On 04/25/2013 10:12 PM, Franky Lin wrote:
It looks like the device is not powered up. Do you see the wifi chip get
enumerated by SDIO bus? There should be something like mmc0:0001:1 under
/sys/bus/sdio/devices
Just for public reference, this was the problem. I made it work with the
following patch, which adds the platform_driver as used by bcmdhd to
power up the wifi chip.
bruno
diff -Nurb
compat-drivers-3.9-rc4-2-su/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
compat-drivers-3.9-rc4-2-su-brcm/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
---
compat-drivers-3.9-rc4-2-su/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
2013-03-29 06:03:35.000000000 +0000
+++
compat-drivers-3.9-rc4-2-su-brcm/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
2013-04-29 20:17:13.686085551 +0100
@@ -27,6 +27,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <net/cfg80211.h>
+#include <linux/wlan_plat.h>
#include <defs.h>
#include <brcm_hw_ids.h>
@@ -664,11 +665,80 @@
brcmf_err("platform_driver_register failed: %d\n", ret);
}
#else
+
+static struct wifi_platform_data *wifi_control_data = NULL;
+
+int wifi_set_power(int on, unsigned long msec)
+{
+ printk("%s = %d\n", __FUNCTION__, on);
+ if (wifi_control_data && wifi_control_data->set_power) {
+ wifi_control_data->set_power(on);
+ }
+ if (msec)
+ msleep(msec);
+ return 0;
+}
+
+static int wifi_set_carddetect(int on)
+{
+ printk("%s = %d\n", __FUNCTION__, on);
+ if (wifi_control_data && wifi_control_data->set_carddetect) {
+ wifi_control_data->set_carddetect(on);
+ }
+ return 0;
+}
+
+static int wifi_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct wifi_platform_data *wifi_ctrl =
+ (struct wifi_platform_data *)(pdev->dev.platform_data);
+
+ printk("## %s\n", __FUNCTION__);
+ //wifi_irqres = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
"bcmdhd_wlan_irq");
+ wifi_control_data = wifi_ctrl;
+
+ wifi_set_power(1, 0); /* Power On */
+ wifi_set_carddetect(1); /* CardDetect (0->1) */
+
+ ret = sdio_register_driver(&brcmf_sdmmc_driver);
+ if (ret)
+ brcmf_err("sdio_register_driver failed: %d\n", ret);
+
+ return 0;
+}
+
+static int wifi_remove(struct platform_device *pdev)
+{
+ struct wifi_platform_data *wifi_ctrl =
+ (struct wifi_platform_data *)(pdev->dev.platform_data);
+
+ printk("## %s\n", __FUNCTION__);
+ wifi_control_data = wifi_ctrl;
+
+ wifi_set_power(0, 0); /* Power Off */
+ wifi_set_carddetect(0); /* CardDetect (1->0) */
+
+ //up(&wifi_control_sem);
+ return 0;
+}
+
+static struct platform_driver wifi_device = {
+ .probe = wifi_probe,
+ .remove = wifi_remove,
+// .suspend = wifi_suspend,
+// .resume = wifi_resume,
+ .driver = {
+ .name = "bcmdhd_wlan",
+ }
+};
+
void brcmf_sdio_exit(void)
{
brcmf_dbg(TRACE, "Enter\n");
sdio_unregister_driver(&brcmf_sdmmc_driver);
+ platform_driver_unregister(&wifi_device);
}
void brcmf_sdio_init(void)
@@ -677,9 +747,8 @@
brcmf_dbg(TRACE, "Enter\n");
- ret = sdio_register_driver(&brcmf_sdmmc_driver);
+ printk("SDIO init\n");
- if (ret)
- brcmf_err("sdio_register_driver failed: %d\n", ret);
+ platform_driver_register(&wifi_device);
}
#endif /* CONFIG_BRCMFMAC_SDIO_OOB */
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