| /* |
| * |
| * Driver for Bluetooth PCMCIA cards with HCI UART interface |
| * |
| * 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/delay.h> |
| #include <linux/errno.h> |
| #include <linux/ptrace.h> |
| #include <linux/ioport.h> |
| #include <linux/spinlock.h> |
| #include <linux/moduleparam.h> |
| |
| #include <linux/skbuff.h> |
| #include <linux/string.h> |
| #include <linux/serial.h> |
| #include <linux/serial_reg.h> |
| #include <linux/bitops.h> |
| #include <asm/system.h> |
| #include <asm/io.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 ======================== */ |
| |
| |
| MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
| MODULE_DESCRIPTION("Bluetooth driver for Bluetooth PCMCIA cards with HCI UART interface"); |
| MODULE_LICENSE("GPL"); |
| |
| |
| |
| /* ======================== Local structures ======================== */ |
| |
| |
| typedef struct btuart_info_t { |
| struct pcmcia_device *p_dev; |
| dev_node_t node; |
| |
| struct hci_dev *hdev; |
| |
| spinlock_t lock; /* For serializing operations */ |
| |
| struct sk_buff_head txq; |
| unsigned long tx_state; |
| |
| unsigned long rx_state; |
| unsigned long rx_count; |
| struct sk_buff *rx_skb; |
| } btuart_info_t; |
| |
| |
| static void btuart_config(struct pcmcia_device *link); |
| static void btuart_release(struct pcmcia_device *link); |
| |
| static void btuart_detach(struct pcmcia_device *p_dev); |
| |
| |
| /* Maximum baud rate */ |
| #define SPEED_MAX 115200 |
| |
| /* Default baud rate: 57600, 115200, 230400 or 460800 */ |
| #define DEFAULT_BAUD_RATE 115200 |
| |
| |
| /* Transmit states */ |
| #define XMIT_SENDING 1 |
| #define XMIT_WAKEUP 2 |
| #define XMIT_WAITING 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 |
| |
| |
| |
| /* ======================== Interrupt handling ======================== */ |
| |
| |
| static int btuart_write(unsigned int iobase, int fifo_size, __u8 *buf, int len) |
| { |
| int actual = 0; |
| |
| /* Tx FIFO should be empty */ |
| if (!(inb(iobase + UART_LSR) & UART_LSR_THRE)) |
| return 0; |
| |
| /* Fill FIFO with current frame */ |
| while ((fifo_size-- > 0) && (actual < len)) { |
| /* Transmit next byte */ |
| outb(buf[actual], iobase + UART_TX); |
| actual++; |
| } |
| |
| return actual; |
| } |
| |
| |
| static void btuart_write_wakeup(btuart_info_t *info) |
| { |
| if (!info) { |
| BT_ERR("Unknown device"); |
| 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->p_dev->io.BasePort1; |
| register struct sk_buff *skb; |
| register int len; |
| |
| clear_bit(XMIT_WAKEUP, &(info->tx_state)); |
| |
| if (!(info->p_dev->state & DEV_PRESENT)) |
| return; |
| |
| if (!(skb = skb_dequeue(&(info->txq)))) |
| break; |
| |
| /* Send frame */ |
| len = btuart_write(iobase, 16, skb->data, skb->len); |
| set_bit(XMIT_WAKEUP, &(info->tx_state)); |
| |
| if (len == skb->len) { |
| kfree_skb(skb); |
| } else { |
| skb_pull(skb, len); |
| skb_queue_head(&(info->txq), skb); |
| } |
| |
| info->hdev->stat.byte_tx += len; |
| |
| } while (test_bit(XMIT_WAKEUP, &(info->tx_state))); |
| |
| clear_bit(XMIT_SENDING, &(info->tx_state)); |
| } |
| |
| |
| static void btuart_receive(btuart_info_t *info) |
| { |
| unsigned int iobase; |
| int boguscount = 0; |
| |
| if (!info) { |
| BT_ERR("Unknown device"); |
| return; |
| } |
| |
| iobase = info->p_dev->io.BasePort1; |
| |
| do { |
| info->hdev->stat.byte_rx++; |
| |
| /* Allocate packet */ |
| if (info->rx_skb == NULL) { |
| info->rx_state = RECV_WAIT_PACKET_TYPE; |
| info->rx_count = 0; |
| if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { |
| BT_ERR("Can't allocate mem for new packet"); |
| return; |
| } |
| } |
| |
| if (info->rx_state == RECV_WAIT_PACKET_TYPE) { |
| |
| info->rx_skb->dev = (void *) info->hdev; |
| bt_cb(info->rx_skb)->pkt_type = inb(iobase + UART_RX); |
| |
| switch (bt_cb(info->rx_skb)->pkt_type) { |
| |
| 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++; |
