diff -drupN a/drivers/bluetooth/rtk_btusb.c b/drivers/bluetooth/rtk_btusb.c --- a/drivers/bluetooth/rtk_btusb.c 1970-01-01 03:00:00.000000000 +0300 +++ b/drivers/bluetooth/rtk_btusb.c 2022-06-12 05:28:14.000000000 +0300 @@ -0,0 +1,3897 @@ +/* + * + * Realtek Bluetooth USB driver + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include "rtk_btusb.h" + +#define RTKBT_RELEASE_NAME "20170427_TV_ANDROID_5.x" +#define VERSION "4.1.4" + +#define SUSPNED_DW_FW 0 +#define SET_WAKEUP_DEVICE 0 + + +static spinlock_t queue_lock; +static spinlock_t dlfw_lock; +static volatile uint16_t dlfw_dis_state; + +#if SUSPNED_DW_FW +static firmware_info *fw_info_4_suspend; +#endif + +static patch_info fw_patch_table[] = { +/* { vid, pid, lmp_sub_default, lmp_sub, everion, mp_fw_name, fw_name, config_name, fw_cache, fw_len, mac_offset } */ +{ 0x0BDA, 0x1724, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723A */ +{ 0x0BDA, 0x8723, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* 8723AE */ +{ 0x0BDA, 0xA723, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* 8723AE for LI */ +{ 0x0BDA, 0x0723, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* 8723AE */ +{ 0x13D3, 0x3394, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* 8723AE for Azurewave*/ + +{ 0x0BDA, 0x0724, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* 8723AU */ +{ 0x0BDA, 0x8725, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* 8723AU */ +{ 0x0BDA, 0x872A, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* 8723AU */ +{ 0x0BDA, 0x872B, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* 8723AU */ + +{ 0x0BDA, 0xb720, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723bu_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723BU */ +{ 0x0BDA, 0xb72A, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723bu_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723BU */ +{ 0x0BDA, 0xb728, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723BE for LC */ +{ 0x0BDA, 0xb723, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723BE */ +{ 0x0BDA, 0xb72B, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723BE */ +{ 0x0BDA, 0xb001, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723BE for HP */ +{ 0x0BDA, 0xb002, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723BE */ +{ 0x0BDA, 0xb003, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723BE */ +{ 0x0BDA, 0xb004, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723BE */ +{ 0x0BDA, 0xb005, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723BE */ + +{ 0x13D3, 0x3410, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723BE for Azurewave */ +{ 0x13D3, 0x3416, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723BE for Azurewave */ +{ 0x13D3, 0x3459, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723BE for Azurewave */ +{ 0x0489, 0xE085, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723BE for Foxconn */ +{ 0x0489, 0xE08B, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8723BE for Foxconn */ + +{ 0x0BDA, 0x2850, 0x8761, 0, 0, "mp_rtl8761a_fw", "rtl8761au_fw", "rtl8761a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8761AU */ +{ 0x0BDA, 0xA761, 0x8761, 0, 0, "mp_rtl8761a_fw", "rtl8761au_fw", "rtl8761a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8761AU only */ +{ 0x0BDA, 0x818B, 0x8761, 0, 0, "mp_rtl8761a_fw", "rtl8761aw8192eu_fw", "rtl8761aw8192eu_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8761AW + 8192EU */ +{ 0x0BDA, 0x818C, 0x8761, 0, 0, "mp_rtl8761a_fw", "rtl8761aw8192eu_fw", "rtl8761aw8192eu_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8761AW + 8192EU */ +{ 0x0BDA, 0x8760, 0x8761, 0, 0, "mp_rtl8761a_fw", "rtl8761au8192ee_fw", "rtl8761a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8761AU + 8192EE */ +{ 0x0BDA, 0xB761, 0x8761, 0, 0, "mp_rtl8761a_fw", "rtl8761au_fw", "rtl8761a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8761AUV only */ +{ 0x0BDA, 0x8761, 0x8761, 0, 0, "mp_rtl8761a_fw", "rtl8761au8192ee_fw", "rtl8761a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8761AU + 8192EE for LI */ +{ 0x0BDA, 0x8A60, 0x8761, 0, 0, "mp_rtl8761a_fw", "rtl8761au8812ae_fw", "rtl8761a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8761AU + 8812AE */ + +{ 0x0BDA, 0x8821, 0x8821, 0, 0, "mp_rtl8821a_fw", "rtl8821a_fw", "rtl8821a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8821AE */ +{ 0x0BDA, 0x0821, 0x8821, 0, 0, "mp_rtl8821a_fw", "rtl8821a_fw", "rtl8821a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8821AE */ +{ 0x0BDA, 0x0823, 0x8821, 0, 0, "mp_rtl8821a_fw", "rtl8821a_fw", "rtl8821a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8821AU */ +{ 0x13D3, 0x3414, 0x8821, 0, 0, "mp_rtl8821a_fw", "rtl8821a_fw", "rtl8821a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8821AE */ +{ 0x13D3, 0x3458, 0x8821, 0, 0, "mp_rtl8821a_fw", "rtl8821a_fw", "rtl8821a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8821AE */ +{ 0x13D3, 0x3461, 0x8821, 0, 0, "mp_rtl8821a_fw", "rtl8821a_fw", "rtl8821a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8821AE */ +{ 0x13D3, 0x3462, 0x8821, 0, 0, "mp_rtl8821a_fw", "rtl8821a_fw", "rtl8821a_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_1_2, MAX_PATCH_SIZE_24K}, /* RTL8821AE */ + +{ 0x0BDA, 0xB822, 0x8822, 0, 0, "mp_rtl8822b_fw", "rtl8822b_fw", "rtl8822b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_3PLUS, MAX_PATCH_SIZE_24K}, /* RTL8822BE */ +{ 0x0BDA, 0xB82C, 0x8822, 0, 0, "mp_rtl8822b_fw", "rtl8822b_fw", "rtl8822b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_3PLUS, MAX_PATCH_SIZE_24K}, /* RTL8822BU */ +{ 0x0BDA, 0xB023, 0x8822, 0, 0, "mp_rtl8822b_fw", "rtl8822b_fw", "rtl8822b_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_3PLUS, MAX_PATCH_SIZE_24K}, /* RTL8822BE */ +{ 0x0BDA, 0xB703, 0x8703, 0, 0, "mp_rtl8723c_fw", "rtl8723c_fw", "rtl8723c_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_3PLUS, MAX_PATCH_SIZE_24K}, /* RTL8723CU */ +/* todo: RTL8703BU */ + +{ 0x0BDA, 0xD723, 0x8723, 0, 0, "mp_rtl8723d_fw", "rtl8723d_fw", "rtl8723d_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_3PLUS, MAX_PATCH_SIZE_40K}, /* RTL8723DU */ +{ 0x0BDA, 0xD720, 0x8723, 0, 0, "mp_rtl8723d_fw", "rtl8723d_fw", "rtl8723d_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_3PLUS, MAX_PATCH_SIZE_40K}, /* RTL8723DE */ +{ 0x0BDA, 0xB820, 0x8821, 0, 0, "mp_rtl8821c_fw", "rtl8821c_fw", "rtl8821c_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_3PLUS, MAX_PATCH_SIZE_40K}, /* RTL8821CU */ +{ 0x0BDA, 0xC820, 0x8821, 0, 0, "mp_rtl8821c_fw", "rtl8821c_fw", "rtl8821c_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_3PLUS, MAX_PATCH_SIZE_40K}, /* RTL8821CU */ +{ 0x0BDA, 0xC821, 0x8821, 0, 0, "mp_rtl8821c_fw", "rtl8821c_fw", "rtl8821c_config", NULL, 0, CONFIG_MAC_OFFSET_GEN_3PLUS, MAX_PATCH_SIZE_40K}, /* RTL8821CE */ +/* todo: RTL8703CU */ + +/* NOTE: must append patch entries above the null entry */ +{ 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, 0, 0 } +}; + +struct btusb_data { + struct hci_dev *hdev; + struct usb_device *udev; + struct usb_interface *intf; + struct usb_interface *isoc; + + spinlock_t lock; + + unsigned long flags; + + struct work_struct work; + struct work_struct waker; + + struct usb_anchor tx_anchor; + struct usb_anchor intr_anchor; + struct usb_anchor bulk_anchor; + struct usb_anchor isoc_anchor; + struct usb_anchor deferred; + int tx_in_flight; + spinlock_t txlock; + + struct usb_endpoint_descriptor *intr_ep; + struct usb_endpoint_descriptor *bulk_tx_ep; + struct usb_endpoint_descriptor *bulk_rx_ep; + struct usb_endpoint_descriptor *isoc_tx_ep; + struct usb_endpoint_descriptor *isoc_rx_ep; + + __u8 cmdreq_type; + + unsigned int sco_num; + int isoc_altsetting; + int suspend_count; +/* #ifdef CONFIG_HAS_EARLYSUSPEND */ +#if 0 + struct early_suspend early_suspend; +#else + struct notifier_block pm_notifier; + struct notifier_block reboot_notifier; +#endif + firmware_info *fw_info; +}; +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 1) +static bool reset_on_close; +#endif + +int download_patch(firmware_info *fw_info, int cached); + +static inline int check_set_dlfw_state_value(uint16_t change_value) +{ + spin_lock(&dlfw_lock); + if (!dlfw_dis_state) { + dlfw_dis_state = change_value; + } + spin_unlock(&dlfw_lock); + return dlfw_dis_state; +} + +static inline void set_dlfw_state_value(uint16_t change_value) +{ + spin_lock(&dlfw_lock); + dlfw_dis_state = change_value; + spin_unlock(&dlfw_lock); +} + +#if SUSPNED_DW_FW +static int download_suspend_patch(firmware_info *fw_info, int cached); +#endif +#if SET_WAKEUP_DEVICE +static void set_wakeup_device_from_conf(firmware_info *fw_info); +int set_wakeup_device(firmware_info *fw_info, uint8_t *wakeup_bdaddr); +#endif + +static void rtk_free(struct btusb_data *data) +{ +#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 1) + kfree(data); +#endif + return; +} + +static struct btusb_data *rtk_alloc(struct usb_interface *intf) +{ + struct btusb_data *data; +#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 1) + data = kzalloc(sizeof(*data), GFP_KERNEL); +#else + data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); +#endif + return data; +} + +static void print_acl(struct sk_buff *skb, int direction) +{ +#if PRINT_ACL_DATA + uint wlength = skb->len; + u16 *handle = (u16 *)(skb->data); + u16 len = *(handle+1); + u8 *acl_data = (u8 *)(skb->data); + + RTK_INFO("%s: direction %d, handle %04x, len %d", + __func__, direction, *handle, len); +#endif +} + +static void print_sco(struct sk_buff *skb, int direction) +{ +#if PRINT_SCO_DATA + uint wlength = skb->len; + u16 *handle = (u16 *)(skb->data); + u8 len = *(u8 *)(handle+1); + u8 *sco_data = (u8 *)(skb->data); + + RTKBT_INFO("%s: direction %d, handle %04x, len %d", + __func__, direction, *handle, len); +#endif +} + +static void print_error_command(struct sk_buff *skb) +{ + uint wlength = skb->len; + uint icount = 0; + u16 *opcode = (u16 *)(skb->data); + u8 *cmd_data = (u8 *)(skb->data); + u8 len = *(cmd_data+2); + + switch (*opcode) { + case HCI_OP_INQUIRY: + printk("HCI_OP_INQUIRY"); + break; + case HCI_OP_INQUIRY_CANCEL: + printk("HCI_OP_INQUIRY_CANCEL"); + break; + case HCI_OP_EXIT_PERIODIC_INQ: + printk("HCI_OP_EXIT_PERIODIC_INQ"); + break; + case HCI_OP_CREATE_CONN: + printk("HCI_OP_CREATE_CONN"); + break; + case HCI_OP_DISCONNECT: + printk("HCI_OP_DISCONNECT"); + break; + case HCI_OP_CREATE_CONN_CANCEL: + printk("HCI_OP_CREATE_CONN_CANCEL"); + break; + case HCI_OP_ACCEPT_CONN_REQ: + printk("HCI_OP_ACCEPT_CONN_REQ"); + break; + case HCI_OP_REJECT_CONN_REQ: + printk("HCI_OP_REJECT_CONN_REQ"); + break; + case HCI_OP_AUTH_REQUESTED: + printk("HCI_OP_AUTH_REQUESTED"); + break; + case HCI_OP_SET_CONN_ENCRYPT: + printk("HCI_OP_SET_CONN_ENCRYPT"); + break; + case HCI_OP_REMOTE_NAME_REQ: + printk("HCI_OP_REMOTE_NAME_REQ"); + break; + case HCI_OP_READ_REMOTE_FEATURES: + printk("HCI_OP_READ_REMOTE_FEATURES"); + break; + case HCI_OP_SNIFF_MODE: + printk("HCI_OP_SNIFF_MODE"); + break; + case HCI_OP_EXIT_SNIFF_MODE: + printk("HCI_OP_EXIT_SNIFF_MODE"); + break; + case HCI_OP_SWITCH_ROLE: + printk("HCI_OP_SWITCH_ROLE"); + break; + case HCI_OP_SNIFF_SUBRATE: + printk("HCI_OP_SNIFF_SUBRATE"); + break; + case HCI_OP_RESET: + printk("HCI_OP_RESET"); + break; + case HCI_OP_Write_Extended_Inquiry_Response: + printk("HCI_Write_Extended_Inquiry_Response"); + break; + + default: + printk("CMD"); + break; + } + printk(":%04x,len:%d,", *opcode, len); + for (icount = 3; (icount < wlength) && (icount < 24); icount++) + printk("%02x ", *(cmd_data+icount)); + printk("\n"); +} + +static void print_command(struct sk_buff *skb) +{ +#if PRINT_CMD_EVENT + print_error_command(skb); +#endif +} + +#if CONFIG_BLUEDROID +/* Global parameters for bt usb char driver */ +#define BT_CHAR_DEVICE_NAME "rtk_btusb" +struct mutex btchr_mutex; +static struct sk_buff_head btchr_readq; +static wait_queue_head_t btchr_read_wait; +static wait_queue_head_t bt_dlfw_wait; +static int bt_char_dev_registered; +static dev_t bt_devid; /* bt char device number */ +static struct cdev bt_char_dev; /* bt character device structure */ +static struct class *bt_char_class; /* device class for usb char driver */ +static int bt_reset; +/* HCI device & lock */ +DEFINE_RWLOCK(hci_dev_lock); +struct hci_dev *ghdev; + +static void print_event(struct sk_buff *skb) +{ +#if PRINT_CMD_EVENT + uint wlength = skb->len; + uint icount = 0; + u8 *opcode = (u8 *)(skb->data); + u8 len = *(opcode + 1); + + switch (*opcode) { + case HCI_EV_INQUIRY_COMPLETE: + printk("HCI_EV_INQUIRY_COMPLETE"); + break; + case HCI_EV_INQUIRY_RESULT: + printk("HCI_EV_INQUIRY_RESULT"); + break; + case HCI_EV_CONN_COMPLETE: + printk("HCI_EV_CONN_COMPLETE"); + break; + case HCI_EV_CONN_REQUEST: + printk("HCI_EV_CONN_REQUEST"); + break; + case HCI_EV_DISCONN_COMPLETE: + printk("HCI_EV_DISCONN_COMPLETE"); + break; + case HCI_EV_AUTH_COMPLETE: + printk("HCI_EV_AUTH_COMPLETE"); + break; + case