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mark83136 · 发表于 2015-7-4 22:09:33

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/*
*
*  Bluetooth driver for the Anycom BlueCard (LSE039/LSE041)
*
*  Copyright (C) 2001-2002  Marcel Holtmann <marcel@holtmann.org>
*
*
*  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;
*
*  Software distributed under the License is distributed on an "AS
*  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
*  implied. See the License for the specific language governing
*  rights and limitations under the License.
*
*  The initial developer of the original code is David A. Hinds
*  <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
*  are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
*
*/

#include <linux/module.h>

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/errno.h>
#include <linux/ptrace.h>
#include <linux/ioport.h>
#include <linux/spinlock.h>
#include <linux/moduleparam.h>
#include <linux/wait.h>

#include <linux/skbuff.h>
#include <linux/io.h>

#include <pcmcia/cistpl.h>
#include <pcmcia/ciscode.h>
#include <pcmcia/ds.h>
#include <pcmcia/cisreg.h>

#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>

/* ======================== Module parameters ======================== */

MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
MODULE_DESCRIPTION("Bluetooth driver for the Anycom BlueCard (LSE039/LSE041)");
MODULE_LICENSE("GPL");

/* ======================== Local structures ======================== */

typedef struct bluecard_info_t {
struct pcmcia_device *p_dev;

struct hci_dev *hdev;

spinlock_t lock;       /* For serializing operations */
struct timer_list timer; /* For LED control */

struct sk_buff_head txq;
unsigned long tx_state;

unsigned long rx_state;
unsigned long rx_count;
struct sk_buff *rx_skb;

unsigned char ctrl_reg;
unsigned long hw_state;       /* Status of the hardware and LED control */
} bluecard_info_t;

static int bluecard_config(struct pcmcia_device *link);
static void bluecard_release(struct pcmcia_device *link);

static void bluecard_detach(struct pcmcia_device *p_dev);

/* Default baud rate: 57600, 115200, 230400 or 460800 */
#define DEFAULT_BAUD_RATE  230400

/* Hardware states */
#define CARD_READY          1
#define CARD_HAS_PCCARD_ID    4
#define CARD_HAS_POWER_LED    5
#define CARD_HAS_ACTIVITY_LED  6

/* Transmit states  */
#define XMIT_SENDING       1
#define XMIT_WAKEUP       2
#define XMIT_BUFFER_NUMBER 5 /* unset = buffer one, set = buffer two */
#define XMIT_BUF_ONE_READY 6
#define XMIT_BUF_TWO_READY 7
#define XMIT_SENDING_READY 8

/* Receiver states */
#define RECV_WAIT_PACKET_TYPE 0
#define RECV_WAIT_EVENT_HEADER  1
#define RECV_WAIT_ACL_HEADER 2
#define RECV_WAIT_SCO_HEADER 3
#define RECV_WAIT_DATA       4

/* Special packet types */
#define PKT_BAUD_RATE_57600 0x80
#define PKT_BAUD_RATE_115200  0x81
#define PKT_BAUD_RATE_230400  0x82
#define PKT_BAUD_RATE_460800  0x83

/* These are the register offsets */
#define REG_COMMAND    0x20
#define REG_INTERRUPT 0x21
#define REG_CONTROL    0x22
#define REG_RX_CONTROL  0x24
#define REG_CARD_RESET  0x30
#define REG_LED_CTRL 0x30

/* REG_COMMAND */
#define REG_COMMAND_TX_BUF_ONE  0x01
#define REG_COMMAND_TX_BUF_TWO  0x02