| clear_bit(HCI_RUNNING, &(info->hdev->flags)); |
| |
| kfree_skb(info->rx_skb); |
| info->rx_skb = NULL; |
| break; |
| |
| } |
| |
| } else { |
| |
| *skb_put(info->rx_skb, 1) = inb(iobase + UART_RX); |
| 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 = (struct 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 = (struct 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 = (struct 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; |
| |
| } |
| |
| } |
| |
| } |
| |
| /* Make sure we don't stay here too long */ |
| if (boguscount++ > 16) |
| break; |
| |
| } while (inb(iobase + UART_LSR) & UART_LSR_DR); |
| } |
| |
| |
| static irqreturn_t btuart_interrupt(int irq, void *dev_inst, struct pt_regs *regs) |
| { |
| btuart_info_t *info = dev_inst; |
| unsigned int iobase; |
| int boguscount = 0; |
| int iir, lsr; |
| |
| if (!info || !info->hdev) { |
| BT_ERR("Call of irq %d for unknown device", irq); |
| return IRQ_NONE; |
| } |
| |
| iobase = info->p_dev->io.BasePort1; |
| |
| spin_lock(&(info->lock)); |
| |
| iir = inb(iobase + UART_IIR) & UART_IIR_ID; |
| while (iir) { |
| |
| /* Clear interrupt */ |
| lsr = inb(iobase + UART_LSR); |
| |
| switch (iir) { |
| case UART_IIR_RLSI: |
| BT_ERR("RLSI"); |
| break; |
| case UART_IIR_RDI: |
| /* Receive interrupt */ |
| btuart_receive(info); |
| break; |
| case UART_IIR_THRI: |
| if (lsr & UART_LSR_THRE) { |
| /* Transmitter ready for data */ |
| btuart_write_wakeup(info); |
| } |
| break; |
| default: |
| BT_ERR("Unhandled IIR=%#x", iir); |
| break; |
| } |
| |
| /* Make sure we don't stay here too long */ |
| if (boguscount++ > 100) |
| break; |
| |
| iir = inb(iobase + UART_IIR) & UART_IIR_ID; |
| |
| } |
| |
| spin_unlock(&(info->lock)); |
| |
| return IRQ_HANDLED; |
| } |
| |
| |
| static void btuart_change_speed(btuart_info_t *info, unsigned int speed) |
| { |
| unsigned long flags; |
| unsigned int iobase; |
| int fcr; /* FIFO control reg */ |
| int lcr; /* Line control reg */ |
| int divisor; |
| |
| if (!info) { |
| BT_ERR("Unknown device"); |
| return; |
| } |
| |
| iobase = info->p_dev->io.BasePort1; |
| |
| spin_lock_irqsave(&(info->lock), flags); |
| |
| /* Turn off interrupts */ |
| outb(0, iobase + UART_IER); |
| |
| divisor = SPEED_MAX / speed; |
| |
| fcr = UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT; |
| |
| /* |
| * Use trigger level 1 to avoid 3 ms. timeout delay at 9600 bps, and |
| * almost 1,7 ms at 19200 bps. At speeds above that we can just forget |
| * about this timeout since it will always be fast enough. |
| */ |
| |
| if (speed < 38400) |
| fcr |= UART_FCR_TRIGGER_1; |
| else |
| fcr |= UART_FCR_TRIGGER_14; |
| |
| /* Bluetooth cards use 8N1 */ |
| lcr = UART_LCR_WLEN8; |
| |
| outb(UART_LCR_DLAB | lcr, iobase + UART_LCR); /* Set DLAB */ |
| outb(divisor & 0xff, iobase + UART_DLL); /* Set speed */ |
| outb(divisor >> 8, iobase + UART_DLM); |
| outb(lcr, iobase + UART_LCR); /* Set 8N1 */ |
| outb(fcr, iobase + UART_FCR); /* Enable FIFO's */ |
| |
| /* Turn on interrups */ |
| outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER); |
| |
| spin_unlock_irqrestore(&(info->lock), flags); |
| } |
| |
| |
| |
| /* ======================== HCI interface ======================== */ |
| |
| |
| static int btuart_hci_flush(struct hci_dev *hdev) |
| { |
| btuart_info_t *info = (btuart_info_t *)(hdev->driver_data); |
| |
| /* Drop TX queue */ |
| skb_queue_purge(&(info->txq)); |
| |
| return 0; |
| } |
| |
| |
| static int btuart_hci_open(struct hci_dev *hdev) |
| { |
| set_bit(HCI_RUNNING, &(hdev->flags)); |
| |
| return 0; |
| } |
| |
| |
| static int btuart_hci_close(struct hci_dev *hdev) |
| { |
| if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags))) |
| return 0; |
| |
| btuart_hci_flush(hdev); |
| |
| return 0; |
| } |
| |
| |
| static int btuart_hci_send_frame(struct sk_buff *skb) |
| { |
| btuart_info_t *info; |
