patch-2.4.20 linux-2.4.20/drivers/bluetooth/bluecard_cs.c
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- Lines: 1114
- Date:
Thu Nov 28 15:53:12 2002
- Orig file:
linux-2.4.19/drivers/bluetooth/bluecard_cs.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -urN linux-2.4.19/drivers/bluetooth/bluecard_cs.c linux-2.4.20/drivers/bluetooth/bluecard_cs.c
@@ -0,0 +1,1113 @@
+/*
+ *
+ * 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/config.h>
+#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/timer.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/ioport.h>
+#include <linux/spinlock.h>
+#include <linux/skbuff.h>
+#include <asm/io.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.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 ======================== */
+
+
+/* Bit map of interrupts to choose from */
+static u_int irq_mask = 0x86bc;
+static int irq_list[4] = { -1 };
+
+MODULE_PARM(irq_mask, "i");
+MODULE_PARM(irq_list, "1-4i");
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("BlueZ driver for the Anycom BlueCard (LSE039/LSE041)");
+MODULE_LICENSE("GPL");
+
+
+
+/* ======================== Local structures ======================== */
+
+
+typedef struct bluecard_info_t {
+ dev_link_t link;
+ dev_node_t node;
+
+ 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;
+
+
+void bluecard_config(dev_link_t *link);
+void bluecard_release(u_long arg);
+int bluecard_event(event_t event, int priority, event_callback_args_t *args);
+
+static dev_info_t dev_info = "bluecard_cs";
+
+dev_link_t *bluecard_attach(void);
+void bluecard_detach(dev_link_t *);
+
+static dev_link_t *dev_list = NULL;
+
+
+/* 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 ======================== */
+
+
+void bluecard_activity_led_timeout(u_long arg)
+{
+ bluecard_info_t *info = (bluecard_info_t *)arg;
+ unsigned int iobase = info->link.io.BasePort1;
+
+ 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(bluecard_info_t *info)
+{
+ unsigned int iobase = info->link.io.BasePort1;
+
+ 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(bluecard_info_t *info)
+{
+ if (!info) {
+ printk(KERN_WARNING "bluecard_cs: Call of write_wakeup for unknown device.\n");
+ 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 {
+ register unsigned int iobase = info->link.io.BasePort1;
+ register unsigned int offset;
+ register unsigned char command;
+ register unsigned long ready_bit;
+ register struct sk_buff *skb;
+ register int len;
+
+ clear_bit(XMIT_WAKEUP, &(info->tx_state));
+
+ if (!(info->link.state & DEV_PRESENT))
+ 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;
+ }
+
+ if (!(skb = skb_dequeue(&(info->txq))))
+ break;
+
+ if (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 (skb->pkt_type & 0x80) {
+
+ wait_queue_head_t wait;
+ unsigned char baud_reg;
+
+ switch (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 */
+ init_waitqueue_head(&wait);
+ interruptible_sleep_on_timeout(&wait, HZ / 10);
+
+ /* 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 */
+ interruptible_sleep_on_timeout(&wait, HZ);
+
+ }
+
+ 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(bluecard_info_t *info, unsigned int offset)
+{
+ unsigned int iobase;
+ unsigned char buf[31];
+ int i, len;
+
+ if (!info) {
+ printk(KERN_WARNING "bluecard_cs: Call of receive for unknown device.\n");
+ return;
+ }
+
+ iobase = info->link.io.BasePort1;
+
+ 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;
+ if (!(info->rx_skb = bluez_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
+ printk(KERN_WARNING "bluecard_cs: Can't allocate mem for new packet.\n");
+ return;
+ }
+ }
+
+ if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
+
+ info->rx_skb->dev = (void *)&(info->hdev);
+ info->rx_skb->pkt_type = buf[i];
+
+ switch (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 */
+ printk(KERN_WARNING "bluecard_cs: Unknown HCI packet with type 0x%02x received.\n", 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;
