static int __init gpio_test_init(void)
{
const struct wl12xx_platform_data *wlan_data;
wlan_data = wl12xx_get_platform_data();
bt_enable_pin = wlan_data->bt_enable_gpio;
/* Default to alpha EVM in case the element is not initialized */
if (! bt_enable_pin)
{
pr_info("BT Enable pin is not initialized, defaulting to EVM Rev 1.0A.\n");
bt_enable_pin = GPIO_TO_PIN(1, 31);
}
/* Select pad conf register based on EVM board rev */
if ( bt_enable_pin == GPIO_TO_PIN(3, 21) )
selected_pad = AM33XX_CONTROL_PADCONF_MCASP0_AHCLKX_OFFSET;
else
selected_pad = AM33XX_CONTROL_PADCONF_GPMC_CSN2_OFFSET;
printk("Gpio value is :%d\n", bt_enable_pin);
gpio_direction_output(bt_enable_pin, 0);
msleep(1);
printk("WL1271: BT Enable\n");
gpio_direction_output(bt_enable_pin, 1);
/* Enable pullup on the enable pin for keeping BT active during suspend */
pad_mux_value = readl(AM33XX_CTRL_REGADDR(selected_pad));
pad_mux_value &= (~AM33XX_PULL_DISA);
writel(pad_mux_value, AM33XX_CTRL_REGADDR(selected_pad));
return 0;
}
static struct wl12xx_platform_data *get_platform_data(struct device *dev)
{
struct wl12xx_platform_data *pdata;
struct device_node __maybe_unused *np;
pdata = wl12xx_get_platform_data();
if (!IS_ERR(pdata))
return kmemdup(pdata, sizeof(*pdata), GFP_KERNEL);
#ifdef CONFIG_OF
/* first, try looking for "upstream" dt */
pdata = wlcore_probe_of(dev);
if (pdata)
return pdata;
/* if not found, look for our deprecated dt */
np = of_find_matching_node(NULL, wlcore_of_match);
if (!np) {
dev_err(dev, "No platform data set\n");
return NULL;
}
pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
if (!pdata) {
dev_err(dev, "Can't allocate platform data\n");
return NULL;
}
if (of_property_read_u32(np, "irq", &pdata->irq)) {
u32 gpio;
if (!of_property_read_u32(np, "gpio", &gpio) &&
!gpio_request_one(gpio, GPIOF_IN, "wlcore_irq"))
pdata->gpio = gpio;
}
/* Optional fields */
pdata->use_eeprom = of_property_read_bool(np, "use-eeprom");
of_property_read_u32(np, "board-ref-clock", &pdata->board_ref_clock);
of_property_read_u32(np, "board-tcxo-clock", &pdata->board_tcxo_clock);
of_property_read_u32(np, "platform-quirks", &pdata->platform_quirks);
#endif
if (IS_ERR(pdata))
return NULL;
return pdata;
}
static int wl1271_probe(struct sdio_func *func,
const struct sdio_device_id *id)
{
struct wlcore_platdev_data pdev_data;
struct wl12xx_sdio_glue *glue;
struct resource res[1];
mmc_pm_flag_t mmcflags;
int ret = -ENOMEM;
const char *chip_family;
/* We are only able to handle the wlan function */
if (func->num != 0x02)
return -ENODEV;
memset(&pdev_data, 0x00, sizeof(pdev_data));
pdev_data.if_ops = &sdio_ops;
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
if (!glue) {
dev_err(&func->dev, "can't allocate glue\n");
goto out;
}
glue->dev = &func->dev;
/* Grab access to FN0 for ELP reg. */
func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
/* Use block mode for transferring over one block size of data */
func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
pdev_data.pdata = wl12xx_get_platform_data();
if (IS_ERR(pdev_data.pdata)) {
ret = PTR_ERR(pdev_data.pdata);
dev_err(glue->dev, "missing wlan platform data: %d\n", ret);
goto out_free_glue;
}
/* if sdio can keep power while host is suspended, enable wow */
mmcflags = sdio_get_host_pm_caps(func);
dev_dbg(glue->dev, "sdio PM caps = 0x%x\n", mmcflags);
if (mmcflags & MMC_PM_KEEP_POWER)
pdev_data.pdata->pwr_in_suspend = true;
sdio_set_drvdata(func, glue);
/* Tell PM core that we don't need the card to be powered now */
pm_runtime_put_noidle(&func->dev);
/*
* Due to a hardware bug, we can't differentiate wl18xx from
* wl12xx, because both report the same device ID. The only
* way to differentiate is by checking the SDIO revision,
* which is 3.00 on the wl18xx chips.
