392 lines
12 KiB
C
392 lines
12 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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#ifndef BRCMFMAC_SDIO_H
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#define BRCMFMAC_SDIO_H
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#include <linux/skbuff.h>
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#include <linux/firmware.h>
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#include "firmware.h"
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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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/* 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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/* 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 BIT(1)
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#define SDIO_CCCR_BRCM_CARDCAP_CMD14_EXT BIT(2)
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#define SDIO_CCCR_BRCM_CARDCAP_CMD_NODEC BIT(3)
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/* Interrupt enable bits for each function */
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#define SDIO_CCCR_IEN_FUNC0 BIT(0)
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#define SDIO_CCCR_IEN_FUNC1 BIT(1)
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#define SDIO_CCCR_IEN_FUNC2 BIT(2)
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#define SDIO_CCCR_BRCM_CARDCTRL 0xf1
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#define SDIO_CCCR_BRCM_CARDCTRL_WLANRESET BIT(1)
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#define SDIO_CCCR_BRCM_SEPINT 0xf2
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#define SDIO_CCCR_BRCM_SEPINT_MASK BIT(0)
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#define SDIO_CCCR_BRCM_SEPINT_OE BIT(1)
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#define SDIO_CCCR_BRCM_SEPINT_ACT_HI BIT(2)
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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 TX path */
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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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/* Watermark for sdio device RX path */
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#define SBSDIO_MESBUSY_RXFIFO_WM_MASK 0x7F
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#define SBSDIO_MESBUSY_RXFIFO_WM_SHIFT 0
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/* Enable busy capability for MES access */
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#define SBSDIO_MESBUSYCTRL_ENAB 0x80
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#define SBSDIO_MESBUSYCTRL_ENAB_SHIFT 7
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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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/* 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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/* watchdog polling interval */
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#define BRCMF_WD_POLL msecs_to_jiffies(10)
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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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struct brcmf_sdreg {
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int func;
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int offset;
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int value;
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};
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struct brcmf_sdio;
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struct brcmf_sdiod_freezer;
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struct brcmf_sdio_dev {
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struct sdio_func *func1;
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struct sdio_func *func2;
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u32 sbwad; /* Save backplane window address */
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struct brcmf_core *cc_core; /* chipcommon core info struct */
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struct brcmf_sdio *bus;
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struct device *dev;
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struct brcmf_bus *bus_if;
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struct brcmf_mp_device *settings;
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bool oob_irq_requested;
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bool sd_irq_requested;
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bool irq_en; /* irq enable flags */
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spinlock_t irq_en_lock;
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bool irq_wake; /* irq wake enable flags */
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bool sg_support;
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uint max_request_size;
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ushort max_segment_count;
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uint max_segment_size;
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uint txglomsz;
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struct sg_table sgtable;
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char fw_name[BRCMF_FW_NAME_LEN];
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char nvram_name[BRCMF_FW_NAME_LEN];
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bool wowl_enabled;
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enum brcmf_sdiod_state state;
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struct brcmf_sdiod_freezer *freezer;
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};
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/* sdio core registers */
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struct sdpcmd_regs {
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u32 corecontrol; /* 0x00, rev8 */
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u32 corestatus; /* rev8 */
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u32 PAD[1];
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u32 biststatus; /* rev8 */
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/* PCMCIA access */
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u16 pcmciamesportaladdr; /* 0x010, rev8 */
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u16 PAD[1];
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u16 pcmciamesportalmask; /* rev8 */
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u16 PAD[1];
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u16 pcmciawrframebc; /* rev8 */
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u16 PAD[1];
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u16 pcmciaunderflowtimer; /* rev8 */
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u16 PAD[1];
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/* interrupt */
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u32 intstatus; /* 0x020, rev8 */
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u32 hostintmask; /* rev8 */
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u32 intmask; /* rev8 */
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u32 sbintstatus; /* rev8 */
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u32 sbintmask; /* rev8 */
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u32 funcintmask; /* rev4 */
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u32 PAD[2];
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u32 tosbmailbox; /* 0x040, rev8 */
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u32 tohostmailbox; /* rev8 */
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u32 tosbmailboxdata; /* rev8 */
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u32 tohostmailboxdata; /* rev8 */
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/* synchronized access to registers in SDIO clock domain */
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u32 sdioaccess; /* 0x050, rev8 */
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u32 PAD[3];
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/* PCMCIA frame control */
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u8 pcmciaframectrl; /* 0x060, rev8 */
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u8 PAD[3];
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u8 pcmciawatermark; /* rev8 */
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u8 PAD[155];
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/* interrupt batching control */
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u32 intrcvlazy; /* 0x100, rev8 */
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u32 PAD[3];
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/* counters */
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u32 cmd52rd; /* 0x110, rev8 */
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u32 cmd52wr; /* rev8 */
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u32 cmd53rd; /* rev8 */
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u32 cmd53wr; /* rev8 */
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u32 abort; /* rev8 */
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u32 datacrcerror; /* rev8 */
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u32 rdoutofsync; /* rev8 */
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u32 wroutofsync; /* rev8 */
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u32 writebusy; /* rev8 */
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u32 readwait; /* rev8 */
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u32 readterm; /* rev8 */
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u32 writeterm; /* rev8 */
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u32 PAD[40];