+ hci_event_hdr *eh;
+ hci_acl_hdr *ah;
+ hci_sco_hdr *sh;
+
+ switch (info->rx_state) {
+
+ case RECV_WAIT_EVENT_HEADER:
+ eh = (hci_event_hdr *)(info->rx_skb->data);
+ info->rx_state = RECV_WAIT_DATA;
+ info->rx_count = eh->plen;
+ break;
+
+ case RECV_WAIT_ACL_HEADER:
+ ah = (hci_acl_hdr *)(info->rx_skb->data);
+ 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->data);
+ info->rx_state = RECV_WAIT_DATA;
+ info->rx_count = sh->dlen;
+ break;
+
+ case RECV_WAIT_DATA:
+ hci_recv_frame(info->rx_skb);
+ info->rx_skb = NULL;
+ break;
+
+ }
+
+ }
+
+ }
+
+
+ }
+
+ info->hdev.stat.byte_rx += len;
+}
+
+
+void bluecard_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
+{
+ bluecard_info_t *info = dev_inst;
+ unsigned int iobase;
+ unsigned char reg;
+
+ if (!info) {
+ printk(KERN_WARNING "bluecard_cs: Call of irq %d for unknown device.\n", irq);
+ return;
+ }
+
+ if (!test_bit(CARD_READY, &(info->hw_state)))
+ return;
+
+ iobase = info->link.io.BasePort1;
+
+ 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));
+}
+
+
+
+/* ======================== Device specific HCI commands ======================== */
+
+
+static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud)
+{
+ bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
+ struct sk_buff *skb;
+
+ /* Ericsson baud rate command */
+ unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 };
+
+ if (!(skb = bluez_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
+ printk(KERN_WARNING "bluecard_cs: Can't allocate mem for new packet.\n");
+ return -1;
+ }
+
+ switch (baud) {
+ case 460800:
+ cmd[4] = 0x00;
+ skb->pkt_type = PKT_BAUD_RATE_460800;
+ break;
+ case 230400:
+ cmd[4] = 0x01;
+ skb->pkt_type = PKT_BAUD_RATE_230400;
+ break;
+ case 115200:
+ cmd[4] = 0x02;
+ skb->pkt_type = PKT_BAUD_RATE_115200;
+ break;
+ case 57600:
+ /* Fall through... */
+ default:
+ cmd[4] = 0x03;
+ 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)
+{
+ bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
+
+ /* Drop TX queue */
+ skb_queue_purge(&(info->txq));
+
+ return 0;
+}
+
+
+static int bluecard_hci_open(struct hci_dev *hdev)
+{
+ bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
+ unsigned int iobase = info->link.io.BasePort1;
+
+ bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE);
+
+ if (test_and_set_bit(HCI_RUNNING, &(hdev->flags)))
+ return 0;
+
+ /* Enable LED */
+ outb(0x08 | 0x20, iobase + 0x30);
+
+ return 0;
+}
+
+
+static int bluecard_hci_close(struct hci_dev *hdev)
+{
+ bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
+ unsigned int iobase = info->link.io.BasePort1;
+
+ if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
+ return 0;
+
+ bluecard_hci_flush(hdev);
+
+ /* Disable LED */
+ outb(0x00, iobase + 0x30);
+
+ return 0;
+}
+
+
+static int bluecard_hci_send_frame(struct sk_buff *skb)
+{
+ bluecard_info_t *info;
+ struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
+
+ if (!hdev) {
+ printk(KERN_WARNING "bluecard_cs: Frame for unknown HCI device (hdev=NULL).");
+ return -ENODEV;
+ }
+
+ info = (bluecard_info_t *)(hdev->driver_data);
+
+ switch (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), &(skb->pkt_type), 1);
+ skb_queue_tail(&(info->txq), skb);
+
+ bluecard_write_wakeup(info);
+
+ return 0;
+}
+
+
+static void bluecard_hci_destruct(struct hci_dev *hdev)
+{
+}
+
+
+static int bluecard_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
+{
+ return -ENOIOCTLCMD;
+}
+
+
+
+/* ======================== Card services HCI interaction ======================== */
+
+
+int bluecard_open(bluecard_info_t *info)
+{
+ unsigned int iobase = info->link.io.BasePort1;
+ 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;
+
+ 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 */
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(HZ / 100);
+
+ /* 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);
