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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [bluetooth/] [bluecard_cs.c] - Rev 1774
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/* * * 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;
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