/*
* This file is part of Nokia H4P bluetooth driver
*
* Copyright (C) 2005-2008 Nokia Corporation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#ifndef __DRIVERS_BLUETOOTH_HCI_H4P_H
#define __DRIVERS_BLUETOOTH_HCI_H4P_H
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/hci.h>
#define UART_SYSC_OMAP_RESET 0x03
#define UART_SYSS_RESETDONE 0x01
#define UART_OMAP_SCR_EMPTY_THR 0x08
#define UART_OMAP_SCR_WAKEUP 0x10
#define UART_OMAP_SSR_WAKEUP 0x02
#define UART_OMAP_SSR_TXFULL 0x01
#define UART_OMAP_SYSC_IDLEMODE 0x03
#define UART_OMAP_SYSC_IDLEMASK (3 << UART_OMAP_SYSC_IDLEMODE)
#define UART_OMAP_SYSC_FORCE_IDLE (0 << UART_OMAP_SYSC_IDLEMODE)
#define UART_OMAP_SYSC_NO_IDLE (1 << UART_OMAP_SYSC_IDLEMODE)
#define UART_OMAP_SYSC_SMART_IDLE (2 << UART_OMAP_SYSC_IDLEMODE)
#define H4P_TRANSFER_MODE 1
#define H4P_SCHED_TRANSFER_MODE 2
#define H4P_ACTIVE_MODE 3
struct hci_h4p_info {
struct timer_list lazy_release;
struct hci_dev *hdev;
spinlock_t lock;
void __iomem *uart_base;
unsigned long uart_phys_base;
int irq;
struct device *dev;
u8 chip_type;
u8 bt_wakeup_gpio;
u8 host_wakeup_gpio;
u8 reset_gpio;
u8 reset_gpio_shared;
u8 bt_sysclk;
u8 man_id;
u8 ver_id;
struct sk_buff_head fw_queue;
struct sk_buff *alive_cmd_skb;
struct completion init_completion;
struct completion fw_completion;
struct completion test_completion;
int fw_error;
int init_error;
struct sk_buff_head txq;
struct sk_buff *rx_skb;
long rx_count;
unsigned long rx_state;
unsigned long garbage_bytes;
u8 bd_addr[6];
struct sk_buff_head *fw_q;
int pm_enabled;
int tx_enabled;
int autorts;
int rx_enabled;
unsigned long pm_flags;
int tx_clocks_en;
int rx_clocks_en;
spinlock_t clocks_lock;
struct clk *uart_iclk;
struct clk *uart_fclk;
atomic_t clk_users;
u16 dll;
u16 dlh;
u16 ier;
u16 mdr1;
u16 efr;
};
struct hci_h4p_radio_hdr {
__u8 evt;
__u8 dlen;
} __packed;
struct hci_h4p_neg_hdr {
__u8 dlen;
} __packed;
#define H4P_NEG_HDR_SIZE 1
#define H4P_NEG_REQ 0x00
#define H4P_NEG_ACK 0x20
#define H4P_NEG_NAK 0x40
#define H4P_PROTO_PKT 0x44
#define H4P_PROTO_BYTE 0x4c
#define H4P_ID_CSR 0x02
#define H4P_ID_BCM2048 0x04
#define H4P_ID_TI1271 0x31
struct hci_h4p_neg_cmd {
__u8 ack;
__u16 baud;
__u16 unused1;
__u8 proto;
__u16 sys_clk;
__u16 unused2;
} __packed;
struct hci_h4p_neg_evt {
__u8 ack;
__u16 baud;
__u16 unused1;
__u8 proto;
__u16 sys_clk;
__u16 unused2;
__u8 man_id;
__u8 ver_id;
} __packed;
#define H4P_ALIVE_REQ 0x55
#define H4P_ALIVE_RESP 0xcc
struct hci_h4p_alive_hdr {
__u8 dlen;
} __packed;
#define H4P_ALIVE_HDR_SIZE 1
struct hci_h4p_alive_pkt {
__u8 mid;
__u8 unused;
} __packed;
#define MAX_BAUD_RATE 921600
#define BC4_MAX_BAUD_RATE 3692300
#define UART_CLOCK 48000000
#define BT_INIT_DIVIDER 320
#define BT_BAUDRATE_DIVIDER 384000000
#define BT_SYSCLK_DIV 1000
#define INIT_SPEED 120000
#define H4_TYPE_SIZE 1
#define H4_RADIO_HDR_SIZE 2
/* H4+ packet types */
#define H4_CMD_PKT 0x01
#define H4_ACL_PKT 0x02
#define H4_SCO_PKT 0x03
#define H4_EVT_PKT 0x04
#define H4_NEG_PKT 0x06
#define H4_ALIVE_PKT 0x07
#define H4_RADIO_PKT 0x08
/* TX states */
#define WAIT_FOR_PKT_TYPE 1
#define WAIT_FOR_HEADER 2
#define WAIT_FOR_DATA 3
struct hci_fw_event {
struct hci_event_hdr hev;
struct hci_ev_cmd_complete cmd;
u8 status;
} __packed;
int hci_h4p_send_alive_packet(struct hci_h4p_info *info);
void hci_h4p_bcm_parse_fw_event(struct hci_h4p_info *info,
struct sk_buff *skb);
int hci_h4p_bcm_send_fw(struct hci_h4p_info *info,
struct sk_buff_head *fw_queue);
void hci_h4p_bc4_parse_fw_event(struct hci_h4p_info *info,
struct sk_buff *skb);
int hci_h4p_bc4_send_fw(struct hci_h4p_info *info,
struct sk_buff_head *fw_queue);
void hci_h4p_ti1273_parse_fw_event(struct hci_h4p_info *info,
struct sk_buff *skb);
int hci_h4p_ti1273_send_fw(struct hci_h4p_info *info,
struct sk_buff_head *fw_queue);
int hci_h4p_read_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue);
int hci_h4p_send_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue);
void hci_h4p_parse_fw_event(struct hci_h4p_info *info, struct sk_buff *skb);
void hci_h4p_outb(struct hci_h4p_info *info, unsigned int offset, u8 val);
u8 hci_h4p_inb(struct hci_h4p_info *info, unsigned int offset);
void hci_h4p_set_rts(struct hci_h4p_info *info, int active);
int hci_h4p_wait_for_cts(struct hci_h4p_info *info, int active, int timeout_ms);
void __hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which);
void hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which);
void hci_h4p_change_speed(struct hci_h4p_info *info, unsigned long speed);
int hci_h4p_reset_uart(struct hci_h4p_info *info);
void hci_h4p_init_uart(struct hci_h4p_info *info);
void hci_h4p_enable_tx(struct hci_h4p_info *info);
void hci_h4p_store_regs(struct hci_h4p_info *info);
void hci_h4p_restore_regs(struct hci_h4p_info *info);
void hci_h4p_smart_idle(struct hci_h4p_info *info, bool enable);
#endif /* __DRIVERS_BLUETOOTH_HCI_H4P_H */