029c02a3ae
It's now possible to use Broadcom functions to read the I/O registers of
SDIO card. The functions were copied from the BSD-licensed Broadcom Linux driver
as-is. To make it possible, a small Linux compatibility layer was introduced.
Currently the card responds with the correct version number ("magic")
when reading the corresponding address.
Approved by: imp (mentor)
Differential Revision: https://reviews.freebsd.org/D12111
161 lines
5.2 KiB
C
161 lines
5.2 KiB
C
/*
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* Copyright (c) 2010 Broadcom Corporation
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* $FreeBSD$
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*/
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#define SDIO_FUNC_0 0
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#define SDIO_FUNC_1 1
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#define SDIO_FUNC_2 2
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#define SDIOD_FBR_SIZE 0x100
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/* io_en */
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#define SDIO_FUNC_ENABLE_1 0x02
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#define SDIO_FUNC_ENABLE_2 0x04
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/* io_rdys */
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#define SDIO_FUNC_READY_1 0x02
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#define SDIO_FUNC_READY_2 0x04
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/* intr_status */
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#define INTR_STATUS_FUNC1 0x2
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#define INTR_STATUS_FUNC2 0x4
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/* Maximum number of I/O funcs */
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#define SDIOD_MAX_IOFUNCS 7
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/* mask of register map */
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#define REG_F0_REG_MASK 0x7FF
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#define REG_F1_MISC_MASK 0x1FFFF
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/* as of sdiod rev 0, supports 3 functions */
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#define SBSDIO_NUM_FUNCTION 3
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/* function 0 vendor specific CCCR registers */
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#define SDIO_CCCR_BRCM_CARDCAP 0xf0
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#define SDIO_CCCR_BRCM_CARDCAP_CMD14_SUPPORT 0x02
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#define SDIO_CCCR_BRCM_CARDCAP_CMD14_EXT 0x04
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#define SDIO_CCCR_BRCM_CARDCAP_CMD_NODEC 0x08
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#define SDIO_CCCR_BRCM_CARDCTRL 0xf1
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#define SDIO_CCCR_BRCM_CARDCTRL_WLANRESET 0x02
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#define SDIO_CCCR_BRCM_SEPINT 0xf2
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#define SDIO_SEPINT_MASK 0x01
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#define SDIO_SEPINT_OE 0x02
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#define SDIO_SEPINT_ACT_HI 0x04
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/* function 1 miscellaneous registers */
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/* sprom command and status */
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#define SBSDIO_SPROM_CS 0x10000
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/* sprom info register */
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#define SBSDIO_SPROM_INFO 0x10001
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/* sprom indirect access data byte 0 */
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#define SBSDIO_SPROM_DATA_LOW 0x10002
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/* sprom indirect access data byte 1 */
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#define SBSDIO_SPROM_DATA_HIGH 0x10003
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/* sprom indirect access addr byte 0 */
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#define SBSDIO_SPROM_ADDR_LOW 0x10004
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/* gpio select */
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#define SBSDIO_GPIO_SELECT 0x10005
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/* gpio output */
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#define SBSDIO_GPIO_OUT 0x10006
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/* gpio enable */
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#define SBSDIO_GPIO_EN 0x10007
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/* rev < 7, watermark for sdio device */
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#define SBSDIO_WATERMARK 0x10008
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/* control busy signal generation */
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#define SBSDIO_DEVICE_CTL 0x10009
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/* SB Address Window Low (b15) */
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#define SBSDIO_FUNC1_SBADDRLOW 0x1000A
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/* SB Address Window Mid (b23:b16) */
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#define SBSDIO_FUNC1_SBADDRMID 0x1000B
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/* SB Address Window High (b31:b24) */
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#define SBSDIO_FUNC1_SBADDRHIGH 0x1000C
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/* Frame Control (frame term/abort) */