HCI_EV_REMOTE_NAME: + printk("HCI_EV_REMOTE_NAME"); + break; + case HCI_EV_ENCRYPT_CHANGE: + printk("HCI_EV_ENCRYPT_CHANGE"); + break; + case HCI_EV_CHANGE_LINK_KEY_COMPLETE: + printk("HCI_EV_CHANGE_LINK_KEY_COMPLETE"); + break; + case HCI_EV_REMOTE_FEATURES: + printk("HCI_EV_REMOTE_FEATURES"); + break; + case HCI_EV_REMOTE_VERSION: + printk("HCI_EV_REMOTE_VERSION"); + break; + case HCI_EV_QOS_SETUP_COMPLETE: + printk("HCI_EV_QOS_SETUP_COMPLETE"); + break; + case HCI_EV_CMD_COMPLETE: + printk("HCI_EV_CMD_COMPLETE"); + break; + case HCI_EV_CMD_STATUS: + printk("HCI_EV_CMD_STATUS"); + break; + case HCI_EV_ROLE_CHANGE: + printk("HCI_EV_ROLE_CHANGE"); + break; + case HCI_EV_NUM_COMP_PKTS: + printk("HCI_EV_NUM_COMP_PKTS"); + break; + case HCI_EV_MODE_CHANGE: + printk("HCI_EV_MODE_CHANGE"); + break; + case HCI_EV_PIN_CODE_REQ: + printk("HCI_EV_PIN_CODE_REQ"); + break; + case HCI_EV_LINK_KEY_REQ: + printk("HCI_EV_LINK_KEY_REQ"); + break; + case HCI_EV_LINK_KEY_NOTIFY: + printk("HCI_EV_LINK_KEY_NOTIFY"); + break; + case HCI_EV_CLOCK_OFFSET: + printk("HCI_EV_CLOCK_OFFSET"); + break; + case HCI_EV_PKT_TYPE_CHANGE: + printk("HCI_EV_PKT_TYPE_CHANGE"); + break; + case HCI_EV_PSCAN_REP_MODE: + printk("HCI_EV_PSCAN_REP_MODE"); + break; + case HCI_EV_INQUIRY_RESULT_WITH_RSSI: + printk("HCI_EV_INQUIRY_RESULT_WITH_RSSI"); + break; + case HCI_EV_REMOTE_EXT_FEATURES: + printk("HCI_EV_REMOTE_EXT_FEATURES"); + break; + case HCI_EV_SYNC_CONN_COMPLETE: + printk("HCI_EV_SYNC_CONN_COMPLETE"); + break; + case HCI_EV_SYNC_CONN_CHANGED: + printk("HCI_EV_SYNC_CONN_CHANGED"); + break; + case HCI_EV_SNIFF_SUBRATE: + printk("HCI_EV_SNIFF_SUBRATE"); + break; + case HCI_EV_EXTENDED_INQUIRY_RESULT: + printk("HCI_EV_EXTENDED_INQUIRY_RESULT"); + break; + case HCI_EV_IO_CAPA_REQUEST: + printk("HCI_EV_IO_CAPA_REQUEST"); + break; + case HCI_EV_SIMPLE_PAIR_COMPLETE: + printk("HCI_EV_SIMPLE_PAIR_COMPLETE"); + break; + case HCI_EV_REMOTE_HOST_FEATURES: + printk("HCI_EV_REMOTE_HOST_FEATURES"); + break; + default: + printk("event"); + break; + } + printk(":%02x,len:%d,", *opcode, len); + for (icount = 2; (icount < wlength) && (icount < 24); icount++) + printk("%02x ", *(opcode+icount)); + printk("\n"); +#endif +} + +static inline ssize_t usb_put_user(struct sk_buff *skb, + char __user *buf, int count) +{ + char __user *ptr = buf; + int len = min_t(unsigned int, skb->len, count); + + if (copy_to_user(ptr, skb->data, len)) + return -EFAULT; + + return len; +} + +static struct sk_buff *rtk_skb_queue[QUEUE_SIZE]; +static int rtk_skb_queue_front; +static int rtk_skb_queue_rear; + +static void rtk_enqueue(struct sk_buff *skb) +{ + spin_lock(&queue_lock); + if (rtk_skb_queue_front == (rtk_skb_queue_rear + 1) % QUEUE_SIZE) { + /* + * If queue is full, current solution is to drop + * the following entries. + */ + RTKBT_WARN("%s: Queue is full, entry will be dropped", __func__); + } else { + rtk_skb_queue[rtk_skb_queue_rear] = skb; + + rtk_skb_queue_rear++; + rtk_skb_queue_rear %= QUEUE_SIZE; + + } + spin_unlock(&queue_lock); +} + +static struct sk_buff *rtk_dequeue_try(unsigned int deq_len) +{ + struct sk_buff *skb; + struct sk_buff *skb_copy; + + if (rtk_skb_queue_front == rtk_skb_queue_rear) { + RTKBT_WARN("%s: Queue is empty", __func__); + return NULL; + } + + skb = rtk_skb_queue[rtk_skb_queue_front]; + if (deq_len >= skb->len) { + + rtk_skb_queue_front++; + rtk_skb_queue_front %= QUEUE_SIZE; + + /* + * Return skb addr to be dequeued, and the caller + * should free the skb eventually. + */ + return skb; + } else { + skb_copy = pskb_copy(skb, GFP_ATOMIC); + skb_pull(skb, deq_len); + /* Return its copy to be freed */ + return skb_copy; + } +} + +static inline int is_queue_empty(void) +{ + return (rtk_skb_queue_front == rtk_skb_queue_rear) ? 1 : 0; +} + +/* + * Realtek - Integrate from hci_core.c + */ + +/* Get HCI device by index. + * Device is held on return. */ +static struct hci_dev *hci_dev_get(int index) +{ + if (index != 0) + return NULL; + + return ghdev; +} + +/* ---- HCI ioctl helpers ---- */ +static int hci_dev_open(__u16 dev) +{ + struct hci_dev *hdev; + int ret = 0; + + RTKBT_DBG("%s: dev %d", __func__, dev); + + hdev = hci_dev_get(dev); + if (!hdev) { + RTKBT_ERR("%s: Failed to get hci dev[Null]", __func__); + return -ENODEV; + } + + if (test_bit(HCI_UNREGISTER, &hdev->dev_flags)) { + ret = -ENODEV; + goto done; + } + + if (test_bit(HCI_UP, &hdev->flags)) { + ret = -EALREADY; + goto done; + } + +done: + return ret; +} + +static int hci_dev_do_close(struct hci_dev *hdev) +{ + if (hdev->flush) + hdev->flush(hdev); + /* After this point our queues are empty + * and no tasks are scheduled. */ + hdev->close(hdev); + /* Clear flags */ + hdev->flags = 0; + return 0; +} + +static int hci_dev_close(__u16 dev) +{ + struct hci_dev *hdev; + int err; + hdev = hci_dev_get(dev); + if (!hdev) { + RTKBT_ERR("%s: failed to get hci dev[Null]", __func__); + return -ENODEV; + } + + err = hci_dev_do_close(hdev); + + return err; +} + +static struct hci_dev *hci_alloc_dev(void) +{ + struct hci_dev *hdev; + + hdev = kzalloc(sizeof(struct hci_dev), GFP_KERNEL); + if (!hdev) + return NULL; + + return hdev; +} + +/* Free HCI device */ +static void hci_free_dev(struct hci_dev *hdev) +{ + kfree(hdev); +} + +/* Register HCI device */ +static int hci_register_dev(struct hci_dev *hdev) +{ + int i, id; + + RTKBT_DBG("%s: %p name %s bus %d", __func__, hdev, hdev->name, hdev->bus); + /* Do not allow HCI_AMP devices to register at index 0, + * so the index can be used as the AMP controller ID. + */ + id = (hdev->dev_type == HCI_BREDR) ? 0 : 1; + + write_lock(&hci_dev_lock); + + sprintf(hdev->name, "hci%d", id); + hdev->id = id; + hdev->flags = 0; + hdev->dev_flags = 0; + mutex_init(&hdev->lock); + + RTKBT_DBG("%s: id %d, name %s", __func__, hdev->id, hdev->name); + + + for (i = 0; i < NUM_REASSEMBLY; i++) + hdev->reassembly[i] = NULL; + + memset(&hdev->stat, 0, sizeof(struct hci_dev_stats)); + atomic_set(&hdev->promisc, 0); + + if (ghdev) { + write_unlock(&hci_dev_lock); + RTKBT_ERR("%s: Hci device has been registered already", __func__); + return -1; + } else + ghdev = hdev; + + write_unlock(&hci_dev_lock); + + return id; +} + +/* Unregister HCI device */ +static void hci_unregister_dev(struct hci_dev *hdev) +{ + int i; + + RTKBT_DBG("%s: hdev %p name %s bus %d", __func__, hdev, hdev->name, hdev->bus); + set_bit(HCI_UNREGISTER, &hdev->dev_flags); + + write_lock(&hci_dev_lock); + ghdev = NULL; + write_unlock(&hci_dev_lock); + + hci_dev_do_close(hdev); + for (i = 0; i < NUM_REASSEMBLY; i++) + kfree_skb(hdev->reassembly[i]); +} + +static void hci_send_to_stack(struct hci_dev *hdev, struct sk_buff *skb) +{ + struct sk_buff *rtk_skb_copy = NULL; + + RTKBT_DBG("%s", __func__); + + if (!hdev) { + RTKBT_ERR("%s: Frame for unknown HCI device", __func__); + return; + } + + if (!test_bit(HCI_RUNNING, &hdev->flags)) { + RTKBT_ERR("%s: HCI not running", __func__); + return; + } + + rtk_skb_copy = pskb_copy(skb, GFP_ATOMIC); + if (!rtk_skb_copy) { + RTKBT_ERR("%s: Copy skb error", __func__); + return; + } + + memcpy(skb_push(rtk_skb_copy, 1), &bt_cb(skb)->pkt_type, 1); + rtk_enqueue(rtk_skb_copy); + + /* Make sure bt char device existing before wakeup read queue */ + hdev = hci_dev_get(0); + if (hdev) { + RTKBT_DBG("%s: Try to wakeup read queue", __func__); + wake_up_interruptible(&btchr_read_wait); + } + + return; +} + +/* Receive frame from HCI drivers */ +static int hci_recv_frame(struct sk_buff *skb) +{ + struct hci_dev *hdev = (struct hci_dev *) skb->dev; + + if (!hdev || + (!test_bit(HCI_UP, &hdev->flags) && !test_bit(HCI_INIT, &hdev->flags))) { + kfree_skb(skb); + return -ENXIO; + } + + /* Incomming skb */ + bt_cb(skb)->incoming = 1; + + /* Time stamp */ + __net_timestamp(skb); + + if (atomic_read(&hdev->promisc)) { + /* Send copy to the sockets */ + hci_send_to_stack(hdev, skb); + } + kfree_skb(skb); + return 0; +} + +static int hci_reassembly(struct hci_dev *hdev, int type, void *data, + int count, __u8 index) +{ + int len = 0; + int hlen = 0; + int remain = count; + struct sk_buff *skb; + struct bt_skb_cb *scb; + + RTKBT_DBG("%s", __func__); + + if ((type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT) || + index >= NUM_REASSEMBLY) + return -EILSEQ; + + skb = hdev->reassembly[index]; + + if (!skb) { + switch (type) { + case HCI_ACLDATA_PKT: + len = HCI_MAX_FRAME_SIZE; + hlen = HCI_ACL_HDR_SIZE; + break; + case HCI_EVENT_PKT: + len = HCI_MAX_EVENT_SIZE; + hlen = HCI_EVENT_HDR_SIZE; + break; + case HCI_SCODATA_PKT: + len = HCI_MAX_SCO_SIZE; + hlen = HCI_SCO_HDR_SIZE; + break; + } + + skb = bt_skb_alloc(len, GFP_ATOMIC); + if (!skb) + return -ENOMEM; + + scb = (void *) skb->cb; + scb->expect = hlen; + scb->pkt_type = type; + + skb->dev = (void *) hdev; + hdev->reassembly[index] = skb; + } + + while (count) { + scb = (void *) skb->cb; + len = min_t(uint, scb->expect, count); + + memcpy(skb_put(skb, len), data, len); + + count -= len; + data += len; + scb->expect -= len; + remain = count; + + switch (type) { + case HCI_EVENT_PKT: + if (skb->len == HCI_EVENT_HDR_SIZE) { + struct hci_event_hdr *h = hci_event_hdr(skb); + scb->expect = h->plen; + + if (skb_tailroom(skb) < scb->expect) { + kfree_skb(skb); + hdev->reassembly[index] = NULL; + return -ENOMEM; + } + } + break; + + case HCI_ACLDATA_PKT: + if (skb->len == HCI_ACL_HDR_SIZE) { + struct hci_acl_hdr *h = hci_acl_hdr(skb); + scb->expect = __le16_to_cpu(h->dlen); + + if (skb_tailroom(skb) < scb->expect) { + kfree_skb(skb); + hdev->reassembly[index] = NULL; + return -ENOMEM; + } + } + break; + + case HCI_SCODATA_PKT: + if (skb->len == HCI_SCO_HDR_SIZE) { + struct hci_sco_hdr *h = hci_sco_hdr(skb); + scb->expect = h->dlen; + + if (skb_tailroom(skb) < scb->expect) { + kfree_skb(skb); + hdev->reassembly[index] = NULL; + return -ENOMEM; + } + } + break; + } + + if (scb->expect == 0) { + /* Complete frame */ + if (HCI_ACLDATA_PKT == type) + print_acl(skb, 0); + if (HCI_SCODATA_PKT == type) + print_sco(skb, 0); + if (HCI_EVENT_PKT == type) + print_event(skb); + + bt_cb(skb)->pkt_type = type; + hci_recv_frame(skb); + + hdev->reassembly[index] = NULL; + return remain; + } + } + + return remain; +} + +static int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count) +{ + int rem = 0; + + if (type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT) + return -EILSEQ; + + while (count) { + rem = hci_reassembly(hdev, type, data, count, type - 1); + if (rem < 0) + return rem; + + data += (count - rem); + count = rem; + } + + return rem; +} + +void hci_hardware_error(void) +{ + struct sk_buff *rtk_skb_copy = NULL; + int len = 3; + uint8_t hardware_err_pkt[4] = {HCI_EVENT_PKT, 0x10, 0x01, HCI_VENDOR_USB_DISC_HARDWARE_ERROR}; + + rtk_skb_copy = alloc_skb(len, GFP_ATOMIC); + if (!rtk_skb_copy) { + RTKBT_ERR("%s: Failed to allocate mem", __func__); + return; + } + + memcpy(skb_put(rtk_skb_copy, len), hardware_err_pkt, len); + rtk_enqueue(rtk_skb_copy); + + wake_up_interruptible(&btchr_read_wait); +} + +static int btchr_open(struct inode *inode_p, struct file *file_p) +{ + struct btusb_data *data; + struct hci_dev *hdev; + + RTKBT_INFO("%s: BT usb char device is opening", __func__); + /* Not open unless wanna tracing log */ + /* trace_printk("%s: open....\n", __func__); */ + + hdev = hci_dev_get(0); + if (!hdev) { + RTKBT_ERR("%s: Failed to get hci dev[NULL]", __func__); + return -ENODEV; + } + data = GET_DRV_DATA(hdev); + + atomic_inc(&hdev->promisc); + /* + * As bt device is not re-opened when hotplugged out, we cannot + * trust on file's private data(may be null) when other file ops + * are invoked. + */ + file_p->private_data = data; + + mutex_lock(&btchr_mutex); + hci_dev_open(0); + mutex_unlock(&btchr_mutex); + + return nonseekable_open(inode_p, file_p); +} + +static int btchr_close(struct inode *inode_p, struct file *file_p) +{ + struct btusb_data *data; + struct hci_dev *hdev; + + RTKBT_INFO("%s: BT usb char device is closing", __func__); + /* Not open unless wanna tracing log */ + /* trace_printk("%s: close....