| struct hci_dev *hdev = (struct hci_dev *)(skb->dev); |
| |
| if (!hdev) { |
| BT_ERR("Frame for unknown HCI device (hdev=NULL)"); |
| return -ENODEV; |
| } |
| |
| info = (btuart_info_t *)(hdev->driver_data); |
| |
| 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); |
| |
| btuart_write_wakeup(info); |
| |
| return 0; |
| } |
| |
| |
| static void btuart_hci_destruct(struct hci_dev *hdev) |
| { |
| } |
| |
| |
| static int btuart_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) |
| { |
| return -ENOIOCTLCMD; |
| } |
| |
| |
| |
| /* ======================== Card services HCI interaction ======================== */ |
| |
| |
| static int btuart_open(btuart_info_t *info) |
| { |
| unsigned long flags; |
| unsigned int iobase = info->p_dev->io.BasePort1; |
| struct hci_dev *hdev; |
| |
| spin_lock_init(&(info->lock)); |
| |
| 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->type = HCI_PCCARD; |
| hdev->driver_data = info; |
| |
| hdev->open = btuart_hci_open; |
| hdev->close = btuart_hci_close; |
| hdev->flush = btuart_hci_flush; |
| hdev->send = btuart_hci_send_frame; |
| hdev->destruct = btuart_hci_destruct; |
| hdev->ioctl = btuart_hci_ioctl; |
| |
| hdev->owner = THIS_MODULE; |
| |
| spin_lock_irqsave(&(info->lock), flags); |
| |
| /* Reset UART */ |
| outb(0, iobase + UART_MCR); |
| |
| /* Turn off interrupts */ |
| outb(0, iobase + UART_IER); |
| |
| /* Initialize UART */ |
| outb(UART_LCR_WLEN8, iobase + UART_LCR); /* Reset DLAB */ |
| outb((UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2), iobase + UART_MCR); |
| |
| /* Turn on interrupts */ |
| // outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER); |
| |
| spin_unlock_irqrestore(&(info->lock), flags); |
| |
| btuart_change_speed(info, DEFAULT_BAUD_RATE); |
| |
| /* Timeout before it is safe to send the first HCI packet */ |
| msleep(1000); |
| |
| /* 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 btuart_close(btuart_info_t *info) |
| { |
| unsigned long flags; |
| unsigned int iobase = info->p_dev->io.BasePort1; |
| struct hci_dev *hdev = info->hdev; |
| |
| if (!hdev) |
| return -ENODEV; |
| |
| btuart_hci_close(hdev); |
| |
| spin_lock_irqsave(&(info->lock), flags); |
| |
| /* Reset UART */ |
| outb(0, iobase + UART_MCR); |
| |
| /* Turn off interrupts */ |
| outb(0, iobase + UART_IER); |
| |
| spin_unlock_irqrestore(&(info->lock), flags); |
| |
| if (hci_unregister_dev(hdev) < 0) |
| BT_ERR("Can't unregister HCI device %s", hdev->name); |
| |
| hci_free_dev(hdev); |
| |
| return 0; |
| } |
| |
| static int btuart_attach(struct pcmcia_device *link) |
| { |
| btuart_info_t *info; |
| |
| /* Create new info device */ |
| info = kzalloc(sizeof(*info), GFP_KERNEL); |
| if (!info) |
| return -ENOMEM; |
| |
| info->p_dev = link; |
| link->priv = info; |
| |
| 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_LEVEL_ID; |
| |
| link->irq.Handler = btuart_interrupt; |
| link->irq.Instance = info; |
| |
| link->conf.Attributes = CONF_ENABLE_IRQ; |
| link->conf.IntType = INT_MEMORY_AND_IO; |
| |
| link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; |
| btuart_config(link); |
| |
| return 0; |
| } |
| |
| |
| static void btuart_detach(struct pcmcia_device *link) |
| { |
| btuart_info_t *info = link->priv; |
| |
| if (link->state & DEV_CONFIG) |
| btuart_release(link); |
| |
| kfree(info); |
| } |
| |
| static int get_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse) |
| { |
| int i; |
| |
| i = pcmcia_get_tuple_data(handle, tuple); |
| if (i != CS_SUCCESS) |
| return i; |
| |
| return pcmcia_parse_tuple(handle, tuple, parse); |
| } |
| |
| static int first_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse) |
| { |
| if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS) |
| return CS_NO_MORE_ITEMS; |
| return get_tuple(handle, tuple, parse); |
| } |
| |
| static int next_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse) |
| { |
