drivers/staging/nokia_h4p/hci_h4p.h

   1 /*
   2  * This file is part of Nokia H4P bluetooth driver
   3  *
   4  * Copyright (C) 2005-2008 Nokia Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * version 2 as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  18  * 02110-1301 USA
  19  *
  20  */
  21
  22 #ifndef __DRIVERS_BLUETOOTH_HCI_H4P_H
  23 #define __DRIVERS_BLUETOOTH_HCI_H4P_H
  24
  25 #include <net/bluetooth/bluetooth.h>
  26 #include <net/bluetooth/hci_core.h>
  27 #include <net/bluetooth/hci.h>
  28
  29 #define UART_SYSC_OMAP_RESET    0x03
  30 #define UART_SYSS_RESETDONE     0x01
  31 #define UART_OMAP_SCR_EMPTY_THR 0x08
  32 #define UART_OMAP_SCR_WAKEUP    0x10
  33 #define UART_OMAP_SSR_WAKEUP    0x02
  34 #define UART_OMAP_SSR_TXFULL    0x01
  35
  36 #define UART_OMAP_SYSC_IDLEMODE         0x03
  37 #define UART_OMAP_SYSC_IDLEMASK         (3 << UART_OMAP_SYSC_IDLEMODE)
  38
  39 #define UART_OMAP_SYSC_FORCE_IDLE       (0 << UART_OMAP_SYSC_IDLEMODE)
  40 #define UART_OMAP_SYSC_NO_IDLE          (1 << UART_OMAP_SYSC_IDLEMODE)
  41 #define UART_OMAP_SYSC_SMART_IDLE       (2 << UART_OMAP_SYSC_IDLEMODE)
  42
  43 #define H4P_TRANSFER_MODE               1
  44 #define H4P_SCHED_TRANSFER_MODE         2
  45 #define H4P_ACTIVE_MODE                 3
  46
  47 struct hci_h4p_info {
  48         struct timer_list lazy_release;
  49         struct hci_dev *hdev;
  50         spinlock_t lock;
  51
  52         void __iomem *uart_base;
  53         unsigned long uart_phys_base;
  54         int irq;
  55         struct device *dev;
  56         u8 chip_type;
  57         u8 bt_wakeup_gpio;
  58         u8 host_wakeup_gpio;
  59         u8 reset_gpio;
  60         u8 reset_gpio_shared;
  61         u8 bt_sysclk;
  62         u8 man_id;
  63         u8 ver_id;
  64
  65         struct sk_buff_head fw_queue;
  66         struct sk_buff *alive_cmd_skb;
  67         struct completion init_completion;
  68         struct completion fw_completion;
  69         struct completion test_completion;
  70         int fw_error;
  71         int init_error;
  72
  73         struct sk_buff_head txq;
  74
  75         struct sk_buff *rx_skb;
  76         long rx_count;
  77         unsigned long rx_state;
  78         unsigned long garbage_bytes;
  79
  80         u8 bd_addr[6];
  81         struct sk_buff_head *fw_q;
  82
  83         int pm_enabled;
  84         int tx_enabled;
  85         int autorts;
  86         int rx_enabled;
  87         unsigned long pm_flags;
  88
  89         int tx_clocks_en;
  90         int rx_clocks_en;
  91         spinlock_t clocks_lock;
  92         struct clk *uart_iclk;
  93         struct clk *uart_fclk;
  94         atomic_t clk_users;
  95         u16 dll;
  96         u16 dlh;
  97         u16 ier;
  98         u16 mdr1;
  99         u16 efr;
 100 };
 101
 102 struct hci_h4p_radio_hdr {
 103         __u8 evt;
 104         __u8 dlen;
 105 } __packed;
 106
 107 struct hci_h4p_neg_hdr {
 108         __u8 dlen;
 109 } __packed;
 110 #define H4P_NEG_HDR_SIZE 1
 111
 112 #define H4P_NEG_REQ     0x00
 113 #define H4P_NEG_ACK     0x20
 114 #define H4P_NEG_NAK     0x40
 115
 116 #define H4P_PROTO_PKT   0x44
 117 #define H4P_PROTO_BYTE  0x4c
 118
 119 #define H4P_ID_CSR      0x02
 120 #define H4P_ID_BCM2048  0x04
 121 #define H4P_ID_TI1271   0x31
 122
 123 struct hci_h4p_neg_cmd {
 124         __u8    ack;
 125         __u16   baud;
 126         __u16   unused1;
 127         __u8    proto;
 128         __u16   sys_clk;
 129         __u16   unused2;
 130 } __packed;
 131
 132 struct hci_h4p_neg_evt {
