[PATCH] char/isicom: Pci probing added
Pci probing functions added, most of functions rewrited because of it (some for loops were redundant). Used PCI_DEVICE macro. dev_* used for printing wherever possible. Renamed some functions to have isicom_ in the name. Signed-off-by: Jiri Slaby <xslaby@fi.muni.cz> Signed-off-by: Laurent Riffard <laurent.riffard@free.fr> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>hifive-unleashed-5.1
Jiri Slaby
Linus Torvalds
parent
aaa246ea78
commit
9ac0948b20
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@ -107,7 +107,6 @@
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* Omit those entries for boards you don't have installed.
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*
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* TODO
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* Hotplug
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* Merge testing
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* 64-bit verification
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*/
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@ -146,20 +145,30 @@
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#define isicom_paranoia_check(a, b, c) 0
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#endif
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static int isicom_probe(struct pci_dev *, const struct pci_device_id *);
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static void __devexit isicom_remove(struct pci_dev *);
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static struct pci_device_id isicom_pci_tbl[] = {
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{ VENDOR_ID, 0x2028, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ VENDOR_ID, 0x2051, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ VENDOR_ID, 0x2052, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ VENDOR_ID, 0x2053, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ VENDOR_ID, 0x2054, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ VENDOR_ID, 0x2055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ VENDOR_ID, 0x2056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ VENDOR_ID, 0x2057, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ VENDOR_ID, 0x2058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ PCI_DEVICE(VENDOR_ID, 0x2028) },
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{ PCI_DEVICE(VENDOR_ID, 0x2051) },
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{ PCI_DEVICE(VENDOR_ID, 0x2052) },
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{ PCI_DEVICE(VENDOR_ID, 0x2053) },
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{ PCI_DEVICE(VENDOR_ID, 0x2054) },
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{ PCI_DEVICE(VENDOR_ID, 0x2055) },
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{ PCI_DEVICE(VENDOR_ID, 0x2056) },
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{ PCI_DEVICE(VENDOR_ID, 0x2057) },
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{ PCI_DEVICE(VENDOR_ID, 0x2058) },
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{ 0 }
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};
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MODULE_DEVICE_TABLE(pci, isicom_pci_tbl);
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static struct pci_driver isicom_driver = {
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.name = "isicom",
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.id_table = isicom_pci_tbl,
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.probe = isicom_probe,
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.remove = __devexit_p(isicom_remove)
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};
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static int prev_card = 3; /* start servicing isi_card[0] */
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static struct tty_driver *isicom_normal;
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@ -171,8 +180,6 @@ static int ISILoad_ioctl(struct inode *inode, struct file *filp, unsigned int c
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static void isicom_tx(unsigned long _data);
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static void isicom_start(struct tty_struct *tty);
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static unsigned char *tmp_buf;
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/* baud index mappings from linux defns to isi */
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static signed char linuxb_to_isib[] = {
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@ -1365,7 +1372,7 @@ static int isicom_write(struct tty_struct *tty, const unsigned char *buf,
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if (isicom_paranoia_check(port, tty->name, "isicom_write"))
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return 0;
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if (!tty || !port->xmit_buf || !tmp_buf)
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if (!tty || !port->xmit_buf)
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return 0;
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spin_lock_irqsave(&card->card_lock, flags);
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@ -1731,32 +1738,39 @@ static void isicom_flush_buffer(struct tty_struct *tty)
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tty_wakeup(tty);
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}
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/*
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* Driver init and deinit functions
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*/
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static int __devinit register_ioregion(void)
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static int __devinit isicom_register_ioregion(struct pci_dev *pdev,
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const unsigned int index)
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{
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int count, done=0;
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for (count=0; count < BOARD_COUNT; count++ ) {
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if (isi_card[count].base)
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if (!request_region(isi_card[count].base,16,ISICOM_NAME)) {
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printk(KERN_DEBUG "ISICOM: I/O Region 0x%lx-0x%lx is busy. Card%d will be disabled.\n",
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isi_card[count].base,isi_card[count].base+15,count+1);
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isi_card[count].base=0;
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done++;
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}
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}
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return done;
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struct isi_board *board = pci_get_drvdata(pdev);
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if (!board->base)
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return -EINVAL;
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if (!request_region(board->base, 16, ISICOM_NAME)) {
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dev_dbg(&pdev->dev, "I/O Region 0x%lx-0x%lx is busy. Card%d "
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"will be disabled.\n", board->base, board->base + 15,
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index + 1);
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return -EBUSY;
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}
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return 0;
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}
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static void unregister_ioregion(void)
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static void isicom_unregister_ioregion(struct pci_dev *pdev)
