/*
* 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/scatterlist.h>
#include <linux/mmc/sdio.h>
#include <linux/mmc/core.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
#include <linux/platform_device.h>
#include <linux/platform_data/brcmfmac-sdio.h>
#include <linux/suspend.h>
#include <linux/errno.h>
#include <linux/module.h>
#include <net/cfg80211.h>
#include <defs.h>
#include <brcm_hw_ids.h>
#include <brcmu_utils.h>
#include <brcmu_wifi.h>
#include <chipcommon.h>
#include <soc.h>
#include "chip.h"
#include "bus.h"
#include "debug.h"
#include "sdio.h"
#include "of.h"
#define SDIOH_API_ACCESS_RETRY_LIMIT 2
#define DMA_ALIGN_MASK 0x03
#define SDIO_FUNC1_BLOCKSIZE 64
#define SDIO_FUNC2_BLOCKSIZE 512
/* Maximum milliseconds to wait for F2 to come up */
#define SDIO_WAIT_F2RDY 3000
#define BRCMF_DEFAULT_TXGLOM_SIZE 32 /* max tx frames in glom chain */
#define BRCMF_DEFAULT_RXGLOM_SIZE 32 /* max rx frames in glom chain */
static int brcmf_sdiod_txglomsz = BRCMF_DEFAULT_TXGLOM_SIZE;
module_param_named(txglomsz, brcmf_sdiod_txglomsz, int, 0);
MODULE_PARM_DESC(txglomsz, "maximum tx packet chain size [SDIO]");
static irqreturn_t brcmf_sdiod_oob_irqhandler(int irq, void *dev_id)
{
struct brcmf_bus *bus_if = dev_get_drvdata(dev_id);
struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
brcmf_dbg(INTR, "OOB intr triggered\n");
/* out-of-band interrupt is level-triggered which won't
* be cleared until dpc
*/
if (sdiodev->irq_en) {
disable_irq_nosync(irq);
sdiodev->irq_en = false;
}
brcmf_sdio_isr(sdiodev->bus);
return IRQ_HANDLED;
}
static void brcmf_sdiod_ib_irqhandler(struct sdio_func *func)
{
struct brcmf_bus *bus_if = dev_get_drvdata(&func->dev);
struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
brcmf_dbg(INTR, "IB intr triggered\n");
brcmf_sdio_isr(sdiodev->bus);
}
/* dummy handler for SDIO function 2 interrupt */
static void brcmf_sdiod_dummy_irqhandler(struct sdio_func *func)
{
}
int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev)
{
int ret = 0;
u8 data;
u32 addr, gpiocontrol;
unsigned long flags;
if ((sdiodev->pdata) && (sdiodev->pdata->oob_irq_supported)) {
brcmf_dbg(SDIO, "Enter, register OOB IRQ %d\n",
sdiodev->pdata->oob_irq_nr);
ret = request_irq(sdiodev->pdata->oob_irq_nr,
brcmf_sdiod_oob_irqhandler,
sdiodev->pdata->oob_irq_flags,
"brcmf_oob_intr",
&sdiodev