diff options
Diffstat (limited to 'drivers/staging/brcm80211/brcmfmac/bcmsdh.c')
| -rw-r--r-- | drivers/staging/brcm80211/brcmfmac/bcmsdh.c | 371 |
1 files changed, 0 insertions, 371 deletions
diff --git a/drivers/staging/brcm80211/brcmfmac/bcmsdh.c b/drivers/staging/brcm80211/brcmfmac/bcmsdh.c deleted file mode 100644 index bff9dcd6fadc..000000000000 --- a/drivers/staging/brcm80211/brcmfmac/bcmsdh.c +++ /dev/null @@ -1,371 +0,0 @@ -/* - * 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. - */ -/* ****************** SDIO CARD Interface Functions **************************/ - -#include <linux/types.h> -#include <linux/netdevice.h> -#include <linux/pci.h> -#include <linux/pci_ids.h> -#include <linux/sched.h> -#include <linux/completion.h> -#include <linux/mmc/sdio.h> -#include <linux/mmc/sdio_func.h> -#include <linux/mmc/card.h> - -#include <defs.h> -#include <brcm_hw_ids.h> -#include <brcmu_utils.h> -#include <brcmu_wifi.h> -#include <soc.h> -#include "dhd.h" -#include "dhd_bus.h" -#include "dhd_dbg.h" -#include "sdio_host.h" - -#define SDIOH_API_ACCESS_RETRY_LIMIT 2 - -static void brcmf_sdioh_irqhandler(struct sdio_func *func) -{ - struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev); - - brcmf_dbg(TRACE, "***IRQHandler\n"); - - sdio_release_host(func); - - brcmf_sdbrcm_isr(sdiodev->bus); - - sdio_claim_host(func); -} - -int brcmf_sdcard_intr_reg(struct brcmf_sdio_dev *sdiodev) -{ - brcmf_dbg(TRACE, "Entering\n"); - - sdio_claim_host(sdiodev->func[1]); - sdio_claim_irq(sdiodev->func[1], brcmf_sdioh_irqhandler); - sdio_release_host(sdiodev->func[1]); - - return 0; -} - -int brcmf_sdcard_intr_dereg(struct brcmf_sdio_dev *sdiodev) -{ - brcmf_dbg(TRACE, "Entering\n"); - - sdio_claim_host(sdiodev->func[1]); - sdio_release_irq(sdiodev->func[1]); - sdio_release_host(sdiodev->func[1]); - - return 0; -} - -u8 brcmf_sdcard_cfg_read(struct brcmf_sdio_dev *sdiodev, uint fnc_num, u32 addr, - int *err) -{ - int status; - s32 retry = 0; - u8 data = 0; - - do { - if (retry) /* wait for 1 ms till bus get settled down */ - udelay(1000); - status = brcmf_sdioh_request_byte(sdiodev, SDIOH_READ, fnc_num, - addr, (u8 *) &data); - } while (status != 0 - && (retry++ < SDIOH_API_ACCESS_RETRY_LIMIT)); - if (err) - *err = status; - - brcmf_dbg(INFO, "fun = %d, addr = 0x%x, u8data = 0x%x\n", - fnc_num, addr, data); - - return data; -} - -void -brcmf_sdcard_cfg_write(struct brcmf_sdio_dev *sdiodev, uint fnc_num, u32 addr, - u8 data, int *err) -{ - int status; - s32 retry = 0; - - do { - if (retry) /* wait for 1 ms till bus get settled down */ - udelay(1000); - status = brcmf_sdioh_request_byte(sdiodev, SDIOH_WRITE, fnc_num, - addr, (u8 *) &data); - } while (status != 0 - && (retry++ < SDIOH_API_ACCESS_RETRY_LIMIT)); - if (err) - *err = status; - - brcmf_dbg(INFO, "fun = %d, addr = 0x%x, u8data = 0x%x\n", - fnc_num, addr, data); -} - -int -brcmf_sdcard_set_sbaddr_window(struct brcmf_sdio_dev *sdiodev, u32 address) -{ - int