2 * Copyright (c) 2010 Broadcom Corporation
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.
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.
17 #ifndef BRCMFMAC_SDIO_H
18 #define BRCMFMAC_SDIO_H
20 #include <linux/skbuff.h>
21 #include <linux/firmware.h>
28 #define SDIOD_FBR_SIZE 0x100
31 #define SDIO_FUNC_ENABLE_1 0x02
32 #define SDIO_FUNC_ENABLE_2 0x04
35 #define SDIO_FUNC_READY_1 0x02
36 #define SDIO_FUNC_READY_2 0x04
39 #define INTR_STATUS_FUNC1 0x2
40 #define INTR_STATUS_FUNC2 0x4
42 /* Maximum number of I/O funcs */
43 #define SDIOD_MAX_IOFUNCS 7
45 /* mask of register map */
46 #define REG_F0_REG_MASK 0x7FF
47 #define REG_F1_MISC_MASK 0x1FFFF
49 /* as of sdiod rev 0, supports 3 functions */
50 #define SBSDIO_NUM_FUNCTION 3
52 /* function 0 vendor specific CCCR registers */
53 #define SDIO_CCCR_BRCM_CARDCAP 0xf0
54 #define SDIO_CCCR_BRCM_CARDCAP_CMD14_SUPPORT 0x02
55 #define SDIO_CCCR_BRCM_CARDCAP_CMD14_EXT 0x04
56 #define SDIO_CCCR_BRCM_CARDCAP_CMD_NODEC 0x08
57 #define SDIO_CCCR_BRCM_CARDCTRL 0xf1
58 #define SDIO_CCCR_BRCM_CARDCTRL_WLANRESET 0x02
59 #define SDIO_CCCR_BRCM_SEPINT 0xf2
61 #define SDIO_SEPINT_MASK 0x01
62 #define SDIO_SEPINT_OE 0x02
63 #define SDIO_SEPINT_ACT_HI 0x04
65 /* function 1 miscellaneous registers */
67 /* sprom command and status */
68 #define SBSDIO_SPROM_CS 0x10000
69 /* sprom info register */
70 #define SBSDIO_SPROM_INFO 0x10001
71 /* sprom indirect access data byte 0 */
72 #define SBSDIO_SPROM_DATA_LOW 0x10002
73 /* sprom indirect access data byte 1 */
74 #define SBSDIO_SPROM_DATA_HIGH 0x10003
75 /* sprom indirect access addr byte 0 */
76 #define SBSDIO_SPROM_ADDR_LOW 0x10004
78 #define SBSDIO_GPIO_SELECT 0x10005
80 #define SBSDIO_GPIO_OUT 0x10006
82 #define SBSDIO_GPIO_EN 0x10007
83 /* rev < 7, watermark for sdio device */
84 #define SBSDIO_WATERMARK 0x10008
85 /* control busy signal generation */
86 #define SBSDIO_DEVICE_CTL 0x10009
88 /* SB Address Window Low (b15) */
89 #define SBSDIO_FUNC1_SBADDRLOW 0x1000A
90 /* SB Address Window Mid (b23:b16) */
91 #define SBSDIO_FUNC1_SBADDRMID 0x1000B
92 /* SB Address Window High (b31:b24) */
93 #define SBSDIO_FUNC1_SBADDRHIGH 0x1000C
94 /* Frame Control (frame term/abort) */
95 #define SBSDIO_FUNC1_FRAMECTRL 0x1000D
96 /* ChipClockCSR (ALP/HT ctl/status) */
97 #define SBSDIO_FUNC1_CHIPCLKCSR 0x1000E
98 /* SdioPullUp (on cmd, d0-d2) */