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{
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int count;
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for (count=0; count < BOARD_COUNT; count++ )
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if (isi_card[count].base) {
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release_region(isi_card[count].base,16);
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#ifdef ISICOM_DEBUG
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printk(KERN_DEBUG "ISICOM: I/O Region 0x%lx-0x%lx released for Card%d.\n",isi_card[count].base,isi_card[count].base+15,count+1);
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#endif
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}
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struct isi_board *board = pci_get_drvdata(pdev);
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if (!board->base)
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return;
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release_region(board->base, 16);
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dev_dbg(&pdev->dev, "I/O Region 0x%lx-0x%lx released.\n",
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board->base, board->base + 15);
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board->base = 0;
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}
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static struct tty_operations isicom_ops = {
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@ -1820,95 +1834,182 @@ static void isicom_unregister_tty_driver(void)
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put_tty_driver(isicom_normal);
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}
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static int __devinit register_isr(void)
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static int __devinit isicom_register_isr(struct pci_dev *pdev,
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const unsigned int index)
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{
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int count, done=0;
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unsigned long irqflags;
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struct isi_board *board = pci_get_drvdata(pdev);
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unsigned long irqflags = SA_INTERRUPT;
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int retval = -EINVAL;
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for (count=0; count < BOARD_COUNT; count++ ) {
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if (isi_card[count].base) {
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irqflags = (isi_card[count].isa == YES) ?
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SA_INTERRUPT :
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(SA_INTERRUPT | SA_SHIRQ);
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if (!board->base)
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goto end;
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if (request_irq(isi_card[count].irq,
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isicom_interrupt,
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irqflags,
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ISICOM_NAME, &isi_card[count])) {
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if (board->isa == NO)
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irqflags |= SA_SHIRQ;
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printk(KERN_WARNING "ISICOM: Could not"
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" install handler at Irq %d."
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" Card%d will be disabled.\n",
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isi_card[count].irq, count+1);
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retval = request_irq(board->irq, isicom_interrupt, irqflags,
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ISICOM_NAME, board);
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if (retval < 0)
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dev_warn(&pdev->dev, "Could not install handler at Irq %d. "
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"Card%d will be disabled.\n", board->irq, index + 1);
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else
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retval = 0;
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end:
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return retval;
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}
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release_region(isi_card[count].base,16);
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isi_card[count].base=0;
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}
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else
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done++;
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static int __devinit reset_card(struct pci_dev *pdev,
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const unsigned int card, unsigned int *signature)
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{
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struct isi_board *board = pci_get_drvdata(pdev);
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unsigned long base = board->base;
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unsigned int portcount = 0;
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int retval = 0;
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dev_dbg(&pdev->dev, "ISILoad:Resetting Card%d at 0x%lx\n", card + 1,
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base);
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inw(base + 0x8);
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mdelay(10);
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outw(0, base + 0x8); /* Reset */
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msleep(3000);
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*signature = inw(base + 0x4) & 0xff;
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if (board->isa == YES) {
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if (!(inw(base + 0xe) & 0x1) || (inw(base + 0x2))) {
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dev_dbg(&pdev->dev, "base+0x2=0x%lx, base+0xe=0x%lx\n",
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inw(base + 0x2), inw(base + 0xe));
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dev_err(&pdev->dev, "ISILoad:ISA Card%d reset failure "
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"(Possible bad I/O Port Address 0x%lx).\n",
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card + 1, base);
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retval = -EIO;
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goto end;
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}
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} else {
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portcount = inw(base + 0x2);
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if (!(inw(base + 0xe) & 0x1) || ((portcount != 0) &&
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(portcount != 4) && (portcount != 8))) {
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dev_dbg(&pdev->dev, "base+0x2=0x%lx, base+0xe=0x%lx\n",
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inw(base + 0x2), inw(base + 0xe));
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dev_err(&pdev->dev, "ISILoad:PCI Card%d reset failure "
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"(Possible bad I/O Port Address 0x%lx).\n",
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card + 1, base);
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retval = -EIO;
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goto end;
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}
