--- /dev/null
+/*
+ *
+ * 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_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(u_long arg)
+{
+ struct bluecard_info *info = (struct bluecard_info *)arg;
+ unsigned int iobase = info->p_dev->resource[0]->start;
+
+ if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
+ return;
+
+ if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) {
+ /* Disable activity LED */
+ outb(0x08 | 0x20, iobase + 0x30);
+ } else {
+ /* Disable power LED */
+ outb(0x00, iobase + 0x30);
+ }
+}
+
+
+static void bluecard_enable_activity_led(struct bluecard_info *info)
+{
+ unsigned int iobase = info->p_dev->resource[0]->start;
+
+ if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
+ return;
+
+ if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) {
+ /* Enable activity LED */
+ outb(0x10 | 0x40, iobase + 0x30);
+
+ /* Stop the LED after HZ/4 */
+ mod_timer(&(info->timer), jiffies + HZ / 4);
+ } else {
+ /* Enable power LED */
+ outb(0x08 | 0x20, iobase + 0x30);
+
+ /* Stop the LED after HZ/2 */
+ mod_timer(&(info->timer), jiffies + HZ / 2);
+ }
+}
+
+
+
+/* ======================== 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 (bt_cb(skb)->pkt_type & 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 (bt_cb(skb)->pkt_type & 0x80) {
+ DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq);
+ DEFINE_WAIT(wait);
+
+ unsigned char baud_reg;
+
+ switch (bt_cb(skb)->pkt_type) {
+ 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 */
+ prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE);
+ schedule_timeout(HZ/10);
+ finish_wait(&wq, &wait);
+
+ /* 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 */
+ prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE);
+ schedule_timeout(HZ);
+ finish_wait(&wq, &wait);
+ }
+
+ 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 == NULL) {
+ 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) {
+
+ bt_cb(info->rx_skb)->pkt_type = buf[i];
+
+ switch (bt_cb(info->rx_skb)->pkt_type) {
+
+ 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", bt_cb(info->rx_skb)->pkt_type);
+ info->hdev->stat.err_rx++;
+
+ kfree_skb(info->rx_skb);
+ info->rx_skb = NULL;
+ break;
+
+ }
+
+ } else {
+
+ *skb_put(info->rx_skb, 1) = 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;
+ bt_cb(skb)->pkt_type = PKT_BAUD_RATE_460800;
+ break;
+ case 230400:
+ cmd[4] = 0x01;
+ bt_cb(skb)->pkt_type = PKT_BAUD_RATE_230400;
+ break;
+ case 115200:
+ cmd[4] = 0x02;
+ bt_cb(skb)->pkt_type = PKT_BAUD_RATE_115200;
+ break;
+ case 57600:
+ /* Fall through... */
+ default:
+ cmd[4] = 0x03;
+ bt_cb(skb)->pkt_type = PKT_BAUD_RATE_57600;
+ break;
+ }
+
+ memcpy(skb_put(skb, sizeof(cmd)), 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);
+
+ if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
+ bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE);
+
+ if (test_and_set_bit(HCI_RUNNING, &(hdev->flags)))
+ return 0;
+
+ if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) {
+ unsigned int iobase = info->p_dev->resource[0]->start;
+
+ /* Enable 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);
+
+ if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
+ return 0;
+
+ bluecard_hci_flush(hdev);
+
+ if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) {
+ unsigned int iobase = info->p_dev->resource[0]->start;
+
+ /* Disable 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 (bt_cb(skb)->pkt_type) {
+ 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), &bt_cb(skb)->pkt_type, 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));
+
+ init_timer(&(info->timer));
+ info->timer.function = &bluecard_activity_led_timeout;
+ info->timer.data = (u_long)info;
+
+ 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);
Code Review / kvmfornfv.git / blobdiff