99 #define SBSDIO_FUNC1_SDIOPULLUP 0x1000F
100 /* Write Frame Byte Count Low */
101 #define SBSDIO_FUNC1_WFRAMEBCLO 0x10019
102 /* Write Frame Byte Count High */
103 #define SBSDIO_FUNC1_WFRAMEBCHI 0x1001A
104 /* Read Frame Byte Count Low */
105 #define SBSDIO_FUNC1_RFRAMEBCLO 0x1001B
106 /* Read Frame Byte Count High */
107 #define SBSDIO_FUNC1_RFRAMEBCHI 0x1001C
108 /* MesBusyCtl (rev 11) */
109 #define SBSDIO_FUNC1_MESBUSYCTRL 0x1001D
110 /* Sdio Core Rev 12 */
111 #define SBSDIO_FUNC1_WAKEUPCTRL 0x1001E
112 #define SBSDIO_FUNC1_WCTRL_ALPWAIT_MASK 0x1
113 #define SBSDIO_FUNC1_WCTRL_ALPWAIT_SHIFT 0
114 #define SBSDIO_FUNC1_WCTRL_HTWAIT_MASK 0x2
115 #define SBSDIO_FUNC1_WCTRL_HTWAIT_SHIFT 1
116 #define SBSDIO_FUNC1_SLEEPCSR 0x1001F
117 #define SBSDIO_FUNC1_SLEEPCSR_KSO_MASK 0x1
118 #define SBSDIO_FUNC1_SLEEPCSR_KSO_SHIFT 0
119 #define SBSDIO_FUNC1_SLEEPCSR_KSO_EN 1
120 #define SBSDIO_FUNC1_SLEEPCSR_DEVON_MASK 0x2
121 #define SBSDIO_FUNC1_SLEEPCSR_DEVON_SHIFT 1
123 #define SBSDIO_FUNC1_MISC_REG_START 0x10000 /* f1 misc register start */
124 #define SBSDIO_FUNC1_MISC_REG_LIMIT 0x1001F /* f1 misc register end */
126 /* function 1 OCP space */
128 /* sb offset addr is <= 15 bits, 32k */
129 #define SBSDIO_SB_OFT_ADDR_MASK 0x07FFF
130 #define SBSDIO_SB_OFT_ADDR_LIMIT 0x08000
131 /* with b15, maps to 32-bit SB access */
132 #define SBSDIO_SB_ACCESS_2_4B_FLAG 0x08000
134 /* valid bits in SBSDIO_FUNC1_SBADDRxxx regs */
136 #define SBSDIO_SBADDRLOW_MASK 0x80 /* Valid bits in SBADDRLOW */
137 #define SBSDIO_SBADDRMID_MASK 0xff /* Valid bits in SBADDRMID */
138 #define SBSDIO_SBADDRHIGH_MASK 0xffU /* Valid bits in SBADDRHIGH */
139 /* Address bits from SBADDR regs */
140 #define SBSDIO_SBWINDOW_MASK 0xffff8000
142 #define SDIOH_READ 0 /* Read request */
143 #define SDIOH_WRITE 1 /* Write request */
145 #define SDIOH_DATA_FIX 0 /* Fixed addressing */
146 #define SDIOH_DATA_INC 1 /* Incremental addressing */
148 /* internal return code */
152 /* Packet alignment for most efficient SDIO (can change based on platform) */
153 #define BRCMF_SDALIGN (1 << 6)
155 /* watchdog polling interval */
156 #define BRCMF_WD_POLL msecs_to_jiffies(10)
159 * enum brcmf_sdiod_state - the state of the bus.
161 * @BRCMF_SDIOD_DOWN: Device can be accessed, no DPC.
162 * @BRCMF_SDIOD_DATA: Ready for data transfers, DPC enabled.
163 * @BRCMF_SDIOD_NOMEDIUM: No medium access to dongle possible.
