| /* |
| * |
| * A driver for Nokia Connectivity Card DTL-1 devices |
| * |
| * 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 <linux/string.h> |
| #include <linux/serial.h> |
| #include <linux/serial_reg.h> |
| #include <asm/system.h> |
| #include <asm/bitops.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 = 0xffff; |
| 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 Nokia Connectivity Card DTL-1"); |
| MODULE_LICENSE("GPL"); |
| |
| |
| |
| /* ======================== Local structures ======================== */ |
| |
| |
| typedef struct dtl1_info_t { |
| dev_link_t link; |
| dev_node_t node; |
| |
| struct hci_dev hdev; |
| |
| spinlock_t lock; /* For serializing operations */ |
| |
| unsigned long flowmask; /* HCI flow mask */ |
| int ri_latch; |
| |
| struct sk_buff_head txq; |
| unsigned long tx_state; |
| |
| unsigned long rx_state; |
| unsigned long rx_count; |
| struct sk_buff *rx_skb; |
| } dtl1_info_t; |
| |
| |
| void dtl1_config(dev_link_t *link); |
| void dtl1_release(u_long arg); |
| int dtl1_event(event_t event, int priority, event_callback_args_t *args); |
| |
| static dev_info_t dev_info = "dtl1_cs"; |
| |
| dev_link_t *dtl1_attach(void); |
| void dtl1_detach(dev_link_t *); |
| |
| static dev_link_t *dev_list = NULL; |
| |
| |
| /* Transmit states */ |
| #define XMIT_SENDING 1 |
| #define XMIT_WAKEUP 2 |
| #define XMIT_WAITING 8 |
| |
| /* Receiver States */ |
| #define RECV_WAIT_NSH 0 |
| #define RECV_WAIT_DATA 1 |
| |
| |
| typedef struct { |
| u8 type; |
| u8 zero; |
| u16 len; |
| } __attribute__ ((packed)) nsh_t; /* Nokia Specific Header */ |
| |
| #define NSHL 4 /* Nokia Specific Header Length */ |
| |
| |
| |
| /* ======================== Interrupt handling ======================== */ |
| |
| |
| static int dtl1_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 dtl1_write_wakeup(dtl1_info_t *info) |
| { |
| if (!info) { |
| printk(KERN_WARNING "dtl1_cs: Call of write_wakeup for unknown device.\n"); |
| return; |
| } |
| |
| if (test_bit(XMIT_WAITING, &(info->tx_state))) { |
| set_bit(XMIT_WAKEUP, &(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 struct sk_buff *skb; |
| register int len; |
| |
| clear_bit(XMIT_WAKEUP, &(info->tx_state)); |
| |
| if (!(info->link.state & DEV_PRESENT)) |
| return; |
| |
| if (!(skb = skb_dequeue(&(info->txq)))) |
| break; |
| |
| /* Send frame */ |
| len = dtl1_write(iobase, 32, skb->data, skb->len); |
| |
| if (len == skb->len) { |
| set_bit(XMIT_WAITING, &(info->tx_state)); |
| 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 dtl1_control(dtl1_info_t *info, struct sk_buff *skb) |
| { |
| u8 flowmask = *(u8 *)skb->data; |
| int i; |
| |
| printk(KERN_INFO "dtl1_cs: Nokia control data = "); |
| for (i = 0; i < skb->len; i++) { |
| printk("%02x ", skb->data[i]); |
| } |
| printk("\n"); |
| |
| /* transition to active state */ |
| if (((info->flowmask & 0x07) == 0) && ((flowmask & 0x07) != 0)) { |
| clear_bit(XMIT_WAITING, &(info->tx_state)); |
| dtl1_write_wakeup(info); |
| } |
| |
| info->flowmask = flowmask; |
| |
| kfree_skb(skb); |
| } |
| |
| |
| static void dtl1_receive(dtl1_info_t *info) |
| { |
| unsigned int iobase; |
| nsh_t *nsh; |
| int boguscount = 0; |
| |
| if (!info) { |
| printk(KERN_WARNING "dtl1_cs: Call of receive for unknown device.\n"); |