*/
if (func->card->cccr.sdio_vsn == SDIO_SDIO_REV_3_00)
chip_family = "wl18xx";
else
chip_family = "wl12xx";
glue->core = platform_device_alloc(chip_family, PLATFORM_DEVID_AUTO);
if (!glue->core) {
dev_err(glue->dev, "can't allocate platform_device");
ret = -ENOMEM;
goto out_free_glue;
}
glue->core->dev.parent = &func->dev;
memset(res, 0x00, sizeof(res));
res[0].start = pdev_data.pdata->irq;
res[0].flags = IORESOURCE_IRQ;
res[0].name = "irq";
ret = platform_device_add_resources(glue->core, res, ARRAY_SIZE(res));
if (ret) {
dev_err(glue->dev, "can't add resources\n");
goto out_dev_put;
}
ret = platform_device_add_data(glue->core, &pdev_data,
sizeof(pdev_data));
if (ret) {
dev_err(glue->dev, "can't add platform data\n");
goto out_dev_put;
}
ret = platform_device_add(glue->core);
if (ret) {
dev_err(glue->dev, "can't add platform device\n");
goto out_dev_put;
}
return 0;
out_dev_put:
platform_device_put(glue->core);
out_free_glue:
kfree(glue);
out:
return ret;
}
static int __devinit wl1271_probe(struct sdio_func *func,
const struct sdio_device_id *id)
{
struct ieee80211_hw *hw;
const struct wl12xx_platform_data *wlan_data;
struct wl1271 *wl;
unsigned long irqflags;
int ret;
/* We are only able to handle the wlan function */
if (func->num != 0x02)
return -ENODEV;
hw = wl1271_alloc_hw();
if (IS_ERR(hw))
return PTR_ERR(hw);
wl = hw->priv;
wl->if_priv = func;
wl->if_ops = &sdio_ops;
/* Grab access to FN0 for ELP reg. */
func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
/* Use block mode for transferring over one block size of data */
//func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
wlan_data = wl12xx_get_platform_data();
if (IS_ERR(wlan_data)) {
ret = PTR_ERR(wlan_data);
wl1271_error("missing wlan platform data: %d", ret);
goto out_free;
}
wl->irq = wlan_data->irq;
if (wl->ref_clock < 0)
wl->ref_clock = wlan_data->board_ref_clock;
if (wl->tcxo_clock < 0)
wl->tcxo_clock = wlan_data->board_tcxo_clock;
wl->platform_quirks = wlan_data->platform_quirks;
if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
irqflags = IRQF_TRIGGER_RISING;
else
irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT;
ret = request_threaded_irq(wl->irq, wl1271_hardirq, wl1271_irq,
irqflags,
DRIVER_NAME, wl);
if (ret < 0) {
wl1271_error("request_irq() failed: %d", ret);
goto out_free;
}
disable_irq(wl->irq);
sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
ret = wl1271_init_ieee80211(wl);
if (ret)
goto out_irq;
ret = wl1271_register_hw(wl);
if (ret)
goto out_irq;
sdio_set_drvdata(func, wl);
/* Tell PM core that we don't need the card to be powered now */
pm_runtime_put_noidle(&func->dev);
mmc_power_save_host(func->card->host);
return 0;
out_irq:
free_irq(wl->irq, wl);
out_free:
wl1271_free_hw(wl);
return ret;
}
static int wl1251_sdio_probe(struct sdio_func *func,
const struct sdio_device_id *id)
{
int ret, t;
struct wl1251 *wl;
struct ieee80211_hw *hw;
struct wl1251_sdio *wl_sdio;
const struct wl12xx_platform_data *wl12xx_board_data;
hw = wl1251_alloc_hw();
if (IS_ERR(hw))
return PTR_ERR(hw);
wl = hw->priv;
wl_sdio = kzalloc(sizeof(*wl_sdio), GFP_KERNEL);
if (wl_sdio == NULL) {
ret = -ENOMEM;
goto out_free_hw;
}
sdio_claim_host(func);
ret = sdio_enable_func(func);
if (ret)
goto release;
sdio_set_block_size(func, 512);
sdio_release_host(func);
SET_IEEE80211_DEV(hw, &func->dev);
wl_sdio->func = func;
wl->if_priv = wl_sdio;
wl->if_ops = &wl1251_sdio_ops;