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}
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return done;
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}
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static void __exit unregister_isr(void)
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{
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int count;
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for (count=0; count < BOARD_COUNT; count++ ) {
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if (isi_card[count].base)
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free_irq(isi_card[count].irq, &isi_card[count]);
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switch (*signature) {
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case 0xa5:
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case 0xbb:
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case 0xdd:
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board->port_count = (board->isa == NO && portcount == 4) ? 4 :
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8;
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board->shift_count = 12;
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break;
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case 0xcc:
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board->port_count = 16;
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board->shift_count = 11;
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break;
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default:
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dev_warn(&pdev->dev, "ISILoad:Card%d reset failure (Possible "
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"bad I/O Port Address 0x%lx).\n", card + 1, base);
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dev_dbg(&pdev->dev, "Sig=0x%lx\n", signature);
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retval = -EIO;
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}
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dev_info(&pdev->dev, "-Done\n");
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end:
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return retval;
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}
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static int __devinit isicom_init(void)
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/*
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* Insmod can set static symbols so keep these static
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*/
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static int io[4];
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static int irq[4];
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static int card;
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static int __devinit isicom_probe(struct pci_dev *pdev,
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const struct pci_device_id *ent)
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{
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int card, channel, base;
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unsigned int ioaddr, signature, index;
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int retval = -EPERM;
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u8 pciirq;
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struct isi_board *board = NULL;
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if (card >= BOARD_COUNT)
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goto err;
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ioaddr = pci_resource_start(pdev, 3);
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/* i.e at offset 0x1c in the PCI configuration register space. */
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pciirq = pdev->irq;
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dev_info(&pdev->dev, "ISI PCI Card(Device ID 0x%x)\n", ent->device);
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/* allot the first empty slot in the array */
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for (index = 0; index < BOARD_COUNT; index++)
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if (isi_card[index].base == 0) {
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board = &isi_card[index];
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break;
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}
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board->base = ioaddr;
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board->irq = pciirq;
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board->isa = NO;
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card++;
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pci_set_drvdata(pdev, board);
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retval = isicom_register_ioregion(pdev, index);
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if (retval < 0)
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goto err;
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retval = isicom_register_isr(pdev, index);
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if (retval < 0)
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goto errunrr;
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retval = reset_card(pdev, index, &signature);
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if (retval < 0)
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goto errunri;
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return 0;
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errunri:
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free_irq(board->irq, board);
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errunrr:
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isicom_unregister_ioregion(pdev);
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err:
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board->base = 0;
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return retval;
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}
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static void __devexit isicom_remove(struct pci_dev *pdev)
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{
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struct isi_board *board = pci_get_drvdata(pdev);
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free_irq(board->irq, board);
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isicom_unregister_ioregion(pdev);
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}
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static int __devinit isicom_setup(void)
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{
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int retval, idx, channel;
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struct isi_port *port;
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unsigned long page;
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if (!tmp_buf) {
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page = get_zeroed_page(GFP_KERNEL);
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if (!page) {
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#ifdef ISICOM_DEBUG
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printk(KERN_DEBUG "ISICOM: Couldn't allocate page for tmp_buf.\n");
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#else
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printk(KERN_ERR "ISICOM: Not enough memory...\n");
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#endif
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return 0;
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}
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tmp_buf = (unsigned char *) page;
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}
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if (!register_ioregion())
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{
