| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Marcel Holtmann | 2391 | 81.19% | 21 | 34.43% |
| Dominik Brodowski | 352 | 11.95% | 16 | 26.23% |
| Prasanna Karthik | 44 | 1.49% | 2 | 3.28% |
| Ding Xiang | 27 | 0.92% | 1 | 1.64% |
| Maksim Krasnyanskiy | 26 | 0.88% | 2 | 3.28% |
| Himangi Saraogi | 24 | 0.81% | 1 | 1.64% |
| Alan Cox | 13 | 0.44% | 2 | 3.28% |
| Valentin Ilie | 12 | 0.41% | 1 | 1.64% |
| Mike Frysinger | 10 | 0.34% | 1 | 1.64% |
| Rusty Russell | 8 | 0.27% | 1 | 1.64% |
| David Herrmann | 7 | 0.24% | 1 | 1.64% |
| Arnaldo Carvalho de Melo | 6 | 0.20% | 1 | 1.64% |
| Sachin Kamat | 6 | 0.20% | 1 | 1.64% |
| Christoph Hellwig | 4 | 0.14% | 1 | 1.64% |
| Andrew Morton | 3 | 0.10% | 1 | 1.64% |
| Andre Haupt | 2 | 0.07% | 1 | 1.64% |
| H Hartley Sweeten | 2 | 0.07% | 1 | 1.64% |
| Johannes Berg | 2 | 0.07% | 1 | 1.64% |
| Derek Robson | 2 | 0.07% | 1 | 1.64% |
| Adrian Bunk | 1 | 0.03% | 1 | 1.64% |
| Andrei Emeltchenko | 1 | 0.03% | 1 | 1.64% |
| Joe Perches | 1 | 0.03% | 1 | 1.64% |
| David Woodhouse | 1 | 0.03% | 1 | 1.64% |
| Total | 2945 | 61 |
/* * * Driver for the 3Com Bluetooth PCMCIA card * * Copyright (C) 2001-2002 Marcel Holtmann <marcel@holtmann.org> * Jose Orlando Pereira <jop@di.uminho.pt> * * * 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/module.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/types.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/io.h> #include <linux/device.h> #include <linux/firmware.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 the 3Com Bluetooth PCMCIA card"); MODULE_LICENSE("GPL"); MODULE_FIRMWARE("BT3CPCC.bin"); /* ======================== Local structures ======================== */ struct bt3c_info { struct pcmcia_device *p_dev; 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; }; static int bt3c_config(struct pcmcia_device *link); static void bt3c_release(struct pcmcia_device *link); static void bt3c_detach(struct pcmcia_device *p_dev); /* 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 /* ======================== Special I/O functions ======================== */ #define DATA_L 0 #define DATA_H 1 #define ADDR_L 2 #define ADDR_H 3 #define CONTROL 4 static inline void bt3c_address(unsigned int iobase, unsigned short addr) { outb(addr & 0xff, iobase + ADDR_L); outb((addr >> 8) & 0xff, iobase + ADDR_H); } static inline void bt3c_put(unsigned int iobase, unsigned short value) { outb(value & 0xff, iobase + DATA_L); outb((value >> 8) & 0xff, iobase + DATA_H); } static inline void bt3c_io_write(unsigned int iobase, unsigned short addr, unsigned short value) { bt3c_address(iobase, addr); bt3c_put(iobase, value); } static inline unsigned short bt3c_get(unsigned int iobase) { unsigned short value = inb(iobase + DATA_L); value |= inb(iobase + DATA_H) << 8; return value; } static inline unsigned short bt3c_read(unsigned int iobase, unsigned short addr) { bt3c_address(iobase, addr); return bt3c_get(iobase); } /* ======================== Interrupt handling ======================== */ static int bt3c_write(unsigned int iobase, int fifo_size, __u8 *buf, int len) { int actual = 0; bt3c_address(iobase, 0x7080); /* Fill FIFO with current frame */ while (actual < len) { /* Transmit next byte */ bt3c_put(iobase, buf[actual]); actual++; } bt3c_io_write(iobase, 0x7005, actual); return actual; } static void bt3c_write_wakeup(struct bt3c_info *info) { if (!info) { BT_ERR("Unknown device"); return; } if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) return; do { unsigned int iobase = info->p_dev->resource[0]->start; register struct sk_buff *skb; int len; if (!pcmcia_dev_present(info->p_dev)) break; skb = skb_dequeue(&(info->txq)); if (!skb) { clear_bit(XMIT_SENDING, &(info->tx_state)); break; } /* Send frame */ len = bt3c_write(iobase, 256, skb->data, skb->len); if (len != skb->len) BT_ERR("Very strange"); kfree_skb(skb); info->hdev->stat.byte_tx += len; } while (0); } static void bt3c_receive(struct bt3c_info *info) { unsigned int iobase; int size = 0, avail; if (!info) { BT_ERR("Unknown device"); return; } iobase = info->p_dev->resource[0]->start; avail = bt3c_read(iobase, 0x7006); bt3c_address(iobase, 