evie/android_kernel_oneplus_msm8998
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brcmfmac: assure USB dongle firmware is reset upon module unload

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Upon unloading the brcmfmac module the USB firmware should be reset
as the device remains powered. The reset assures a known device
state when a new brcmfmac driver load is being done.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arend van Spriel 2013-01-02 15:22:40 +01:00 • committed by John W. Linville
parent ac744395ba
commit 81d5f1bbc4
4 changed files with 27 additions and 1 deletions
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1
drivers/net/wireless/brcm80211/brcmfmac/dhd.h
View file

@ -39,6 +39,7 @@
#define BRCMF_C_GET_BSSID 23 #define BRCMF_C_GET_BSSID 23
#define BRCMF_C_GET_SSID 25 #define BRCMF_C_GET_SSID 25
#define BRCMF_C_SET_SSID 26 #define BRCMF_C_SET_SSID 26
#define BRCMF_C_TERMINATED 28
#define BRCMF_C_GET_CHANNEL 29 #define BRCMF_C_GET_CHANNEL 29
#define BRCMF_C_SET_CHANNEL 30 #define BRCMF_C_SET_CHANNEL 30
#define BRCMF_C_GET_SRL 31 #define BRCMF_C_GET_SRL 31

3
drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
View file

@ -154,7 +154,8 @@ static inline void brcmf_rx_packet(struct device *dev, int ifidx,
extern int brcmf_attach(uint bus_hdrlen, struct device *dev); extern int brcmf_attach(uint bus_hdrlen, struct device *dev);
/* Indication from bus module regarding removal/absence of dongle */ /* Indication from bus module regarding removal/absence of dongle */
extern void brcmf_detach(struct device *dev); extern void brcmf_detach(struct device *dev);
/* Indication from bus module that dongle should be reset */
extern void brcmf_dev_reset(struct device *dev);
/* Indication from bus module to change flow-control state */ /* Indication from bus module to change flow-control state */
extern void brcmf_txflowblock(struct device *dev, bool state); extern void brcmf_txflowblock(struct device *dev, bool state);

11
drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
View file

@ -845,6 +845,17 @@ static void brcmf_bus_detach(struct brcmf_pub *drvr)
} }
} }
void brcmf_dev_reset(struct device *dev)
{
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
struct brcmf_pub *drvr = bus_if->drvr;
if (drvr == NULL)
return;
brcmf_fil_cmd_int_set(drvr->iflist[0], BRCMF_C_TERMINATED, 1);
}
void brcmf_detach(struct device *dev) void brcmf_detach(struct device *dev)
{ {
int i; int i;

13
drivers/net/wireless/brcm80211/brcmfmac/usb.c
View file

@ -1524,10 +1524,23 @@ static void brcmf_release_fw(struct list_head *q)
} }
} }
static int brcmf_usb_reset_device(struct device *dev, void *notused)
{
/* device past is the usb interface so we
* need to use parent here.
*/
brcmf_dev_reset(dev->parent);
return 0;
}
void brcmf_usb_exit(void) void brcmf_usb_exit(void)
{ {
struct device_driver *drv = &brcmf_usbdrvr.drvwrap.driver;
int ret;
brcmf_dbg(USB, "Enter\n"); brcmf_dbg(USB, "Enter\n");
ret = driver_for_each_device(drv, NULL, NULL,
brcmf_usb_reset_device);
usb_deregister(&brcmf_usbdrvr); usb_deregister(&brcmf_usbdrvr);
brcmf_release_fw(&fw_image_list); brcmf_release_fw(&fw_image_list);
} }