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/*
* 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.
*/
/**
* @file bcmsdh_linux.c
*/
#define __UNDEF_NO_VERSION__
#include <linux/netdevice.h>
#include <linux/pci.h>
#include <linux/completion.h>
#include <linux/sched.h>
#include <defs.h>
#include <brcm_hw_ids.h>
#include <brcmu_utils.h>
#include <brcmu_wifi.h>
#include "sdio_host.h"
#include "dngl_stats.h"
#include "dhd.h"
#include "dhd_bus.h"
#include "bcmsdbus.h"
/**
* SDIO Host Controller info
*/
struct sdio_hc {
struct sdio_hc *next;
struct device *dev; /* platform device handle */
void *regs; /* SDIO Host Controller address */
struct brcmf_sdio_card *card;
void *ch;
unsigned int oob_irq;
unsigned long oob_flags; /* OOB Host specifiction
as edge and etc */
bool oob_irq_registered;
};
static struct sdio_hc *sdhcinfo;
/* driver info, initialized when brcmf_sdio_register is called */
static struct brcmf_sdioh_driver drvinfo = { NULL, NULL };
/* debugging macros */
#define SDLX_MSG(x)
/* forward declarations */
int brcmf_sdio_probe(struct device *dev);
EXPORT_SYMBOL(brcmf_sdio_probe);
int brcmf_sdio_remove(struct device *dev);
EXPORT_SYMBOL(brcmf_sdio_remove);
int brcmf_sdio_probe(struct device *dev)
{
struct sdio_hc *sdhc = NULL;
u32 regs = 0;
struct brcmf_sdio_card *card = NULL;
int irq = 0;
u32 vendevid;
unsigned long irq_flags = 0;
/* allocate SDIO Host Controller state info */
sdhc = kzalloc(sizeof(struct sdio_hc), GFP_ATOMIC);
if (!sdhc) {
SDLX_MSG(("%s: out of memory\n", __func__));
goto err;
}
sdhc->dev = (void *)dev;
card = brcmf_sdcard_attach((void *)0, ®s, irq);
if (!card) {
SDLX_MSG(("%s: attach failed\n", __func__));
goto err;
}
sdhc->card = card;
sdhc->oob_irq = irq;
sdhc->oob_flags = irq_flags;
sdhc->oob_irq_registered = false; /* to make sure.. */
/* chain SDIO Host Controller info together */
sdhc->next = sdhcinfo;
sdhcinfo = sdhc;
/* Read the vendor/device ID from the CIS */
vendevid = brcmf_sdcard_query_device(card);
/* try to attach to the target device */
sdhc->ch = drvinfo.attach((vendevid >> 16), (vendevid & 0xFFFF),
0, 0, 0, 0, regs, card);
if (!sdhc->ch) {
SDLX_MSG(("%s: device attach failed\n", __func__));
goto err;
}
return 0;
/* error handling */
err:
if (sdhc) {
if (sdhc->card)
brcmf_sdcard_detach(sdhc->card);
kfree(sdhc);
}
return -ENODEV;
}
int brcmf_sdio_remove(struct device *dev)
{
struct sdio_hc *sdhc, *prev;
sdhc = sdhcinfo;
drvinfo.detach(sdhc->ch);
brcmf_sdcard_detach(sdhc->card);
/* find the SDIO Host Controller state for this pdev
and take it out from the list */
for (sdhc = sdhcinfo, prev = NULL; sdhc; sdhc = sdhc->next) {
if (sdhc->dev == (void *)dev) {
if (prev)
prev->next = sdhc->next;
else
sdhcinfo = NULL;
break;
}
prev = sdhc;
}
if (!sdhc) {
SDLX_MSG(("%s: failed\n", __func__));
return 0;
}
/* release SDIO Host Controller info */
kfree(sdhc);
return 0;
}
int brcmf_sdio_register(struct brcmf_sdioh_driver *driver)
{
drvinfo = *driver;
SDLX_MSG(("Linux Kernel SDIO/MMC Driver\n"));
return brcmf_sdio_function_init();
}
void brcmf_sdio_unregister(void)
{
brcmf_sdio_function_cleanup();
}
/* Module parameters specific to each host-controller driver */
module_param(sd_msglevel, uint, 0);
extern uint sd_f2_blocksize;
module_param(sd_f2_blocksize, int, 0);
void brcmf_sdio_wdtmr_enable(bool enable)
{
if (enable)
brcmf_sdbrcm_wd_timer(sdhcinfo->ch, brcmf_watchdog_ms);
else
brcmf_sdbrcm_wd_timer(sdhcinfo->ch, 0);
}
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