD card interrupt forward */
56 extern void bcmsdh_intr_forward(void *sdh, bool pass);
58 #if defined(DHD_DEBUG)
59 /* Query pending interrupt status from the host controller */
60 extern bool bcmsdh_intr_pending(void *sdh);
63 /* Register a callback to be called if and when bcmsdh detects
64 * device removal. No-op in the case of non-removable/hardwired devices.
66 extern int bcmsdh_devremove_reg(void *sdh, bcmsdh_cb_fn_t fn, void *argh);
68 /* Access SDIO address space (e.g. CCCR) using CMD52 (single-byte interface).
70 * addr: unmodified SDIO-space address
71 * data: data byte to write
72 * err: pointer to error code (or NULL)
74 extern uint8 bcmsdh_cfg_read(void *sdh, uint func, uint32 addr, int *err);
75 extern void bcmsdh_cfg_write(void *sdh, uint func, uint32 addr, uint8 data, int *err);
77 /* Read/Write 4bytes from/to cfg space */
78 extern uint32 bcmsdh_cfg_read_word(void *sdh, uint fnc_num, uint32 addr, int *err);
79 extern void bcmsdh_cfg_write_word(void *sdh, uint fnc_num, uint32 addr, uint32 data, int *err);
81 /* Read CIS content for specified function.
82 * fn: function whose CIS is being requested (0 is common CIS)
83 * cis: pointer to memory location to place results
84 * length: number of bytes to read
85 * Internally, this routine uses the values from the cis base regs (0x9-0xB)
86 * to form an SDIO-space address to read the data from.
88 extern int bcmsdh_cis_read(void *sdh, uint func, uint8 *cis, uint length);
90 /* Synchronous access to device (client) core registers via CMD53 to F1.
91 * addr: backplane address (i.e. >= regsva from attach)
92 * size: register width in bytes (2 or 4)
93 * data: data for register write
95 extern uint32 bcmsdh_reg_read(void *sdh, uint32 addr, uint size);
96 extern uint32 bcmsdh_reg_write(void *sdh, uint32 addr, uint size, uint32 data);
98 /* set sb address window */
99 extern int bcmsdhsdio_set_sbaddr_window(void *sdh, uint32 address, bool force_set);
101 /* Indicate if last reg read/write failed */
102 extern bool bcmsdh_regfail(void *sdh);
104 /* Buffer transfer to/from device (client) core via cmd53.
105 * fn: function number
106 * addr: backplane address (i.e. >= regsva from attach)
107 * flags: backplane width, address increment, sync/async
108 * buf: pointer to memory data buffer
109 * nbytes: number of bytes to transfer to/from buf
110 * pkt: pointer to packet associated with buf (if any)
111 * complete: callback function for command completion (async only)
112 * handle: handle for completion callback (first arg in callback)
113 * Returns 0 or error code.
114 * NOTE: Async operation is not currently supported.
116 typedef void (*bcmsdh_cmplt_fn_t)(void *handle, int status, bool sync_waiting);
117 extern int bcmsdh_send_buf(void *sdh, uint32 addr, uint fn, uint flags,
118 uint8 *buf, uint nbytes, void *pkt,
119 bcmsdh_cmplt_fn_t complete_fn, void *handle);
120 extern int bcmsdh_recv_buf(void *sdh, uint32 addr, uint fn, uint flags,
121 uint8 *buf, uint nbytes, void *pkt,
122 bcmsdh_cmplt_fn_t complete_fn, void *handle);
124 extern void bcmsdh_glom_post(void *sdh, uint8 *frame, void *pkt, uint len);
125 extern void bcmsdh_glom_clear(void *sdh);
126 extern uint bcmsdh_set_mode(void *sdh, uint mode);
127 extern bool bcmsdh_glom_enabled(void);
129 #define SDIO_REQ_4BYTE 0x1 /* Four-byte target (backplane) width (vs. two-byte) */
130 #define SDIO_REQ_FIXED 0x2 /* Fixed address (FIFO) (vs. incrementing address) */
131 #define SDIO_REQ_ASYNC 0x4 /* Async request (vs. sync request) */
132 #define SDIO_BYTE_MODE 0x8 /* Byte mode request(non-block mode) */
134 /* Pending (non-error) return code */
135 #define BCME_PENDING 1
137 /* Read/write to memory block (F1, no FIFO) via CMD53 (sync only).
