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path: root/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
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Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h')
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h252
1 files changed, 252 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
new file mode 100644
index 000000000000..726fa8981113
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
@@ -0,0 +1,252 @@
+/*
+ * Copyright (c) 2010 Broadcom Corporation
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _BRCM_SDH_H_
+#define _BRCM_SDH_H_
+
+#include <linux/skbuff.h>
+
+#define SDIO_FUNC_0 0
+#define SDIO_FUNC_1 1
+#define SDIO_FUNC_2 2
+
+#define SDIOD_FBR_SIZE 0x100
+
+/* io_en */
+#define SDIO_FUNC_ENABLE_1 0x02
+#define SDIO_FUNC_ENABLE_2 0x04
+
+/* io_rdys */
+#define SDIO_FUNC_READY_1 0x02
+#define SDIO_FUNC_READY_2 0x04
+
+/* intr_status */
+#define INTR_STATUS_FUNC1 0x2
+#define INTR_STATUS_FUNC2 0x4
+
+/* Maximum number of I/O funcs */
+#define SDIOD_MAX_IOFUNCS 7
+
+/* as of sdiod rev 0, supports 3 functions */
+#define SBSDIO_NUM_FUNCTION 3
+
+/* function 1 miscellaneous registers */
+
+/* sprom command and status */
+#define SBSDIO_SPROM_CS 0x10000
+/* sprom info register */
+#define SBSDIO_SPROM_INFO 0x10001
+/* sprom indirect access data byte 0 */
+#define SBSDIO_SPROM_DATA_LOW 0x10002
+/* sprom indirect access data byte 1 */
+#define SBSDIO_SPROM_DATA_HIGH 0x10003
+/* sprom indirect access addr byte 0 */
+#define SBSDIO_SPROM_ADDR_LOW 0x10004
+/* sprom indirect access addr byte 0 */
+#define SBSDIO_SPROM_ADDR_HIGH 0x10005
+/* xtal_pu (gpio) output */
+#define SBSDIO_CHIP_CTRL_DATA 0x10006
+/* xtal_pu (gpio) enable */
+#define SBSDIO_CHIP_CTRL_EN 0x10007
+/* rev < 7, watermark for sdio device */
+#define SBSDIO_WATERMARK 0x10008
+/* control busy signal generation */
+#define SBSDIO_DEVICE_CTL 0x10009
+
+/* SB Address Window Low (b15) */
+#define SBSDIO_FUNC1_SBADDRLOW 0x1000A
+/* SB Address Window Mid (b23:b16) */
+#define SBSDIO_FUNC1_SBADDRMID 0x1000B
+/* SB Address Window High (b31:b24) */
+#define SBSDIO_FUNC1_SBADDRHIGH 0x1000C
+/* Frame Control (frame term/abort) */
+#define SBSDIO_FUNC1_FRAMECTRL 0x1000D
+/* ChipClockCSR (ALP/HT ctl/status) */
+#define SBSDIO_FUNC1_CHIPCLKCSR 0x1000E
+/* SdioPullUp (on cmd, d0-d2) */
+#define SBSDIO_FUNC1_SDIOPULLUP 0x1000F
+/* Write Frame Byte Count Low */
+#define SBSDIO_FUNC1_WFRAMEBCLO 0x10019
+/* Write Frame Byte Count High */
+#define SBSDIO_FUNC1_WFRAMEBCHI 0x1001A
+/* Read Frame Byte Count Low */
+#define SBSDIO_FUNC1_RFRAMEBCLO 0x1001B
+/* Read Frame Byte Count High */
+#define SBSDIO_FUNC1_RFRAMEBCHI 0x1001C
+
+#define SBSDIO_FUNC1_MISC_REG_START 0x10000 /* f1 misc register start */
+#define SBSDIO_FUNC1_MISC_REG_LIMIT 0x1001C /* f1 misc register end */
+
+/* function 1 OCP space */
+
+/* sb offset addr is <= 15 bits, 32k */
+#define SBSDIO_SB_OFT_ADDR_MASK 0x07FFF
+#define SBSDIO_SB_OFT_ADDR_LIMIT 0x08000
+/* with b15, maps to 32-bit SB access */
+#define SBSDIO_SB_ACCESS_2_4B_FLAG 0x08000
+
+/* valid bits in SBSDIO_FUNC1_SBADDRxxx regs */
+
+#define SBSDIO_SBADDRLOW_MASK 0x80 /* Valid bits in SBADDRLOW */
+#define SBSDIO_SBADDRMID_MASK 0xff /* Valid bits in SBADDRMID */
+#define SBSDIO_SBADDRHIGH_MASK 0xffU /* Valid bits in SBADDRHIGH */
+/* Address bits from SBADDR regs */
+#define SBSDIO_SBWINDOW_MASK 0xffff8000
+
+#define SDIOH_READ 0 /* Read request */
+#define SDIOH_WRITE 1 /* Write request */
+
+#define SDIOH_DATA_FIX 0 /* Fixed addressing */
+#define SDIOH_DATA_INC 1 /* Incremental addressing */
+
+/* internal return code */
+#define SUCCESS 0
+#define ERROR 1
+
+struct brcmf_sdreg {
+ int func;
+ int offset;
+ int value;
+};
+
+struct brcmf_sdio_dev {
+ struct sdio_func *func[SDIO_MAX_FUNCS];
+ u8 num_funcs; /* Supported funcs on client */
+ u32 func_cis_ptr[SDIOD_MAX_IOFUNCS];
+ u32 sbwad; /* Save backplane window address */
+ bool regfail; /* status of last reg_r/w call */
+ void *bus;
+ atomic_t suspend; /* suspend flag */
+ wait_queue_head_t request_byte_wait;
+ wait_queue_head_t request_word_wait;
+ wait_queue_head_t request_packet_wait;
+ wait_queue_head_t request_buffer_wait;
+
+};
+
+/* Register/deregister device interrupt handler. */
+extern int
+brcmf_sdcard_intr_reg(struct brcmf_sdio_dev *sdiodev);
+
+extern int brcmf_sdcard_intr_dereg(struct brcmf_sdio_dev *sdiodev);
+
+/* Access SDIO address space (e.g. CCCR) using CMD52 (single-byte interface).
