bluecard_cs.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:25k
- /*
- *
- * 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;