138 * rw: read or write (0/1)
139 * addr: direct SDIO address
140 * buf: pointer to memory data buffer
141 * nbytes: number of bytes to transfer to/from buf
142 * Returns 0 or error code.
144 extern int bcmsdh_rwdata(void *sdh, uint rw, uint32 addr, uint8 *buf, uint nbytes);
146 /* Issue an abort to the specified function */
147 extern int bcmsdh_abort(void *sdh, uint fn);
149 /* Start SDIO Host Controller communication */
150 extern int bcmsdh_start(void *sdh, int stage);
152 /* Stop SDIO Host Controller communication */
153 extern int bcmsdh_stop(void *sdh);
155 /* Wait system lock free */
156 extern int bcmsdh_waitlockfree(void *sdh);
158 /* Returns the "Device ID" of target device on the SDIO bus. */
159 extern int bcmsdh_query_device(void *sdh);
161 /* Returns the number of IO functions reported by the device */
162 extern uint bcmsdh_query_iofnum(void *sdh);
164 /* Miscellaneous knob tweaker. */
165 extern int bcmsdh_iovar_op(void *sdh, const char *name,
166 void *params, int plen, void *arg, int len, bool set);
168 /* Reset and reinitialize the device */
169 extern int bcmsdh_reset(bcmsdh_info_t *sdh);
171 /* helper functions */
173 extern void *bcmsdh_get_sdioh(bcmsdh_info_t *sdh);
175 /* callback functions */
177 /* attach to device */
178 void *(*attach)(uint16 vend_id, uint16 dev_id, uint16 bus, uint16 slot,
179 uint16 func, uint bustype, void * regsva, osl_t * osh,
181 /* detach from device */
182 void (*detach)(void *ch);
185 /* platform specific/high level functions */
186 extern int bcmsdh_register(bcmsdh_driver_t *driver);
187 extern void bcmsdh_unregister(void);
188 extern bool bcmsdh_chipmatch(uint16 vendor, uint16 device);
189 extern void bcmsdh_device_remove(void * sdh);
191 extern int bcmsdh_reg_sdio_notify(void* semaphore);
192 extern void bcmsdh_unreg_sdio_notify(void);
194 extern int bcmsdh_set_drvdata(void * dhdp);
196 #if defined(OOB_INTR_ONLY)
197 extern int bcmsdh_register_oob_intr(void * dhdp);
198 extern void bcmsdh_unregister_oob_intr(void);
199 extern void bcmsdh_oob_intr_set(bool enable);
200 extern bool bcmsdh_is_oob_intr_registered(void);
203 /* Function to pass device-status bits to DHD. */
204 extern uint32 bcmsdh_get_dstatus(void *sdh);
206 /* Function to return current window addr */
207 extern uint32 bcmsdh_cur_sbwad(void *sdh);
209 /* Function to pass chipid and rev to lower layers for controlling pr's */
210 extern void bcmsdh_chipinfo(void *sdh, uint32 chip, uint32 chiprev);
213 extern int bcmsdh_sleep(void *sdh, bool enab);
216 extern int bcmsdh_gpio_init(void *sd);
217 extern bool bcmsdh_gpioin(void *sd, uint32 gpio);
218 extern int bcmsdh_gpioouten(void *sd, uint32 gpio);
219 extern int bcmsdh_gpioout(void *sd, uint32 gpio, bool enab);
221 #endif /* _bcmsdh_h_ */