wl12xx_board_data = wl12xx_get_platform_data();
if (!IS_ERR(wl12xx_board_data)) {
wl->set_power = wl12xx_board_data->set_power;
wl->irq = wl12xx_board_data->irq;
wl->use_eeprom = wl12xx_board_data->use_eeprom;
}
if (force_nvs_file)
wl->use_eeprom = false;
wl->dump_eeprom = dump_eeprom;
if (wl->irq) {
irq_set_status_flags(wl->irq, IRQ_NOAUTOEN);
ret = request_threaded_irq(wl->irq, NULL, wl1251_irq,
IRQF_ONESHOT, "wl1251", wl);
if (ret < 0) {
wl1251_error("request_irq() failed: %d", ret);
goto disable;
}
irq_set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
wl1251_sdio_ops.enable_irq = wl1251_enable_line_irq;
wl1251_sdio_ops.disable_irq = wl1251_disable_line_irq;
wl1251_info("using dedicated interrupt line");
} else {
wl1251_sdio_ops.enable_irq = wl1251_sdio_enable_irq;
wl1251_sdio_ops.disable_irq = wl1251_sdio_disable_irq;
wl1251_info("using SDIO interrupt");
}
ret = wl1251_init_ieee80211(wl);
if (ret)
goto out_free_irq;
sdio_set_drvdata(func, wl);
for (t = 0; t < ARRAY_SIZE(wl1251_attrs); t++) {
ret = device_create_file(&func->dev, &wl1251_attrs[t]);
if (ret) {
while (--t >= 0)
device_remove_file(&func->dev,
&wl1251_attrs[t]);
goto out_free_irq;
}
}
/* Tell PM core that we don't need the card to be powered now */
pm_runtime_put_noidle(&func->dev);
return ret;
out_free_irq:
if (wl->irq)
free_irq(wl->irq, wl);
disable:
sdio_claim_host(func);
sdio_disable_func(func);
release:
sdio_release_host(func);
kfree(wl_sdio);
out_free_hw:
wl1251_free_hw(wl);
return ret;
}
static int __devinit wl1271_probe(struct sdio_func *func,
const struct sdio_device_id *id)
{
struct ieee80211_hw *hw;
const struct wl12xx_platform_data *wlan_data;
struct wl1271 *wl;
unsigned long irqflags;
mmc_pm_flag_t mmcflags;
int ret;
/* We are only able to handle the wlan function */
if (func->num != 0x02)
return -ENODEV;
hw = wl1271_alloc_hw();
if (IS_ERR(hw))
return PTR_ERR(hw);
wl = hw->priv;
wl->if_priv = func;
wl->if_ops = &sdio_ops;
/* Grab access to FN0 for ELP reg. */
func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
/* Use block mode for transferring over one block size of data */
func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
wlan_data = wl12xx_get_platform_data();
if (IS_ERR(wlan_data)) {
ret = PTR_ERR(wlan_data);
wl1271_error("missing wlan platform data: %d", ret);
goto out_free;
}
wl->irq = wlan_data->irq;
wl->ref_clock = wlan_data->board_ref_clock;
wl->tcxo_clock = wlan_data->board_tcxo_clock;
wl->platform_quirks = wlan_data->platform_quirks;
if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
irqflags = IRQF_TRIGGER_RISING;
else
irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT;
ret = request_threaded_irq(wl->irq, wl1271_hardirq, wl1271_irq,
irqflags,
DRIVER_NAME, wl);
if (ret < 0) {
wl1271_error("request_irq() failed: %d", ret);
goto out_free;
}
enable_irq_wake(wl->irq);
device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 1);
disable_irq(wl->irq);
/* if sdio can keep power while host is suspended, enable wow */
mmcflags = sdio_get_host_pm_caps(func);
wl1271_debug(DEBUG_SDIO, "sdio PM caps = 0x%x", mmcflags);
if (mmcflags & MMC_PM_KEEP_POWER)
hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY;
ret = wl1271_init_ieee80211(wl);
if (ret)
goto out_irq;
ret = wl1271_register_hw(wl);
if (ret)
goto out_irq;
sdio_set_drvdata(func, wl);
/* Tell PM core that we don't need the card to be powered now */
pm_runtime_put_noidle(&func->dev);