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printk(KERN_ERR "ISICOM: All required I/O space found busy.\n");
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free_page((unsigned long)tmp_buf);
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return 0;
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}
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if (isicom_register_tty_driver())
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{
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unregister_ioregion();
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free_page((unsigned long)tmp_buf);
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return 0;
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}
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if (!register_isr())
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{
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isicom_unregister_tty_driver();
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/* ioports already uregistered in register_isr */
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free_page((unsigned long)tmp_buf);
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return 0;
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}
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card = 0;
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memset(isi_ports, 0, sizeof(isi_ports));
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for (card = 0; card < BOARD_COUNT; card++) {
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port = &isi_ports[card * 16];
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isi_card[card].ports = port;
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spin_lock_init(&isi_card[card].card_lock);
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base = isi_card[card].base;
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for(idx = 0; idx < BOARD_COUNT; idx++) {
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port = &isi_ports[idx * 16];
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isi_card[idx].ports = port;
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spin_lock_init(&isi_card[idx].card_lock);
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for (channel = 0; channel < 16; channel++, port++) {
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port->magic = ISICOM_MAGIC;
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port->card = &isi_card[card];
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port->card = &isi_card[idx];
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port->channel = channel;
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port->close_delay = 50 * HZ/100;
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port->closing_wait = 3000 * HZ/100;
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@ -1918,109 +2019,38 @@ static int __devinit isicom_init(void)
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init_waitqueue_head(&port->open_wait);
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init_waitqueue_head(&port->close_wait);
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/* . . . */
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}
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}
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isi_card[idx].base = 0;
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isi_card[idx].irq = 0;
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if (!io[idx])
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continue;
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if (irq[idx] == 2 || irq[idx] == 3 || irq[idx] == 4 ||
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irq[idx] == 5 || irq[idx] == 7 ||
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irq[idx] == 10 || irq[idx] == 11 ||
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irq[idx] == 12 || irq[idx] == 15) {
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printk(KERN_ERR "ISICOM: ISA not supported yet.\n");
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retval = -EINVAL;
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goto error;
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} else
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printk(KERN_ERR "ISICOM: Irq %d unsupported. "
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"Disabling Card%d...\n", irq[idx], idx + 1);
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}
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return 1;
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}
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retval = isicom_register_tty_driver();
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if (retval < 0)
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goto error;
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/*
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* Insmod can set static symbols so keep these static
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*/
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static int io[4];
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static int irq[4];
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static int __devinit isicom_setup(void)
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{
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struct pci_dev *dev = NULL;
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int retval, card, idx, count;
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unsigned char pciirq;
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unsigned int ioaddr;
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card = 0;
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for (idx=0; idx < BOARD_COUNT; idx++) {
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if (io[idx]) {
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isi_card[idx].base=io[idx];
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isi_card[idx].irq=irq[idx];
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isi_card[idx].isa=YES;
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card++;
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}
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else {
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isi_card[idx].base = 0;
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isi_card[idx].irq = 0;
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}
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}
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for (idx=0 ;idx < card; idx++) {
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if (!((isi_card[idx].irq==2)||(isi_card[idx].irq==3)||
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(isi_card[idx].irq==4)||(isi_card[idx].irq==5)||
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(isi_card[idx].irq==7)||(isi_card[idx].irq==10)||
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(isi_card[idx].irq==11)||(isi_card[idx].irq==12)||
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(isi_card[idx].irq==15))) {
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if (isi_card[idx].base) {
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printk(KERN_ERR "ISICOM: Irq %d unsupported. Disabling Card%d...\n",
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isi_card[idx].irq, idx+1);
|
||||
isi_card[idx].base=0;
|
||||
card--;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (card < BOARD_COUNT) {
|
||||
for (idx=0; idx < DEVID_COUNT; idx++) {
|
||||
dev = NULL;
|
||||
for (;;){
|
||||
if (!(dev = pci_find_device(VENDOR_ID, isicom_pci_tbl[idx].device, dev)))
|
||||
break;
|
||||
if (card >= BOARD_COUNT)
|
||||
break;
|
||||
|
||||
if (pci_enable_device(dev))
|
||||
break;
|
||||
|
||||
/* found a PCI ISI card! */
|
||||
ioaddr = pci_resource_start (dev, 3);
|
||||
/* i.e at offset 0x1c in the
|
||||
* PCI configuration register
|
||||
* space.