+
+ /* 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 */
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout((HZ * 5) / 4); // or set it to 3/2
+
+
+ /* Initialize and register HCI device */
+
+ hdev = &(info->hdev);
+
+ hdev->type = HCI_PCCARD;
+ hdev->driver_data = info;
+
+ hdev->open = bluecard_hci_open;
+ hdev->close = bluecard_hci_close;
+ hdev->flush = bluecard_hci_flush;
+ hdev->send = bluecard_hci_send_frame;
+ hdev->destruct = bluecard_hci_destruct;
+ hdev->ioctl = bluecard_hci_ioctl;
+
+ if (hci_register_dev(hdev) < 0) {
+ printk(KERN_WARNING "bluecard_cs: Can't register HCI device %s.\n", hdev->name);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+
+int bluecard_close(bluecard_info_t *info)
+{
+ unsigned int iobase = info->link.io.BasePort1;
+ struct hci_dev *hdev = &(info->hdev);
+
+ 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);
+
+ if (hci_unregister_dev(hdev) < 0)
+ printk(KERN_WARNING "bluecard_cs: Can't unregister HCI device %s.\n", hdev->name);
+
+ return 0;
+}
+
+
+
+/* ======================== Card services ======================== */
+
+
+static void cs_error(client_handle_t handle, int func, int ret)
+{
+ error_info_t err = { func, ret };
+
+ CardServices(ReportError, handle, &err);
+}
+
+
+dev_link_t *bluecard_attach(void)
+{
+ bluecard_info_t *info;
+ client_reg_t client_reg;
+ dev_link_t *link;
+ int i, ret;
+
+ /* Create new info device */
+ info = kmalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return NULL;
+ memset(info, 0, sizeof(*info));
+
+ link = &info->link;
+ link->priv = info;
+
+ link->release.function = &bluecard_release;
+ link->release.data = (u_long)link;
+ link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+ link->io.NumPorts1 = 8;
+ link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+ link->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID;
+
+ if (irq_list[0] == -1)
+ link->irq.IRQInfo2 = irq_mask;
+ else
+ for (i = 0; i < 4; i++)
+ link->irq.IRQInfo2 |= 1 << irq_list[i];
+
+ link->irq.Handler = bluecard_interrupt;
+ link->irq.Instance = info;
+
+ link->conf.Attributes = CONF_ENABLE_IRQ;
+ link->conf.Vcc = 50;
+ link->conf.IntType = INT_MEMORY_AND_IO;
+
+ /* Register with Card Services */
+ link->next = dev_list;
+ dev_list = link;
+ client_reg.dev_info = &dev_info;
+ client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
+ client_reg.EventMask =
+ CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
+ CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
+ CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
+ client_reg.event_handler = &bluecard_event;
+ client_reg.Version = 0x0210;
+ client_reg.event_callback_args.client_data = link;
+
+ ret = CardServices(RegisterClient, &link->handle, &client_reg);
+ if (ret != CS_SUCCESS) {
+ cs_error(link->handle, RegisterClient, ret);
+ bluecard_detach(link);
+ return NULL;
+ }
+
+ return link;
+}
+
+
+void bluecard_detach(dev_link_t *link)
+{
+ bluecard_info_t *info = link->priv;
+ dev_link_t **linkp;
+ int ret;
+
+ /* Locate device structure */
+ for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+ if (*linkp == link)
+ break;
+
+ if (*linkp == NULL)
+ return;
+
+ del_timer(&link->release);
+ if (link->state & DEV_CONFIG)
+ bluecard_release((u_long)link);
+
+ if (link->handle) {
+ ret = CardServices(DeregisterClient, link->handle);
+ if (ret != CS_SUCCESS)
+ cs_error(link->handle, DeregisterClient, ret);
+ }
+
+ /* Unlink device structure, free bits */
+ *linkp = link->next;
+
+ kfree(info);
+}
+
+
+static int get_tuple(int fn, client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
+{
+ int i;
+
+ i = CardServices(fn, handle, tuple);
+ if (i != CS_SUCCESS)
+ return CS_NO_MORE_ITEMS;
+
+ i = CardServices(GetTupleData, handle, tuple);
+ if (i != CS_SUCCESS)
+ return i;
+
+ return CardServices(ParseTuple, handle, tuple, parse);
+}
+
+
+#define first_tuple(a, b, c) get_tuple(GetFirstTuple, a, b, c)