wl->set_power = wlan_data->set_power;
wl1271_notice("initialized");
return 0;
out_irq:
free_irq(wl->irq, wl);
out_free:
wl1271_free_hw(wl);
return ret;
}
static int __devinit wl1271_probe(struct sdio_func *func,
const struct sdio_device_id *id)
{
struct ieee80211_hw *hw;
const struct wl12xx_platform_data *wlan_data;
struct wl1271 *wl;
int ret;
/* We are only able to handle the wlan function */
if (func->num != 0x02)
return -ENODEV;
hw = wl1271_alloc_hw();
if (IS_ERR(hw))
return PTR_ERR(hw);
wl = hw->priv;
wl->if_priv = func;
wl->if_ops = &sdio_ops;
/* Grab access to FN0 for ELP reg. */
func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
wlan_data = wl12xx_get_platform_data();
if (IS_ERR(wlan_data)) {
ret = PTR_ERR(wlan_data);
wl1271_error("missing wlan platform data: %d", ret);
goto out_free;
}
wl->irq = wlan_data->irq;
wl->ref_clock = wlan_data->board_ref_clock;
ret = request_irq(wl->irq, wl1271_irq, 0, DRIVER_NAME, wl);
if (ret < 0) {
wl1271_error("request_irq() failed: %d", ret);
goto out_free;
}
set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
disable_irq(wl->irq);
ret = wl1271_init_ieee80211(wl);
if (ret)
goto out_irq;
ret = wl1271_register_hw(wl);
if (ret)
goto out_irq;
sdio_set_drvdata(func, wl);
/* Tell PM core that we don't need the card to be powered now */
pm_runtime_put_noidle(&func->dev);
wl1271_notice("initialized");
return 0;
out_irq:
free_irq(wl->irq, wl);
out_free:
wl1271_free_hw(wl);
return ret;
}
static int __devinit wl1271_probe(struct sdio_func *func,
const struct sdio_device_id *id)
{
const struct wl12xx_platform_data *wlan_data;
struct wl1271 *wl;
struct wl1271_test *wl_test;
int ret = 0;
/* wl1271 has 2 sdio functions we handle just the wlan part */
if (func->num != 0x02)
return -ENODEV;
wl_test = kzalloc(sizeof(struct wl1271_test), GFP_KERNEL);
if (!wl_test) {
dev_err(&func->dev, "Could not allocate memory\n");
return -ENOMEM;
}
wl = &wl_test->wl;
wl->if_priv = func;
wl->if_ops = &sdio_ops;
/* Grab access to FN0 for ELP reg. */
func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
/* Use block mode for transferring over one block size of data */
func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
wlan_data = wl12xx_get_platform_data();
if (IS_ERR(wlan_data)) {
ret = PTR_ERR(wlan_data);
dev_err(&func->dev, "missing wlan platform data: %d\n", ret);
goto out_free;
}
wl->irq = wlan_data->irq;
wl->ref_clock = wlan_data->board_ref_clock;
wl->tcxo_clock = wlan_data->board_tcxo_clock;
sdio_set_drvdata(func, wl_test);
/* power up the device */
ret = wl1271_chip_wakeup(wl);
if (ret) {
dev_err(&func->dev, "could not wake up chip\n");
goto out_free;
}
if (wl->fw == NULL) {
ret = wl1271_fetch_firmware(wl);
if (ret < 0) {
dev_err(&func->dev, "firmware fetch error\n");
goto out_off;
}
}
/* fetch NVS */
if (wl->nvs == NULL) {
ret = wl1271_fetch_nvs(wl);
if (ret < 0) {
dev_err(&func->dev, "NVS fetch error\n");
goto out_off;
}
}
ret = wl1271_load_firmware(wl);
if (ret < 0) {
dev_err(&func->dev, "firmware load error: %d\n", ret);
goto out_free;
}
dev_info(&func->dev, "initialized\n");
/* I/O testing will be done in the tester thread */
wl_test->test_task = kthread_run(tester, wl, "sdio_tester");
if (IS_ERR(wl_test->test_task)) {
dev_err(&func->dev, "unable to create kernel thread\n");
ret = PTR_ERR(wl_test->test_task);
goto out_free;
}
return 0;
out_off:
/* power off the chip */
wl1271_power_off(wl);
out_free:
kfree(wl_test);
return ret;
}
