911 lines
20 KiB
C
911 lines
20 KiB
C
/*
|
|
*
|
|
* 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 ======================== */
|
|
|
|
|
|
struct bluecard_info {
|
|
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 */
|
|
};
|
|
|
|
|
|
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_ACTIVITY 2
|
|
#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
|
|
#define REG_COMMAND_RX_BUF_ONE 0x04
|
|
#define REG_COMMAND_RX_BUF_TWO 0x08
|
|
#define REG_COMMAND_RX_WIN_ONE 0x00
|
|
#define REG_COMMAND_RX_WIN_TWO 0x10
|
|
|
|
/* REG_CONTROL */
|
|
#define REG_CONTROL_BAUD_RATE_57600 0x00
|
|
#define REG_CONTROL_BAUD_RATE_115200 0x01
|
|
#define REG_CONTROL_BAUD_RATE_230400 0x02
|
|
#define REG_CONTROL_BAUD_RATE_460800 0x03
|
|
#define REG_CONTROL_RTS 0x04
|
|
#define REG_CONTROL_BT_ON 0x08
|
|
#define REG_CONTROL_BT_RESET 0x10
|
|
#define REG_CONTROL_BT_RES_PU 0x20
|
|
#define REG_CONTROL_INTERRUPT 0x40
|
|
#define REG_CONTROL_CARD_RESET 0x80
|
|
|
|
/* REG_RX_CONTROL */
|
|
#define RTS_LEVEL_SHIFT_BITS 0x02
|
|
|
|
|
|
|
|
/* ======================== LED handling routines ======================== */
|
|
|
|
|
|
static void bluecard_activity_led_timeout(struct timer_list *t)
|
|
{
|
|
struct bluecard_info *info = from_timer(info, t, timer);
|
|
unsigned int iobase = info->p_dev->resource[0]->start;
|
|
|
|
if (test_bit(CARD_ACTIVITY, &(info->hw_state))) {
|
|
/* leave LED in inactive state for HZ/10 for blink effect */
|
|
clear_bit(CARD_ACTIVITY, &(info->hw_state));
|
|
mod_timer(&(info->timer), jiffies + HZ / 10);
|
|
}
|
|
|
|
/* Disable activity LED, enable power LED */
|
|
outb(0x08 | 0x20, iobase + 0x30);
|
|
}
|
|
|
|
|
|
static void bluecard_enable_activity_led(struct bluecard_info *info)
|
|
{
|
|
unsigned int iobase = info->p_dev->resource[0]->start;
|
|
|
|
/* don't disturb running blink timer */
|
|
if (timer_pending(&(info->timer)))
|
|
return;
|
|
|
|
set_bit(CARD_ACTIVITY, &(info->hw_state));
|
|
|
|
if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) {
|
|
/* Enable activity LED, keep power LED enabled */
|
|
outb(0x18 | 0x60, iobase + 0x30);
|
|
} else {
|
|
/* Disable power LED */
|
|
outb(0x00, iobase + 0x30);
|
|
}
|
|
|
|
/* Stop the LED after HZ/10 */
|
|
mod_timer(&(info->timer), jiffies + HZ / 10);
|
|
}
|
|
|
|
|
|
|
|
/* ======================== Interrupt handling ======================== */
|
|
|
|
|
|
static int bluecard_write(unsigned int iobase, unsigned int offset, __u8 *buf, int len)
|
|
{
|
|
int i, actual;
|
|
|
|
actual = (len > 15) ? 15 : len;
|
|
|
|
outb_p(actual, iobase + offset);
|
|
|
|
for (i = 0; i < actual; i++)
|
|
outb_p(buf[i], iobase + offset + i + 1);
|
|
|
|
return actual;
|
|
}
|
|
|
|
|
|
static void bluecard_write_wakeup(struct bluecard_info *info)
|
|
{
|
|
if (!info) {
|
|
BT_ERR("Unknown device");
|
|
return;
|
|
}
|
|
|
|
if (!test_bit(XMIT_SENDING_READY, &(info->tx_state)))
|
|
return;
|
|
|
|
if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) {
|
|
set_bit(XMIT_WAKEUP, &(info->tx_state));
|
|
return;
|
|
}
|
|
|
|
do {
|
|
unsigned int iobase = info->p_dev->resource[0]->start;
|
|
unsigned int offset;
|
|
unsigned char command;
|
|
unsigned long ready_bit;
|
|
