cs89x0.c (8dd06ef34b6e2f41b29fbf5fc1663780f2524285) cs89x0.c (47fd22f2b84765a2f7e3f150282497b902624547)
1/* cs89x0.c: A Crystal Semiconductor (Now Cirrus Logic) CS89[02]0
2 * driver for linux.
3 * Written 1996 by Russell Nelson, with reference to skeleton.c
4 * written 1993-1994 by Donald Becker.
5 *
6 * This software may be used and distributed according to the terms
7 * of the GNU General Public License, incorporated herein by reference.
8 *

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99 * The CLPS eval board has the Cirrus chip at 0x80090300, in ARM IO space,
100 * but it is possible that a Cirrus board could be plugged into the ISA
101 * slots.
102 */
103/* The cs8900 has 4 IRQ pins, software selectable. cs8900_irq_map maps
104 * them to system IRQ numbers. This mapping is card specific and is set to
105 * the configuration of the Cirrus Eval board for this chip.
106 */
1/* cs89x0.c: A Crystal Semiconductor (Now Cirrus Logic) CS89[02]0
2 * driver for linux.
3 * Written 1996 by Russell Nelson, with reference to skeleton.c
4 * written 1993-1994 by Donald Becker.
5 *
6 * This software may be used and distributed according to the terms
7 * of the GNU General Public License, incorporated herein by reference.
8 *

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99 * The CLPS eval board has the Cirrus chip at 0x80090300, in ARM IO space,
100 * but it is possible that a Cirrus board could be plugged into the ISA
101 * slots.
102 */
103/* The cs8900 has 4 IRQ pins, software selectable. cs8900_irq_map maps
104 * them to system IRQ numbers. This mapping is card specific and is set to
105 * the configuration of the Cirrus Eval board for this chip.
106 */
107#ifndef CONFIG_CS89x0_PLATFORM
107#if IS_ENABLED(CONFIG_CS89x0_ISA)
108static unsigned int netcard_portlist[] __used __initdata = {
109 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240,
110 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0
111};
112static unsigned int cs8900_irq_map[] = {
113 10, 11, 12, 5
114};
115#endif

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287}
288
289static void
290write_irq(struct net_device *dev, int chip_type, int irq)
291{
292 int i;
293
294 if (chip_type == CS8900) {
108static unsigned int netcard_portlist[] __used __initdata = {
109 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240,
110 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0
111};
112static unsigned int cs8900_irq_map[] = {
113 10, 11, 12, 5
114};
115#endif

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287}
288
289static void
290write_irq(struct net_device *dev, int chip_type, int irq)
291{
292 int i;
293
294 if (chip_type == CS8900) {
295#ifndef CONFIG_CS89x0_PLATFORM
295#if IS_ENABLED(CONFIG_CS89x0_ISA)
296 /* Search the mapping table for the corresponding IRQ pin. */
297 for (i = 0; i != ARRAY_SIZE(cs8900_irq_map); i++)
298 if (cs8900_irq_map[i] == irq)
299 break;
300 /* Not found */
301 if (i == ARRAY_SIZE(cs8900_irq_map))
302 i = 3;
303#else

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854
855 if (i >= CS8920_NO_INTS) {
856 writereg(dev, PP_BusCTL, 0); /* disable interrupts. */
857 pr_err("can't get an interrupt\n");
858 ret = -EAGAIN;
859 goto bad_out;
860 }
861 } else {
296 /* Search the mapping table for the corresponding IRQ pin. */
297 for (i = 0; i != ARRAY_SIZE(cs8900_irq_map); i++)
298 if (cs8900_irq_map[i] == irq)
299 break;
300 /* Not found */
301 if (i == ARRAY_SIZE(cs8900_irq_map))
302 i = 3;
303#else

