--- linux/drivers/char/Makefile 2002-12-10 20:22:56.000000000 +0000 +++ linux/drivers/char/Makefile 2002-12-10 20:22:01.000000000 +0000 @@ -254,7 +254,7 @@ obj-$(CONFIG_DZ) += dz.o obj-$(CONFIG_NWBUTTON) += nwbutton.o obj-$(CONFIG_NWFLASH) += nwflash.o -obj-$(CONFIG_SCx200_GPIO) += scx200_gpio.o +obj-$(CONFIG_SCx200_GPIO) += scx200_gpio.o scx200.o # Only one watchdog can succeed. We probe the hardware watchdog # drivers first, then the softdog driver. This means if your hardware --- linux/drivers/char/scx200.c 1970-01-01 00:00:00.000000000 +0000 +++ linux/drivers/char/scx200.c 2002-12-10 20:22:10.000000000 +0000 @@ -0,0 +1,128 @@ +/* linux/drivers/char/scx200.c + + Copyright (c) 2001,2002 Christer Weinigel + + National Semiconductor SCx200 support. */ + +#include +#include +#include +#include +#include +#include + +#include +#include + +#define NAME "scx200" + +MODULE_AUTHOR("Christer Weinigel "); +MODULE_DESCRIPTION("NatSemi SCx200 Driver"); +MODULE_LICENSE("GPL"); + +unsigned scx200_gpio_base = 0; +long scx200_gpio_shadow[2]; + +spinlock_t scx200_gpio_lock = SPIN_LOCK_UNLOCKED; +static spinlock_t scx200_gpio_config_lock = SPIN_LOCK_UNLOCKED; + +u32 scx200_gpio_configure(int index, u32 mask, u32 bits) +{ + u32 config, new_config; + unsigned long flags; + + spin_lock_irqsave(&scx200_gpio_config_lock, flags); + + outl(index, scx200_gpio_base + 0x20); + config = inl(scx200_gpio_base + 0x24); + + new_config = (config & mask) | bits; + outl(new_config, scx200_gpio_base + 0x24); + + spin_unlock_irqrestore(&scx200_gpio_config_lock, flags); + + return config; +} + +void scx200_gpio_dump(unsigned index) +{ + u32 config = scx200_gpio_configure(index, ~0, 0); + printk(KERN_DEBUG "GPIO%02u: 0x%08lx", index, (unsigned long)config); + + if (config & 1) + printk(" OE"); /* output enabled */ + else + printk(" TS"); /* tristate */ + if (config & 2) + printk(" PP"); /* push pull */ + else + printk(" OD"); /* open drain */ + if (config & 4) + printk(" PUE"); /* pull up enabled */ + else + printk(" PUD"); /* pull up disabled */ + if (config & 8) + printk(" LOCKED"); /* locked */ + if (config & 16) + printk(" LEVEL"); /* level input */ + else + printk(" EDGE"); /* edge input */ + if (config & 32) + printk(" HI"); /* trigger on rising edge */ + else + printk(" LO"); /* trigger on falling edge */ + if (config & 64) + printk(" DEBOUNCE"); /* debounce */ + printk("\n"); +} + +int __init scx200_init(void) +{ + struct pci_dev *bridge; + int bank; + unsigned base; + + printk(KERN_INFO NAME ": NatSemi SCx200 Driver\n"); + + if ((bridge = pci_find_device(PCI_VENDOR_ID_NS, + PCI_DEVICE_ID_NS_SCx200_BRIDGE, + NULL)) == NULL) + return -ENODEV; + + base = pci_resource_start(bridge, 0); + printk(KERN_INFO NAME ": GPIO base 0x%x\n", base); + + if (request_region(base, SCx200_GPIO_SIZE, "NatSemi SCx200 GPIO") == 0) { + printk(KERN_ERR NAME ": can't allocate I/O for GPIOs\n"); + return -EBUSY; + } + + scx200_gpio_base = base; + + /* read the current values driven on the GPIO signals */ + for (bank = 0; bank < 2; ++bank) + scx200_gpio_shadow[bank] = inl(scx200_gpio_base + 0x10 * bank); + + return 0; +} + +void __exit