\n", __func__); */ + + data = file_p->private_data; + file_p->private_data = NULL; + +#if CONFIG_BLUEDROID + /* + * If the upper layer closes bt char interfaces, no reset + * action required even bt device hotplugged out. + */ + bt_reset = 0; +#endif + + hdev = hci_dev_get(0); + if (hdev) { + atomic_set(&hdev->promisc, 0); + mutex_lock(&btchr_mutex); + hci_dev_close(0); + mutex_unlock(&btchr_mutex); + } + + return 0; +} + +static ssize_t btchr_read(struct file *file_p, + char __user *buf_p, + size_t count, + loff_t *pos_p) +{ + struct hci_dev *hdev; + struct sk_buff *skb; + ssize_t ret = 0; + + RTKBT_DBG("%s: BT usb char device is reading", __func__); + + while (count) { + hdev = hci_dev_get(0); + if (!hdev) { + /* + * Note: Only when BT device hotplugged out, we wil get + * into such situation. In order to keep the upper layer + * stack alive (blocking the read), we should never return + * EFAULT or break the loop. + */ + RTKBT_ERR("%s: Failed to get hci dev[Null]", __func__); + } + + ret = wait_event_interruptible(btchr_read_wait, !is_queue_empty()); + if (ret < 0) { + RTKBT_ERR("%s: wait event is signaled %d", __func__, ret); + break; + } + + skb = rtk_dequeue_try(count); + if (skb) { + ret = usb_put_user(skb, buf_p, count); + if (ret < 0) + RTKBT_ERR("%s: Failed to put data to user space", __func__); + kfree_skb(skb); + break; + } + } + + return ret; +} + +static ssize_t btchr_write(struct file *file_p, + const char __user *buf_p, + size_t count, + loff_t *pos_p) +{ + struct btusb_data *data = file_p->private_data; + struct hci_dev *hdev; + struct sk_buff *skb; + + RTKBT_DBG("%s: BT usb char device is writing", __func__); + + hdev = hci_dev_get(0); + if (!hdev) { + RTKBT_WARN("%s: Failed to get hci dev[Null]", __func__); + /* + * Note: we bypass the data from the upper layer if bt device + * is hotplugged out. Fortunatelly, H4 or H5 HCI stack does + * NOT check btchr_write's return value. However, returning + * count instead of EFAULT is preferable. + */ + /* return -EFAULT; */ + return count; + } + + /* Never trust on btusb_data, as bt device may be hotplugged out */ + data = GET_DRV_DATA(hdev); + if (!data) { + RTKBT_WARN("%s: Failed to get bt usb driver data[Null]", __func__); + return count; + } + + if (count > HCI_MAX_FRAME_SIZE) + return -EINVAL; + + skb = bt_skb_alloc(count, GFP_ATOMIC); + if (!skb) + return -ENOMEM; + skb_reserve(skb, -1); /* Add this line */ + + if (copy_from_user(skb_put(skb, count), buf_p, count)) { + RTKBT_ERR("%s: Failed to get data from user space", __func__); + kfree_skb(skb); + return -EFAULT; + } + + skb->dev = (void *)hdev; + bt_cb(skb)->pkt_type = *((__u8 *)skb->data); + skb_pull(skb, 1); + data->hdev->send(skb); + + return count; +} + +static unsigned int btchr_poll(struct file *file_p, poll_table *wait) +{ + struct btusb_data *data = file_p->private_data; + struct hci_dev *hdev; + + RTKBT_DBG("%s: BT usb char device is polling", __func__); + + poll_wait(file_p, &btchr_read_wait, wait); + + hdev = hci_dev_get(0); + if (!hdev) { + RTKBT_ERR("%s: Failed to get hci dev[Null]", __func__); + mdelay(URB_CANCELING_DELAY_MS); + return POLLOUT | POLLWRNORM; + } + + /* Never trust on btusb_data, as bt device may be hotplugged out */ + data = GET_DRV_DATA(hdev); + if (!data) { + /* + * When bt device is hotplugged out, btusb_data will + * be freed in disconnect. + */ + RTKBT_ERR("%s: Failed to get bt usb driver data[Null]", __func__); + mdelay(URB_CANCELING_DELAY_MS); + return POLLOUT | POLLWRNORM; + } + + if (!is_queue_empty()) + return POLLIN | POLLRDNORM; + + return POLLOUT | POLLWRNORM; +} +static long btchr_ioctl(struct file *file_p, unsigned int cmd, unsigned long arg) +{ + int ret = 0; + struct hci_dev *hdev; + struct btusb_data *data; + firmware_info *fw_info; + + if (check_set_dlfw_state_value(1) != 1) { + RTKBT_ERR("%s bt controller is disconnecting!", __func__); + return 0; + } + + hdev = hci_dev_get(0); + if (!hdev) { + RTKBT_ERR("%s device is NULL!", __func__); + set_dlfw_state_value(0); + return 0; + } + data = GET_DRV_DATA(hdev); + fw_info = data->fw_info; + + RTKBT_INFO(" btchr_ioctl DOWN_FW_CFG with Cmd:%d", cmd); + switch (cmd) { + case DOWN_FW_CFG: + ret = usb_autopm_get_interface(data->intf); + if (ret < 0) { + goto failed; + } + + ret = download_patch(fw_info, 1); + usb_autopm_put_interface(data->intf); + if (ret < 0) { + RTKBT_ERR("%s:Failed in download_patch with ret:%d", __func__, ret); + goto failed; + } + + ret = hdev->open(hdev); + if (ret < 0) { + RTKBT_ERR("%s:Failed in hdev->open(hdev):%d", __func__, ret); + goto failed; + } + set_bit(HCI_UP, &hdev->flags); + set_dlfw_state_value(0); + wake_up_interruptible(&bt_dlfw_wait); + return 1; + default: + RTKBT_ERR("%s:Failed with wrong Cmd:%d", __func__, cmd); + goto failed; + } + failed: + set_dlfw_state_value(0); + wake_up_interruptible(&bt_dlfw_wait); + return ret; + +} + + + +static struct file_operations bt_chrdev_ops = { + open: btchr_open, + release : btchr_close, + read : btchr_read, + write : btchr_write, + poll : btchr_poll, + unlocked_ioctl : btchr_ioctl, +}; + +static int btchr_init(void) +{ + int res = 0; + struct device *dev; + + RTKBT_INFO("Register usb char device interface for BT driver"); + /* + * btchr mutex is used to sync between + * 1) downloading patch and opening bt char driver + * 2) the file operations of bt char driver + */ + mutex_init(&btchr_mutex); + + skb_queue_head_init(&btchr_readq); + init_waitqueue_head(&btchr_read_wait); + init_waitqueue_head(&bt_dlfw_wait); + + bt_char_class = class_create(THIS_MODULE, BT_CHAR_DEVICE_NAME); + if (IS_ERR(bt_char_class)) { + RTKBT_ERR("Failed to create bt char class"); + return PTR_ERR(bt_char_class); + } + + res = alloc_chrdev_region(&bt_devid, 0, 1, BT_CHAR_DEVICE_NAME); + if (res < 0) { + RTKBT_ERR("Failed to allocate bt char device"); + goto err_alloc; + } + + dev = device_create(bt_char_class, NULL, bt_devid, NULL, BT_CHAR_DEVICE_NAME); + if (IS_ERR(dev)) { + RTKBT_ERR("Failed to create bt char device"); + res = PTR_ERR(dev); + goto err_create; + } + + cdev_init(&bt_char_dev, &bt_chrdev_ops); + res = cdev_add(&bt_char_dev, bt_devid, 1); + if (res < 0) { + RTKBT_ERR("Failed to add bt char device"); + goto err_add; + } + + return 0; + +err_add: + device_destroy(bt_char_class, bt_devid); +err_create: + unregister_chrdev_region(bt_devid, 1); +err_alloc: + class_destroy(bt_char_class); + return res; +} + +static void btchr_exit(void) +{ + RTKBT_INFO("Unregister usb char device interface for BT driver"); + + device_destroy(bt_char_class, bt_devid); + cdev_del(&bt_char_dev); + unregister_chrdev_region(bt_devid, 1); + class_destroy(bt_char_class); + + return; +} +#endif + +int send_hci_cmd(firmware_info *fw_info) +{ + int i = 0; + int ret_val = -1; + while ((ret_val < 0) && (i++ < 10)) { + ret_val = usb_control_msg( + fw_info->udev, fw_info->pipe_out, + 0, USB_TYPE_CLASS, 0, 0, + (void *)(fw_info->send_pkt), + fw_info->pkt_len, MSG_TO); + } + return ret_val; +} + +int rcv_hci_evt(firmware_info *fw_info) +{ + int ret_len = 0, ret_val = 0; + int i; + + while (1) { + for (i = 0; i < 5; i++) { + ret_val = usb_interrupt_msg( + fw_info->udev, fw_info->pipe_in, + (void *)(fw_info->rcv_pkt), PKT_LEN, + &ret_len, MSG_TO); + if (ret_val >= 0) + break; + } + + if (ret_val < 0) + return ret_val; + + if (CMD_CMP_EVT == fw_info->evt_hdr->evt) { + if (fw_info->cmd_hdr->opcode == fw_info->cmd_cmp->opcode) + return ret_len; + } + } +} + +int set_bt_onoff(firmware_info *fw_info, uint8_t onoff) +{ + patch_info *patch_entry; + int ret_val; + + RTKBT_INFO("%s: %s", __func__, onoff != 0 ? "on" : "off"); + + patch_entry = fw_info->patch_entry; + if (!patch_entry) + return -1; + + fw_info->cmd_hdr->opcode = cpu_to_le16(BTOFF_OPCODE); + fw_info->cmd_hdr->plen = 1; + fw_info->pkt_len = CMD_HDR_LEN + 1; + fw_info->send_pkt[CMD_HDR_LEN] = onoff; + + ret_val = send_hci_cmd(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to send bt %s cmd, errno %d", + __func__, onoff != 0 ? "on" : "off", ret_val); + return ret_val; + } + + ret_val = rcv_hci_evt(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to receive bt %s event, errno %d", + __func__, onoff != 0 ? "on" : "off", ret_val); + return ret_val; + } + + return ret_val; +} + +static patch_info *get_fw_table_entry(struct usb_device *udev) +{ + patch_info *patch_entry = fw_patch_table; + uint16_t vid = le16_to_cpu(udev->descriptor.idVendor); + uint16_t pid = le16_to_cpu(udev->descriptor.idProduct); + uint32_t entry_size = sizeof(fw_patch_table) / sizeof(fw_patch_table[0]); + uint32_t i; + + RTKBT_INFO("%s: Product id = 0x%04x, fw table entry size %d", __func__, pid, entry_size); + + for (i = 0; i < entry_size; i++, patch_entry++) { + if ((vid == patch_entry->vid) && (pid == patch_entry->pid)) + break; + } + + if (i == entry_size) { + RTKBT_ERR("%s: No fw table entry found", __func__); + return NULL; + } + + return patch_entry; +} + +#if SUSPNED_DW_FW +static patch_info *get_suspend_fw_table_entry(struct usb_device *udev) +{ + patch_info *patch_entry = fw_patch_table; + uint16_t vid = le16_to_cpu(udev->descriptor.idVendor); + uint16_t pid = le16_to_cpu(udev->descriptor.idProduct); + uint32_t entry_size = sizeof(fw_patch_table) / sizeof(fw_patch_table[0]); + uint32_t i; + + RTKBT_INFO("%s: Product id = 0x%04x, fw table entry size %d", __func__, pid, entry_size); + + for (i = 0; i < entry_size; i++, patch_entry++) { + if ((vid == patch_entry->vid) && (pid == patch_entry->pid)) + break; + } + + if (i == entry_size) { + RTKBT_ERR("%s: No fw table entry found", __func__); + return NULL; + } + + return patch_entry; +} +#endif + +static struct rtk_epatch_entry *get_fw_patch_entry(struct rtk_epatch *epatch_info, uint16_t eco_ver) +{ + int patch_num = epatch_info->number_of_total_patch; + uint8_t *epatch_buf = (uint8_t *)epatch_info; + struct rtk_epatch_entry *p_entry = NULL; + int coex_date; + int coex_ver; + int i; + + for (i = 0; i < patch_num; i++) { + if (*(uint16_t *)(epatch_buf + 14 + 2*i) == eco_ver + 1) { + p_entry = kzalloc(sizeof(*p_entry), GFP_KERNEL); + if (!p_entry) { + RTKBT_ERR("%s: Failed to allocate mem for patch entry", __func__); + return NULL; + } + p_entry->chip_id = eco_ver + 1; + p_entry->patch_length = *(uint16_t *)(epatch_buf + 14 + 2 * patch_num + 2 * i); + p_entry->start_offset = *(uint32_t *)(epatch_buf + 14 + 4 * patch_num + 4 * i); + p_entry->coex_version = *(uint32_t *)(epatch_buf + p_entry->start_offset + p_entry->patch_length - 12); + p_entry->svn_version = *(uint32_t *)(epatch_buf + p_entry->start_offset + p_entry->patch_length - 8); + p_entry->fw_version = *(uint32_t *)(epatch_buf + p_entry->start_offset + p_entry->patch_length - 4); + + coex_date = ((p_entry->coex_version >> 16) & 0x7ff) + ((p_entry->coex_version >> 27) * 10000); + coex_ver = p_entry->coex_version & 0xffff; + + RTKBT_INFO("BTCOEX:20%06d-0x%04x svn version:0x%08x fw version:0x%08x rtk_btusb version:%s Cut:%d, patch length:0x%04x, patch offset:0x%08x\n", \ + coex_date, coex_ver, p_entry->svn_version, p_entry->fw_version, VERSION, p_entry->chip_id, p_entry->patch_length, p_entry->start_offset); + break; + } + } + + return p_entry; +} + +/*reset_controller is aimed to reset_bt_fw before updata Fw patch*/ +int reset_controller(firmware_info *fw_info) +{ + int ret_val; + RTKBT_ERR("reset_controller"); + + if (!fw_info) + return -ENODEV; + + fw_info->cmd_hdr->opcode = cpu_to_le16(HCI_VENDOR_FORCE_RESET_AND_PATCHABLE); + fw_info->cmd_hdr->plen = 0; + fw_info->pkt_len = CMD_HDR_LEN; + ret_val = send_hci_cmd(fw_info); + + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to send hci cmd 0x%04x, errno %d", + __func__, fw_info->cmd_hdr->opcode, ret_val); + return ret_val; + } + + /* sleep 1s for firmware reset. */ + msleep(1000); + RTKBT_INFO("%s: Wait fw reset for 1ms", __func__); + + return ret_val; +} +/*reset_controller is aimed to reset_bt_fw before updata Fw patch*/ + +/* + * check the return value + * 1: need to download fw patch + * 0: no need to download fw patch + * <0: failed to check lmp version + */ +int check_fw_version(firmware_info *fw_info) +{ + struct hci_rp_read_local_version *read_ver_rsp; + patch_info *patch_entry = NULL; + int ret_val = -1; + + fw_info->cmd_hdr->opcode = cpu_to_le16(HCI_OP_READ_LOCAL_VERSION); + fw_info->cmd_hdr->plen = 0; + fw_info->pkt_len = CMD_HDR_LEN; + + ret_val = send_hci_cmd(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to send hci cmd 0x%04x, errno %d", + __func__, fw_info->cmd_hdr->opcode, ret_val); + return ret_val; + } + + ret_val = rcv_hci_evt(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to receive hci event, errno %d", + __func__, ret_val); + return ret_val; + } + + patch_entry = fw_info->patch_entry; + read_ver_rsp = (struct hci_rp_read_local_version *)(fw_info->rsp_para); + + RTKBT_INFO("%s: Controller lmp = 0x%04x, patch lmp = 0x%04x, default patch lmp = 0x%04x", + __func__, read_ver_rsp->lmp_subver, patch_entry->lmp_sub, patch_entry->lmp_sub_default); + + if (read_ver_rsp->lmp_subver == patch_entry->lmp_sub_default) { + RTKBT_INFO("%s: Cold BT controller startup", __func__); + + return 2; + + } else if (read_ver_rsp->lmp_subver != patch_entry->lmp_sub) { + RTKBT_INFO("%s: Warm BT controller startup with updated lmp", __func__); + return 1; + } else { + RTKBT_INFO("%s: Warm BT controller startup with same lmp", __func__); + return 0; + } +} + +#if SET_WAKEUP_DEVICE +int set_wakeup_device(firmware_info *fw_info, uint8_t *wakeup_bdaddr) +{ + struct rtk_eversion_evt *ever_evt; + int ret_val; + + if (!fw_info) + return -ENODEV; + + fw_info->cmd_hdr->opcode = cpu_to_le16(HCI_VENDOR_ADD_WAKE_UP_DEVICE); + fw_info->cmd_hdr->plen = 7; + memcpy(fw_info->req_para, wakeup_bdaddr, 7); + fw_info->pkt_len = CMD_HDR_LEN + 7; + + ret_val = send_hci_cmd(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to send hci cmd 0x%04x, errno %d\n", + __func__, fw_info->cmd_hdr->opcode, ret_val); + return ret_val; + } + + ret_val = rcv_hci_evt(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to receive hci event, errno %d\n", __func__, ret_val); + return ret_val; + } + + ever_evt = (struct rtk_eversion_evt *)(fw_info->rsp_para); + + RTKBT_DBG("%s: status %d, eversion %d", __func__, ever_evt->status, ever_evt->version); + return ret_val; +} +#endif + +/*reset_channel to recover the communication between wifi 8192eu with 8761 bt controller in case of geteversion error*/ + +int reset_channel(firmware_info *fw_info) +{ + struct rtk_reset_evt *ever_evt; + int ret_val; + + if (!fw_info) + return -ENODEV; + + fw_info->cmd_hdr->opcode = cpu_to_le16(HCI_VENDOR_RESET); + fw_info->cmd_hdr->plen = 0; + fw_info->pkt_len = CMD_HDR_LEN; + + ret_val = send_hci_cmd(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to send hci cmd 0x%04x, errno %d", + __func__, fw_info->cmd_hdr->opcode, ret_val); + return ret_val; + } + + ret_val = rcv_hci_evt(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to receive hci event, errno %d", + __func__, ret_val); + return ret_val; + } + + ever_evt = (struct rtk_reset_evt *)(fw_info->rsp_para); + + RTKBT_INFO("%s: status %d ", __func__, ever_evt->status); + + /* sleep 300ms for channel reset. */ + msleep(300); + RTKBT_INFO("%s: Wait channel reset for 300ms", __func__); + + return ret_val; +} + +int read_localversion(firmware_info *fw_info) +{ + struct rtk_localversion_evt *ever_evt; + int ret_val; + + if (!fw_info) + return -ENODEV; + + fw_info->cmd_hdr->opcode = cpu_to_le16(HCI_VENDOR_READ_LMP_VERISION); + fw_info->cmd_hdr->plen = 0; + fw_info->pkt_len = CMD_HDR_LEN; + + ret_val = send_hci_cmd(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to send hci cmd 0x%04x, errno %d", + __func__, fw_info->cmd_hdr->opcode, ret_val); + return ret_val; + } + + ret_val = rcv_hci_evt(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to receive hci event, errno %d", + __func__, ret_val); + return ret_val; + } + + ever_evt = (struct rtk_localversion_evt *)(fw_info->rsp_para); + + RTKBT_INFO("%s: status %d ", __func__, ever_evt->status); + RTKBT_INFO("%s: hci_version %d ", __func__, ever_evt->hci_version); + RTKBT_INFO("%s: hci_revision %d ", __func__, ever_evt->hci_revision); + RTKBT_INFO("%s: lmp_version %d ", __func__, ever_evt->lmp_version); + RTKBT_INFO("%s: lmp_subversion %d ", __func__, ever_evt->lmp_subversion); + RTKBT_INFO("%s: lmp_manufacture %d ", __func__, ever_evt->lmp_manufacture); + /* sleep 300ms for channel reset. */ + msleep(300); + RTKBT_INFO("%s: Wait channel reset for 300ms", __func__); + + return ret_val; +} + +int get_eversion(firmware_info *fw_info) +{ + struct rtk_eversion_evt *ever_evt; + int ret_val; + + if (!fw_info) + return -ENODEV; + + fw_info->cmd_hdr->opcode = cpu_to_le16(HCI_VENDOR_READ_RTK_ROM_VERISION); + fw_info->cmd_hdr->plen = 0; + fw_info->pkt_len = CMD_HDR_LEN; + + ret_val = send_hci_cmd(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to send hci cmd 0x%04x, errno %d", + __func__, fw_info->cmd_hdr->opcode, ret_val); + return ret_val; + } + + ret_val = rcv_hci_evt(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to receive hci event, errno %d", + __func__, ret_val); + return ret_val; + } + + ever_evt = (struct rtk_eversion_evt *)(fw_info->rsp_para); + + RTKBT_INFO("%s: status %d, eversion %d", __func__, ever_evt->status, ever_evt->version); + + if (ever_evt->status) + fw_info->patch_entry->eversion = 0; + else + fw_info->patch_entry->eversion = ever_evt->version; + + return ret_val; +} + +void rtk_update_altsettings(patch_info *patch_entry, const unsigned char *org_config_buf, int org_config_len, unsigned char **new_config_buf_ptr, int *new_config_len_ptr) +{ + static unsigned char config_buf[1024]; + unsigned short offset[256]; + unsigned char val[256]; + + struct rtk_bt_vendor_config *config = (struct rtk_bt_vendor_config *) config_buf; + struct rtk_bt_vendor_config_entry *entry = config->entry; + + int count = 0, temp = 0, i = 0, j; + + memset(config_buf, 0, sizeof(config_buf)); + memset(offset, 0, sizeof(offset)); + memset(val, 0, sizeof(val)); + + memcpy(config_buf, org_config_buf, org_config_len); + *new_config_buf_ptr = config_buf; + *new_config_len_ptr = org_config_len; + + count = getAltSettings(patch_entry, offset, sizeof(offset)/sizeof(unsigned short)); + if (count <= 0) { + RTKBT_INFO("rtk_update_altsettings: No AltSettings"); + return; + } else { + RTKBT_INFO("rtk_update_altsettings: %d AltSettings", count); + } + + RTKBT_INFO("ORG Config len=%08x:\n", org_config_len); + for (i = 0; i <= org_config_len; i += 0x10) { + RTKBT_INFO("%08x: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", i, \ + config_buf[i], config_buf[i+1], config_buf[i+2], config_buf[i+3], config_buf[i+4], config_buf[i+5], config_buf[i+6], config_buf[i+7], \ + config_buf[i+8], config_buf[i+9], config_buf[i+10], config_buf[i+11], config_buf[i+12], config_buf[i+13], config_buf[i+14], config_buf[i+15]); + } + + if (config->data_len != org_config_len - sizeof(struct rtk_bt_vendor_config)) { + RTKBT_ERR("rtk_update_altsettings: config len(%x) is not right(%x)", config->data_len, org_config_len-sizeof(struct rtk_bt_vendor_config)); + return; + } + + for (i = 0; i < config->data_len; ) { + for (j = 0; j < count; j++) { + if (entry->offset == offset[j]) + offset[j] = 0; + } + if (getAltSettingVal(patch_entry, entry->offset, val) == entry->entry_len) { + RTKBT_INFO("rtk_update_altsettings: replace %04x[%02x]", entry->offset, entry->entry_len); + memcpy(entry->entry_data, val, entry->entry_len); + } + temp = entry->entry_len + sizeof(struct rtk_bt_vendor_config_entry); + i += temp; + entry = (struct rtk_bt_vendor_config_entry *)((uint8_t *)entry + temp); + } + for (j = 0; j < count; j++) { + if (offset[j] == 0) + continue; + entry->entry_len = getAltSettingVal(patch_entry, offset[j], val); + if (entry->entry_len <= 0) + continue; + entry->offset = offset[j]; + memcpy(entry->entry_data, val, entry->entry_len); + RTKBT_INFO("rtk_update_altsettings: add %04x[%02x]", entry->offset, entry->entry_len); + temp = entry->entry_len + sizeof(struct rtk_bt_vendor_config_entry); + i += temp; + entry = (struct rtk_bt_vendor_config_entry *)((uint8_t *)entry + temp); + } + config->data_len = i; + *new_config_buf_ptr = config_buf; + *new_config_len_ptr = config->data_len+sizeof(struct rtk_bt_vendor_config); + + return; +} + +int load_firmware(firmware_info *fw_info, uint8_t **buff) +{ + const struct firmware *fw, *cfg; + struct usb_device *udev; + patch_info *patch_entry; + char *config_name, *fw_name; + int fw_len = 0; + int ret_val; + + int config_len = 0, buf_len = -1; + uint8_t *buf = *buff, *config_file_buf = NULL; + uint8_t *epatch_buf = NULL; + + struct rtk_epatch *epatch_info = NULL; + uint8_t need_download_fw = 1; + struct rtk_extension_entry patch_lmp = {0}; + struct rtk_epatch_entry *p_epatch_entry = NULL; + uint16_t lmp_version; + /* uint8_t use_mp_fw = 0; */ + RTKBT_DBG("%s: start", __func__); + + udev = fw_info->udev; + patch_entry = fw_info->patch_entry; + lmp_version = patch_entry->lmp_sub_default; + config_name = patch_entry->config_name; +/* 1 Mptool Fw; 0 Normal Fw */ + if (DRV_MP_MODE == mp_drv_mode) { + fw_name = patch_entry->mp_patch_name; + } else { + fw_name = patch_entry->patch_name; + } + + RTKBT_INFO("%s: Default lmp version = 0x%04x, config file name[%s], " + "fw file name[%s]", __func__, lmp_version, config_name, fw_name); + + ret_val = request_firmware(&cfg, config_name, &udev->dev); + if (ret_val < 0) + config_len = 0; + else { + int i; + rtk_update_altsettings(patch_entry, cfg->data, cfg->size, &config_file_buf, &config_len); + + RTKBT_INFO("Final Config len=%08x:\n", config_len); + for (i = 0; i <= config_len; i += 0x10) { + RTKBT_INFO("%08x: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", i, \ + config_file_buf[i], config_file_buf[i+1], config_file_buf[i+2], config_file_buf[i+3], config_file_buf[i+4], config_file_buf[i+5], config_file_buf[i+6], config_file_buf[i+7], \ + config_file_buf[i+8], config_file_buf[i+9], config_file_buf[i+10], config_file_buf[i+11], config_file_buf[i+12], config_file_buf[i+13], config_file_buf[i+14], config_file_buf[i+15]); + } + + release_firmware(cfg); + } + + ret_val = request_firmware(&fw, fw_name, &udev->dev); + if (ret_val < 0) + goto fw_fail; + else { + epatch_buf = vmalloc(fw->size); + RTKBT_INFO("%s: epatch_buf = vmalloc(fw->size, GFP_KERNEL)", __func__); + if (!epatch_buf) { + release_firmware(fw); + goto fw_fail; + } + memcpy(epatch_buf, fw->data, fw->size); + fw_len = fw->size; + buf_len = fw_len + config_len; + release_firmware(fw); + } + + if (lmp_version == ROM_LMP_8723a) { + RTKBT_DBG("%s: 8723a -> use old style patch", __func__); + if (!memcmp(epatch_buf, RTK_EPATCH_SIGNATURE, 8)) { + RTKBT_ERR("%s: 8723a check signature error", __func__); + need_download_fw = 0; + } else { + buf = kzalloc(buf_len, GFP_KERNEL); + if (!buf) { + RTKBT_ERR("%s: Failed to allocate mem for fw&config", __func__); + buf_len = -1; + } else { + RTKBT_DBG("%s: 8723a -> fw copy directly", __func__); + memcpy(buf, epatch_buf, buf_len); + patch_entry->lmp_sub = *(uint16_t *)(buf + buf_len - config_len - 4); + RTKBT_DBG("%s: Config lmp version = 0x%04x", __func__, + patch_entry->lmp_sub); + vfree(epatch_buf); + RTKBT_INFO("%s:ROM_LMP_8723a vfree(epatch_buf)", __func__); + epatch_buf = NULL; + if (config_len) + memcpy(buf + buf_len - config_len, config_file_buf, config_len); + } + } + } else { + RTKBT_DBG("%s: Not 8723a -> use new style patch", __func__); + + RTKBT_DBG("%s: reset_channel before get_eversion from bt controller", __func__); + ret_val = reset_channel(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to reset_channel, errno %d", __func__, ret_val); + goto fw_fail; + } + /* read_localversion(fw_info); */ + RTKBT_DBG("%s: get_eversion from bt controller", __func__); + + ret_val = get_eversion(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to get eversion, errno %d", __func__, ret_val); + goto fw_fail; + } + RTKBT_DBG("%s: Get eversion =%d", __func__, patch_entry->eversion); + if (memcmp(epatch_buf + buf_len - config_len - 4, EXTENSION_SECTION_SIGNATURE, 4)) { + RTKBT_ERR("%s: Failed to check extension section signature", __func__); + need_download_fw = 0; + } else { + uint8_t *temp; + temp = epatch_buf+buf_len-config_len - 5; + do { + if (*temp == 0x00) { + patch_lmp.opcode = *temp; + patch_lmp.length = *(temp-1); + patch_lmp.data = kzalloc(patch_lmp.length, GFP_KERNEL); + if (patch_lmp.data) { + int k; + for (k = 0; k < patch_lmp.length; k++) { + *(patch_lmp.data+k) = *(temp-2-k); + RTKBT_DBG("data = 0x%x", *(patch_lmp.data+k)); + } + } + RTKBT_DBG("%s: opcode = 0x%x, length = 0x%x, data = 0x%x", __func__, + patch_lmp.opcode, patch_lmp.length, *(patch_lmp.data)); + break; + } + temp -= *(temp-1) + 2; + } while (*temp != 0xFF); + + if (lmp_version != project_id[*(patch_lmp.data)]) { + RTKBT_ERR("%s: Default lmp_version 0x%04x, project_id[%d] 0x%04x " + "-> not match", __func__, lmp_version, *(patch_lmp.data), project_id[*(patch_lmp.data)]); + if (patch_lmp.data) + kfree(patch_lmp.data); + need_download_fw = 0; + } else { + RTKBT_INFO("%s: Default lmp_version 0x%04x, project_id[%d] 0x%04x " + "-> match", __func__, lmp_version, *(patch_lmp.data), project_id[*(patch_lmp.data)]); + if (patch_lmp.data) + kfree(patch_lmp.data); + if (memcmp(epatch_buf, RTK_EPATCH_SIGNATURE, 8)) { + RTKBT_ERR("%s: Check signature error", __func__); + need_download_fw = 0; + } else { + epatch_info = (struct rtk_epatch *)epatch_buf; + patch_entry->lmp_sub = (uint16_t)epatch_info->fw_version; + + RTKBT_DBG("%s: lmp version 0x%04x, fw_version 0x%x, " + "number_of_total_patch %d", __func__, + patch_entry->lmp_sub, epatch_info->fw_version, + epatch_info->number_of_total_patch); + + /* Get right epatch entry */ + p_epatch_entry = get_fw_patch_entry(epatch_info, patch_entry->eversion); + if (p_epatch_entry == NULL) { + RTKBT_WARN("%s: Failed to get fw patch entry", __func__); + ret_val = -1; + goto fw_fail ; + } + + buf_len = p_epatch_entry->patch_length + config_len; + RTKBT_DBG("buf_len = 0x%x", buf_len); + + buf = kzalloc(buf_len, GFP_KERNEL); + if (!buf) { + RTKBT_ERR("%s: Can't alloc memory for fw&config", __func__); + buf_len = -1; + } else { + memcpy(buf, &epatch_buf[p_epatch_entry->start_offset], p_epatch_entry->patch_length); + memcpy(&buf[p_epatch_entry->patch_length-4], &epatch_info->fw_version, 4); + kfree(p_epatch_entry); + } + vfree(epatch_buf); + RTKBT_INFO("%s: vfree(epatch_buf)", __func__); + epatch_buf = NULL; + + if (config_len) + memcpy(&buf[buf_len - config_len], config_file_buf, config_len); + } + } + } + } + + RTKBT_INFO("%s: fw%s exists, config file%s exists", __func__, + (buf_len > 0) ? "" : " not", (config_len > 0) ? "" : " not"); + + if (buf && buf_len > 0 && need_download_fw) + *buff = buf; + + RTKBT_DBG("%s: done", __func__); + + return