+ * fn: function number
+ * addr: unmodified SDIO-space address
+ * data: data byte to write
+ * err: pointer to error code (or NULL)
+ */
+extern u8 brcmf_sdcard_cfg_read(struct brcmf_sdio_dev *sdiodev, uint func,
+ u32 addr, int *err);
+extern void brcmf_sdcard_cfg_write(struct brcmf_sdio_dev *sdiodev, uint func,
+ u32 addr, u8 data, int *err);
+
+/* Synchronous access to device (client) core registers via CMD53 to F1.
+ * addr: backplane address (i.e. >= regsva from attach)
+ * size: register width in bytes (2 or 4)
+ * data: data for register write
+ */
+extern u32
+brcmf_sdcard_reg_read(struct brcmf_sdio_dev *sdiodev, u32 addr, uint size);
+
+extern u32
+brcmf_sdcard_reg_write(struct brcmf_sdio_dev *sdiodev, u32 addr, uint size,
+ u32 data);
+
+/* Indicate if last reg read/write failed */
+extern bool brcmf_sdcard_regfail(struct brcmf_sdio_dev *sdiodev);
+
+/* Buffer transfer to/from device (client) core via cmd53.
+ * fn: function number
+ * addr: backplane address (i.e. >= regsva from attach)
+ * flags: backplane width, address increment, sync/async
+ * buf: pointer to memory data buffer
+ * nbytes: number of bytes to transfer to/from buf
+ * pkt: pointer to packet associated with buf (if any)
+ * complete: callback function for command completion (async only)
+ * handle: handle for completion callback (first arg in callback)
+ * Returns 0 or error code.
+ * NOTE: Async operation is not currently supported.
+ */
+extern int
+brcmf_sdcard_send_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
+ uint flags, u8 *buf, uint nbytes, struct sk_buff *pkt);
+extern int
+brcmf_sdcard_recv_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
+ uint flags, u8 *buf, uint nbytes, struct sk_buff *pkt);
+
+/* Flags bits */
+
+/* Four-byte target (backplane) width (vs. two-byte) */
+#define SDIO_REQ_4BYTE 0x1
+/* Fixed address (FIFO) (vs. incrementing address) */
+#define SDIO_REQ_FIXED 0x2
+/* Async request (vs. sync request) */
+#define SDIO_REQ_ASYNC 0x4
+
+/* Read/write to memory block (F1, no FIFO) via CMD53 (sync only).
+ * rw: read or write (0/1)
+ * addr: direct SDIO address
+ * buf: pointer to memory data buffer
+ * nbytes: number of bytes to transfer to/from buf
+ * Returns 0 or error code.
+ */
+extern int brcmf_sdcard_rwdata(struct brcmf_sdio_dev *sdiodev, uint rw,
+ u32 addr, u8 *buf, uint nbytes);
+
+/* Issue an abort to the specified function */
+extern int brcmf_sdcard_abort(struct brcmf_sdio_dev *sdiodev, uint fn);
+
+/* platform specific/high level functions */
+extern int brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev);
+extern int brcmf_sdio_remove(struct brcmf_sdio_dev *sdiodev);
+
+extern int brcmf_sdcard_set_sbaddr_window(struct brcmf_sdio_dev *sdiodev,
+ u32 address);
+
+/* attach, return handler on success, NULL if failed.
+ * The handler shall be provided by all subsequent calls. No local cache
+ * cfghdl points to the starting address of pci device mapped memory
+ */
+extern int brcmf_sdioh_attach(struct brcmf_sdio_dev *sdiodev);
+extern void brcmf_sdioh_detach(struct brcmf_sdio_dev *sdiodev);
+
+/* read or write one byte using cmd52 */
+extern int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw,
+ uint fnc, uint addr, u8 *byte);
+
+/* read or write 2/4 bytes using cmd53 */
+extern int
+brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev,
+ uint rw, uint fnc, uint addr,
+ u32 *word, uint nbyte);
+
+/* read or write any buffer using cmd53 */
+extern int
+brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev,
+ uint fix_inc, uint rw, uint fnc_num,
+ u32 addr, uint regwidth,
+ u32 buflen, u8 *buffer, struct sk_buff *pkt);
+
+/* Watchdog timer interface for pm ops */
+extern void brcmf_sdio_wdtmr_enable(struct brcmf_sdio_dev *sdiodev,
+ bool enable);
+
+extern void *brcmf_sdbrcm_probe(u16 bus_no, u16 slot, u16 func, uint bustype,
+ u32 regsva, struct brcmf_sdio_dev *sdiodev);
+extern void brcmf_sdbrcm_disconnect(void *ptr);
+extern void brcmf_sdbrcm_isr(void *arg);
+#endif /* _BRCM_SDH_H_ */