| if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS) |
| return CS_NO_MORE_ITEMS; |
| return get_tuple(handle, tuple, parse); |
| } |
| |
| static void btuart_config(struct pcmcia_device *link) |
| { |
| static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 }; |
| btuart_info_t *info = link->priv; |
| tuple_t tuple; |
| u_short buf[256]; |
| cisparse_t parse; |
| cistpl_cftable_entry_t *cf = &parse.cftable_entry; |
| int i, j, try, 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(link, &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; |
| |
| /* First pass: look for a config entry that looks normal. */ |
| tuple.TupleData = (cisdata_t *) buf; |
| tuple.TupleOffset = 0; |
| tuple.TupleDataMax = 255; |
| tuple.Attributes = 0; |
| tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; |
| /* Two tries: without IO aliases, then with aliases */ |
| for (try = 0; try < 2; try++) { |
| i = first_tuple(link, &tuple, &parse); |
| while (i != CS_NO_MORE_ITEMS) { |
| if (i != CS_SUCCESS) |
| goto next_entry; |
| if (cf->vpp1.present & (1 << CISTPL_POWER_VNOM)) |
| link->conf.Vpp = cf->vpp1.param[CISTPL_POWER_VNOM] / 10000; |
| if ((cf->io.nwin > 0) && (cf->io.win[0].len == 8) && (cf->io.win[0].base != 0)) { |
| link->conf.ConfigIndex = cf->index; |
| link->io.BasePort1 = cf->io.win[0].base; |
| link->io.IOAddrLines = (try == 0) ? 16 : cf->io.flags & CISTPL_IO_LINES_MASK; |
| i = pcmcia_request_io(link, &link->io); |
| if (i == CS_SUCCESS) |
| goto found_port; |
| } |
| next_entry: |
| i = next_tuple(link, &tuple, &parse); |
| } |
| } |
| |
| /* Second pass: try to find an entry that isn't picky about |
| its base address, then try to grab any standard serial port |
| address, and finally try to get any free port. */ |
| i = first_tuple(link, &tuple, &parse); |
| while (i != CS_NO_MORE_ITEMS) { |
| if ((i == CS_SUCCESS) && (cf->io.nwin > 0) |
| && ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) { |
| link->conf.ConfigIndex = cf->index; |
| for (j = 0; j < 5; j++) { |
| link->io.BasePort1 = base[j]; |
| link->io.IOAddrLines = base[j] ? 16 : 3; |
| i = pcmcia_request_io(link, &link->io); |
| if (i == CS_SUCCESS) |
| goto found_port; |
| } |
| } |
| i = next_tuple(link, &tuple, &parse); |
| } |
| |
| found_port: |
| if (i != CS_SUCCESS) { |
| BT_ERR("No usable port range found"); |
| cs_error(link, RequestIO, i); |
| goto failed; |
| } |
| |
| i = pcmcia_request_irq(link, &link->irq); |
| if (i != CS_SUCCESS) { |
| cs_error(link, RequestIRQ, i); |
| link->irq.AssignedIRQ = 0; |
| } |
| |
| i = pcmcia_request_configuration(link, &link->conf); |
| if (i != CS_SUCCESS) { |
| cs_error(link, RequestConfiguration, i); |
| goto failed; |
| } |
| |
| if (btuart_open(info) != 0) |
| goto failed; |
| |
| strcpy(info->node.dev_name, info->hdev->name); |
| link->dev_node = &info->node; |
| link->state &= ~DEV_CONFIG_PENDING; |
| |
| return; |
| |
| cs_failed: |
| cs_error(link, last_fn, last_ret); |
| |
| failed: |
| btuart_release(link); |
| } |
| |
| |
| static void btuart_release(struct pcmcia_device *link) |
| { |
| btuart_info_t *info = link->priv; |
| |
| if (link->state & DEV_PRESENT) |
| btuart_close(info); |
| |
| pcmcia_disable_device(link); |
| } |
| |
| static struct pcmcia_device_id btuart_ids[] = { |
| /* don't use this driver. Use serial_cs + hci_uart instead */ |
| PCMCIA_DEVICE_NULL |
| }; |
| MODULE_DEVICE_TABLE(pcmcia, btuart_ids); |
| |
| static struct pcmcia_driver btuart_driver = { |
| .owner = THIS_MODULE, |
| .drv = { |
| .name = "btuart_cs", |
| }, |
| .probe = btuart_attach, |
| .remove = btuart_detach, |
| .id_table = btuart_ids, |
| }; |
| |
| static int __init init_btuart_cs(void) |
| { |
| return pcmcia_register_driver(&btuart_driver); |
| } |
| |
| |
| static void __exit exit_btuart_cs(void) |
| { |
| pcmcia_unregister_driver(&btuart_driver); |
| } |
| |
| module_init(init_btuart_cs); |
| module_exit(exit_btuart_cs); |