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#define SBSDIO_FUNC1_FRAMECTRL 0x1000D
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/* ChipClockCSR (ALP/HT ctl/status) */
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#define SBSDIO_FUNC1_CHIPCLKCSR 0x1000E
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/* SdioPullUp (on cmd, d0-d2) */
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#define SBSDIO_FUNC1_SDIOPULLUP 0x1000F
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/* Write Frame Byte Count Low */
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#define SBSDIO_FUNC1_WFRAMEBCLO 0x10019
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/* Write Frame Byte Count High */
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#define SBSDIO_FUNC1_WFRAMEBCHI 0x1001A
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/* Read Frame Byte Count Low */
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#define SBSDIO_FUNC1_RFRAMEBCLO 0x1001B
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/* Read Frame Byte Count High */
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#define SBSDIO_FUNC1_RFRAMEBCHI 0x1001C
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/* MesBusyCtl (rev 11) */
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#define SBSDIO_FUNC1_MESBUSYCTRL 0x1001D
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/* Sdio Core Rev 12 */
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#define SBSDIO_FUNC1_WAKEUPCTRL 0x1001E
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#define SBSDIO_FUNC1_WCTRL_ALPWAIT_MASK 0x1
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#define SBSDIO_FUNC1_WCTRL_ALPWAIT_SHIFT 0
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#define SBSDIO_FUNC1_WCTRL_HTWAIT_MASK 0x2
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#define SBSDIO_FUNC1_WCTRL_HTWAIT_SHIFT 1
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#define SBSDIO_FUNC1_SLEEPCSR 0x1001F
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#define SBSDIO_FUNC1_SLEEPCSR_KSO_MASK 0x1
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#define SBSDIO_FUNC1_SLEEPCSR_KSO_SHIFT 0
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#define SBSDIO_FUNC1_SLEEPCSR_KSO_EN 1
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#define SBSDIO_FUNC1_SLEEPCSR_DEVON_MASK 0x2
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#define SBSDIO_FUNC1_SLEEPCSR_DEVON_SHIFT 1
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#define SBSDIO_FUNC1_MISC_REG_START 0x10000 /* f1 misc register start */
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#define SBSDIO_FUNC1_MISC_REG_LIMIT 0x1001F /* f1 misc register end */
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/* function 1 OCP space */
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/* sb offset addr is <= 15 bits, 32k */
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#define SBSDIO_SB_OFT_ADDR_MASK 0x07FFF
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#define SBSDIO_SB_OFT_ADDR_LIMIT 0x08000
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/* with b15, maps to 32-bit SB access */
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#define SBSDIO_SB_ACCESS_2_4B_FLAG 0x08000
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/* valid bits in SBSDIO_FUNC1_SBADDRxxx regs */
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#define SBSDIO_SBADDRLOW_MASK 0x80 /* Valid bits in SBADDRLOW */
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#define SBSDIO_SBADDRMID_MASK 0xff /* Valid bits in SBADDRMID */
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#define SBSDIO_SBADDRHIGH_MASK 0xffU /* Valid bits in SBADDRHIGH */
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/* Address bits from SBADDR regs */
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#define SBSDIO_SBWINDOW_MASK 0xffff8000
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#define SDIOH_READ 0 /* Read request */
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#define SDIOH_WRITE 1 /* Write request */
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#define SDIOH_DATA_FIX 0 /* Fixed addressing */
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#define SDIOH_DATA_INC 1 /* Incremental addressing */
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/* internal return code */
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#define SUCCESS 0
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#define ERROR 1
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/* Packet alignment for most efficient SDIO (can change based on platform) */
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#define BRCMF_SDALIGN (1 << 6)
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/**
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* enum brcmf_sdiod_state - the state of the bus.
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*
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* @BRCMF_SDIOD_DOWN: Device can be accessed, no DPC.
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* @BRCMF_SDIOD_DATA: Ready for data transfers, DPC enabled.
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* @BRCMF_SDIOD_NOMEDIUM: No medium access to dongle possible.
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*/
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enum brcmf_sdiod_state {
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BRCMF_SDIOD_DOWN,
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BRCMF_SDIOD_DATA,
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BRCMF_SDIOD_NOMEDIUM
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};
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