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854
855 if (i >= CS8920_NO_INTS) {
856 writereg(dev, PP_BusCTL, 0); /* disable interrupts. */
857 pr_err("can't get an interrupt\n");
858 ret = -EAGAIN;
859 goto bad_out;
860 }
861 } else {
862#if !defined(CONFIG_CS89x0_PLATFORM)
862#if IS_ENABLED(CONFIG_CS89x0_ISA)
863 if (((1 << dev->irq) & lp->irq_map) == 0) {
864 pr_err("%s: IRQ %d is not in our map of allowable IRQs, which is %x\n",
865 dev->name, dev->irq, lp->irq_map);
866 ret = -EAGAIN;
867 goto bad_out;
868 }
869#endif
870/* FIXME: Cirrus' release had this: */

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1518 if (lp->chip_type != CS8900 &&
1519 /* Check if the ISA IRQ has been set */
1520 (i = readreg(dev, PP_CS8920_ISAINT) & 0xff,
1521 (i != 0 && i < CS8920_NO_INTS))) {
1522 if (!dev->irq)
1523 dev->irq = i;
1524 } else {
1525 i = lp->isa_config & INT_NO_MASK;
863 if (((1 << dev->irq) & lp->irq_map) == 0) {
864 pr_err("%s: IRQ %d is not in our map of allowable IRQs, which is %x\n",
865 dev->name, dev->irq, lp->irq_map);
866 ret = -EAGAIN;
867 goto bad_out;
868 }
869#endif
870/* FIXME: Cirrus' release had this: */

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1518 if (lp->chip_type != CS8900 &&
1519 /* Check if the ISA IRQ has been set */
1520 (i = readreg(dev, PP_CS8920_ISAINT) & 0xff,
1521 (i != 0 && i < CS8920_NO_INTS))) {
1522 if (!dev->irq)
1523 dev->irq = i;
1524 } else {
1525 i = lp->isa_config & INT_NO_MASK;
1526#ifndef CONFIG_CS89x0_PLATFORM
1526#if IS_ENABLED(CONFIG_CS89x0_ISA)
1527 if (lp->chip_type == CS8900) {
1528 /* Translate the IRQ using the IRQ mapping table. */
1529 if (i >= ARRAY_SIZE(cs8900_irq_map))
1530 pr_err("invalid ISA interrupt number %d\n", i);
1531 else
1532 i = cs8900_irq_map[i];
1533
1534 lp->irq_map = CS8900_IRQ_MAP; /* fixed IRQ map for CS8900 */

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1571 goto out2;
1572 return 0;
1573out2:
1574 iowrite16(PP_ChipID, lp->virt_addr + ADD_PORT);
1575out1:
1576 return retval;
1577}
1578
1527 if (lp->chip_type == CS8900) {
1528 /* Translate the IRQ using the IRQ mapping table. */
1529 if (i >= ARRAY_SIZE(cs8900_irq_map))
1530 pr_err("invalid ISA interrupt number %d\n", i);
1531 else
1532 i = cs8900_irq_map[i];
1533
1534 lp->irq_map = CS8900_IRQ_MAP; /* fixed IRQ map for CS8900 */

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1571 goto out2;
1572 return 0;
1573out2:
1574 iowrite16(PP_ChipID, lp->virt_addr + ADD_PORT);
1575out1:
1576 return retval;
1577}
1578
1579#ifndef CONFIG_CS89x0_PLATFORM
1579#if IS_ENABLED(CONFIG_CS89x0_ISA)
1580/*
1581 * This function converts the I/O port address used by the cs89x0_probe() and
1582 * init_module() functions to the I/O memory address used by the
1583 * cs89x0_probe1() function.
1584 */
1585static int __init
1586cs89x0_ioport_probe(struct net_device *dev, unsigned long ioport, int modular)
1587{

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1677 if (err)
1678 goto out;
1679 return dev;
1680out:
1681 free_netdev(dev);
1682 pr_warn("no cs8900 or cs8920 detected. Be sure to disable PnP with SETUP\n");
1683 return ERR_PTR(err);
1684}
1580/*
1581 * This function converts the I/O port address used by the cs89x0_probe() and
1582 * init_module() functions to the I/O memory address used by the
1583 * cs89x0_probe1() function.
1584 */
1585static int __init
1586cs89x0_ioport_probe(struct net_device *dev, unsigned long ioport, int modular)
1587{

