Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
[linux-2.6.git] / drivers / bluetooth / ath3k.c
index 6dcd55a..5577ed6 100644 (file)
 
 #define VERSION "1.0"
 
+#define ATH3K_DNLOAD                           0x01
+#define ATH3K_GETSTATE                         0x05
+#define ATH3K_SET_NORMAL_MODE                  0x07
+#define ATH3K_GETVERSION                       0x09
+#define USB_REG_SWITCH_VID_PID                 0x0a
+
+#define ATH3K_MODE_MASK                                0x3F
+#define ATH3K_NORMAL_MODE                      0x0E
+
+#define ATH3K_PATCH_UPDATE                     0x80
+#define ATH3K_SYSCFG_UPDATE                    0x40
+
+#define ATH3K_XTAL_FREQ_26M                    0x00
+#define ATH3K_XTAL_FREQ_40M                    0x01
+#define ATH3K_XTAL_FREQ_19P2                   0x02
+#define ATH3K_NAME_LEN                         0xFF
+
+struct ath3k_version {
+       unsigned int    rom_version;
+       unsigned int    build_version;
+       unsigned int    ram_version;
+       unsigned char   ref_clock;
+       unsigned char   reserved[0x07];
+};
 
 static struct usb_device_id ath3k_table[] = {
        /* Atheros AR3011 */
@@ -42,15 +66,31 @@ static struct usb_device_id ath3k_table[] = {
        /* Atheros AR9285 Malbec with sflash firmware */
        { USB_DEVICE(0x03F0, 0x311D) },
 
+       /* Atheros AR3012 with sflash firmware*/
+       { USB_DEVICE(0x0CF3, 0x3004) },
+
        /* Atheros AR5BBU12 with sflash firmware */
        { USB_DEVICE(0x0489, 0xE02C) },
+
        { }     /* Terminating entry */
 };
 
 MODULE_DEVICE_TABLE(usb, ath3k_table);
 
+#define BTUSB_ATH3012          0x80
+/* This table is to load patch and sysconfig files
+ * for AR3012 */
+static struct usb_device_id ath3k_blist_tbl[] = {
+
+       /* Atheros AR3012 with sflash firmware*/
+       { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
+
+       { }     /* Terminating entry */
+};
+
 #define USB_REQ_DFU_DNLOAD     1
 #define BULK_SIZE              4096
+#define FW_HDR_SIZE            20
 
 static int ath3k_load_firmware(struct usb_device *udev,
                                const struct firmware *firmware)
@@ -106,28 +146,265 @@ error:
        return err;
 }
 