register struct sk_buff *skb;
|
|
int len;
|
|
|
|
clear_bit(XMIT_WAKEUP, &(info->tx_state));
|
|
|
|
if (!pcmcia_dev_present(info->p_dev))
|
|
return;
|
|
|
|
if (test_bit(XMIT_BUFFER_NUMBER, &(info->tx_state))) {
|
|
if (!test_bit(XMIT_BUF_TWO_READY, &(info->tx_state)))
|
|
break;
|
|
offset = 0x10;
|
|
command = REG_COMMAND_TX_BUF_TWO;
|
|
ready_bit = XMIT_BUF_TWO_READY;
|
|
} else {
|
|
if (!test_bit(XMIT_BUF_ONE_READY, &(info->tx_state)))
|
|
break;
|
|
offset = 0x00;
|
|
command = REG_COMMAND_TX_BUF_ONE;
|
|
ready_bit = XMIT_BUF_ONE_READY;
|
|
}
|
|
|
|
skb = skb_dequeue(&(info->txq));
|
|
if (!skb)
|
|
break;
|
|
|
|
if (hci_skb_pkt_type(skb) & 0x80) {
|
|
/* Disable RTS */
|
|
info->ctrl_reg |= REG_CONTROL_RTS;
|
|
outb(info->ctrl_reg, iobase + REG_CONTROL);
|
|
}
|
|
|
|
/* Activate LED */
|
|
bluecard_enable_activity_led(info);
|
|
|
|
/* Send frame */
|
|
len = bluecard_write(iobase, offset, skb->data, skb->len);
|
|
|
|
/* Tell the FPGA to send the data */
|
|
outb_p(command, iobase + REG_COMMAND);
|
|
|
|
/* Mark the buffer as dirty */
|
|
clear_bit(ready_bit, &(info->tx_state));
|
|
|
|
if (hci_skb_pkt_type(skb) & 0x80) {
|
|
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq);
|
|
DEFINE_WAIT(wait);
|
|
|
|
unsigned char baud_reg;
|
|
|
|
switch (hci_skb_pkt_type(skb)) {
|
|
case PKT_BAUD_RATE_460800:
|
|
baud_reg = REG_CONTROL_BAUD_RATE_460800;
|
|
break;
|
|
case PKT_BAUD_RATE_230400:
|
|
baud_reg = REG_CONTROL_BAUD_RATE_230400;
|
|
break;
|
|
case PKT_BAUD_RATE_115200:
|
|
baud_reg = REG_CONTROL_BAUD_RATE_115200;
|
|
break;
|
|
case PKT_BAUD_RATE_57600:
|
|
/* Fall through... */
|
|
default:
|
|
baud_reg = REG_CONTROL_BAUD_RATE_57600;
|
|
break;
|
|
}
|
|
|
|
/* Wait until the command reaches the baseband */
|
|
mdelay(100);
|
|
|
|
/* Set baud on baseband */
|
|
info->ctrl_reg &= ~0x03;
|
|
info->ctrl_reg |= baud_reg;
|
|
outb(info->ctrl_reg, iobase + REG_CONTROL);
|
|
|
|
/* Enable RTS */
|
|
info->ctrl_reg &= ~REG_CONTROL_RTS;
|
|
outb(info->ctrl_reg, iobase + REG_CONTROL);
|
|
|
|
/* Wait before the next HCI packet can be send */
|
|
mdelay(1000);
|
|
}
|
|
|
|
if (len == skb->len) {
|
|
kfree_skb(skb);
|
|
} else {
|
|
skb_pull(skb, len);
|
|
skb_queue_head(&(info->txq), skb);
|
|
}
|
|
|
|
info->hdev->stat.byte_tx += len;
|
|
|
|
/* Change buffer */
|
|
change_bit(XMIT_BUFFER_NUMBER, &(info->tx_state));
|
|
|
|
} while (test_bit(XMIT_WAKEUP, &(info->tx_state)));
|
|
|
|
clear_bit(XMIT_SENDING, &(info->tx_state));
|
|
}
|
|
|
|
|
|
static int bluecard_read(unsigned int iobase, unsigned int offset, __u8 *buf, int size)
|
|
{
|
|
int i, n, len;
|
|
|
|
outb(REG_COMMAND_RX_WIN_ONE, iobase + REG_COMMAND);
|
|
|
|
len = inb(iobase + offset);
|
|
n = 0;
|
|
i = 1;
|
|
|
|
while (n < len) {
|
|
|
|
if (i == 16) {
|
|
outb(REG_COMMAND_RX_WIN_TWO, iobase + REG_COMMAND);
|
|
i = 0;
|
|
}
|
|
|
|
buf[n] = inb(iobase + offset + i);
|
|
|
|
n++;
|
|
i++;
|
|
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
|
|
static void bluecard_receive(struct bluecard_info *info,
|
|
unsigned int offset)
|
|
{
|
|
unsigned int iobase;
|
|
unsigned char buf[31];
|
|
int i, len;
|
|
|
|
if (!info) {
|
|
BT_ERR("Unknown device");
|
|
return;