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1677 if (err)
1678 goto out;
1679 return dev;
1680out:
1681 free_netdev(dev);
1682 pr_warn("no cs8900 or cs8920 detected. Be sure to disable PnP with SETUP\n");
1683 return ERR_PTR(err);
1684}
1685#endif
1686#endif
1687
1688#if defined(MODULE) && !defined(CONFIG_CS89x0_PLATFORM)
1689
1685#else
1690static struct net_device *dev_cs89x0;
1691
1692/* Support the 'debug' module parm even if we're compiled for non-debug to
1693 * avoid breaking someone's startup scripts
1694 */
1695
1696static int io;
1697static int irq;

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1754 * media type specified is supported (circuitry is present)
1755 * if memory address is > 1MB, then required mem decode hw is present
1756 * if 10B-2, then agent other than driver will enable DC/DC converter
1757 * (hw or software util)
1758 */
1759
1760int __init init_module(void)
1761{
1686static struct net_device *dev_cs89x0;
1687
1688/* Support the 'debug' module parm even if we're compiled for non-debug to
1689 * avoid breaking someone's startup scripts
1690 */
1691
1692static int io;
1693static int irq;

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1750 * media type specified is supported (circuitry is present)
1751 * if memory address is > 1MB, then required mem decode hw is present
1752 * if 10B-2, then agent other than driver will enable DC/DC converter
1753 * (hw or software util)
1754 */
1755
1756int __init init_module(void)
1757{
1762 struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
1758 struct net_device *dev;
1763 struct net_local *lp;
1764 int ret = 0;
1765
1766#if DEBUGGING
1767 net_debug = debug;
1768#else
1769 debug = 0;
1770#endif
1759 struct net_local *lp;
1760 int ret = 0;
1761
1762#if DEBUGGING
1763 net_debug = debug;
1764#else
1765 debug = 0;
1766#endif
1767 dev = alloc_etherdev(sizeof(struct net_local));
1771 if (!dev)
1772 return -ENOMEM;
1773
1774 dev->irq = irq;
1775 dev->base_addr = io;
1776 lp = netdev_priv(dev);
1777
1778#if ALLOW_DMA

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1833 struct net_local *lp = netdev_priv(dev_cs89x0);
1834
1835 unregister_netdev(dev_cs89x0);
1836 iowrite16(PP_ChipID, lp->virt_addr + ADD_PORT);
1837 ioport_unmap(lp->virt_addr);
1838 release_region(dev_cs89x0->base_addr, NETCARD_IO_EXTENT);
1839 free_netdev(dev_cs89x0);
1840}
1768 if (!dev)
1769 return -ENOMEM;
1770
1771 dev->irq = irq;
1772 dev->base_addr = io;
1773 lp = netdev_priv(dev);
1774
1775#if ALLOW_DMA

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1830 struct net_local *lp = netdev_priv(dev_cs89x0);
1831
1832 unregister_netdev(dev_cs89x0);
1833 iowrite16(PP_ChipID, lp->virt_addr + ADD_PORT);
1834 ioport_unmap(lp->virt_addr);
1835 release_region(dev_cs89x0->base_addr, NETCARD_IO_EXTENT);
1836 free_netdev(dev_cs89x0);
1837}
1841#endif /* MODULE && !CONFIG_CS89x0_PLATFORM */
1838#endif /* MODULE */
1839#endif /* CONFIG_CS89x0_ISA */
1842
1840
1843#ifdef CONFIG_CS89x0_PLATFORM
1841#if IS_ENABLED(CONFIG_CS89x0_PLATFORM)
1844static int __init cs89x0_platform_probe(struct platform_device *pdev)
1845{
1846 struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
1847 void __iomem *virt_addr;
1848 int err;
1849
1850 if (!dev)
1851 return -ENOMEM;

--- 63 unchanged lines hidden --- 		1842static int __init cs89x0_platform_probe(struct platform_device *pdev)
1843{
1844 struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
1845 void __iomem *virt_addr;
1846 int err;
1847
1848 if (!dev)
1849 return -ENOMEM;

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