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/*
* This file is part of wl1271
*
* Copyright (C) 2009-2010 Nokia Corporation
*
* Contact: Luciano Coelho <luciano.coelho@nokia.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <linux/platform_device.h>
#include <linux/mmc/sdio.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/sdio_ids.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
#include <linux/gpio.h>
#include <linux/pm_runtime.h>
#include <linux/printk.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include "wlcore.h"
#include "wl12xx_80211.h"
#include "io.h"
#ifndef SDIO_VENDOR_ID_TI
#define SDIO_VENDOR_ID_TI 0x0097
#endif
#ifndef SDIO_DEVICE_ID_TI_WL1271
#define SDIO_DEVICE_ID_TI_WL1271 0x4076
#endif
static bool dump = false;
struct wl12xx_sdio_glue {
struct device *dev;
struct platform_device *core;
};
static const struct sdio_device_id wl1271_devices[] = {
{ SDIO_DEVICE(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271) },
{}
};
MODULE_DEVICE_TABLE(sdio, wl1271_devices);
static void wl1271_sdio_set_block_size(struct device *child,
unsigned int blksz)
{
struct wl12xx_sdio_glue *glue = dev_get_drvdata(child->parent);
struct sdio_func *func = dev_to_sdio_func(glue->dev);
sdio_claim_host(func);
sdio_set_block_size(func, blksz);
sdio_release_host(func);
}
static int __must_check wl12xx_sdio_raw_read(struct device *child, int addr,
void *buf, size_t len, bool fixed)
{
int ret;
struct wl12xx_sdio_glue *glue = dev_get_drvdata(child->parent);
struct sdio_func *func = dev_to_sdio_func(glue->dev);
sdio_claim_host(func);
if (unlikely(addr == HW_ACCESS_ELP_CTRL_REG)) {
((u8 *)buf)[0] = sdio_f0_readb(func, addr, &ret);
dev_dbg(child->parent, "sdio read 52 addr 0x%x, byte 0x%02x\n",
addr, ((u8 *)buf)[0]);
} else {
if (fixed)
ret = sdio_readsb(func, buf, addr, len);
else
ret = sdio_memcpy_fromio(func, buf, addr, len);
dev_dbg(child->parent, "sdio read 53 addr 0x%x, %zu bytes\n",
addr, len);
}
sdio_release_host(func);
if (WARN_ON(ret))
dev_err(child->parent, "sdio read failed (%d)\n", ret);
if (unlikely(dump)) {
printk(KERN_DEBUG "wlcore_sdio: READ from 0x%04x\n", addr);
print_hex_dump(KERN_DEBUG, "wlcore_sdio: READ ",
DUMP_PREFIX_OFFSET, 16, 1,
buf, len, false);
}
return ret;
}
static int __must_check wl12xx_sdio_raw_write(struct device *child, int addr,
void *buf, size_t len, bool fixed)
{
int ret;
struct wl12xx_sdio_glue *glue = dev_get_drvdata(child->parent);
struct sdio_func *func = dev_to_sdio_func(glue->dev);
sdio_claim_host(func);
if (unlikely(dump)) {
printk(KERN_DEBUG "wlcore_sdio: WRITE to 0x%04x\n", addr);
print_hex_dump(KERN_DEBUG, "wlcore_sdio: WRITE ",
DUMP_PREFIX_OFFSET, 16, 1,
buf, len, false);
}
if (unlikely(addr == HW_ACCESS_ELP_CTRL_REG)) {
sdio_f0_writeb(func, ((u8 *)buf)[0], addr, &ret);
dev_dbg(child->parent, "sdio write 52 addr 0x%x, byte 0x%02x\n",
addr, ((u8 *)buf)[0]);
} else {
dev_dbg(child->parent, "sdio write 53 addr 0x%x, %zu bytes\n",
addr, len);
if (fixed)
ret = sdio_writesb(func, addr, buf, len);
else
ret = sdio_memcpy_toio(func, addr, buf, len);
}
sdio_release_host(func);
if (WARN_ON(ret))
dev_err(child->parent, "sdio write failed (%d)\n", ret);
return ret;
}
static int wl12xx_sdio_power_on(struct wl12xx_sdio_glue *glue)
{
int ret;
struct sdio_func *func = dev_to_sdio_func(glue->dev);
struct mmc_card *card = func->card;
ret = pm_runtime_get_sync(&card->dev);
if (ret < 0) {
pm_runtime_put_noidle(&card->dev);
dev_err(glue->dev, "%s: failed to get_sync(%d)\n",
__func__, ret);
return ret;
}
sdio_claim_host(func);
/*
* To guarantee that the SDIO card is power cycled, as required to make
* the FW programming to succeed, let's do a brute force HW reset.
*/
mmc_hw_reset(card->host);
sdio_enable_func(func);
sdio_release_host(func);
return 0;
}
static int wl12xx_sdio_power_off(struct wl12xx_sdio_glue *glue)
{
struct sdio_func *func = dev_to_sdio_func(glue->dev);
struct mmc_card *card = func->card;
sdio_claim_host(func);
sdio_disable_func(func);
sdio_release_host(func);
/* Let runtime PM know the card is powered off */
pm_runtime_put(&card->dev);
return 0;
}
static int wl12xx_sdio_set_power(struct device *child, bool enable)
{
struct wl12xx_sdio_glue *glue = dev_get_drvdata(child->parent);
if (enable)
return wl12xx_sdio_power_on(glue);
else
return wl12xx_sdio_power_off(glue);
}
static struct wl1271_if_operations sdio_ops = {
.read = wl12xx_sdio_raw_read,
.write = wl12xx_sdio_raw_write,
.power = wl12xx_sdio_set_power,
.set_block_size = wl1271_sdio_set_block_size,
};
#ifdef CONFIG_OF
static const struct wilink_family_data wl127x_data = {
.name = "wl127x",
.nvs_name = "ti-connectivity/wl127x-nvs.bin",
};
static const struct wilink_family_data wl128x_data = {
.name = "wl128x",
.nvs_name = "ti-connectivity/wl128x-nvs.bin",
};
static const struct wilink_family_data wl18xx_data = {
.name = "wl18xx",
.cfg_name = "ti-connectivity/wl18xx-conf.bin",
.nvs_name = "ti-connectivity/wl1271-nvs.bin",
};
static const struct of_device_id wlcore_sdio_of_match_table[] = {
{ .compatible = "ti,wl1271", .data = &wl127x_data },
{ .compatible = "ti,wl1273", .data = &wl127x_data },
{ .compatible = "ti,wl1281", .data = &wl128x_data },
{ .compatible = "ti,wl1283", .data = &wl128x_data },
{ .compatible = "ti,wl1285", .data = &wl128x_data },
{ .compatible = "ti,wl1801", .data = &wl18xx_data },
{ .compatible = "ti,wl1805", .data = &wl18xx_data },
{ .compatible = "ti,wl1807", .data = &wl18xx_data },
{ .compatible = "ti,wl1831", .data = &wl18xx_data },
{ .compatible = "ti,wl1835", .data =
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