|
|
}
|
|
|
|
iobase = info->p_dev->resource[0]->start;
|
|
|
|
if (test_bit(XMIT_SENDING_READY, &(info->tx_state)))
|
|
bluecard_enable_activity_led(info);
|
|
|
|
len = bluecard_read(iobase, offset, buf, sizeof(buf));
|
|
|
|
for (i = 0; i < len; i++) {
|
|
|
|
/* Allocate packet */
|
|
if (!info->rx_skb) {
|
|
info->rx_state = RECV_WAIT_PACKET_TYPE;
|
|
info->rx_count = 0;
|
|
info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
|
|
if (!info->rx_skb) {
|
|
BT_ERR("Can't allocate mem for new packet");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
|
|
|
|
hci_skb_pkt_type(info->rx_skb) = buf[i];
|
|
|
|
switch (hci_skb_pkt_type(info->rx_skb)) {
|
|
|
|
case 0x00:
|
|
/* init packet */
|
|
if (offset != 0x00) {
|
|
set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
|
|
set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
|
|
set_bit(XMIT_SENDING_READY, &(info->tx_state));
|
|
bluecard_write_wakeup(info);
|
|
}
|
|
|
|
kfree_skb(info->rx_skb);
|
|
info->rx_skb = NULL;
|
|
break;
|
|
|
|
case HCI_EVENT_PKT:
|
|
info->rx_state = RECV_WAIT_EVENT_HEADER;
|
|
info->rx_count = HCI_EVENT_HDR_SIZE;
|
|
break;
|
|
|
|
case HCI_ACLDATA_PKT:
|
|
info->rx_state = RECV_WAIT_ACL_HEADER;
|
|
info->rx_count = HCI_ACL_HDR_SIZE;
|
|
break;
|
|
|
|
case HCI_SCODATA_PKT:
|
|
info->rx_state = RECV_WAIT_SCO_HEADER;
|
|
info->rx_count = HCI_SCO_HDR_SIZE;
|
|
break;
|
|
|
|
default:
|
|
/* unknown packet */
|
|
BT_ERR("Unknown HCI packet with type 0x%02x received",
|
|
hci_skb_pkt_type(info->rx_skb));
|
|
info->hdev->stat.err_rx++;
|
|
|
|
kfree_skb(info->rx_skb);
|
|
info->rx_skb = NULL;
|
|
break;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
skb_put_u8(info->rx_skb, buf[i]);
|
|
info->rx_count--;
|
|
|
|
if (info->rx_count == 0) {
|
|
|
|
int dlen;
|
|
struct hci_event_hdr *eh;
|
|
struct hci_acl_hdr *ah;
|
|
struct hci_sco_hdr *sh;
|
|
|
|
switch (info->rx_state) {
|
|
|
|
case RECV_WAIT_EVENT_HEADER:
|
|
eh = hci_event_hdr(info->rx_skb);
|
|
info->rx_state = RECV_WAIT_DATA;
|
|
info->rx_count = eh->plen;
|
|
break;
|
|
|
|
case RECV_WAIT_ACL_HEADER:
|
|
ah = hci_acl_hdr(info->rx_skb);
|
|
dlen = __le16_to_cpu(ah->dlen);
|
|
info->rx_state = RECV_WAIT_DATA;
|
|
info->rx_count = dlen;
|
|
break;
|
|
|
|
case RECV_WAIT_SCO_HEADER:
|
|
sh = hci_sco_hdr(info->rx_skb);
|
|
info->rx_state = RECV_WAIT_DATA;
|
|
info->rx_count = sh->dlen;
|
|
break;
|
|
|
|
case RECV_WAIT_DATA:
|
|
hci_recv_frame(info->hdev, info->rx_skb);
|
|
info->rx_skb = NULL;
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
info->hdev->stat.byte_rx += len;
|
|
}
|
|
|
|
|
|
static irqreturn_t bluecard_interrupt(int irq, void *dev_inst)
|
|
{
|
|
struct bluecard_info *info = dev_inst;
|
|
unsigned int iobase;
|
|
unsigned char reg;
|
|
|
|
if (!info || !info->hdev)
|
|
/* our irq handler is shared */
|
|
return IRQ_NONE;
|
|
|
|
if (!test_bit(CARD_READY, &(info->hw_state)))
|
|
return IRQ_HANDLED;
|
|
|
|
iobase = info->p_dev->resource[0]->start;
|
|
|
|
spin_lock(&(info->lock));
|
|
|
|
/* Disable interrupt */
|
|
info->ctrl_reg &= ~REG_CONTROL_INTERRUPT;
|
|
outb(info->ctrl_reg, iobase + REG_CONTROL);
|
|
|
|
reg = inb(iobase + REG_INTERRUPT);
|
|
|
|