buf_len; + +fw_fail: + return ret_val; +} + +#if SUSPNED_DW_FW +static int load_suspend_firmware(firmware_info *fw_info, uint8_t **buff) +{ + const struct firmware *fw, *cfg; + struct usb_device *udev; + patch_info *patch_entry; + char config_name[100] = {0}; + char fw_name[100] = {0}; + int fw_len = 0; + int ret_val; + + int config_len = 0, buf_len = -1; + uint8_t *buf = *buff, *config_file_buf = NULL; + uint8_t *epatch_buf = NULL; + + struct rtk_epatch *epatch_info = NULL; + uint8_t need_download_fw = 1; + struct rtk_extension_entry patch_lmp = {0}; + struct rtk_epatch_entry *p_epatch_entry = NULL; + uint16_t lmp_version; + RTKBT_DBG("%s: start", __func__); + + udev = fw_info->udev; + patch_entry = fw_info->patch_entry; + lmp_version = patch_entry->lmp_sub_default; + sprintf(config_name, "%s_suspend", patch_entry->config_name); + sprintf(fw_name, "%s_suspend", patch_entry->patch_name); + + RTKBT_INFO("%s: Default lmp version = 0x%04x, config file name[%s], " + "fw file name[%s]", __func__, lmp_version, config_name, fw_name); + + ret_val = request_firmware(&cfg, config_name, &udev->dev); + if (ret_val < 0) + config_len = 0; + else { + config_file_buf = vmalloc(cfg->size); + RTKBT_INFO("%s: epatch_buf = vmalloc(cfg->size)", __func__); + if (!config_file_buf) + return -ENOMEM; + memcpy(config_file_buf, cfg->data, cfg->size); + config_len = cfg->size; + release_firmware(cfg); + } + + ret_val = request_firmware(&fw, fw_name, &udev->dev); + if (ret_val < 0) + goto fw_fail; + else { + epatch_buf = vmalloc(fw->size); + RTKBT_INFO("%s: epatch_buf = vmalloc(fw->size, GFP_KERNEL)", __func__); + if (!epatch_buf) { + release_firmware(fw); + goto fw_fail; + } + memcpy(epatch_buf, fw->data, fw->size); + fw_len = fw->size; + buf_len = fw_len + config_len; + release_firmware(fw); + } + + RTKBT_DBG("%s: Not 8723a -> use new style patch", __func__); + + RTKBT_DBG("%s: get_eversion from bt controller", __func__); + + ret_val = get_eversion(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to get eversion, errno %d", __func__, ret_val); + goto fw_fail; + } + RTKBT_DBG("%s: Get eversion =%d", __func__, patch_entry->eversion); + if (memcmp(epatch_buf + buf_len - config_len - 4, EXTENSION_SECTION_SIGNATURE, 4)) { + RTKBT_ERR("%s: Failed to check extension section signature", __func__); + need_download_fw = 0; + } else { + uint8_t *temp; + temp = epatch_buf+buf_len-config_len - 5; + do { + if (*temp == 0x00) { + patch_lmp.opcode = *temp; + patch_lmp.length = *(temp-1); + patch_lmp.data = kzalloc(patch_lmp.length, GFP_KERNEL); + if (patch_lmp.data) { + int k; + for (k = 0; k < patch_lmp.length; k++) { + *(patch_lmp.data+k) = *(temp-2-k); + RTKBT_DBG("data = 0x%x", *(patch_lmp.data+k)); + } + } + RTKBT_DBG("%s: opcode = 0x%x, length = 0x%x, data = 0x%x", __func__, + patch_lmp.opcode, patch_lmp.length, *(patch_lmp.data)); + break; + } + temp -= *(temp-1) + 2; + } while (*temp != 0xFF); + + if (lmp_version != project_id[*(patch_lmp.data)]) { + RTKBT_ERR("%s: Default lmp_version 0x%04x, project_id[%d] 0x%04x " + "-> not match", __func__, lmp_version, *(patch_lmp.data), project_id[*(patch_lmp.data)]); + if (patch_lmp.data) + kfree(patch_lmp.data); + need_download_fw = 0; + } else { + RTKBT_INFO("%s: Default lmp_version 0x%04x, project_id[%d] 0x%04x " + "-> match", __func__, lmp_version, *(patch_lmp.data), project_id[*(patch_lmp.data)]); + if (patch_lmp.data) + kfree(patch_lmp.data); + if (memcmp(epatch_buf, RTK_EPATCH_SIGNATURE, 8)) { + RTKBT_ERR("%s: Check signature error", __func__); + need_download_fw = 0; + } else { + epatch_info = (struct rtk_epatch *)epatch_buf; + patch_entry->lmp_sub = (uint16_t)epatch_info->fw_version; + + RTKBT_DBG("%s: lmp version 0x%04x, fw_version 0x%x, " + "number_of_total_patch %d", __func__, + patch_entry->lmp_sub, epatch_info->fw_version, + epatch_info->number_of_total_patch); + + /* Get right epatch entry */ + p_epatch_entry = get_fw_patch_entry(epatch_info, patch_entry->eversion); + if (p_epatch_entry == NULL) { + RTKBT_WARN("%s: Failed to get fw patch entry", __func__); + ret_val = -1; + goto fw_fail ; + } + + buf_len = p_epatch_entry->patch_length + config_len; + RTKBT_DBG("buf_len = 0x%x", buf_len); + buf = kzalloc(buf_len, GFP_KERNEL); + if (!buf) { + RTKBT_ERR("%s: Can't alloc memory for fw&config", __func__); + buf_len = -1; + } else { + memcpy(buf, &epatch_buf[p_epatch_entry->start_offset], p_epatch_entry->patch_length); + memcpy(&buf[p_epatch_entry->patch_length-4], &epatch_info->fw_version, 4); + kfree(p_epatch_entry); + } + vfree(epatch_buf); + RTKBT_INFO("%s: vfree(epatch_buf)", __func__); + epatch_buf = NULL; + + if (config_len) + memcpy(&buf[buf_len - config_len], config_file_buf, config_len); + } + } + } + + if (config_file_buf) { + vfree(config_file_buf); + config_file_buf = NULL; + RTKBT_INFO("%s: vfree(config_file_buf)", __func__); + } + + RTKBT_INFO("%s: fw%s exists, config file%s exists", __func__, + (buf_len > 0) ? "" : " not", (config_len > 0) ? "" : " not"); + + if (buf && buf_len > 0 && need_download_fw) + *buff = buf; + + RTKBT_DBG("%s: done", __func__); + + return buf_len; + +fw_fail: + if (config_file_buf) { + vfree(config_file_buf); + config_file_buf = NULL; + } + RTKBT_INFO("%s: fw_fail vfree(config_file_buf)", __func__); + return ret_val; +} +#endif + +int get_firmware(firmware_info *fw_info, int cached) +{ + patch_info *patch_entry = fw_info->patch_entry; + + RTKBT_INFO("%s: start, cached %d, patch_entry->fw_len= %d", __func__, cached, patch_entry->fw_len); + + if (cached > 0) { + if (patch_entry->fw_len > 0) { + fw_info->fw_data = kzalloc(patch_entry->fw_len, GFP_KERNEL); + if (!fw_info->fw_data) + return -ENOMEM; + memcpy(fw_info->fw_data, patch_entry->fw_cache, patch_entry->fw_len); + fw_info->fw_len = patch_entry->fw_len; + } else { + fw_info->fw_len = load_firmware(fw_info, &fw_info->fw_data); + if (fw_info->fw_len <= 0) + return -1; + } + } else { + fw_info->fw_len = load_firmware(fw_info, &fw_info->fw_data); + if (fw_info->fw_len <= 0) + return -1; + } + + return 0; +} + +#if SUSPNED_DW_FW +static int get_suspend_firmware(firmware_info *fw_info, int cached) +{ + patch_info *patch_entry = fw_info->patch_entry; + + RTKBT_INFO("%s: start, cached %d, patch_entry->fw_len= %d", __func__, cached, patch_entry->fw_len); + + if (cached > 0) { + if (patch_entry->fw_len > 0) { + fw_info->fw_data = kzalloc(patch_entry->fw_len, GFP_KERNEL); + if (!fw_info->fw_data) + return -ENOMEM; + memcpy(fw_info->fw_data, patch_entry->fw_cache, patch_entry->fw_len); + fw_info->fw_len = patch_entry->fw_len; + } else { + fw_info->fw_len = load_suspend_firmware(fw_info, &fw_info->fw_data); + if (fw_info->fw_len <= 0) + return -1; + } + } else { + fw_info->fw_len = load_suspend_firmware(fw_info, &fw_info->fw_data); + if (fw_info->fw_len <= 0) + return -1; + } + + return 0; +} +#endif + +/* + * Open the log message only if in debugging, + * or it will decelerate download procedure. + */ +int download_data(firmware_info *fw_info) +{ + download_cp *cmd_para; + download_rp *evt_para; + uint8_t *pcur; + int pkt_len, frag_num, frag_len; + int i, ret_val; + int ncmd = 1, step = 1; + + RTKBT_DBG("%s: start", __func__); + + cmd_para = (download_cp *)fw_info->req_para; + evt_para = (download_rp *)fw_info->rsp_para; + pcur = fw_info->fw_data; + pkt_len = CMD_HDR_LEN + sizeof(download_cp); + frag_num = fw_info->fw_len / PATCH_SEG_MAX + 1; + frag_len = PATCH_SEG_MAX; + + for (i = 0; i < frag_num; i++) { + cmd_para->index = i ? ((i - 1) % 0x7f + 1) : 0; + if (i == (frag_num - 1)) { + cmd_para->index |= DATA_END; + frag_len = fw_info->fw_len % PATCH_SEG_MAX; + pkt_len -= (PATCH_SEG_MAX - frag_len); + } + fw_info->cmd_hdr->opcode = cpu_to_le16(DOWNLOAD_OPCODE); + fw_info->cmd_hdr->plen = sizeof(uint8_t) + frag_len; + fw_info->pkt_len = pkt_len; + memcpy(cmd_para->data, pcur, frag_len); + + if (step > 0) { + ret_val = send_hci_cmd(fw_info); + if (ret_val < 0) { + RTKBT_DBG("%s: Failed to send frag num %d", __func__, cmd_para->index); + return ret_val; + } else + RTKBT_DBG("%s: Send frag num %d", __func__, cmd_para->index); + + if (--step > 0 && i < frag_num - 1) { + RTKBT_DBG("%s: Continue to send frag num %d", __func__, cmd_para->index + 1); + pcur += PATCH_SEG_MAX; + continue; + } + } + + while (ncmd > 0) { + ret_val = rcv_hci_evt(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: rcv_hci_evt err %d", __func__, ret_val); + return ret_val; + } else { + RTKBT_DBG("%s: Receive acked frag num %d", __func__, evt_para->index); + ncmd--; + } + + if (0 != evt_para->status) { + RTKBT_ERR("%s: Receive acked frag num %d, err status %d", + __func__, ret_val, evt_para->status); + return -1; + } + + if ((evt_para->index & DATA_END) || (evt_para->index == frag_num - 1)) { + RTKBT_DBG("%s: Receive last acked index %d", __func__, evt_para->index); + goto end; + } + } + + ncmd = step = fw_info->cmd_cmp->ncmd; + pcur += PATCH_SEG_MAX; + RTKBT_DBG("%s: HCI command packet num %d", __func__, ncmd); + } + + /* + * It is tricky that Host cannot receive DATA_END index from BT + * controller, at least for 8723au. We are doomed if failed. + */ +#if 0 + /* Continue to receive the responsed events until last index occurs */ + if (i == frag_num) { + RTKBT_DBG("%s: total frag count %d", __func__, frag_num); + while (!(evt_para->index & DATA_END)) { + ret_val = rcv_hci_evt(fw_info); + if (ret_val < 0) { + RTKBT_ERR("%s: rcv_hci_evt err %d", __func__, ret_val); + return ret_val; + } + if (0 != evt_para->status) + return -1; + RTKBT_DBG("%s: continue to receive acked frag num %d", __func__, evt_para->index); + } + } +#endif +end: + RTKBT_INFO("%s: done, sent %d frag pkts, received %d frag events", + __func__, cmd_para->index, evt_para->index); + return fw_info->fw_len; +} + +int download_patch(firmware_info *fw_info, int cached) +{ + int ret_val = 0; + + RTKBT_DBG("%s: Download fw patch start, cached %d", __func__, cached); + + if (!fw_info || !fw_info->patch_entry) { + RTKBT_ERR("%s: No patch entry exists(fw_info %p)", __func__, fw_info); + ret_val = -1; + goto end; + } + + /* + * step1: get local firmware if existed + * step2: check firmware version + * step3: download firmware if updated + */ + ret_val = get_firmware(fw_info, cached); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to get firmware", __func__); + goto end; + } + +#if SUSPNED_DW_FW + if (fw_info_4_suspend) { + RTKBT_DBG("%s: get suspend fw first cached %d", __func__, cached); + ret_val = get_suspend_firmware(fw_info_4_suspend, cached); + if (ret_val < 0) { + RTKBT_ERR("%s: Failed to get suspend firmware", __func__); + goto end; + } + } +#endif + + /*check the length of fw to be download*/ + RTKBT_DBG("%s: Check fw_info->fw_len:%d max_patch_size %d", __func__, fw_info->fw_len, fw_info->patch_entry->max_patch_size); + if (fw_info->fw_len > fw_info->patch_entry->max_patch_size) { + RTKBT_ERR("%s: Total length of fw&config(%08x) larger than max_patch_size 0x%08x", __func__, fw_info->fw_len, fw_info->patch_entry->max_patch_size); + ret_val = -1; + goto free; + } + + ret_val = check_fw_version(fw_info); + + if (2 == ret_val) { + RTKBT_ERR("%s: Cold reset bt chip only download", __func__); + ret_val = download_data(fw_info); + if (ret_val > 0) + RTKBT_ERR("%s: Download fw patch done, fw len %d", __func__, ret_val); + } else if (1 == ret_val) { + /* reset bt chip to update Fw patch */ + ret_val = reset_controller(fw_info); + RTKBT_ERR("%s: reset bt chip to update Fw patch, fw len %d", __func__, ret_val); + ret_val = download_data(fw_info); + if (ret_val > 0) + RTKBT_ERR("%s: Download fw patch done, fw len %d", __func__, ret_val); + } + + +free: + /* Free fw data after download finished */ + kfree(fw_info->fw_data); + fw_info->fw_data = NULL; + +end: + return ret_val; +} + +#if SUSPNED_DW_FW +static int download_suspend_patch(firmware_info *fw_info, int cached) +{ + int ret_val = 0; + + RTKBT_DBG("%s: Download fw patch start, cached %d", __func__, cached); + + if (!fw_info || !fw_info->patch_entry) { + RTKBT_ERR("%s: No patch entry exists(fw_info %p)", __func__, fw_info); + ret_val = -1; + goto end; + } + + /*check the length of fw to be download*/ + RTKBT_DBG("%s:Check RTK_PATCH_LENGTH fw_info->fw_len:%d", __func__, fw_info->fw_len); + if (fw_info->fw_len > RTK_PATCH_LENGTH_MAX || fw_info->fw_len == 0) { + RTKBT_ERR("%s: Total length of fw&config larger than allowed 24K or no fw len:%d", __func__, fw_info->fw_len); + ret_val = -1; + goto free; + } + + ret_val = check_fw_version(fw_info); + + if (2 == ret_val) { + RTKBT_ERR("%s: Cold reset bt chip only download", __func__); + ret_val = download_data(fw_info); + if (ret_val > 0) + RTKBT_ERR("%s: Download fw patch done, fw len %d", __func__, ret_val); + } else if (1 == ret_val) { + /* reset bt chip to update Fw patch */ + ret_val = reset_controller(fw_info); + RTKBT_ERR("%s: reset bt chip to update Fw patch, fw len %d", __func__, ret_val); + ret_val = download_data(fw_info); + if (ret_val > 