err = 0; - brcmf_sdcard_cfg_write(sdiodev, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRLOW, - (address >> 8) & SBSDIO_SBADDRLOW_MASK, &err); - if (!err) - brcmf_sdcard_cfg_write(sdiodev, SDIO_FUNC_1, - SBSDIO_FUNC1_SBADDRMID, - (address >> 16) & SBSDIO_SBADDRMID_MASK, - &err); - if (!err) - brcmf_sdcard_cfg_write(sdiodev, SDIO_FUNC_1, - SBSDIO_FUNC1_SBADDRHIGH, - (address >> 24) & SBSDIO_SBADDRHIGH_MASK, - &err); - - return err; -} - -u32 brcmf_sdcard_reg_read(struct brcmf_sdio_dev *sdiodev, u32 addr, uint size) -{ - int status; - u32 word = 0; - uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK; - - brcmf_dbg(INFO, "fun = 1, addr = 0x%x\n", addr); - - if (bar0 != sdiodev->sbwad) { - if (brcmf_sdcard_set_sbaddr_window(sdiodev, bar0)) - return 0xFFFFFFFF; - - sdiodev->sbwad = bar0; - } - - addr &= SBSDIO_SB_OFT_ADDR_MASK; - if (size == 4) - addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; - - status = brcmf_sdioh_request_word(sdiodev, SDIOH_READ, SDIO_FUNC_1, - addr, &word, size); - - sdiodev->regfail = (status != 0); - - brcmf_dbg(INFO, "u32data = 0x%x\n", word); - - /* if ok, return appropriately masked word */ - if (status == 0) { - switch (size) { - case sizeof(u8): - return word & 0xff; - case sizeof(u16): - return word & 0xffff; - case sizeof(u32): - return word; - default: - sdiodev->regfail = true; - - } - } - - /* otherwise, bad sdio access or invalid size */ - brcmf_dbg(ERROR, "error reading addr 0x%04x size %d\n", addr, size); - return 0xFFFFFFFF; -} - -u32 brcmf_sdcard_reg_write(struct brcmf_sdio_dev *sdiodev, u32 addr, uint size, - u32 data) -{ - int status; - uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK; - int err = 0; - - brcmf_dbg(INFO, "fun = 1, addr = 0x%x, uint%ddata = 0x%x\n", - addr, size * 8, data); - - if (bar0 != sdiodev->sbwad) { - err = brcmf_sdcard_set_sbaddr_window(sdiodev, bar0); - if (err) - return err; - - sdiodev->sbwad = bar0; - } - - addr &= SBSDIO_SB_OFT_ADDR_MASK; - if (size == 4) - addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; - status = - brcmf_sdioh_request_word(sdiodev, SDIOH_WRITE, SDIO_FUNC_1, - addr, &data, size); - sdiodev->regfail = (status != 0); - - if (status == 0) - return 0; - - brcmf_dbg(ERROR, "error writing 0x%08x to addr 0x%04x size %d\n", - data, addr, size); - return 0xFFFFFFFF; -} - -bool brcmf_sdcard_regfail(struct brcmf_sdio_dev *sdiodev) -{ - return sdiodev->regfail; -} - -int -brcmf_sdcard_recv_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn, - uint flags, - u8 *buf, uint nbytes, struct sk_buff *pkt) -{ - int status; - uint incr_fix; - uint width; - uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK; - int err = 0; - - brcmf_dbg(INFO, "fun = %d, addr = 0x%x, size = %d\n", fn, addr, nbytes); - - /* Async not implemented yet */ - if (flags & SDIO_REQ_ASYNC) - return -ENOTSUPP; - - if (bar0 != sdiodev->sbwad) { - err = brcmf_sdcard_set_sbaddr_window(sdiodev, bar0); - if (err) - return err; - - sdiodev->sbwad = bar0; - } - - addr &= SBSDIO_SB_OFT_ADDR_MASK; - - incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC; - width = (flags & SDIO_REQ_4BYTE) ? 