if ((reg != 0x00) && (reg != 0xff)) {
|
|
|
|
if (reg & 0x04) {
|
|
bluecard_receive(info, 0x00);
|
|
outb(0x04, iobase + REG_INTERRUPT);
|
|
outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND);
|
|
}
|
|
|
|
if (reg & 0x08) {
|
|
bluecard_receive(info, 0x10);
|
|
outb(0x08, iobase + REG_INTERRUPT);
|
|
outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND);
|
|
}
|
|
|
|
if (reg & 0x01) {
|
|
set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
|
|
outb(0x01, iobase + REG_INTERRUPT);
|
|
bluecard_write_wakeup(info);
|
|
}
|
|
|
|
if (reg & 0x02) {
|
|
set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
|
|
outb(0x02, iobase + REG_INTERRUPT);
|
|
bluecard_write_wakeup(info);
|
|
}
|
|
|
|
}
|
|
|
|
/* Enable interrupt */
|
|
info->ctrl_reg |= REG_CONTROL_INTERRUPT;
|
|
outb(info->ctrl_reg, iobase + REG_CONTROL);
|
|
|
|
spin_unlock(&(info->lock));
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
|
|
|
|
/* ======================== Device specific HCI commands ======================== */
|
|
|
|
|
|
static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud)
|
|
{
|
|
struct bluecard_info *info = hci_get_drvdata(hdev);
|
|
struct sk_buff *skb;
|
|
|
|
/* Ericsson baud rate command */
|
|
unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 };
|
|
|
|
skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
|
|
if (!skb) {
|
|
BT_ERR("Can't allocate mem for new packet");
|
|
return -1;
|
|
}
|
|
|
|
switch (baud) {
|
|
case 460800:
|
|
cmd[4] = 0x00;
|
|
hci_skb_pkt_type(skb) = PKT_BAUD_RATE_460800;
|
|
break;
|
|
case 230400:
|
|
cmd[4] = 0x01;
|
|
hci_skb_pkt_type(skb) = PKT_BAUD_RATE_230400;
|
|
break;
|
|
case 115200:
|
|
cmd[4] = 0x02;
|
|
hci_skb_pkt_type(skb) = PKT_BAUD_RATE_115200;
|
|
break;
|
|
case 57600:
|
|
/* Fall through... */
|
|
default:
|
|
cmd[4] = 0x03;
|
|
hci_skb_pkt_type(skb) = PKT_BAUD_RATE_57600;
|
|
break;
|
|
}
|
|
|
|
skb_put_data(skb, cmd, sizeof(cmd));
|
|
|
|
skb_queue_tail(&(info->txq), skb);
|
|
|
|
bluecard_write_wakeup(info);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/* ======================== HCI interface ======================== */
|
|
|
|
|
|
static int bluecard_hci_flush(struct hci_dev *hdev)
|
|
{
|
|
struct bluecard_info *info = hci_get_drvdata(hdev);
|
|
|
|
/* Drop TX queue */
|
|
skb_queue_purge(&(info->txq));
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int bluecard_hci_open(struct hci_dev *hdev)
|
|
{
|
|
struct bluecard_info *info = hci_get_drvdata(hdev);
|
|
unsigned int iobase = info->p_dev->resource[0]->start;
|
|
|
|
if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
|
|
bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE);
|
|
|
|
/* Enable power LED */
|
|
outb(0x08 | 0x20, iobase + 0x30);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int bluecard_hci_close(struct hci_dev *hdev)
|
|
{
|
|
struct bluecard_info *info = hci_get_drvdata(hdev);
|
|
unsigned int iobase = info->p_dev->resource[0]->start;
|
|
|
|
bluecard_hci_flush(hdev);
|
|
|
|
/* Stop LED timer */
|
|
del_timer_sync(&(info->timer));
|
|
|
|
/* Disable power LED */
|
|
outb(0x00, iobase + 0x30);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int bluecard_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct bluecard_info *info = hci_get_drvdata(hdev);