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u32 clockctlstatus; /* rev8 */
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u32 PAD[7];
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u32 PAD[128]; /* DMA engines */
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/* SDIO/PCMCIA CIS region */
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char cis[512]; /* 0x400-0x5ff, rev6 */
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/* PCMCIA function control registers */
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char pcmciafcr[256]; /* 0x600-6ff, rev6 */
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u16 PAD[55];
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/* PCMCIA backplane access */
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u16 backplanecsr; /* 0x76E, rev6 */
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u16 backplaneaddr0; /* rev6 */
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u16 backplaneaddr1; /* rev6 */
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u16 backplaneaddr2; /* rev6 */
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u16 backplaneaddr3; /* rev6 */
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u16 backplanedata0; /* rev6 */
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u16 backplanedata1; /* rev6 */
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u16 backplanedata2; /* rev6 */
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u16 backplanedata3; /* rev6 */
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u16 PAD[31];
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/* sprom "size" & "blank" info */
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u16 spromstatus; /* 0x7BE, rev2 */
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u32 PAD[464];
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u16 PAD[0x80];
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};
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/* Register/deregister interrupt handler. */
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int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev);
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void brcmf_sdiod_intr_unregister(struct brcmf_sdio_dev *sdiodev);
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/* SDIO device register access interface */
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/* Accessors for SDIO Function 0 */
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#define brcmf_sdiod_func0_rb(sdiodev, addr, r) \
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sdio_f0_readb((sdiodev)->func1, (addr), (r))
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#define brcmf_sdiod_func0_wb(sdiodev, addr, v, ret) \
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sdio_f0_writeb((sdiodev)->func1, (v), (addr), (ret))
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/* Accessors for SDIO Function 1 */
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#define brcmf_sdiod_readb(sdiodev, addr, r) \
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sdio_readb((sdiodev)->func1, (addr), (r))
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#define brcmf_sdiod_writeb(sdiodev, addr, v, ret) \
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sdio_writeb((sdiodev)->func1, (v), (addr), (ret))
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u32 brcmf_sdiod_readl(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret);
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void brcmf_sdiod_writel(struct brcmf_sdio_dev *sdiodev, u32 addr, u32 data,
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int *ret);
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/* Buffer transfer to/from device (client) core via cmd53.
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* fn: function number
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* flags: backplane width, address increment, sync/async
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* buf: pointer to memory data buffer
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* nbytes: number of bytes to transfer to/from buf
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* pkt: pointer to packet associated with buf (if any)
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* complete: callback function for command completion (async only)
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* handle: handle for completion callback (first arg in callback)
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* Returns 0 or error code.
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* NOTE: Async operation is not currently supported.
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*/
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int brcmf_sdiod_send_pkt(struct brcmf_sdio_dev *sdiodev,
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struct sk_buff_head *pktq);
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int brcmf_sdiod_send_buf(struct brcmf_sdio_dev *sdiodev, u8 *buf, uint nbytes);
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int brcmf_sdiod_recv_pkt(struct brcmf_sdio_dev *sdiodev, struct sk_buff *pkt);
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int brcmf_sdiod_recv_buf(struct brcmf_sdio_dev *sdiodev, u8 *buf, uint nbytes);
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int brcmf_sdiod_recv_chain(struct brcmf_sdio_dev *sdiodev,
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struct sk_buff_head *pktq, uint totlen);
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/* Flags bits */
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/* Four-byte target (backplane) width (vs. two-byte) */
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#define SDIO_REQ_4BYTE 0x1
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/* Fixed address (FIFO) (vs. incrementing address) */
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#define SDIO_REQ_FIXED 0x2
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/* Read/write to memory block (F1, no FIFO) via CMD53 (sync only).
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* rw: read or write (0/1)
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* addr: direct SDIO address
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* buf: pointer to memory data buffer
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* nbytes: number of bytes to transfer to/from buf
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* Returns 0 or error code.
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*/
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int brcmf_sdiod_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
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u8 *data, uint size);
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/* Issue an abort to the specified function */
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int brcmf_sdiod_abort(struct brcmf_sdio_dev *sdiodev, struct sdio_func *func);
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void brcmf_sdiod_sgtable_alloc(struct brcmf_sdio_dev *sdiodev);
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void brcmf_sdiod_change_state(struct brcmf_sdio_dev *sdiodev,
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enum brcmf_sdiod_state state);
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#ifdef CONFIG_PM_SLEEP
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bool brcmf_sdiod_freezing(struct brcmf_sdio_dev *sdiodev);
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void brcmf_sdiod_try_freeze(struct brcmf_sdio_dev *sdiodev);
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void brcmf_sdiod_freezer_count(struct brcmf_sdio_dev *sdiodev);
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void brcmf_sdiod_freezer_uncount(struct brcmf_sdio_dev *sdiodev);
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#else
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static inline bool brcmf_sdiod_freezing(struct brcmf_sdio_dev *sdiodev)
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{
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return false;
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}
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static inline void brcmf_sdiod_try_freeze(struct brcmf_sdio_dev *sdiodev)
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{
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}
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static inline void brcmf_sdiod_freezer_count(struct brcmf_sdio_dev *sdiodev)
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{
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}
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static inline void brcmf_sdiod_freezer_uncount(struct brcmf_sdio_dev *sdiodev)
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{
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}
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#endif /* CONFIG_PM_SLEEP */
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struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev);
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void brcmf_sdio_remove(struct brcmf_sdio *bus);
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void brcmf_sdio_isr(struct brcmf_sdio *bus);
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void brcmf_sdio_wd_timer(struct brcmf_sdio *bus, bool active);
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void brcmf_sdio_wowl_config(struct device *dev, bool enabled);
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int brcmf_sdio_sleep(struct brcmf_sdio *bus, bool sleep);
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void brcmf_sdio_trigger_dpc(struct brcmf_sdio *bus);
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#endif /* BRCMFMAC_SDIO_H */
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