|
||||
*/
|
||||
pciirq = dev->irq;
|
||||
printk(KERN_INFO "ISI PCI Card(Device ID 0x%x)\n", isicom_pci_tbl[idx].device);
|
||||
/*
|
||||
* allot the first empty slot in the array
|
||||
*/
|
||||
for (count=0; count < BOARD_COUNT; count++) {
|
||||
if (isi_card[count].base == 0) {
|
||||
isi_card[count].base = ioaddr;
|
||||
isi_card[count].irq = pciirq;
|
||||
isi_card[count].isa = NO;
|
||||
card++;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (card >= BOARD_COUNT) break;
|
||||
}
|
||||
}
|
||||
|
||||
if (!(isi_card[0].base || isi_card[1].base || isi_card[2].base || isi_card[3].base)) {
|
||||
printk(KERN_ERR "ISICOM: No valid card configuration. Driver cannot be initialized...\n");
|
||||
return -EIO;
|
||||
retval = pci_register_driver(&isicom_driver);
|
||||
if (retval < 0) {
|
||||
printk(KERN_ERR "ISICOM: Unable to register pci driver.\n");
|
||||
goto errtty;
|
||||
}
|
||||
|
||||
retval = misc_register(&isiloader_device);
|
||||
if (retval < 0) {
|
||||
printk(KERN_ERR "ISICOM: Unable to register firmware loader driver.\n");
|
||||
return retval;
|
||||
}
|
||||
|
||||
if (!isicom_init()) {
|
||||
if (misc_deregister(&isiloader_device))
|
||||
printk(KERN_ERR "ISICOM: Unable to unregister Firmware Loader driver\n");
|
||||
return -EIO;
|
||||
}
|
||||
if (retval < 0)
|
||||
goto errpci;
|
||||
|
||||
init_timer(&tx);
|
||||
tx.expires = jiffies + 1;
|
||||
|
|
@ -2030,6 +2060,12 @@ static int __devinit isicom_setup(void)
|
|||
add_timer(&tx);
|
||||
|
||||
return 0;
|
||||
errpci:
|
||||
pci_unregister_driver(&isicom_driver);
|
||||
errtty:
|
||||
isicom_unregister_tty_driver();
|
||||
error:
|
||||
return retval;
|
||||
}
|
||||
|
||||
static void __exit isicom_exit(void)
|
||||
|
|
@ -2041,13 +2077,8 @@ static void __exit isicom_exit(void)
|
|||
while (re_schedule != 2 && index++ < 100)
|
||||
msleep(10);
|
||||
|
||||
unregister_isr();
|
||||
pci_unregister_driver(&isicom_driver);
|
||||
isicom_unregister_tty_driver();
|
||||
unregister_ioregion();
|
||||
if (tmp_buf)
|
||||
free_page((unsigned long)tmp_buf);
|
||||
if (misc_deregister(&isiloader_device))
|
||||
printk(KERN_ERR "ISICOM: Unable to unregister Firmware Loader driver\n");
|
||||
}
|
||||
|
||||
module_init(isicom_setup);
|
||||
|
|
|
|||
Loading…
Reference in New Issue