|
|
|
|
switch (hci_skb_pkt_type(skb)) {
|
|
case HCI_COMMAND_PKT:
|
|
hdev->stat.cmd_tx++;
|
|
break;
|
|
case HCI_ACLDATA_PKT:
|
|
hdev->stat.acl_tx++;
|
|
break;
|
|
case HCI_SCODATA_PKT:
|
|
hdev->stat.sco_tx++;
|
|
break;
|
|
}
|
|
|
|
/* Prepend skb with frame type */
|
|
memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1);
|
|
skb_queue_tail(&(info->txq), skb);
|
|
|
|
bluecard_write_wakeup(info);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/* ======================== Card services HCI interaction ======================== */
|
|
|
|
|
|
static int bluecard_open(struct bluecard_info *info)
|
|
{
|
|
unsigned int iobase = info->p_dev->resource[0]->start;
|
|
struct hci_dev *hdev;
|
|
unsigned char id;
|
|
|
|
spin_lock_init(&(info->lock));
|
|
|
|
timer_setup(&info->timer, bluecard_activity_led_timeout, 0);
|
|
|
|
skb_queue_head_init(&(info->txq));
|
|
|
|
info->rx_state = RECV_WAIT_PACKET_TYPE;
|
|
info->rx_count = 0;
|
|
info->rx_skb = NULL;
|
|
|
|
/* Initialize HCI device */
|
|
hdev = hci_alloc_dev();
|
|
if (!hdev) {
|
|
BT_ERR("Can't allocate HCI device");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
info->hdev = hdev;
|
|
|
|
hdev->bus = HCI_PCCARD;
|
|
hci_set_drvdata(hdev, info);
|
|
SET_HCIDEV_DEV(hdev, &info->p_dev->dev);
|
|
|
|
hdev->open = bluecard_hci_open;
|
|
hdev->close = bluecard_hci_close;
|
|
hdev->flush = bluecard_hci_flush;
|
|
hdev->send = bluecard_hci_send_frame;
|
|
|
|
id = inb(iobase + 0x30);
|
|
|
|
if ((id & 0x0f) == 0x02)
|
|
set_bit(CARD_HAS_PCCARD_ID, &(info->hw_state));
|
|
|
|
if (id & 0x10)
|
|
set_bit(CARD_HAS_POWER_LED, &(info->hw_state));
|
|
|
|
if (id & 0x20)
|
|
set_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state));
|
|
|
|
/* Reset card */
|
|
info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET;
|
|
outb(info->ctrl_reg, iobase + REG_CONTROL);
|
|
|
|
/* Turn FPGA off */
|
|
outb(0x80, iobase + 0x30);
|
|
|
|
/* Wait some time */
|
|
msleep(10);
|
|
|
|
/* Turn FPGA on */
|
|
outb(0x00, iobase + 0x30);
|
|
|
|
/* Activate card */
|
|
info->ctrl_reg = REG_CONTROL_BT_ON | REG_CONTROL_BT_RES_PU;
|
|
outb(info->ctrl_reg, iobase + REG_CONTROL);
|
|
|
|
/* Enable interrupt */
|
|
outb(0xff, iobase + REG_INTERRUPT);
|
|
info->ctrl_reg |= REG_CONTROL_INTERRUPT;
|
|
outb(info->ctrl_reg, iobase + REG_CONTROL);
|
|
|
|
if ((id & 0x0f) == 0x03) {
|
|
/* Disable RTS */
|
|
info->ctrl_reg |= REG_CONTROL_RTS;
|
|
outb(info->ctrl_reg, iobase + REG_CONTROL);
|
|
|
|
/* Set baud rate */
|
|
info->ctrl_reg |= 0x03;
|
|
outb(info->ctrl_reg, iobase + REG_CONTROL);
|
|
|
|
/* Enable RTS */
|
|
info->ctrl_reg &= ~REG_CONTROL_RTS;
|
|
outb(info->ctrl_reg, iobase + REG_CONTROL);
|
|
|
|
set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
|
|
set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
|
|
set_bit(XMIT_SENDING_READY, &(info->tx_state));
|
|
}
|
|
|
|
/* Start the RX buffers */
|
|
outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND);
|
|
outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND);
|
|
|
|
/* Signal that the hardware is ready */
|
|
set_bit(CARD_READY, &(info->hw_state));