0x7480); while (size < avail) { size++; info->hdev->stat.byte_rx++; /* Allocate packet */ if (!info->rx_skb) { info->rx_state = RECV_WAIT_PACKET_TYPE; info->rx_count = 0; info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); if (!info->rx_skb) { BT_ERR("Can't allocate mem for new packet"); return; } } if (info->rx_state == RECV_WAIT_PACKET_TYPE) { hci_skb_pkt_type(info->rx_skb) = inb(iobase + DATA_L); inb(iobase + DATA_H); switch (hci_skb_pkt_type(info->rx_skb)) { 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", hci_skb_pkt_type(info->rx_skb)); info->hdev->stat.err_rx++; kfree_skb(info->rx_skb); info->rx_skb = NULL; break; } } else { __u8 x = inb(iobase + DATA_L); skb_put_u8(info->rx_skb, x); inb(iobase + DATA_H); 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 = hci_event_hdr(info->rx_skb); info->rx_state = RECV_WAIT_DATA; info->rx_count = eh->plen; break; case RECV_WAIT_ACL_HEADER: ah = hci_acl_hdr(info->rx_skb); 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); info->rx_state = RECV_WAIT_DATA; info->rx_count = sh->dlen; break; case RECV_WAIT_DATA: hci_recv_frame(info->hdev, info->rx_skb); info->rx_skb = NULL; break; } } } } bt3c_io_write(iobase, 0x7006, 0x0000); } static irqreturn_t bt3c_interrupt(int irq, void *dev_inst) { struct bt3c_info *info = dev_inst; unsigned int iobase; int iir; irqreturn_t r = IRQ_NONE; if (!info || !info->hdev) /* our irq handler is shared */ return IRQ_NONE; iobase = info->p_dev->resource[0]->start; spin_lock(&(info->lock)); iir = inb(iobase + CONTROL); if (iir & 0x80) { int stat = bt3c_read(iobase, 0x7001); if ((stat & 0xff) == 0x7f) { BT_ERR("Very strange (stat=0x%04x)", stat); } else if ((stat & 0xff) != 0xff) { if (stat & 0x0020) { int status = bt3c_read(iobase, 0x7002) & 0x10; bt_dev_info(info->hdev, "Antenna %s", status ? "out" : "in"); } if (stat & 0x0001) bt3c_receive(info); if (stat & 0x0002) { clear_bit(XMIT_SENDING, &(info->tx_state)); bt3c_write_wakeup(info); } bt3c_io_write(iobase, 0x7001, 0x0000); outb(iir, iobase + CONTROL); } r = IRQ_HANDLED; } spin_unlock(&(info->lock)); return r; } /* ======================== HCI interface ======================== */ static int bt3c_hci_flush(struct hci_dev *hdev) { struct bt3c_info *info = hci_get_drvdata(hdev); /* Drop TX queue */ skb_queue_purge(&(info->txq)); return 0; } static int bt3c_hci_open(struct hci_dev *hdev) { return 0; } static int bt3c_hci_close(struct hci_dev *hdev) { bt3c_hci_flush(hdev); return 0; } static int bt3c_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb) { struct bt3c_info *info = hci_get_drvdata(hdev); unsigned long flags; switch (hci_skb_pkt_type(skb)) { 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), &hci_skb_pkt_type(skb), 1); skb_queue_tail(&(info->txq), skb); spin_lock_irqsave(&(info->lock), flags); bt3c_write_wakeup(info); spin_unlock_irqrestore(&(info->lock), flags); return 0; } /* ======================== Card services HCI interaction ======================== */ static int bt3c_load_firmware(struct bt3c_info *info, const unsigned char *firmware, int count) { char *ptr = (char *) firmware; char b[9]; unsigned int iobase, tmp, tn; unsigned long size, addr, fcs; int i, err = 0; iobase = info->p_dev->resource[0]->start; /* Reset */ bt3c_io_write(iobase, 0x8040, 0x0404); bt3c_io_write(iobase, 0x8040, 0x0400); udelay(1); bt3c_io_write(iobase, 0x8040, 0x0404); udelay(17); /* Load */ while (count) { if (ptr[0] != 'S') { BT_ERR("Bad address in firmware"); err = -EFAULT; goto error; } memset(b, 0, sizeof(b)); memcpy(b, ptr + 2, 2); if (kstrtoul(b, 16, &size) < 0) return -EINVAL; memset(b, 0, sizeof(b)); memcpy(b, ptr + 4, 8); if (kstrtoul(b, 16, &addr) < 0) return -EINVAL; memset(b, 0, sizeof(b)); memcpy(b, ptr + (size * 2) + 2, 2); if (kstrtoul(b, 16, &fcs) < 0) return -EINVAL; memset(b, 0, sizeof(b)); for (tmp = 0, i = 0; i < size; i++) { memcpy(b, ptr + (i * 2) + 2, 2); if (kstrtouint(b, 16, &tn)) return -EINVAL; tmp += tn; } if (((tmp + fcs) & 0xff) != 0xff) { BT_ERR("Checksum error in firmware"); err = -EILSEQ; goto error; } if (ptr[1] == '3') { bt3c_address(iobase, addr); memset(b, 0, sizeof(b)); for (i = 0; i < (size - 4) / 2; i++) { memcpy(b, ptr + (i * 4) + 12, 4); if (kstrtouint(b, 16, &tmp)) return -EINVAL; bt3c_put(iobase, tmp); } } ptr += (size * 2) + 6; count -= (size * 2) + 6; } udelay(17); /* Boot */ bt3c_address(iobase, 0x3000); outb(inb(iobase + CONTROL) | 0x40, iobase + CONTROL); error: udelay(17); /* Clear */ bt3c_io_write(iobase, 0x7006, 0x0000); bt3c_io_write(iobase, 0x7005, 0x0000); bt3c_io_write(iobase, 0x7001, 0x0000); return err; } static int bt3c_open(struct bt3c_info *info) { const struct firmware *firmware; struct hci_dev *hdev; int err; 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->bus = HCI_PCCARD; hci_set_drvdata(hdev, info); SET_HCIDEV_DEV(hdev, &info->p_dev->dev); hdev->open = bt3c_hci_open; hdev->close = bt3c_hci_close; hdev->flush = bt3c_hci_flush; hdev->send = bt3c_hci_send_frame; /* Load firmware */ err = request_firmware(&firmware, "BT3CPCC.bin", &info->p_dev->dev); if (err < 0) { BT_ERR("Firmware request failed"); goto error; } err = bt3c_load_firmware(info, firmware->data, firmware->size); release_firmware(firmware); if (err < 0) { BT_ERR("Firmware loading failed"); goto error; } /* Timeout before it is safe to send the first HCI packet */ msleep(1000); /* Register HCI device */ err = hci_register_dev(hdev); if (err < 0) { BT_ERR("Can't register HCI device"); goto error; } return 0; error: info->hdev = NULL; hci_free_dev(hdev); return err; } static int bt3c_close(struct bt3c_info *info) { struct hci_dev *hdev = info->hdev; if (!hdev) return -ENODEV; bt3c_hci_close(hdev); hci_unregister_dev(hdev); hci_free_dev(hdev); return 0; } static int bt3c_probe(struct pcmcia_device *link) { struct bt3c_info *info; /* Create new info device */ info = devm_kzalloc(&link->dev, sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; info->p_dev = link; link->priv = info; link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP | CONF_AUTO_SET_IO; return bt3c_config(link); } static void bt3c_detach(struct pcmcia_device *link) { bt3c_release(link); } static int bt3c_check_config(struct pcmcia_device *p_dev, void *priv_data) { int *try = priv_data; if (!try) p_dev->io_lines = 16; if ((p_dev->resource[0]->end != 8) || (p_dev->resource[0]->start == 0)) return -EINVAL; p_dev->resource[0]->end = 8; p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; return pcmcia_request_io(p_dev); } static int bt3c_check_config_notpicky(struct pcmcia_device *p_dev, void *priv_data) { static unsigned int base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 }; int j; if (p_dev->io_lines > 3) return -ENODEV; p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; p_dev->resource[0]->end = 8; for (j = 0; j < 5; j++) { p_dev->resource[0]->start = base[j]; p_dev->io_lines = base[j] ? 16 : 3; if (!pcmcia_request_io(p_dev)) return 0; } return -ENODEV; } static int bt3c_config(struct pcmcia_device *link) { struct bt3c_info *info = link->priv; int i; unsigned long try; /* First pass: look for a config entry that looks normal. * Two tries: without IO aliases, then with aliases */ for (try = 0; try < 2; try++) if (!pcmcia_loop_config(link, bt3c_check_config, (void *) try)) goto found_port; /* 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. */ if (!pcmcia_loop_config(link, bt3c_check_config_notpicky, NULL)) goto found_port; BT_ERR("No usable port range found"); goto failed; found_port: i = pcmcia_request_irq(link, &bt3c_interrupt); if (i != 0) goto failed; i = pcmcia_enable_device(link); if (i != 0) goto failed; if (bt3c_open(info) != 0) goto failed; return 0; failed: bt3c_release(link); return -ENODEV; } static void bt3c_release(struct pcmcia_device *link) { struct bt3c_info *info = link->priv; bt3c_close(info); pcmcia_disable_device(link); } static const struct pcmcia_device_id bt3c_ids[] = { PCMCIA_DEVICE_PROD_ID13("3COM", "Bluetooth PC Card", 0xefce0a31, 0xd4ce9b02), PCMCIA_DEVICE_NULL }; MODULE_DEVICE_TABLE(pcmcia, bt3c_ids); static struct pcmcia_driver bt3c_driver = { .owner = THIS_MODULE, .name = "bt3c_cs", .probe = bt3c_probe, .remove = bt3c_detach, .id_table = bt3c_ids, }; module_pcmcia_driver(bt3c_driver);
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