+static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
+{
+       int pipe = 0;
+
+       pipe = usb_rcvctrlpipe(udev, 0);
+       return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
+                       USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
+                       state, 0x01, USB_CTRL_SET_TIMEOUT);
+}
+
+static int ath3k_get_version(struct usb_device *udev,
+                       struct ath3k_version *version)
+{
+       int pipe = 0;
+
+       pipe = usb_rcvctrlpipe(udev, 0);
+       return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
+                       USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, version,
+                       sizeof(struct ath3k_version),
+                       USB_CTRL_SET_TIMEOUT);
+}
+
+static int ath3k_load_fwfile(struct usb_device *udev,
+               const struct firmware *firmware)
+{
+       u8 *send_buf;
+       int err, pipe, len, size, count, sent = 0;
+       int ret;
+
+       count = firmware->size;
+
+       send_buf = kmalloc(BULK_SIZE, GFP_ATOMIC);
+       if (!send_buf) {
+               BT_ERR("Can't allocate memory chunk for firmware");
+               return -ENOMEM;
+       }
+
+       size = min_t(uint, count, FW_HDR_SIZE);
+       memcpy(send_buf, firmware->data, size);
+
+       pipe = usb_sndctrlpipe(udev, 0);
+       ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
+                       USB_TYPE_VENDOR, 0, 0, send_buf,
+                       size, USB_CTRL_SET_TIMEOUT);
+       if (ret < 0) {
+               BT_ERR("Can't change to loading configuration err");
+               kfree(send_buf);
+               return ret;
+       }
+
+       sent += size;
+       count -= size;
+
+       while (count) {
+               size = min_t(uint, count, BULK_SIZE);
+               pipe = usb_sndbulkpipe(udev, 0x02);
+
+               memcpy(send_buf, firmware->data + sent, size);
+
+               err = usb_bulk_msg(udev, pipe, send_buf, size,
+                                       &len, 3000);
+               if (err || (len != size)) {
+                       BT_ERR("Error in firmware loading err = %d,"
+                               "len = %d, size = %d", err, len, size);
+                       kfree(send_buf);
+                       return err;
+               }
+               sent  += size;
+               count -= size;
+       }
+
+       kfree(send_buf);
+       return 0;
+}
+
+static int ath3k_switch_pid(struct usb_device *udev)
+{
+       int pipe = 0;
+
+       pipe = usb_sndctrlpipe(udev, 0);
+       return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
+                       USB_TYPE_VENDOR, 0, 0,
+                       NULL, 0, USB_CTRL_SET_TIMEOUT);
+}
+
+static int ath3k_set_normal_mode(struct usb_device *udev)
+{
+       unsigned char fw_state;
+       int pipe = 0, ret;
+
+       ret = ath3k_get_state(udev, &fw_state);
+       if (ret < 0) {
+               BT_ERR("Can't get state to change to normal mode err");
+               return ret;
+       }
+
+       if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
+               BT_DBG("firmware was already in normal mode");
+               return 0;
+       }
+
+       pipe = usb_sndctrlpipe(udev, 0);
+       return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
+                       USB_TYPE_VENDOR, 0, 0,
+                       NULL, 0, USB_CTRL_SET_TIMEOUT);
+}
+
+static int ath3k_load_patch(struct usb_device *udev)
+{
+       unsigned char fw_state;
+       char filename[ATH3K_NAME_LEN] = {0};
+       const struct firmware *firmware;
+       struct ath3k_version fw_version, pt_version;
+       int ret;
+
+       ret = ath3k_get_state(udev, &fw_state);
+       if (ret < 0) {
+               BT_ERR("Can't get state to change to load ram patch err");
+               return ret;
+       }
+
+       if (fw_state & ATH3K_PATCH_UPDATE) {
+               BT_DBG("Patch was already downloaded");
+               return 0;
+       }
+
+       ret = ath3k_get_version(udev, &fw_version);
+       if (ret < 0) {
+               BT_ERR("Can't get version to change to load ram patch err");
+               return ret;
+       }
+
+       snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
+               fw_version.rom_version);
+
+       ret = request_firmware(&firmware, filename, &udev->dev);
+       if (ret < 0) {
+               BT_ERR("Patch file not found %s", filename);
+               return ret;
+       }
+
+       pt_version.rom_version = *(int *)(firmware->data + firmware->size - 8);
+       pt_version.build_version = *(int *)
+               (firmware->data + firmware->size - 4);
+
+       if ((pt_version.rom_version != fw_version.rom_version) ||
+               (pt_version.build_version <= fw_version.build_version)) {
+               BT_ERR("Patch file version did not match with firmware");
+               release_firmware(firmware);
+               return -EINVAL;
+       }
+
+       ret = ath3k_load_fwfile(udev, firmware);
+       release_firmware(firmware);
+
+       return ret;
+}
+
+static int ath3k_load_syscfg(struct usb_device *udev)
+{
+       unsigned char fw_state;
+       char filename[ATH3K_NAME_LEN] = {0};
+       const struct firmware *firmware;
+       struct ath3k_version fw_version;
+       int clk_value, ret;
+
+       ret = ath3k_get_state(udev, &fw_state);
+       if (ret < 0) {
+               BT_ERR("Can't get state to change to load configration err");
+               return -EBUSY;
+       }
+
+       ret = ath3k_get_version(udev, &fw_version);
+       if (ret < 0) {
+               BT_ERR("Can't get version to change to load ram patch err");
+               return ret;
+       }
+
+       switch (fw_version.ref_clock) {
+
+       case ATH3K_XTAL_FREQ_26M:
+               clk_value = 26;
+               break;
+       case ATH3K_XTAL_FREQ_40M:
+               clk_value = 40;
+               break;
+       case ATH3K_XTAL_FREQ_19P2:
+               clk_value = 19;
+               break;
+       default:
+               clk_value = 0;
+               break;
+       }
+
+       snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
+               fw_version.rom_version, clk_value, ".dfu");
+
+       ret = request_firmware(&firmware, filename, &udev->dev);
+       if (ret < 0) {
+               BT_ERR("Configuration file not found %s", filename);
+               return ret;
+       }
+
+       ret = ath3k_load_fwfile(udev, firmware);
+       release_firmware(firmware);
+
+       return ret;
+}
+
 static int ath3k_probe(struct usb_interface *intf,
                        const struct usb_device_id *id)
 {
        const struct firmware *firmware;
        struct usb_device *udev = interface_to_usbdev(intf);
+       int ret;
 
        BT_DBG("intf %p id %p", intf, id);
 
        if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
                return -ENODEV;
 
-       if (request_firmware(&firmware, "ath3k-1.fw", &udev->dev) < 0) {
-               return -EIO;
+       /* match device ID in ath3k blacklist table */
+       if (!id->driver_info) {
+               const struct usb_device_id *match;
+               match = usb_match_id(intf, ath3k_blist_tbl);
+               if (match)
+                       id = match;
        }
 
-       if (ath3k_load_firmware(udev, firmware)) {
-               release_firmware(firmware);
+       /* load patch and sysconfig files for AR3012 */
+       if (id->driver_info & BTUSB_ATH3012) {
+               ret = ath3k_load_patch(udev);
+               if (ret < 0) {
+                       BT_ERR("Loading patch file failed");
+                       return ret;
+               }
+               ret = ath3k_load_syscfg(udev);
+               if (ret < 0) {
+                       BT_ERR("Loading sysconfig file failed");
+                       return ret;
+               }
+               ret = ath3k_set_normal_mode(udev);
+               if (ret < 0) {
+                       BT_ERR("Set normal mode failed");
+                       return ret;
+               }
+               ath3k_switch_pid(udev);
+               return 0;
+       }
+
+       if (request_firmware(&firmware, "ath3k-1.fw", &udev->dev) < 0) {
+               BT_ERR("Error loading firmware");
                return -EIO;
        }
+
+       ret = ath3k_load_firmware(udev, firmware);
        release_firmware(firmware);
 
-       return 0;
+       return ret;
 }
 
 static void ath3k_disconnect(struct usb_interface *intf)