|
|
|
|
/* Drop TX queue */
|
|
skb_queue_purge(&(info->txq));
|
|
|
|
/* Control the point at which RTS is enabled */
|
|
outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL);
|
|
|
|
/* Timeout before it is safe to send the first HCI packet */
|
|
msleep(1250);
|
|
|
|
/* Register HCI device */
|
|
if (hci_register_dev(hdev) < 0) {
|
|
BT_ERR("Can't register HCI device");
|
|
info->hdev = NULL;
|
|
hci_free_dev(hdev);
|
|
return -ENODEV;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int bluecard_close(struct bluecard_info *info)
|
|
{
|
|
unsigned int iobase = info->p_dev->resource[0]->start;
|
|
struct hci_dev *hdev = info->hdev;
|
|
|
|
if (!hdev)
|
|
return -ENODEV;
|
|
|
|
bluecard_hci_close(hdev);
|
|
|
|
clear_bit(CARD_READY, &(info->hw_state));
|
|
|
|
/* Reset card */
|
|
info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET;
|
|
outb(info->ctrl_reg, iobase + REG_CONTROL);
|
|
|
|
/* Turn FPGA off */
|
|
outb(0x80, iobase + 0x30);
|
|
|
|
hci_unregister_dev(hdev);
|
|
hci_free_dev(hdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bluecard_probe(struct pcmcia_device *link)
|
|
{
|
|
struct bluecard_info *info;
|
|
|
|
/* Create new info device */
|
|
info = devm_kzalloc(&link->dev, sizeof(*info), GFP_KERNEL);
|
|
if (!info)
|
|
return -ENOMEM;
|
|
|
|
info->p_dev = link;
|
|
link->priv = info;
|
|
|
|
link->config_flags |= CONF_ENABLE_IRQ;
|
|
|
|
return bluecard_config(link);
|
|
}
|
|
|
|
|
|
static void bluecard_detach(struct pcmcia_device *link)
|
|
{
|
|
bluecard_release(link);
|
|
}
|
|
|
|
|
|
static int bluecard_config(struct pcmcia_device *link)
|
|
{
|
|
struct bluecard_info *info = link->priv;
|
|
int i, n;
|
|
|
|
link->config_index = 0x20;
|
|
|
|
link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
|
|
link->resource[0]->end = 64;
|
|
link->io_lines = 6;
|
|
|
|
for (n = 0; n < 0x400; n += 0x40) {
|
|
link->resource[0]->start = n ^ 0x300;
|
|
i = pcmcia_request_io(link);
|
|
if (i == 0)
|
|
break;
|
|
}
|
|
|
|
if (i != 0)
|
|
goto failed;
|
|
|
|
i = pcmcia_request_irq(link, bluecard_interrupt);
|
|
if (i != 0)
|
|
goto failed;
|
|
|
|
i = pcmcia_enable_device(link);
|
|
if (i != 0)
|
|
goto failed;
|
|
|
|
if (bluecard_open(info) != 0)
|
|
goto failed;
|
|
|
|
return 0;
|
|
|
|
failed:
|
|
bluecard_release(link);
|
|
return -ENODEV;
|
|
}
|
|
|
|
|
|
static void bluecard_release(struct pcmcia_device *link)
|
|
{
|
|
struct bluecard_info *info = link->priv;
|
|
|
|
bluecard_close(info);
|
|
|
|
del_timer_sync(&(info->timer));
|
|
|
|
pcmcia_disable_device(link);
|
|
}
|
|
|
|
static const struct pcmcia_device_id bluecard_ids[] = {
|
|
PCMCIA_DEVICE_PROD_ID12("BlueCard", "LSE041", 0xbaf16fbf, 0x657cc15e),
|
|
PCMCIA_DEVICE_PROD_ID12("BTCFCARD", "LSE139", 0xe3987764, 0x2524b59c),
|
|
PCMCIA_DEVICE_PROD_ID12("WSS", "LSE039", 0x0a0736ec, 0x24e6dfab),
|
|
PCMCIA_DEVICE_NULL
|
|
};
|
|
MODULE_DEVICE_TABLE(pcmcia, bluecard_ids);
|
|
|
|
static struct pcmcia_driver bluecard_driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "bluecard_cs",
|
|
.probe = bluecard_probe,
|
|
.remove = bluecard_detach,
|
|
.id_table = bluecard_ids,
|
|
};
|
|
module_pcmcia_driver(bluecard_driver);
|