4 : 2; - if (width == 4) - addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; - - status = brcmf_sdioh_request_buffer(sdiodev, incr_fix, SDIOH_READ, - fn, addr, width, nbytes, buf, pkt); - - return status; -} - -int -brcmf_sdcard_send_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn, - uint flags, u8 *buf, uint nbytes, struct sk_buff *pkt) -{ - uint incr_fix; - uint width; - uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK; - int err = 0; - - brcmf_dbg(INFO, "fun = %d, addr = 0x%x, size = %d\n", fn, addr, nbytes); - - /* Async not implemented yet */ - if (flags & SDIO_REQ_ASYNC) - return -ENOTSUPP; - - if (bar0 != sdiodev->sbwad) { - err = brcmf_sdcard_set_sbaddr_window(sdiodev, bar0); - if (err) - return err; - - sdiodev->sbwad = bar0; - } - - addr &= SBSDIO_SB_OFT_ADDR_MASK; - - incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC; - width = (flags & SDIO_REQ_4BYTE) ? 4 : 2; - if (width == 4) - addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; - - return brcmf_sdioh_request_buffer(sdiodev, incr_fix, SDIOH_WRITE, fn, - addr, width, nbytes, buf, pkt); -} - -int brcmf_sdcard_rwdata(struct brcmf_sdio_dev *sdiodev, uint rw, u32 addr, - u8 *buf, uint nbytes) -{ - addr &= SBSDIO_SB_OFT_ADDR_MASK; - addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; - - return brcmf_sdioh_request_buffer(sdiodev, SDIOH_DATA_INC, - (rw ? SDIOH_WRITE : SDIOH_READ), SDIO_FUNC_1, - addr, 4, nbytes, buf, NULL); -} - -int brcmf_sdcard_abort(struct brcmf_sdio_dev *sdiodev, uint fn) -{ - char t_func = (char)fn; - brcmf_dbg(TRACE, "Enter\n"); - - /* issue abort cmd52 command through F0 */ - brcmf_sdioh_request_byte(sdiodev, SDIOH_WRITE, SDIO_FUNC_0, - SDIO_CCCR_ABORT, &t_func); - - brcmf_dbg(TRACE, "Exit\n"); - return 0; -} - -int brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev) -{ - u32 regs = 0; - int ret = 0; - - ret = brcmf_sdioh_attach(sdiodev); - if (ret) - goto out; - - regs = SI_ENUM_BASE; - - /* Report the BAR, to fix if needed */ - sdiodev->sbwad = SI_ENUM_BASE; - - /* try to attach to the target device */ - sdiodev->bus = brcmf_sdbrcm_probe(0, 0, 0, 0, regs, sdiodev); - if (!sdiodev->bus) { - brcmf_dbg(ERROR, "device attach failed\n"); - ret = -ENODEV; - goto out; - } - -out: - if (ret) - brcmf_sdio_remove(sdiodev); - - return ret; -} -EXPORT_SYMBOL(brcmf_sdio_probe); - -int brcmf_sdio_remove(struct brcmf_sdio_dev *sdiodev) -{ - if (sdiodev->bus) { - brcmf_sdbrcm_disconnect(sdiodev->bus); - sdiodev->bus = NULL; - } - - brcmf_sdioh_detach(sdiodev); - - sdiodev->sbwad = 0; - - return 0; -} -EXPORT_SYMBOL(brcmf_sdio_remove); - -void brcmf_sdio_wdtmr_enable(struct brcmf_sdio_dev *sdiodev, bool enable) -{ - if (enable) - brcmf_sdbrcm_wd_timer(sdiodev->bus, BRCMF_WD_POLL_MS); - else - brcmf_sdbrcm_wd_timer(sdiodev->bus, 0); -} |