+#define next_tuple(a, b, c) get_tuple(GetNextTuple, a, b, c)
+
+void bluecard_config(dev_link_t *link)
+{
+ client_handle_t handle = link->handle;
+ bluecard_info_t *info = link->priv;
+ tuple_t tuple;
+ u_short buf[256];
+ cisparse_t parse;
+ config_info_t config;
+ int i, n, last_ret, last_fn;
+
+ tuple.TupleData = (cisdata_t *)buf;
+ tuple.TupleOffset = 0;
+ tuple.TupleDataMax = 255;
+ tuple.Attributes = 0;
+
+ /* Get configuration register information */
+ tuple.DesiredTuple = CISTPL_CONFIG;
+ last_ret = first_tuple(handle, &tuple, &parse);
+ if (last_ret != CS_SUCCESS) {
+ last_fn = ParseTuple;
+ goto cs_failed;
+ }
+ link->conf.ConfigBase = parse.config.base;
+ link->conf.Present = parse.config.rmask[0];
+
+ /* Configure card */
+ link->state |= DEV_CONFIG;
+ i = CardServices(GetConfigurationInfo, handle, &config);
+ link->conf.Vcc = config.Vcc;
+
+ link->conf.ConfigIndex = 0x20;
+ link->io.NumPorts1 = 64;
+ link->io.IOAddrLines = 6;
+
+ for (n = 0; n < 0x400; n += 0x40) {
+ link->io.BasePort1 = n ^ 0x300;
+ i = CardServices(RequestIO, link->handle, &link->io);
+ if (i == CS_SUCCESS)
+ break;
+ }
+
+ if (i != CS_SUCCESS) {
+ cs_error(link->handle, RequestIO, i);
+ goto failed;
+ }
+
+ i = CardServices(RequestIRQ, link->handle, &link->irq);
+ if (i != CS_SUCCESS) {
+ cs_error(link->handle, RequestIRQ, i);
+ link->irq.AssignedIRQ = 0;
+ }
+
+ i = CardServices(RequestConfiguration, link->handle, &link->conf);
+ if (i != CS_SUCCESS) {
+ cs_error(link->handle, RequestConfiguration, i);
+ goto failed;
+ }
+
+ MOD_INC_USE_COUNT;
+
+ if (bluecard_open(info) != 0)
+ goto failed;
+
+ strcpy(info->node.dev_name, info->hdev.name);
+ link->dev = &info->node;
+ link->state &= ~DEV_CONFIG_PENDING;
+
+ return;
+
+cs_failed:
+ cs_error(link->handle, last_fn, last_ret);
+
+failed:
+ bluecard_release((u_long)link);
+}
+
+
+void bluecard_release(u_long arg)
+{
+ dev_link_t *link = (dev_link_t *)arg;
+ bluecard_info_t *info = link->priv;
+
+ if (link->state & DEV_PRESENT)
+ bluecard_close(info);
+
+ MOD_DEC_USE_COUNT;
+
+ link->dev = NULL;
+
+ CardServices(ReleaseConfiguration, link->handle);
+ CardServices(ReleaseIO, link->handle, &link->io);
+ CardServices(ReleaseIRQ, link->handle, &link->irq);
+
+ link->state &= ~DEV_CONFIG;
+}
+
+
+int bluecard_event(event_t event, int priority, event_callback_args_t *args)
+{
+ dev_link_t *link = args->client_data;
+ bluecard_info_t *info = link->priv;
+
+ switch (event) {
+ case CS_EVENT_CARD_REMOVAL:
+ link->state &= ~DEV_PRESENT;
+ if (link->state & DEV_CONFIG) {
+ bluecard_close(info);
+ mod_timer(&link->release, jiffies + HZ / 20);
+ }
+ break;
+ case CS_EVENT_CARD_INSERTION:
+ link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+ bluecard_config(link);
+ break;
+ case CS_EVENT_PM_SUSPEND:
+ link->state |= DEV_SUSPEND;
+ /* Fall through... */
+ case CS_EVENT_RESET_PHYSICAL:
+ if (link->state & DEV_CONFIG)
+ CardServices(ReleaseConfiguration, link->handle);
+ break;
+ case CS_EVENT_PM_RESUME:
+ link->state &= ~DEV_SUSPEND;
+ /* Fall through... */
+ case CS_EVENT_CARD_RESET:
+ if (DEV_OK(link))
+ CardServices(RequestConfiguration, link->handle, &link->conf);
+ break;
+ }
+
+ return 0;
+}
+
+
+
+/* ======================== Module initialization ======================== */
+
+
+int __init init_bluecard_cs(void)
+{
+ servinfo_t serv;
+ int err;
+
+ CardServices(GetCardServicesInfo, &serv);
+ if (serv.Revision != CS_RELEASE_CODE) {
+ printk(KERN_NOTICE "bluecard_cs: Card Services release does not match!\n");
+ return -1;
+ }
+
+ err = register_pccard_driver(&dev_info, &bluecard_attach, &bluecard_detach);
+
+ return err;
+}
+
+
+void __exit exit_bluecard_cs(void)
+{
+ unregister_pccard_driver(&dev_info);
+
+ while (dev_list != NULL)
+ bluecard_detach(dev_list);
+}
+
+
+module_init(init_bluecard_cs);
+module_exit(exit_bluecard_cs);
+
+EXPORT_NO_SYMBOLS;
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)