0) + RTKBT_ERR("%s: Download fw patch done, fw len %d", __func__, ret_val); + } + + +free: + /* Free fw data after download finished */ + kfree(fw_info->fw_data); + fw_info->fw_data = NULL; + +end: + return ret_val; +} + +static void suspend_firmware_info_init(firmware_info *fw_info) +{ + RTKBT_DBG("%s: start", __func__); + if (!fw_info) + return; + + fw_info_4_suspend = kzalloc(sizeof(*fw_info), GFP_KERNEL); + if (!fw_info_4_suspend) + goto error; + + fw_info_4_suspend->send_pkt = kzalloc(PKT_LEN, GFP_KERNEL); + if (!fw_info_4_suspend->send_pkt) { + kfree(fw_info_4_suspend); + goto error; + } + + fw_info_4_suspend->rcv_pkt = kzalloc(PKT_LEN, GFP_KERNEL); + if (!fw_info_4_suspend->rcv_pkt) { + kfree(fw_info_4_suspend->send_pkt); + kfree(fw_info_4_suspend); + goto error; + } + + fw_info_4_suspend->patch_entry = get_suspend_fw_table_entry(fw_info->udev); + if (!fw_info_4_suspend->patch_entry) { + kfree(fw_info_4_suspend->rcv_pkt); + kfree(fw_info_4_suspend->send_pkt); + kfree(fw_info_4_suspend); + goto error; + } + + fw_info_4_suspend->intf = fw_info->intf; + fw_info_4_suspend->udev = fw_info->udev; + fw_info_4_suspend->cmd_hdr = (struct hci_command_hdr *)(fw_info_4_suspend->send_pkt); + fw_info_4_suspend->evt_hdr = (struct hci_event_hdr *)(fw_info_4_suspend->rcv_pkt); + fw_info_4_suspend->cmd_cmp = (struct hci_ev_cmd_complete *)(fw_info_4_suspend->rcv_pkt + EVT_HDR_LEN); + fw_info_4_suspend->req_para = fw_info_4_suspend->send_pkt + CMD_HDR_LEN; + fw_info_4_suspend->rsp_para = fw_info_4_suspend->rcv_pkt + EVT_HDR_LEN + CMD_CMP_LEN; + fw_info_4_suspend->pipe_in = fw_info->pipe_in; + fw_info_4_suspend->pipe_out = fw_info->pipe_out; + + return; +error: + RTKBT_DBG("%s: fail !", __func__); + fw_info_4_suspend = NULL; + return; +} +#endif + +#if SET_WAKEUP_DEVICE +static void set_wakeup_device_from_conf(firmware_info *fw_info) +{ + uint8_t paired_wakeup_bdaddr[7]; + uint8_t num = 0; + int i; + struct file *fp; + mm_segment_t fs; + loff_t pos; + + memset(paired_wakeup_bdaddr, 0, 7); + fp = filp_open(SET_WAKEUP_DEVICE_CONF, O_RDWR, 0); + if (!IS_ERR(fp)) { + fs = get_fs(); + set_fs(KERNEL_DS); + pos = 0; + /* read number */ + vfs_read(fp, &num, 1, &pos); + RTKBT_DBG("read number = %d", num); + if (num) { + for (i = 0; i < num; i++) { + vfs_read(fp, paired_wakeup_bdaddr, 7, &pos); + RTKBT_DBG("paired_wakeup_bdaddr: 0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x", + paired_wakeup_bdaddr[1], paired_wakeup_bdaddr[2], paired_wakeup_bdaddr[3], + paired_wakeup_bdaddr[4], paired_wakeup_bdaddr[5], paired_wakeup_bdaddr[6]); + set_wakeup_device(fw_info, paired_wakeup_bdaddr); + } + } + filp_close(fp, NULL); + set_fs(fs); + } else { + RTKBT_ERR("open wakeup config file fail! errno = %ld", PTR_ERR(fp)); + } +} +#endif + +firmware_info *firmware_info_init(struct usb_interface *intf) +{ + struct usb_device *udev = interface_to_usbdev(intf); + firmware_info *fw_info; + + RTKBT_DBG("%s: start", __func__); + + fw_info = kzalloc(sizeof(*fw_info), GFP_KERNEL); + if (!fw_info) + return NULL; + + fw_info->send_pkt = kzalloc(PKT_LEN, GFP_KERNEL); + if (!fw_info->send_pkt) { + kfree(fw_info); + return NULL; + } + + fw_info->rcv_pkt = kzalloc(PKT_LEN, GFP_KERNEL); + if (!fw_info->rcv_pkt) { + kfree(fw_info->send_pkt); + kfree(fw_info); + return NULL; + } + + fw_info->patch_entry = get_fw_table_entry(udev); + if (!fw_info->patch_entry) { + kfree(fw_info->rcv_pkt); + kfree(fw_info->send_pkt); + kfree(fw_info); + return NULL; + } + + fw_info->intf = intf; + fw_info->udev = udev; + fw_info->pipe_in = usb_rcvintpipe(fw_info->udev, INTR_EP); + fw_info->pipe_out = usb_sndctrlpipe(fw_info->udev, CTRL_EP); + fw_info->cmd_hdr = (struct hci_command_hdr *)(fw_info->send_pkt); + fw_info->evt_hdr = (struct hci_event_hdr *)(fw_info->rcv_pkt); + fw_info->cmd_cmp = (struct hci_ev_cmd_complete *)(fw_info->rcv_pkt + EVT_HDR_LEN); + fw_info->req_para = fw_info->send_pkt + CMD_HDR_LEN; + fw_info->rsp_para = fw_info->rcv_pkt + EVT_HDR_LEN + CMD_CMP_LEN; + +#if SUSPNED_DW_FW + suspend_firmware_info_init(fw_info); +#endif + +#if BTUSB_RPM + RTKBT_INFO("%s: Auto suspend is enabled", __func__); + usb_enable_autosuspend(udev); + pm_runtime_set_autosuspend_delay(&(udev->dev), 2000); +#else + RTKBT_INFO("%s: Auto suspend is disabled", __func__); + usb_disable_autosuspend(udev); +#endif + +#if BTUSB_WAKEUP_HOST + device_wakeup_enable(&udev->dev); +#endif + + return fw_info; +} + +void firmware_info_destroy(struct usb_interface *intf) +{ + firmware_info *fw_info; + struct usb_device *udev; + struct btusb_data *data; + + udev = interface_to_usbdev(intf); + data = usb_get_intfdata(intf); + + fw_info = data->fw_info; + if (!fw_info) + return; + +#if BTUSB_RPM + usb_disable_autosuspend(udev); +#endif + + /* + * In order to reclaim fw data mem, we free fw_data immediately + * after download patch finished instead of here. + */ + kfree(fw_info->rcv_pkt); + kfree(fw_info->send_pkt); + kfree(fw_info); + +#if SUSPNED_DW_FW + if (!fw_info_4_suspend) + return; + + kfree(fw_info_4_suspend->rcv_pkt); + kfree(fw_info_4_suspend->send_pkt); + kfree(fw_info_4_suspend); + fw_info_4_suspend = NULL; +#endif +} + +static struct usb_driver btusb_driver; + +static struct usb_device_id btusb_table[] = { + { .match_flags = USB_DEVICE_ID_MATCH_VENDOR | + USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x0bda, + .bInterfaceClass = 0xe0, + .bInterfaceSubClass = 0x01, + .bInterfaceProtocol = 0x01 }, + + { .match_flags = USB_DEVICE_ID_MATCH_VENDOR | + USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x13d3, + .bInterfaceClass = 0xe0, + .bInterfaceSubClass = 0x01, + .bInterfaceProtocol = 0x01 }, + + { } +}; + +MODULE_DEVICE_TABLE(usb, btusb_table); + +static int inc_tx(struct btusb_data *data) +{ + unsigned long flags; + int rv; + + spin_lock_irqsave(&data->txlock, flags); + rv = test_bit(BTUSB_SUSPENDING, &data->flags); + if (!rv) + data->tx_in_flight++; + spin_unlock_irqrestore(&data->txlock, flags); + + return rv; +} + +void check_sco_event(struct urb *urb) +{ + u8 *opcode = (u8 *)(urb->transfer_buffer); + u8 status; + static uint16_t sco_handle; + uint16_t handle; + struct hci_dev *hdev = urb->context; + struct btusb_data *data = GET_DRV_DATA(hdev); + + switch (*opcode) { + case HCI_EV_SYNC_CONN_COMPLETE: + RTKBT_INFO("%s: HCI_EV_SYNC_CONN_COMPLETE(0x%02x)", __func__, *opcode); + status = *(opcode + 2); + sco_handle = *(opcode + 3) | *(opcode + 4) << 8; + if (status == 0) { + hdev->conn_hash.sco_num++; + schedule_work(&data->work); + } + break; + case HCI_EV_DISCONN_COMPLETE: + RTKBT_INFO("%s: HCI_EV_DISCONN_COMPLETE(0x%02x)", __func__, *opcode); + status = *(opcode + 2); + handle = *(opcode + 3) | *(opcode + 4) << 8; + if (status == 0 && sco_handle == handle) { + hdev->conn_hash.sco_num--; + schedule_work(&data->work); + } + break; + default: + RTKBT_DBG("%s: event 0x%02x", __func__, *opcode); + break; + } +} + +static void btusb_intr_complete(struct urb *urb) +{ + struct hci_dev *hdev = urb->context; + struct btusb_data *data = GET_DRV_DATA(hdev); + int err; + + RTKBT_DBG("%s: urb %p status %d count %d ", __func__, + urb, urb->status, urb->actual_length); + + /* check_sco_event(urb); */ + + if (!test_bit(HCI_RUNNING, &hdev->flags)) + return; + + + if (urb->status == 0) { + hdev->stat.byte_rx += urb->actual_length; + + if (hci_recv_fragment(hdev, HCI_EVENT_PKT, + urb->transfer_buffer, + urb->actual_length) < 0) { + RTKBT_ERR("%s: Corrupted event packet", __func__); + hdev->stat.err_rx++; + } + } + /* Avoid suspend failed when usb_kill_urb */ + else if (urb->status == -ENOENT) { + return; + } + + + if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) + return; + + usb_mark_last_busy(data->udev); + usb_anchor_urb(urb, &data->intr_anchor); + + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err < 0) { + /* EPERM: urb is being killed; + * ENODEV: device got disconnected */ + if (err != -EPERM && err != -ENODEV) + RTKBT_ERR("%s: Failed to re-submit urb %p, err %d", + __func__, urb, err); + usb_unanchor_urb(urb); + } +} + +static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) +{ + struct btusb_data *data = GET_DRV_DATA(hdev); + struct urb *urb; + unsigned char *buf; + unsigned int pipe; + int err, size; + + if (!data->intr_ep) + return -ENODEV; + + urb = usb_alloc_urb(0, mem_flags); + if (!urb) + return -ENOMEM; + + size = le16_to_cpu(data->intr_ep->wMaxPacketSize); + + buf = kmalloc(size, mem_flags); + if (!buf) { + usb_free_urb(urb); + return -ENOMEM; + } + + RTKBT_DBG("%s: mMaxPacketSize %d, bEndpointAddress 0x%02x", + __func__, size, data->intr_ep->bEndpointAddress); + + pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); + + usb_fill_int_urb(urb, data->udev, pipe, buf, size, + btusb_intr_complete, hdev, + data->intr_ep->bInterval); + + urb->transfer_flags |= URB_FREE_BUFFER; + + usb_anchor_urb(urb, &data->intr_anchor); + + err = usb_submit_urb(urb, mem_flags); + if (err < 0) { + RTKBT_ERR("%s: Failed to submit urb %p, err %d", + __func__, urb, err); + usb_unanchor_urb(urb); + } + + usb_free_urb(urb); + + return err; +} + +static void btusb_bulk_complete(struct urb *urb) +{ + struct hci_dev *hdev = urb->context; + struct btusb_data *data = GET_DRV_DATA(hdev); + int err; + + RTKBT_DBG("%s: urb %p status %d count %d", + __func__, urb, urb->status, urb->actual_length); + + if (!test_bit(HCI_RUNNING, &hdev->flags)) + return; + + if (urb->status == 0) { + hdev->stat.byte_rx += urb->actual_length; + + if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT, + urb->transfer_buffer, + urb->actual_length) < 0) { + RTKBT_ERR("%s: Corrupted ACL packet", __func__); + hdev->stat.err_rx++; + } + } + /* Avoid suspend failed when usb_kill_urb */ + else if (urb->status == -ENOENT) { + return; + } + + + if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) + return; + + usb_anchor_urb(urb, &data->bulk_anchor); + usb_mark_last_busy(data->udev); + + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err < 0) { + /* -EPERM: urb is being killed; + * -ENODEV: device got disconnected */ + if (err != -EPERM && err != -ENODEV) + RTKBT_ERR("btusb_bulk_complete %s urb %p failed to resubmit (%d)", + hdev->name, urb, -err); + usb_unanchor_urb(urb); + } +} + +static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) +{ + struct btusb_data *data = GET_DRV_DATA(hdev); + struct urb *urb; + unsigned char *buf; + unsigned int pipe; + int err, size = HCI_MAX_FRAME_SIZE; + + RTKBT_DBG("%s: hdev name %s", __func__, hdev->name); + + if (!data->bulk_rx_ep) + return -ENODEV; + + urb = usb_alloc_urb(0, mem_flags); + if (!urb) + return -ENOMEM; + + buf = kmalloc(size, mem_flags); + if (!buf) { + usb_free_urb(urb); + return -ENOMEM; + } + + pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); + + usb_fill_bulk_urb(urb, data->udev, pipe, + buf, size, btusb_bulk_complete, hdev); + + urb->transfer_flags |= URB_FREE_BUFFER; + + usb_mark_last_busy(data->udev); + usb_anchor_urb(urb, &data->bulk_anchor); + + err = usb_submit_urb(urb, mem_flags); + if (err < 0) { + RTKBT_ERR("%s: Failed to submit urb %p, err %d", __func__, urb, err); + usb_unanchor_urb(urb); + } + + usb_free_urb(urb); + + return err; +} + +static void btusb_isoc_complete(struct urb *urb) +{ + struct hci_dev *hdev = urb->context; + struct btusb_data *data = GET_DRV_DATA(hdev); + int i, err; + + + RTKBT_DBG("%s: urb %p status %d count %d", + __func__, urb, urb->status, urb->actual_length); + + if (!test_bit(HCI_RUNNING, &hdev->flags)) + return; + + if (urb->status == 0) { + for (i = 0; i < urb->number_of_packets; i++) { + unsigned int offset = urb->iso_frame_desc[i].offset; + unsigned int length = urb->iso_frame_desc[i].actual_length; + + if (urb->iso_frame_desc[i].status) + continue; + + hdev->stat.byte_rx += length; + + if (hci_recv_fragment(hdev, HCI_SCODATA_PKT, + urb->transfer_buffer + offset, + length) < 0) { + RTKBT_ERR("%s: Corrupted SCO packet", __func__); + hdev->stat.err_rx++; + } + } + } + /* Avoid suspend failed when usb_kill_urb */ + else if (urb->status == -ENOENT) { + return; + } + + + if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) + return; + + usb_anchor_urb(urb, &data->isoc_anchor); + i = 0; +retry: + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err < 0) { + /* -EPERM: urb is being killed; + * -ENODEV: device got disconnected */ + if (err != -EPERM && err != -ENODEV) + RTKBT_ERR("%s: Failed to re-sumbit urb %p, retry %d, err %d", + __func__, urb, i, err); + if (i < 10) { + i++; + mdelay(1); + goto retry; + } + + usb_unanchor_urb(urb); + } +} + +static inline void fill_isoc_descriptor(struct urb *urb, int len, int mtu) +{ + int i, offset = 0; + + RTKBT_DBG("%s: len %d mtu %d", __func__, len, mtu); + + for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; + i++, offset += mtu, len -= mtu) { + urb->iso_frame_desc[i].offset = offset; + urb->iso_frame_desc[i].length = mtu; + } + + if (len && i < BTUSB_MAX_ISOC_FRAMES) { + urb->iso_frame_desc[i].offset = offset; + urb->iso_frame_desc[i].length = len; + i++; + } + + urb->number_of_packets = i; +} + +static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) +{ + struct btusb_data *data = GET_DRV_DATA(hdev); + struct urb *urb; + unsigned char *buf; + unsigned int pipe; + int err, size; + + if (!data->isoc_rx_ep) + return -ENODEV; + + urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); + if (!urb) + return -ENOMEM; + + size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * + BTUSB_MAX_ISOC_FRAMES; + + buf = kmalloc(size, mem_flags); + if (!buf) { + usb_free_urb(urb); + return -ENOMEM; + } + + pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); + + urb->dev = data->udev; + urb->pipe = pipe; + urb->context = hdev; + urb->complete = btusb_isoc_complete; + urb->interval = data->isoc_rx_ep->bInterval; + + urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; + urb->transfer_buffer = buf; + urb->transfer_buffer_length = size; + + fill_isoc_descriptor(urb, size, + le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); + + usb_anchor_urb(urb, &data->isoc_anchor); + + err = usb_submit_urb(urb, mem_flags); + if (err < 0) { + RTKBT_ERR("%s: Failed to submit urb %p, err %d", __func__, urb, err); + usb_unanchor_urb(urb); + } + + usb_free_urb(urb); + + return err; +} + +static void btusb_tx_complete(struct urb *urb) +{ + struct sk_buff *skb = urb->context; + struct hci_dev *hdev = (struct hci_dev *) skb->dev; + struct btusb_data *data = GET_DRV_DATA(hdev); + + if (!test_bit(HCI_RUNNING, &hdev->flags)) + goto done; + + if (!urb->status) + hdev->stat.byte_tx += urb->transfer_buffer_length; + else + hdev->stat.err_tx++; + +done: + spin_lock(&data->txlock); + data->tx_in_flight--; + spin_unlock(&data->txlock); + + kfree(urb->setup_packet); + + kfree_skb(skb); +} + +static void btusb_isoc_tx_complete(struct urb *urb) +{ + struct sk_buff *skb = urb->context; + struct hci_dev *hdev = (struct hci_dev *) skb->dev; + + RTKBT_DBG("%s: urb %p status %d count %d", + __func__, urb, urb->status, urb->actual_length); + + if (skb && hdev) { + if (!test_bit(HCI_RUNNING, &hdev->flags)) + goto done; + + if (!urb->status) + hdev->stat.byte_tx += urb->transfer_buffer_length; + else + hdev->stat.err_tx++; + } else + RTKBT_ERR("%s: skb 0x%p hdev 0x%p", __func__, skb, hdev); + +done: + kfree(urb->setup_packet); + + kfree_skb(skb); +} + +static int btusb_open(struct hci_dev *hdev) +{ + struct btusb_data *data = GET_DRV_DATA(hdev); + int err = 0; + + RTKBT_INFO("%s: Start, PM usage count %d", __func__, + atomic_read(&(data->intf->pm_usage_cnt))); + + err = usb_autopm_get_interface(data->intf); + if (err < 0) + return err; + + data->intf->needs_remote_wakeup = 1; + + if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) + goto done; + + if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) + goto done; + + err = btusb_submit_intr_urb(hdev, GFP_KERNEL); + if (err < 0) + goto failed; + + err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); + if (err < 0) { + mdelay(URB_CANCELING_DELAY_MS); + usb_kill_anchored_urbs(&data->intr_anchor); + goto failed; + } + + set_bit(BTUSB_BULK_RUNNING, &data->flags); + btusb_submit_bulk_urb(hdev, GFP_KERNEL); + +done: + usb_autopm_put_interface(data->intf); + RTKBT_INFO("%s: End, PM usage count %d", __func__, + atomic_read(&(data->intf->pm_usage_cnt))); + return 0; + +failed: + clear_bit(BTUSB_INTR_RUNNING, &data->flags); + clear_bit(HCI_RUNNING, &hdev->flags); + usb_autopm_put_interface(data->intf); + RTKBT_ERR("%s: Failed, PM usage count %d", __func__, + atomic_read(&(data->intf->pm_usage_cnt))); + return err; +} + +static void btusb_stop_traffic(struct btusb_data *data) +{ + mdelay(URB_CANCELING_DELAY_MS); + usb_kill_anchored_urbs(&data->intr_anchor); + usb_kill_anchored_urbs(&data->bulk_anchor); + usb_kill_anchored_urbs(&data->isoc_anchor); +} + +static int btusb_close(struct hci_dev *hdev) +{ + struct btusb_data *data = GET_DRV_DATA(hdev); + int i, err; + + RTKBT_INFO("%s: hci running %lu", __func__, hdev->flags & HCI_RUNNING); + + if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) + return 0; + + for (i = 0; i < NUM_REASSEMBLY; i++) { + if (hdev->reassembly[i]) { + RTKBT_DBG("%s: free ressembly[%d]", __func__, i); + kfree_skb(hdev->reassembly[i]); + hdev->reassembly[i] = NULL; + } + } + + cancel_work_sync(&data->work); + cancel_work_sync(&data->waker); + + clear_bit(BTUSB_ISOC_RUNNING, &data->flags); + clear_bit(BTUSB_BULK_RUNNING, &data->flags); + clear_bit(BTUSB_INTR_RUNNING, &data->flags); + + btusb_stop_traffic(data); + err = usb_autopm_get_interface(data->intf); + if (err < 0) + goto failed; + + data->intf->needs_remote_wakeup = 0; + usb_autopm_put_interface(data->intf); + +failed: + mdelay(URB_CANCELING_DELAY_MS); + usb_scuttle_anchored_urbs(&data->deferred); + return 0; +} + +static int btusb_flush(struct hci_dev *hdev) +{ + struct btusb_data *data = GET_DRV_DATA(hdev); + + RTKBT_DBG("%s", __func__); + + mdelay(URB_CANCELING_DELAY_MS); + usb_kill_anchored_urbs(&data->tx_anchor); + + return 0; +} + + +static int btusb_send_frame(struct sk_buff *skb) +{ + struct hci_dev *hdev = (struct hci_dev *) skb->dev; + + struct btusb_data *data = GET_DRV_DATA(hdev); + struct usb_ctrlrequest *dr; + struct urb *urb; + unsigned int pipe; + int err; + int retries = 0; + + RTKBT_DBG("%s: hdev %p, btusb data %p, pkt type %d", + __func__, hdev, data, bt_cb(skb)->pkt_type); + + if (!test_bit(HCI_RUNNING, &hdev->flags)) + return -EBUSY; + + + + switch (bt_cb(skb)->pkt_type) { + case HCI_COMMAND_PKT: + print_command(skb); + urb = usb_alloc_urb(0, GFP_ATOMIC); + if (!urb) + return -ENOMEM; + + dr = kmalloc(sizeof(*dr), GFP_ATOMIC); + if (!dr) { + usb_free_urb(urb); + return -ENOMEM; + } + + dr->bRequestType = data->cmdreq_type; + dr->bRequest = 0; + dr->wIndex = 0; + dr->wValue = 0; + dr->wLength = __cpu_to_le16(skb->len); + + pipe = usb_sndctrlpipe(data->udev, 0x00); + + usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, + skb->data, skb->len, btusb_tx_complete, skb); + + hdev->stat.cmd_tx++; + break; + + case HCI_ACLDATA_PKT: + print_acl(skb, 1); + if (!data->bulk_tx_ep) + return -ENODEV; + + urb = usb_alloc_urb(0, GFP_ATOMIC); + if (!urb) + return -ENOMEM; + + pipe = usb_sndbulkpipe(data->udev, + data->bulk_tx_ep->bEndpointAddress); + + usb_fill_bulk_urb(urb, data->udev, pipe, + skb->data, skb->len, btusb_tx_complete, skb); + + hdev->stat.acl_tx++; + break; + + case HCI_SCODATA_PKT: + print_sco(skb, 1); + if (!data->isoc_tx_ep || SCO_NUM < 1) { + kfree(skb); + return -ENODEV; + } + + urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); + if (!urb) { + RTKBT_ERR("%s: Failed to allocate mem for sco pkts", __func__); + kfree(skb); + return -ENOMEM; + } + + pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); + + usb_fill_int_urb(urb, data->udev, pipe, + skb->data, skb->len, btusb_isoc_tx_complete, + skb, data->isoc_tx_ep->bInterval); + + urb->transfer_flags = URB_ISO_ASAP; + + fill_isoc_descriptor(urb, skb->len, + le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); + + hdev->stat.sco_tx++; + goto skip_waking; + + default: + return -EILSEQ; + } + + err = inc_tx(data); + if (err) { + usb_anchor_urb(urb, &data->deferred); + schedule_work(&data->waker); + err = 0; + goto done; + } + +skip_waking: + usb_anchor_urb(urb, &data->tx_anchor); +retry: + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err < 0) { + RTKBT_ERR("%s: Failed to submit urb %p, pkt type %d, err %d, retries %d", + __func__, urb, bt_cb(skb)->pkt_type, err, retries); + if ((bt_cb(skb)->pkt_type != HCI_SCODATA_PKT) && (retries < 10)) { + mdelay(1); + + if (bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) + print_error_command(skb); + retries++; + goto retry; + } + kfree(urb->setup_packet); + usb_unanchor_urb(urb); + } else + usb_mark_last_busy(data->udev); + usb_free_urb(urb); + +done: + return err; +} + +#if LINUX_VERSION_CODE <= KERNEL_VERSION(3, 4, 0) +static void btusb_destruct(struct hci_dev *hdev) +{ + struct btusb_data *data = GET_DRV_DATA(hdev); + + RTKBT_DBG("%s: name %s", __func__, hdev->name); + + kfree(data); +} +#endif + +static void btusb_notify(struct hci_dev *hdev, unsigned int evt) +{ + struct btusb_data *data = GET_DRV_DATA(hdev); + + RTKBT_DBG("%s: name %s, evt %d", __func__, hdev->name, evt); + + if (SCO_NUM != data->sco_num) { + data->sco_num = SCO_NUM; + schedule_work(&data->work); + } +} + +static inline int set_isoc_interface(struct hci_dev *hdev, int altsetting) +{ + struct btusb_data *data = GET_DRV_DATA(hdev); + struct usb_interface *intf = data->isoc; + struct usb_endpoint_descriptor *ep_desc; + int i, err; + + if (!data->isoc) + return -ENODEV; + + err = usb_set_interface(data->udev, 1, altsetting); + if (err < 0) { + RTKBT_ERR("%s: Failed to set interface, altsetting %d, err %d", + __func__, altsetting, err); + return err; + } + + data->isoc_altsetting = altsetting; + + data->isoc_tx_ep = NULL; + data->isoc_rx_ep = NULL; + + for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { + ep_desc = &intf->cur_altsetting->endpoint[i].desc; + + if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { + data->isoc_tx_ep = ep_desc; + continue; + } + + if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { + data->isoc_rx_ep = ep_desc; + continue; + } + } + + if (!data->isoc_tx_ep || !data->isoc_rx_ep) { + RTKBT_ERR("%s: Invalid SCO descriptors", __func__); + return -ENODEV; + } + + return 0; +} + +static void btusb_work(struct work_struct *work) +{ + struct btusb_data *data = container_of(work, struct btusb_data, work); + struct hci_dev *hdev = data->hdev; + int err; + int new_alts; + if (data->sco_num > 0) { + if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { + err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); + if (err < 0) { + clear_bit(BTUSB_ISOC_RUNNING, &data->flags); + mdelay(URB_CANCELING_DELAY_MS); + usb_kill_anchored_urbs(&data->isoc_anchor); + return; + } + + set_bit(BTUSB_DID_ISO_RESUME, &data->flags); + } +#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 7, 1) + if (hdev->voice_setting & 0x0020) { + static const int alts[3] = { 2, 4, 5 }; + new_alts = alts[data->sco_num - 1]; + } else{ + new_alts = data->sco_num; + } + if (data->isoc_altsetting != new_alts) { +#else + if (data->isoc_altsetting != 2) { + new_alts = 2; +#endif + + clear_bit(BTUSB_ISOC_RUNNING, &data->flags); + mdelay(URB_CANCELING_DELAY_MS); + usb_kill_anchored_urbs(&data->isoc_anchor); + + if (set_isoc_interface(hdev, new_alts) < 0) + return; + } + + if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { + if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) + clear_bit(BTUSB_ISOC_RUNNING, &data->flags); + else + btusb_submit_isoc_urb(hdev, GFP_KERNEL); + } + } else { + clear_bit(BTUSB_ISOC_RUNNING, &data->flags); + mdelay(URB_CANCELING_DELAY_MS); + usb_kill_anchored_urbs(&data->isoc_anchor); + + set_isoc_interface(hdev, 0); + if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) + usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); + } +} + +static void btusb_waker(struct work_struct *work) +{ + struct btusb_data *data = container_of(work, struct btusb_data, waker); + int err; + + RTKBT_DBG("%s: PM usage count %d", __func__, + atomic_read(&data->intf->pm_usage_cnt)); + + err = usb_autopm_get_interface(data->intf); + if (err < 0) + return; + + usb_autopm_put_interface(data->intf); +} + + +/* #ifdef CONFIG_HAS_EARLYSUSPEND */ +#if 0 +static void btusb_early_suspend(struct early_suspend *h) +{ + struct btusb_data *data; + firmware_info *fw_info; + patch_info *patch_entry; + + RTKBT_INFO("%s", __func__); + + data = container_of(h, struct btusb_data, early_suspend); + fw_info = data->fw_info; + patch_entry = fw_info->patch_entry; + + patch_entry->fw_len = load_firmware(fw_info, &patch_entry->fw_cache); + if (patch_entry->fw_len <= 0) { + /* We may encount failure in loading firmware, just give a warning */ + RTKBT_WARN("%s: Failed to load firmware", __func__); + } +} + +static void btusb_late_resume(struct early_suspend *h) +{ + struct btusb_data *data; + firmware_info *fw_info; + patch_info *patch_entry; + + RTKBT_INFO("%s", __func__); + + data = container_of(h, struct btusb_data, early_suspend); + fw_info = data->fw_info; + patch_entry = fw_info->patch_entry; + + /* Reclaim fw buffer when bt usb resumed */ + if (patch_entry->fw_len > 0) { + kfree(patch_entry->fw_cache); + patch_entry->fw_cache = NULL; + patch_entry->fw_len = 0; + } +} +#else +int bt_pm_notify(struct notifier_block *notifier, ulong pm_event, void *unused) +{ + struct btusb_data *data; + firmware_info *fw_info; + patch_info *patch_entry; + struct usb_device *udev; + + RTKBT_INFO("%s: pm event %ld", __func__, pm_event); + + data = container_of(notifier, struct btusb_data, pm_notifier); + fw_info = data->fw_info; + patch_entry = fw_info->patch_entry; + udev = fw_info->udev; + + switch (pm_event) { + case PM_SUSPEND_PREPARE: + case PM_HIBERNATION_PREPARE: +#if 0 + patch_entry->fw_len = load_firmware(fw_info, &patch_entry->fw_cache); + if (patch_entry->fw_len <= 0) { + /* We may encount failure in loading firmware, just give a warning */ + RTKBT_WARN("%s: Failed to load firmware", __func__); + } +#endif + if (!device_may_wakeup(&udev->dev)) { +#if (CONFIG_RESET_RESUME || CONFIG_BLUEDROID) + RTKBT_INFO("%s:remote wakeup not supported, reset resume supported", __func__); +#else + fw_info->intf->needs_binding = 1; + RTKBT_INFO("%s:remote wakeup not supported, binding needed", __func__); +#endif + } + break; + + case PM_POST_SUSPEND: + case PM_POST_HIBERNATION: + case PM_POST_RESTORE: +#if 0 + /* Reclaim fw buffer when bt usb resumed */ + if (patch_entry->fw_len > 0) { + kfree(patch_entry->fw_cache); + patch_entry->fw_cache = NULL; + patch_entry->fw_len = 0; + } +#endif + +#if BTUSB_RPM + usb_disable_autosuspend(udev); + usb_enable_autosuspend(udev); + pm_runtime_set_autosuspend_delay(&(udev->dev), 2000); +#endif + break; + + default: + break; + } + + return NOTIFY_DONE; +} + +int bt_reboot_notify(struct notifier_block *notifier, ulong pm_event, void *unused) +{ + struct btusb_data *data; + firmware_info *fw_info; + patch_info *patch_entry; + struct usb_device *udev; + + RTKBT_INFO("%s: pm event %ld", __func__, pm_event); + + data = container_of(notifier, struct btusb_data, reboot_notifier); + fw_info = data->fw_info; + patch_entry = fw_info->patch_entry; + udev = fw_info->udev; + + switch (pm_event) { + case SYS_DOWN: + RTKBT_DBG("%s:system down or restart", __func__); + break; + + case SYS_HALT: + case SYS_POWER_OFF: +#if SUSPNED_DW_FW + cancel_work_sync(&data->work); + + btusb_stop_traffic(data); + mdelay(URB_CANCELING_DELAY_MS); + usb_kill_anchored_urbs(&data->tx_anchor); + + + if (fw_info_4_suspend) { + download_suspend_patch(fw_info_4_suspend, 1); + } else { + RTKBT_ERR("%s: Failed to download suspend fw", __func__); + } +#endif + +#if SET_WAKEUP_DEVICE + set_wakeup_device_from_conf(fw_info_4_suspend); +#endif + RTKBT_DBG("%s:system halt or power off", __func__); + break; + + default: + break; + } + + return NOTIFY_DONE; +} + +#endif + +static int btusb_probe(struct usb_interface *intf, const struct usb_device_id *id) +{ + struct usb_device *udev = interface_to_usbdev(intf); + struct usb_endpoint_descriptor *ep_desc; + struct btusb_data *data; + struct hci_dev *hdev; + firmware_info *fw_info; + int i, err = 0; + + RTKBT_INFO("%s: usb_interface %p, bInterfaceNumber %d, idVendor 0x%04x, " + "idProduct 0x%04x", __func__, intf, + intf->cur_altsetting->desc.bInterfaceNumber, + id->idVendor, id->idProduct); + + /* interface numbers are hardcoded in the spec */ + if (intf->cur_altsetting->desc.bInterfaceNumber != 0) + return -ENODEV; + + RTKBT_DBG("%s: can wakeup = %x, may wakeup = %x", __func__, + device_can_wakeup(&udev->dev), device_may_wakeup(&udev->dev)); + + data = rtk_alloc(intf); + if (!data) + return -ENOMEM; + + for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { + ep_desc = &intf->cur_altsetting->endpoint[i].desc; + + if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { + data->intr_ep = ep_desc; + continue; + } + + if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { + data->bulk_tx_ep = ep_desc; + continue; + } + + if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { + data->bulk_rx_ep = ep_desc; + continue; + } + } + + if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) { + rtk_free(data); + return -ENODEV; + } + + data->cmdreq_type = USB_TYPE_CLASS; + + data->udev = udev; + data->intf = intf; + + dlfw_dis_state = 0; + spin_lock_init(&queue_lock); + spin_lock_init(&dlfw_lock); + spin_lock_init(&data->lock); + + INIT_WORK(&data->work, btusb_work); + INIT_WORK(&data->waker, btusb_waker); + spin_lock_init(&data->txlock); + + init_usb_anchor(&data->tx_anchor); + init_usb_anchor(&data->intr_anchor); + init_usb_anchor(&data->bulk_anchor); + init_usb_anchor(&data->isoc_anchor); + init_usb_anchor(&data->deferred); + + fw_info = firmware_info_init(intf); + if (fw_info) + data->fw_info = fw_info; + else { + RTKBT_WARN("%s: Failed to initialize fw info", __func__); + /* Skip download patch */ + goto end; + } + + RTKBT_INFO("%s: download begining...", __func__); + +#if CONFIG_BLUEDROID + mutex_lock(&btchr_mutex); +#endif + + + +#if CONFIG_BLUEDROID + mutex_unlock(&btchr_mutex); +#endif + + RTKBT_INFO("%s: download ending...", __func__); + + hdev = hci_alloc_dev(); + if (!hdev) { + rtk_free(data); + data = NULL; + return -ENOMEM; + } + + HDEV_BUS = HCI_USB; + + data->hdev = hdev; + + SET_HCIDEV_DEV(hdev, &intf->dev); + + hdev->open = btusb_open; + hdev->close = btusb_close; + hdev->flush = btusb_flush; + hdev->send = btusb_send_frame; + hdev->notify = btusb_notify; + +#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 4, 0) + hci_set_drvdata(hdev, data); +#else + hdev->driver_data = data; + hdev->destruct = btusb_destruct; + hdev->owner = THIS_MODULE; +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 1) + if (!reset_on_close) { + /* set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); */ + RTKBT_DBG("%s: Set HCI_QUIRK_RESET_ON_CLOSE", __func__); + } +#endif + + /* Interface numbers are hardcoded in the specification */ + data->isoc = usb_ifnum_to_if(data->udev, 1); + if (data->isoc) { + err = usb_driver_claim_interface(&btusb_driver, + data->isoc, data); + if (err < 0) { + hci_free_dev(hdev); + hdev = NULL; + rtk_free(data); + data = NULL; + return err; + } + } + + err = hci_register_dev(hdev); + if (err < 0) { + hci_free_dev(hdev); + hdev = NULL; + rtk_free(data); + data = NULL; + return err; + } + + usb_set_intfdata(intf, data); + +/* #ifdef CONFIG_HAS_EARLYSUSPEND */ +#if 0 + data->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN; + data->early_suspend.suspend = btusb_early_suspend; + data->early_suspend.resume = btusb_late_resume; + register_early_suspend(&data->early_suspend); +#else + data->pm_notifier.notifier_call = bt_pm_notify; + data->reboot_notifier.notifier_call = bt_reboot_notify; + register_pm_notifier(&data->pm_notifier); + register_reboot_notifier(&data->reboot_notifier); +#endif + +#if CONFIG_BLUEDROID + RTKBT_INFO("%s: Check bt reset flag %d", __func__, bt_reset); + /* Report hci hardware error after everthing is ready, + * especially hci register is completed. Or, btchr_poll + * will get null hci dev when hotplug in. + */ + if (bt_reset == 1) { + hci_hardware_error(); + bt_reset = 0; + } else + bt_reset = 0; /* Clear and reset it anyway */ +#endif + +end: + return 0; +} + +static void btusb_disconnect(struct usb_interface *intf) +{ + struct btusb_data *data; + struct hci_dev *hdev = NULL; + + wait_event_interruptible(bt_dlfw_wait, (check_set_dlfw_state_value(2) == 2)); + + RTKBT_INFO("%s: usb_interface %p, bInterfaceNumber %d", + __func__, intf, intf->cur_altsetting->desc.bInterfaceNumber); + + data = usb_get_intfdata(intf); + + if (intf->cur_altsetting->desc.bInterfaceNumber != 0) + return; + + if (data) + hdev = data->hdev; + else { + RTKBT_WARN("%s: Failed to get bt usb data[Null]", __func__); + return; + } + +/* #ifdef CONFIG_HAS_EARLYSUSPEND */ +#if 0 + unregister_early_suspend(&data->early_suspend); +#else + unregister_pm_notifier(&data->pm_notifier); + unregister_reboot_notifier(&data->reboot_notifier); +#endif + + firmware_info_destroy(intf); + +#if CONFIG_BLUEDROID + if (test_bit(HCI_RUNNING, &hdev->flags)) { + RTKBT_INFO("%s: Set BT reset flag", __func__); + bt_reset = 1; + } +#endif + + usb_set_intfdata(data->intf, NULL); + + if (data->isoc) + usb_set_intfdata(data->isoc, NULL); + + hci_unregister_dev(hdev); + + if (intf == data->isoc) + usb_driver_release_interface(&btusb_driver, data->intf); + else if (data->isoc) + usb_driver_release_interface(&btusb_driver, data->isoc); + +#if !CONFIG_BLUEDROID +#if LINUX_VERSION_CODE <= KERNEL_VERSION(3, 4, 0) + __hci_dev_put(hdev); +#endif +#endif + + hci_free_dev(hdev); + rtk_free(data); + data = NULL; + set_dlfw_state_value(0); +} + +#ifdef CONFIG_PM +static int btusb_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct btusb_data *data = usb_get_intfdata(intf); + firmware_info *fw_info = data->fw_info; + + RTKBT_INFO("%s: event 0x%x, suspend count %d", __func__, + message.event, data->suspend_count); + + if (intf->cur_altsetting->desc.bInterfaceNumber != 0) + return 0; + + if (!test_bit(HCI_RUNNING, &data->hdev->flags)) + set_bt_onoff(fw_info, 1); + + if (data->suspend_count++) + return 0; + + spin_lock_irq(&data->txlock); + if (!((message.event & PM_EVENT_AUTO) && data->tx_in_flight)) { + set_bit(BTUSB_SUSPENDING, &data->flags); + spin_unlock_irq(&data->txlock); + } else { + spin_unlock_irq(&data->txlock); + data->suspend_count--; + RTKBT_ERR("%s: Failed to enter suspend", __func__); + return -EBUSY; + } + + cancel_work_sync(&data->work); + + btusb_stop_traffic(data); + mdelay(URB_CANCELING_DELAY_MS); + usb_kill_anchored_urbs(&data->tx_anchor); + +#if SUSPNED_DW_FW + if (fw_info_4_suspend) { + download_suspend_patch(fw_info_4_suspend, 1); + } else { + RTKBT_ERR("%s: Failed to download suspend fw", __func__); + } +#endif + +#if SET_WAKEUP_DEVICE + set_wakeup_device_from_conf(fw_info_4_suspend); +#endif + + return 0; +} + +static void play_deferred(struct btusb_data *data) +{ + struct urb *urb; + int err; + + while ((urb = usb_get_from_anchor(&data->deferred))) { + usb_anchor_urb(urb, &data->tx_anchor); + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err < 0) { + RTKBT_ERR("%s: Failed to submit urb %p, err %d", + __func__, urb, err); + kfree(urb->setup_packet); + usb_unanchor_urb(urb); + } else { + usb_mark_last_busy(data->udev); + } + usb_free_urb(urb); + + data->tx_in_flight++; + } + mdelay(URB_CANCELING_DELAY_MS); + usb_scuttle_anchored_urbs(&data->deferred); +} + +static int btusb_resume(struct usb_interface *intf) +{ + struct btusb_data *data = usb_get_intfdata(intf); + struct hci_dev *hdev = data->hdev; + firmware_info *fw_info = data->fw_info; + int err = 0; + + RTKBT_INFO("%s: Suspend count %d", __func__, data->suspend_count); + + if (intf->cur_altsetting->desc.bInterfaceNumber != 0) + return 0; + + if (--data->suspend_count) + return 0; + + /*check_fw_version to check the status of the BT Controller after USB Resume*/ + err = check_fw_version(fw_info); + if (err != 0) { + RTKBT_INFO("%s: BT Controller Power OFF And Return hci_hardware_error:%d", __func__, err); + hci_hardware_error(); + } + + + if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { + err = btusb_submit_intr_urb(hdev, GFP_NOIO); + if (err < 0) { + clear_bit(BTUSB_INTR_RUNNING, &data->flags); + goto failed; + } + } + + if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { + err = btusb_submit_bulk_urb(hdev, GFP_NOIO); + if (err < 0) { + clear_bit(BTUSB_BULK_RUNNING, &data->flags); + goto failed; + } + + btusb_submit_bulk_urb(hdev, GFP_NOIO); + } + + if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { + if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) + clear_bit(BTUSB_ISOC_RUNNING, &data->flags); + else + btusb_submit_isoc_urb(hdev, GFP_NOIO); + } + + spin_lock_irq(&data->txlock); + play_deferred(data); + clear_bit(BTUSB_SUSPENDING, &data->flags); + spin_unlock_irq(&data->txlock); + schedule_work(&data->work); + + return 0; + +failed: + mdelay(URB_CANCELING_DELAY_MS); + usb_scuttle_anchored_urbs(&data->deferred); + spin_lock_irq(&data->txlock); + clear_bit(BTUSB_SUSPENDING, &data->flags); + spin_unlock_irq(&data->txlock); + + return err; +} +#endif + +static struct usb_driver btusb_driver = { + .name = "rtk_btusb", + .probe = btusb_probe, + .disconnect = btusb_disconnect, +#ifdef CONFIG_PM + .suspend = btusb_suspend, + .resume = btusb_resume, +#endif +#if CONFIG_RESET_RESUME +#ifdef CONFIG_PM + .reset_resume = btusb_resume, +#endif +#endif + .id_table = btusb_table, + .supports_autosuspend = 1, +#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 7, 1) + .disable_hub_initiated_lpm = 1, +#endif +}; + +static int __init btusb_init(void) +{ + int err; + + RTKBT_INFO("RTKBT_RELEASE_NAME: %s", RTKBT_RELEASE_NAME); + RTKBT_INFO("Realtek Bluetooth USB driver module init, version %s", VERSION); +#if CONFIG_BLUEDROID + err = btchr_init(); + if (err < 0) { + /* usb register will go on, even bt char register failed */ + RTKBT_ERR("Failed to register usb char device interfaces"); + } else + bt_char_dev_registered = 1; +#endif + err = usb_register(&btusb_driver); + if (err < 0) + RTKBT_ERR("Failed to register RTK bluetooth USB driver"); + return err; +} + +static void __exit btusb_exit(void) +{ + RTKBT_INFO("Realtek Bluetooth USB driver module exit"); +#if CONFIG_BLUEDROID + if (bt_char_dev_registered > 0) + btchr_exit(); +#endif + usb_deregister(&btusb_driver); +} + +module_init(btusb_init); +module_exit(btusb_exit); + + +module_param(mp_drv_mode, int, 0644); +MODULE_PARM_DESC(mp_drv_mode, "0: NORMAL; 1: MP MODE"); + + +MODULE_AUTHOR("Realtek Corporation"); +MODULE_DESCRIPTION("Realtek Bluetooth USB driver version"); +MODULE_VERSION(VERSION); +MODULE_LICENSE("GPL");