165 enum brcmf_sdiod_state {
178 struct brcmf_sdiod_freezer;
180 struct brcmf_sdio_dev {
181 struct sdio_func *func[SDIO_MAX_FUNCS];
182 u8 num_funcs; /* Supported funcs on client */
183 u32 sbwad; /* Save backplane window address */
184 struct brcmf_sdio *bus;
186 struct brcmf_bus *bus_if;
187 struct brcmf_mp_device *settings;
188 bool oob_irq_requested;
189 bool sd_irq_requested;
190 bool irq_en; /* irq enable flags */
191 spinlock_t irq_en_lock;
192 bool irq_wake; /* irq wake enable flags */
194 uint max_request_size;
195 ushort max_segment_count;
196 uint max_segment_size;
198 struct sg_table sgtable;
199 char fw_name[BRCMF_FW_NAME_LEN];
200 char nvram_name[BRCMF_FW_NAME_LEN];
202 enum brcmf_sdiod_state state;
203 struct brcmf_sdiod_freezer *freezer;
206 /* sdio core registers */
208 u32 corecontrol; /* 0x00, rev8 */
209 u32 corestatus; /* rev8 */
211 u32 biststatus; /* rev8 */
214 u16 pcmciamesportaladdr; /* 0x010, rev8 */
216 u16 pcmciamesportalmask; /* rev8 */
218 u16 pcmciawrframebc; /* rev8 */
220 u16 pcmciaunderflowtimer; /* rev8 */
224 u32 intstatus; /* 0x020, rev8 */
225 u32 hostintmask; /* rev8 */
226 u32 intmask; /* rev8 */
227 u32 sbintstatus; /* rev8 */
228 u32 sbintmask; /* rev8 */
229 u32 funcintmask; /* rev4 */
231 u32 tosbmailbox; /* 0x040, rev8 */
232 u32 tohostmailbox; /* rev8 */
233 u32 tosbmailboxdata; /* rev8 */
234 u32 tohostmailboxdata; /* rev8 */
236 /* synchronized access to registers in SDIO clock domain */
237 u32 sdioaccess; /* 0x050, rev8 */
240 /* PCMCIA frame control */
241 u8 pcmciaframectrl; /* 0x060, rev8 */
243 u8 pcmciawatermark; /* rev8 */
246 /* interrupt batching control */
247 u32 intrcvlazy; /* 0x100, rev8 */
251 u32 cmd52rd; /* 0x110, rev8 */
252 u32 cmd52wr; /* rev8 */
253 u32 cmd53rd; /* rev8 */
254 u32 cmd53wr; /* rev8 */
255 u32 abort; /* rev8 */
256 u32 datacrcerror; /* rev8 */
257 u32 rdoutofsync; /* rev8 */
258 u32 wroutofsync; /* rev8 */
259 u32 writebusy; /* rev8 */
260 u32 readwait; /* rev8 */
261 u32 readterm; /* rev8 */
262 u32 writeterm; /* rev8 */
264 u32 clockctlstatus; /* rev8 */
267 u32 PAD[128]; /* DMA engines */
269 /* SDIO/PCMCIA CIS region */
270 char cis[512]; /* 0x400-0x5ff, rev6 */
272 /* PCMCIA function control registers */
273 char pcmciafcr[256]; /* 0x600-6ff, rev6 */
276 /* PCMCIA backplane access */
277 u16 backplanecsr; /* 0x76E, rev6 */
278 u16 backplaneaddr0; /* rev6 */
279 u16 backplaneaddr1; /* rev6 */
280 u16 backplaneaddr2; /* rev6 */
281 u16 backplaneaddr3; /* rev6 */
282 u16 backplanedata0; /* rev6 */
283 u16 backplanedata1; /* rev6 */
284 u16 backplanedata2; /* rev6 */
285 u16 backplanedata3; /* rev6 */
288 /* sprom "size" & "blank" info */
289 u16 spromstatus; /* 0x7BE, rev2 */
295 /* Register/deregister interrupt handler. */
296 int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev);
297 void brcmf_sdiod_intr_unregister(struct brcmf_sdio_dev *sdiodev);
299 /* sdio device register access interface */
300 u8 brcmf_sdiod_regrb(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret);
301 u32 brcmf_sdiod_regrl(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret);
302 void brcmf_sdiod_regwb(struct brcmf_sdio_dev *sdiodev, u32 addr, u8 data,
304 void brcmf_sdiod_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr, u32 data,
307 /* Buffer transfer to/from device (client) core via cmd53.