 133         __u8    ack;
 134         __u16   baud;
 135         __u16   unused1;
 136         __u8    proto;
 137         __u16   sys_clk;
 138         __u16   unused2;
 139         __u8    man_id;
 140         __u8    ver_id;
 141 } __packed;
 142
 143 #define H4P_ALIVE_REQ   0x55
 144 #define H4P_ALIVE_RESP  0xcc
 145
 146 struct hci_h4p_alive_hdr {
 147         __u8    dlen;
 148 } __packed;
 149 #define H4P_ALIVE_HDR_SIZE 1
 150
 151 struct hci_h4p_alive_pkt {
 152         __u8    mid;
 153         __u8    unused;
 154 } __packed;
 155
 156 #define MAX_BAUD_RATE           921600
 157 #define BC4_MAX_BAUD_RATE       3692300
 158 #define UART_CLOCK              48000000
 159 #define BT_INIT_DIVIDER         320
 160 #define BT_BAUDRATE_DIVIDER     384000000
 161 #define BT_SYSCLK_DIV           1000
 162 #define INIT_SPEED              120000
 163
 164 #define H4_TYPE_SIZE            1
 165 #define H4_RADIO_HDR_SIZE       2
 166
 167 /* H4+ packet types */
 168 #define H4_CMD_PKT              0x01
 169 #define H4_ACL_PKT              0x02
 170 #define H4_SCO_PKT              0x03
 171 #define H4_EVT_PKT              0x04
 172 #define H4_NEG_PKT              0x06
 173 #define H4_ALIVE_PKT            0x07
 174 #define H4_RADIO_PKT            0x08
 175
 176 /* TX states */
 177 #define WAIT_FOR_PKT_TYPE       1
 178 #define WAIT_FOR_HEADER         2
 179 #define WAIT_FOR_DATA           3
 180
 181 struct hci_fw_event {
 182         struct hci_event_hdr hev;
 183         struct hci_ev_cmd_complete cmd;
 184         u8 status;
 185 } __packed;
 186
 187 int hci_h4p_send_alive_packet(struct hci_h4p_info *info);
 188
 189 void hci_h4p_bcm_parse_fw_event(struct hci_h4p_info *info,
 190                                 struct sk_buff *skb);
 191 int hci_h4p_bcm_send_fw(struct hci_h4p_info *info,
 192                         struct sk_buff_head *fw_queue);
 193
 194 void hci_h4p_bc4_parse_fw_event(struct hci_h4p_info *info,
 195                                 struct sk_buff *skb);
 196 int hci_h4p_bc4_send_fw(struct hci_h4p_info *info,
 197                         struct sk_buff_head *fw_queue);
 198
 199 void hci_h4p_ti1273_parse_fw_event(struct hci_h4p_info *info,
 200                                     struct sk_buff *skb);
 201 int hci_h4p_ti1273_send_fw(struct hci_h4p_info *info,
 202                             struct sk_buff_head *fw_queue);
 203
 204 int hci_h4p_read_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue);
 205 int hci_h4p_send_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue);
 206 void hci_h4p_parse_fw_event(struct hci_h4p_info *info, struct sk_buff *skb);
 207
 208 void hci_h4p_outb(struct hci_h4p_info *info, unsigned int offset, u8 val);
 209 u8 hci_h4p_inb(struct hci_h4p_info *info, unsigned int offset);
 210 void hci_h4p_set_rts(struct hci_h4p_info *info, int active);
 211 int hci_h4p_wait_for_cts(struct hci_h4p_info *info, int active, int timeout_ms);
 212 void __hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which);
 213 void hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which);
 214 void hci_h4p_change_speed(struct hci_h4p_info *info, unsigned long speed);
 215 int hci_h4p_reset_uart(struct hci_h4p_info *info);
 216 void hci_h4p_init_uart(struct hci_h4p_info *info);
 217 void hci_h4p_enable_tx(struct hci_h4p_info *info);
 218 void hci_h4p_store_regs(struct hci_h4p_info *info);
 219 void hci_h4p_restore_regs(struct hci_h4p_info *info);
 220 void hci_h4p_smart_idle(struct hci_h4p_info *info, bool enable);
 221
 222 #endif /* __DRIVERS_BLUETOOTH_HCI_H4P_H */