| return; |
| } |
| |
| iobase = info->link.io.BasePort1; |
| |
| do { |
| info->hdev.stat.byte_rx++; |
| |
| /* Allocate packet */ |
| if (info->rx_skb == NULL) |
| if (!(info->rx_skb = bluez_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { |
| printk(KERN_WARNING "dtl1_cs: Can't allocate mem for new packet.\n"); |
| info->rx_state = RECV_WAIT_NSH; |
| info->rx_count = NSHL; |
| return; |
| } |
| |
| *skb_put(info->rx_skb, 1) = inb(iobase + UART_RX); |
| nsh = (nsh_t *)info->rx_skb->data; |
| |
| info->rx_count--; |
| |
| if (info->rx_count == 0) { |
| |
| switch (info->rx_state) { |
| case RECV_WAIT_NSH: |
| info->rx_state = RECV_WAIT_DATA; |
| info->rx_count = nsh->len + (nsh->len & 0x0001); |
| break; |
| case RECV_WAIT_DATA: |
| info->rx_skb->pkt_type = nsh->type; |
| |
| /* remove PAD byte if it exists */ |
| if (nsh->len & 0x0001) { |
| info->rx_skb->tail--; |
| info->rx_skb->len--; |
| } |
| |
| /* remove NSH */ |
| skb_pull(info->rx_skb, NSHL); |
| |
| switch (info->rx_skb->pkt_type) { |
| case 0x80: |
| /* control data for the Nokia Card */ |
| dtl1_control(info, info->rx_skb); |
| break; |
| case 0x82: |
| case 0x83: |
| case 0x84: |
| /* send frame to the HCI layer */ |
| info->rx_skb->dev = (void *)&(info->hdev); |
| info->rx_skb->pkt_type &= 0x0f; |
| hci_recv_frame(info->rx_skb); |
| break; |
| default: |
| /* unknown packet */ |
| printk(KERN_WARNING "dtl1_cs: Unknown HCI packet with type 0x%02x received.\n", info->rx_skb->pkt_type); |
| kfree_skb(info->rx_skb); |
| break; |
| } |
| |
| info->rx_state = RECV_WAIT_NSH; |
| info->rx_count = NSHL; |
| info->rx_skb = NULL; |
| break; |
| } |
| |
| } |
| |
| /* Make sure we don't stay here to long */ |
| if (boguscount++ > 32) |
| break; |
| |
| } while (inb(iobase + UART_LSR) & UART_LSR_DR); |
| } |
| |
| |
| void dtl1_interrupt(int irq, void *dev_inst, struct pt_regs *regs) |
| { |
| dtl1_info_t *info = dev_inst; |
| unsigned int iobase; |
| unsigned char msr; |
| int boguscount = 0; |
| int iir, lsr; |
| |
| if (!info) { |
| printk(KERN_WARNING "dtl1_cs: Call of irq %d for unknown device.\n", irq); |
| return; |
| } |
| |
| iobase = info->link.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: |
| printk(KERN_NOTICE "dtl1_cs: RLSI\n"); |
| break; |
| case UART_IIR_RDI: |
| /* Receive interrupt */ |
| dtl1_receive(info); |
| break; |
| case UART_IIR_THRI: |
| if (lsr & UART_LSR_THRE) { |
| /* Transmitter ready for data */ |
| dtl1_write_wakeup(info); |
| } |
| break; |
| default: |
| printk(KERN_NOTICE "dtl1_cs: Unhandled IIR=%#x\n", iir); |
| break; |
| } |
| |
| /* Make sure we don't stay here to long */ |
| if (boguscount++ > 100) |
| break; |
| |
| iir = inb(iobase + UART_IIR) & UART_IIR_ID; |
| |
| } |
| |
| msr = inb(iobase + UART_MSR); |
| |
| if (info->ri_latch ^ (msr & UART_MSR_RI)) { |
| info->ri_latch = msr & UART_MSR_RI; |
| clear_bit(XMIT_WAITING, &(info->tx_state)); |
| dtl1_write_wakeup(info); |
| } |
| |
| spin_unlock(&(info->lock)); |
| } |
| |
| |
| |
| /* ======================== HCI interface ======================== */ |
| |
| |
| static int dtl1_hci_open(struct hci_dev *hdev) |
| { |
| set_bit(HCI_RUNNING, &(hdev->flags)); |
| |
| return 0; |
| } |
| |
| |
| static int dtl1_hci_flush(struct hci_dev *hdev) |
| { |
| dtl1_info_t *info = (dtl1_info_t *)(hdev->driver_data); |
