1 /* 2 * Marvell Bluetooth driver: global definitions & declarations 3 * 4 * Copyright (C) 2009, Marvell International Ltd. 5 * 6 * This software file (the "File") is distributed by Marvell International 7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991 8 * (the "License"). You may use, redistribute and/or modify this File in 9 * accordance with the terms and conditions of the License, a copy of which 10 * is available by writing to the Free Software Foundation, Inc., 11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the 12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. 13 * 14 * 15 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE 17 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about 18 * this warranty disclaimer. 19 * 20 */ 21 22 #include <linux/kthread.h> 23 #include <linux/bitops.h> 24 #include <linux/slab.h> 25 #include <net/bluetooth/bluetooth.h> 26 #include <linux/err.h> 27 #include <linux/gfp.h> 28 #include <linux/interrupt.h> 29 #include <linux/io.h> 30 #include <linux/of_platform.h> 31 #include <linux/platform_device.h> 32 #include <linux/pm_runtime.h> 33 #include <linux/of_irq.h> 34 35 #define BTM_HEADER_LEN 4 36 #define BTM_UPLD_SIZE 2312 37 38 /* Time to wait until Host Sleep state change in millisecond */ 39 #define WAIT_UNTIL_HS_STATE_CHANGED msecs_to_jiffies(5000) 40 /* Time to wait for command response in millisecond */ 41 #define WAIT_UNTIL_CMD_RESP msecs_to_jiffies(5000) 42 43 enum rdwr_status { 44 RDWR_STATUS_SUCCESS = 0, 45 RDWR_STATUS_FAILURE = 1, 46 RDWR_STATUS_DONE = 2 47 }; 48 49 #define FW_DUMP_MAX_NAME_LEN 8 50 #define FW_DUMP_HOST_READY 0xEE 51 #define FW_DUMP_DONE 0xFF 52 #define FW_DUMP_READ_DONE 0xFE 53 54 struct memory_type_mapping { 55 u8 mem_name[FW_DUMP_MAX_NAME_LEN]; 56 u8 *mem_ptr; 57 u32 mem_size; 58 u8 done_flag; 59 }; 60 61 struct btmrvl_thread { 62 struct task_struct *task; 63 wait_queue_head_t wait_q; 64 void *priv; 65 }; 66 67 struct btmrvl_device { 68 void *card; 69 struct hci_dev *hcidev; 70 71 u8 dev_type; 72 73 u8 tx_dnld_rdy; 74 75 u8 psmode; 76 u8 pscmd; 77 u8 hsmode; 78 u8 hscmd; 79 80 /* Low byte is gap, high byte is GPIO */ 81 u16 gpio_gap; 82 83 u8 hscfgcmd; 84 u8 sendcmdflag; 85 }; 86 87 struct btmrvl_adapter { 88 void *hw_regs_buf; 89 u8 *hw_regs; 90 u32 int_count; 91 struct sk_buff_head tx_queue; 92 u8 psmode; 93 u8 ps_state; 94 u8 hs_state; 95 u8 wakeup_tries; 96 wait_queue_head_t cmd_wait_q; 97 wait_queue_head_t event_hs_wait_q; 98 u8 cmd_complete; 99 bool is_suspended; 100 bool is_suspending; 101 }; 102 103 struct btmrvl_private { 104 struct btmrvl_device btmrvl_dev; 105 struct btmrvl_adapter *adapter; 106 struct btmrvl_thread main_thread; 107 int (*hw_host_to_card)(struct btmrvl_private *priv, 108 u8 *payload, u16 nb); 109 int (*hw_wakeup_firmware)(struct btmrvl_private *priv); 110 int (*hw_process_int_status)(struct btmrvl_private *priv); 111 spinlock_t driver_lock; /* spinlock used by driver */ 112 #ifdef CONFIG_DEBUG_FS 113 void *debugfs_data; 114 #endif 115 bool surprise_removed; 116 }; 117 118 #define MRVL_VENDOR_PKT 0xFE 119 120 /* Vendor specific Bluetooth commands */ 121 #define BT_CMD_PSCAN_WIN_REPORT_ENABLE 0xFC03 122 #define BT_CMD_ROUTE_SCO_TO_HOST 0xFC1D 123 #define BT_CMD_SET_BDADDR 0xFC22 124 #define BT_CMD_AUTO_SLEEP_MODE 0xFC23 125 #define BT_CMD_HOST_SLEEP_CONFIG 0xFC59 126 #define BT_CMD_HOST_SLEEP_ENABLE 0xFC5A 127 #define BT_CMD_MODULE_CFG_REQ 0xFC5B 128 #define BT_CMD_LOAD_CONFIG_DATA 0xFC61 129 130 /* Sub-commands: Module Bringup/Shutdown Request/Response */ 131 #define MODULE_BRINGUP_REQ 0xF1 132 #define MODULE_BROUGHT_UP 0x00 133 #define MODULE_ALREADY_UP 0x0C 134 135 #define MODULE_SHUTDOWN_REQ 0xF2 136 137 /* Vendor specific Bluetooth events */ 138 #define BT_EVENT_AUTO_SLEEP_MODE 0x23 139 #define BT_EVENT_HOST_SLEEP_CONFIG 0x59 140 #define BT_EVENT_HOST_SLEEP_ENABLE 0x5A 141 #define BT_EVENT_MODULE_CFG_REQ 0x5B 142 #define BT_EVENT_POWER_STATE 0x20 143 144 /* Bluetooth Power States */ 145 #define BT_PS_ENABLE 0x02 146 #define BT_PS_DISABLE 0x03 147 #define BT_PS_SLEEP 0x01 148 149 /* Host Sleep states */ 150 #define HS_ACTIVATED 0x01 151 #define HS_DEACTIVATED 0x00 152 153 /* Power Save modes */ 154 #define PS_SLEEP 0x01 155 #define PS_AWAKE 0x00 156 157 #define BT_CAL_HDR_LEN 4 158 #define BT_CAL_DATA_SIZE 28 159 160 struct btmrvl_event { 161 u8 ec; /* event counter */ 162 u8 length; 163 u8 data[4]; 164 } __packed; 165 166 /* Prototype of global function */ 167 168 int btmrvl_register_hdev(struct btmrvl_private *priv); 169 struct btmrvl_private *btmrvl_add_card(void *card); 170 int btmrvl_remove_card(struct btmrvl_private *priv); 171 172 void btmrvl_interrupt(struct btmrvl_private *priv); 173 174 bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb); 175 int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb); 176 177 int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, u8 subcmd); 178 int btmrvl_pscan_window_reporting(struct btmrvl_private *priv, u8 subcmd); 179 int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv); 180 int btmrvl_enable_ps(struct btmrvl_private *priv); 181 int btmrvl_prepare_command(struct btmrvl_private *priv); 182 int btmrvl_enable_hs(struct btmrvl_private *priv); 183 184 #ifdef CONFIG_DEBUG_FS 185 void btmrvl_debugfs_init(struct hci_dev *hdev); 186 void btmrvl_debugfs_remove(struct hci_dev *hdev); 187 #endif 188