From: Wen-chien Jesse Sung <jesse.sung@xxxxxxxxxxxxx> There is an user space firmware loading tool which can be found at http://marc.info/?l=linux-bluetooth&m=132039175324993&w=2 The supported firmware is in hcd format, which is a collection of hci commands. The download process would be: 1. reset command 2. download command 3. firmware image in hcd file 4. reset command /sys/kernel/debug/usb/devices before loading firmware: T: Bus=01 Lev=02 Prnt=02 Port=04 Cnt=02 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 2.00 Cls=ff(vend.) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0a5c ProdID=21d3 Rev= 1.12 S: Manufacturer=Broadcom Corp S: Product=BCM43142A0 S: SerialNumber=3859F9D6199A C:* #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none) E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none) E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none) E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none) E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none) E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none) E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none) E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none) E: Ad=84(I) Atr=02(Bulk) MxPS= 32 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 32 Ivl=0ms I:* If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none) /sys/kernel/debug/usb/devices after loading firmware: T: Bus=01 Lev=02 Prnt=02 Port=04 Cnt=02 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 2.00 Cls=ff(vend.) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0a5c ProdID=21d3 Rev= 1.12 S: Manufacturer=Broadcom Corp S: Product=BCM43142A0 S: SerialNumber=3859F9D6199A C:* #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none) E: Ad=84(I) Atr=02(Bulk) MxPS= 32 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 32 Ivl=0ms I:* If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none) Signed-off-by: Wen-chien Jesse Sung <jesse.sung@xxxxxxxxxxxxx> --- drivers/bluetooth/btusb.c | 76 +++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 73 insertions(+), 3 deletions(-) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 7a7e5f8..8cab88c 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -24,6 +24,7 @@ #include <linux/module.h> #include <linux/usb.h> #include <linux/firmware.h> +#include <linux/delay.h> #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> @@ -49,6 +50,7 @@ static struct usb_driver btusb_driver; #define BTUSB_WRONG_SCO_MTU 0x40 #define BTUSB_ATH3012 0x80 #define BTUSB_INTEL 0x100 +#define BTUSB_BCM_PATCHRAM 0x200 static struct usb_device_id btusb_table[] = { /* Generic Bluetooth USB device */ @@ -101,13 +103,13 @@ static struct usb_device_id btusb_table[] = { { USB_DEVICE(0x0b05, 0x17b5) }, { USB_DEVICE(0x04ca, 0x2003) }, { USB_DEVICE(0x0489, 0xe042) }, - { USB_DEVICE(0x413c, 0x8197) }, + { USB_DEVICE(0x413c, 0x8197), .driver_info = BTUSB_BCM_PATCHRAM }, /* Foxconn - Hon Hai */ - { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) }, + { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), .driver_info = BTUSB_BCM_PATCHRAM }, /*Broadcom devices with vendor specific id */ - { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) }, + { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), .driver_info = BTUSB_BCM_PATCHRAM }, { } /* Terminating entry */ }; @@ -1317,6 +1319,71 @@ exit_mfg_deactivate: return 0; } +static int btusb_setup_patchram_packet(struct hci_dev *hdev, u16 opcode, u32 plen, const void *param) +{ + struct sk_buff *skb; + + skb = __hci_cmd_sync(hdev, opcode, plen, param, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) + return -PTR_ERR(skb); + kfree_skb(skb); + return 0; +} + +#define PATCHRAM_NAME_LEN 20 + +static int btusb_setup_patchram(struct hci_dev *hdev) +{ + struct btusb_data *data = hci_get_drvdata(hdev); + struct usb_device *udev = data->udev; + size_t pos = 0; + int err = 0; + char filename[PATCHRAM_NAME_LEN]; + const struct firmware *fw; + u8 val = 0x00; + + snprintf(filename, PATCHRAM_NAME_LEN, "fw-%04x_%04x.hcd", + le16_to_cpu(udev->descriptor.idVendor), + le16_to_cpu(udev->descriptor.idProduct)); + if (request_firmware(&fw, (const char *) filename, &udev->dev) < 0) { + BT_INFO("can't load firmware, may not work correctly"); + return 0; + } + + err = btusb_setup_patchram_packet(hdev, 0x0c03, 1, &val); + if (err) + goto out; + + err = btusb_setup_patchram_packet(hdev, 0xfc2e, 1, &val); + if (err) + goto out; + + msleep(1000); + while (pos < fw->size) { + size_t len; + len = fw->data[pos + 2] + 3; + if (pos + len > fw->size) { + err = -EINVAL; + goto out; + } + err = btusb_setup_patchram_packet(hdev, le16_to_cpu(*(u16*)(fw->data + pos)), + fw->data[pos + 2] , &fw->data[pos + 3]); + if (err) + goto out; + pos += len; + } + + err = btusb_setup_patchram_packet(hdev, 0x0c03, 1, &val); +out: + release_firmware(fw); + if (err) { + BT_INFO("fail to load firmware"); + return err; + } + BT_INFO("firmware loaded"); + return 0; +} + static int btusb_probe(struct usb_interface *intf, const struct usb_device_id *id) { @@ -1425,6 +1492,9 @@ static int btusb_probe(struct usb_interface *intf, if (id->driver_info & BTUSB_INTEL) hdev->setup = btusb_setup_intel; + if (id->driver_info & BTUSB_BCM_PATCHRAM) + hdev->setup = btusb_setup_patchram; + /* Interface numbers are hardcoded in the specification */ data->isoc = usb_ifnum_to_if(data->udev, 1); -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