| |
| /* Drop TX queue */ |
| skb_queue_purge(&(info->txq)); |
| |
| return 0; |
| } |
| |
| |
| static int dtl1_hci_close(struct hci_dev *hdev) |
| { |
| if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags))) |
| return 0; |
| |
| dtl1_hci_flush(hdev); |
| |
| return 0; |
| } |
| |
| |
| static int dtl1_hci_send_frame(struct sk_buff *skb) |
| { |
| dtl1_info_t *info; |
| struct hci_dev *hdev = (struct hci_dev *)(skb->dev); |
| struct sk_buff *s; |
| nsh_t nsh; |
| |
| if (!hdev) { |
| printk(KERN_WARNING "dtl1_cs: Frame for unknown HCI device (hdev=NULL)."); |
| return -ENODEV; |
| } |
| |
| info = (dtl1_info_t *)(hdev->driver_data); |
| |
| switch (skb->pkt_type) { |
| case HCI_COMMAND_PKT: |
| hdev->stat.cmd_tx++; |
| nsh.type = 0x81; |
| break; |
| case HCI_ACLDATA_PKT: |
| hdev->stat.acl_tx++; |
| nsh.type = 0x82; |
| break; |
| case HCI_SCODATA_PKT: |
| hdev->stat.sco_tx++; |
| nsh.type = 0x83; |
| break; |
| }; |
| |
| nsh.zero = 0; |
| nsh.len = skb->len; |
| |
| s = bluez_skb_alloc(NSHL + skb->len + 1, GFP_ATOMIC); |
| skb_reserve(s, NSHL); |
| memcpy(skb_put(s, skb->len), skb->data, skb->len); |
| if (skb->len & 0x0001) |
| *skb_put(s, 1) = 0; /* PAD */ |
| |
| /* Prepend skb with Nokia frame header and queue */ |
| memcpy(skb_push(s, NSHL), &nsh, NSHL); |
| skb_queue_tail(&(info->txq), s); |
| |
| dtl1_write_wakeup(info); |
| |
| kfree_skb(skb); |
| |
| return 0; |
| } |
| |
| |
| static void dtl1_hci_destruct(struct hci_dev *hdev) |
| { |
| } |
| |
| |
| static int dtl1_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) |
| { |
| return -ENOIOCTLCMD; |
| } |
| |
| |
| |
| /* ======================== Card services HCI interaction ======================== */ |
| |
| |
| int dtl1_open(dtl1_info_t *info) |
| { |
| unsigned long flags; |
| unsigned int iobase = info->link.io.BasePort1; |
| struct hci_dev *hdev; |
| |
| spin_lock_init(&(info->lock)); |
| |
| skb_queue_head_init(&(info->txq)); |
| |
| info->rx_state = RECV_WAIT_NSH; |
| info->rx_count = NSHL; |
| info->rx_skb = NULL; |
| |
| set_bit(XMIT_WAITING, &(info->tx_state)); |
| |
| 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); |
| |
| info->ri_latch = inb(info->link.io.BasePort1 + UART_MSR) & UART_MSR_RI; |
| |
| /* Turn on interrupts */ |
| outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER); |
| |
| spin_unlock_irqrestore(&(info->lock), flags); |
| |
| /* Timeout before it is safe to send the first HCI packet */ |
| set_current_state(TASK_INTERRUPTIBLE); |
| schedule_timeout(HZ * 2); |
| |
| |
| /* Initialize and register HCI device */ |
| |
| hdev = &(info->hdev); |
| |
| hdev->type = HCI_PCCARD; |
| hdev->driver_data = info; |
| |
| hdev->open = dtl1_hci_open; |
| hdev->close = dtl1_hci_close; |
| hdev->flush = dtl1_hci_flush; |
| hdev->send = dtl1_hci_send_frame; |
| hdev->destruct = dtl1_hci_destruct; |
| hdev->ioctl = dtl1_hci_ioctl; |
| |
| if (hci_register_dev(hdev) < 0) { |
| printk(KERN_WARNING "dtl1_cs: Can't register HCI device %s.\n", hdev->name); |
| return -ENODEV; |
| } |
| |
| return 0; |
| } |
| |
| |
| int dtl1_close(dtl1_info_t *info) |
| { |
| unsigned long flags; |
| unsigned int iobase = info->link.io.BasePort1; |
| struct hci_dev *hdev = &(info->hdev); |
| |
| if (info->link.state & DEV_CONFIG_PENDING) |
| return -ENODEV; |