308 * fn: function number
309 * flags: backplane width, address increment, sync/async
310 * buf: pointer to memory data buffer
311 * nbytes: number of bytes to transfer to/from buf
312 * pkt: pointer to packet associated with buf (if any)
313 * complete: callback function for command completion (async only)
314 * handle: handle for completion callback (first arg in callback)
315 * Returns 0 or error code.
316 * NOTE: Async operation is not currently supported.
318 int brcmf_sdiod_send_pkt(struct brcmf_sdio_dev *sdiodev,
319 struct sk_buff_head *pktq);
320 int brcmf_sdiod_send_buf(struct brcmf_sdio_dev *sdiodev, u8 *buf, uint nbytes);
322 int brcmf_sdiod_recv_pkt(struct brcmf_sdio_dev *sdiodev, struct sk_buff *pkt);
323 int brcmf_sdiod_recv_buf(struct brcmf_sdio_dev *sdiodev, u8 *buf, uint nbytes);
324 int brcmf_sdiod_recv_chain(struct brcmf_sdio_dev *sdiodev,
325 struct sk_buff_head *pktq, uint totlen);
329 /* Four-byte target (backplane) width (vs. two-byte) */
330 #define SDIO_REQ_4BYTE 0x1
331 /* Fixed address (FIFO) (vs. incrementing address) */
332 #define SDIO_REQ_FIXED 0x2
334 /* Read/write to memory block (F1, no FIFO) via CMD53 (sync only).
335 * rw: read or write (0/1)
336 * addr: direct SDIO address
337 * buf: pointer to memory data buffer
338 * nbytes: number of bytes to transfer to/from buf
339 * Returns 0 or error code.
341 int brcmf_sdiod_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
342 u8 *data, uint size);
344 /* Issue an abort to the specified function */
345 int brcmf_sdiod_abort(struct brcmf_sdio_dev *sdiodev, uint fn);
346 void brcmf_sdiod_sgtable_alloc(struct brcmf_sdio_dev *sdiodev);
347 void brcmf_sdiod_change_state(struct brcmf_sdio_dev *sdiodev,
348 enum brcmf_sdiod_state state);
349 #ifdef CONFIG_PM_SLEEP
350 bool brcmf_sdiod_freezing(struct brcmf_sdio_dev *sdiodev);
351 void brcmf_sdiod_try_freeze(struct brcmf_sdio_dev *sdiodev);
352 void brcmf_sdiod_freezer_count(struct brcmf_sdio_dev *sdiodev);
353 void brcmf_sdiod_freezer_uncount(struct brcmf_sdio_dev *sdiodev);
355 static inline bool brcmf_sdiod_freezing(struct brcmf_sdio_dev *sdiodev)
359 static inline void brcmf_sdiod_try_freeze(struct brcmf_sdio_dev *sdiodev)
362 static inline void brcmf_sdiod_freezer_count(struct brcmf_sdio_dev *sdiodev)
365 static inline void brcmf_sdiod_freezer_uncount(struct brcmf_sdio_dev *sdiodev)
368 #endif /* CONFIG_PM_SLEEP */
370 struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev);
371 void brcmf_sdio_remove(struct brcmf_sdio *bus);
372 void brcmf_sdio_isr(struct brcmf_sdio *bus);
374 void brcmf_sdio_wd_timer(struct brcmf_sdio *bus, bool active);
375 void brcmf_sdio_wowl_config(struct device *dev, bool enabled);
376 int brcmf_sdio_sleep(struct brcmf_sdio *bus, bool sleep);
377 void brcmf_sdio_trigger_dpc(struct brcmf_sdio *bus);
379 #endif /* BRCMFMAC_SDIO_H */