| |
| dtl1_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) |
| printk(KERN_WARNING "dtl1_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 *dtl1_attach(void) |
| { |
| dtl1_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 = &dtl1_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 = dtl1_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 = &dtl1_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); |
| dtl1_detach(link); |
| return NULL; |
| } |
| |
| return link; |
| } |
| |
| |
| void dtl1_detach(dev_link_t *link) |
| { |
| dtl1_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) |
| dtl1_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 dtl1_config(dev_link_t *link) |
| { |
| client_handle_t handle = link->handle; |
| dtl1_info_t *info = link->priv; |
| tuple_t tuple; |
| u_short buf[256]; |
| cisparse_t parse; |
| cistpl_cftable_entry_t *cf = &parse.cftable_entry; |
| config_info_t config; |
| int i, 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; |
| |
| tuple.TupleData = (cisdata_t *)buf; |
| tuple.TupleOffset = 0; |
| tuple.TupleDataMax = 255; |
| tuple.Attributes = 0; |
| tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; |
| |
| /* Look for a generic full-sized window */ |
| link->io.NumPorts1 = 8; |
| i = first_tuple(handle, &tuple, &parse); |
| while (i != CS_NO_MORE_ITEMS) { |
| if ((i == CS_SUCCESS) && (cf->io.nwin == 1) && (cf->io.win[0].len > 8)) { |
| link->conf.ConfigIndex = cf->index; |
| link->io.BasePort1 = cf->io.win[0].base; |
| link->io.NumPorts1 = cf->io.win[0].len; /*yo */ |
| link->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK; |
| i = CardServices(RequestIO, link->handle, &link->io); |
| if (i == CS_SUCCESS) |
| break; |
| } |
| i = next_tuple(handle, &tuple, &parse); |
| } |
| |
| 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 (dtl1_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: |
| dtl1_release((u_long)link); |
| } |
| |
| |
| void dtl1_release(u_long arg) |
| { |
| dev_link_t *link = (dev_link_t *)arg; |
| dtl1_info_t *info = link->priv; |
| |
| if (link->state & DEV_PRESENT) |
| dtl1_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 dtl1_event(event_t event, int priority, event_callback_args_t *args) |
| { |
| dev_link_t *link = args->client_data; |
| dtl1_info_t *info = link->priv; |
| |
| switch (event) { |
| case CS_EVENT_CARD_REMOVAL: |
| link->state &= ~DEV_PRESENT; |
| if (link->state & DEV_CONFIG) { |
| dtl1_close(info); |
| mod_timer(&link->release, jiffies + HZ / 20); |
| } |
| break; |
| case CS_EVENT_CARD_INSERTION: |
| link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; |
| dtl1_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_dtl1_cs(void) |
| { |
| servinfo_t serv; |
| int err; |
| |
| CardServices(GetCardServicesInfo, &serv); |
| if (serv.Revision != CS_RELEASE_CODE) { |
| printk(KERN_NOTICE "dtl1_cs: Card Services release does not match!\n"); |
| return -1; |
| } |
| |
| err = register_pccard_driver(&dev_info, &dtl1_attach, &dtl1_detach); |
| |
| return err; |
| } |
| |
| |
| void __exit exit_dtl1_cs(void) |
| { |
| unregister_pccard_driver(&dev_info); |
| |
| while (dev_list != NULL) |
| dtl1_detach(dev_list); |
| } |
| |
| |
| module_init(init_dtl1_cs); |
| module_exit(exit_dtl1_cs); |
| |
| EXPORT_NO_SYMBOLS; |