scx200_cleanup(void) +{ + release_region(scx200_gpio_base, SCx200_GPIO_SIZE); +} + +module_init(scx200_init); +module_exit(scx200_cleanup); + +EXPORT_SYMBOL(scx200_gpio_base); +EXPORT_SYMBOL(scx200_gpio_shadow); +EXPORT_SYMBOL(scx200_gpio_lock); +EXPORT_SYMBOL(scx200_gpio_configure); +EXPORT_SYMBOL(scx200_gpio_dump); + +/* + Local variables: + compile-command: "make -k -C ../../.. SUBDIRS=arch/i386/kernel modules" + c-basic-offset: 8 + End: +*/ --- linux/arch/i386/kernel/scx200.c 1970-01-01 00:00:00.000000000 +0000 +++ linux/arch/i386/kernel/scx200.c 2002-12-10 20:22:10.000000000 +0000 @@ -1,128 +0,0 @@ -/* linux/arch/i386/kernel/scx200.c - - Copyright (c) 2001,2002 Christer Weinigel - - National Semiconductor SCx200 support. */ - -#include -#include -#include -#include -#include -#include - -#include -#include - -#define NAME "scx200" - -MODULE_AUTHOR("Christer Weinigel "); -MODULE_DESCRIPTION("NatSemi SCx200 Driver"); -MODULE_LICENSE("GPL"); - -unsigned scx200_gpio_base = 0; -long scx200_gpio_shadow[2]; - -spinlock_t scx200_gpio_lock = SPIN_LOCK_UNLOCKED; -static spinlock_t scx200_gpio_config_lock = SPIN_LOCK_UNLOCKED; - -u32 scx200_gpio_configure(int index, u32 mask, u32 bits) -{ - u32 config, new_config; - unsigned long flags; - - spin_lock_irqsave(&scx200_gpio_config_lock, flags); - - outl(index, scx200_gpio_base + 0x20); - config = inl(scx200_gpio_base + 0x24); - - new_config = (config & mask) | bits; - outl(new_config, scx200_gpio_base + 0x24); - - spin_unlock_irqrestore(&scx200_gpio_config_lock, flags); - - return config; -} - -void scx200_gpio_dump(unsigned index) -{ - u32 config = scx200_gpio_configure(index, ~0, 0); - printk(KERN_DEBUG "GPIO%02u: 0x%08lx", index, (unsigned long)config); - - if (config & 1) - printk(" OE"); /* output enabled */ - else - printk(" TS"); /* tristate */ - if (config & 2) - printk(" PP"); /* push pull */ - else - printk(" OD"); /* open drain */ - if (config & 4) - printk(" PUE"); /* pull up enabled */ - else - printk(" PUD"); /* pull up disabled */ - if (config & 8) - printk(" LOCKED"); /* locked */ - if (config & 16) - printk(" LEVEL"); /* level input */ - else - printk(" EDGE"); /* edge input */ - if (config & 32) - printk(" HI"); /* trigger on rising edge */ - else - printk(" LO"); /* trigger on falling edge */ - if (config & 64) - printk(" DEBOUNCE"); /* debounce */ - printk("\n"); -} - -int __init scx200_init(void) -{ - struct pci_dev *bridge; - int bank; - unsigned base; - - printk(KERN_INFO NAME ": NatSemi SCx200 Driver\n"); - - if ((bridge = pci_find_device(PCI_VENDOR_ID_NS, - PCI_DEVICE_ID_NS_SCx200_BRIDGE, - NULL)) == NULL) - return -ENODEV; - - base = pci_resource_start(bridge, 0); - printk(KERN_INFO NAME ": GPIO base 0x%x\n", base); - - if (request_region(base, SCx200_GPIO_SIZE, "NatSemi SCx200 GPIO") == 0) { - printk(KERN_ERR NAME ": can't allocate I/O for GPIOs\n"); - return -EBUSY; - } - - scx200_gpio_base = base; - - /* read the current values driven on the GPIO signals */ - for (bank = 0; bank < 2; ++bank) - scx200_gpio_shadow[bank] = inl(scx200_gpio_base + 0x10 * bank); - - return 0; -} - -void __exit scx200_cleanup(void) -{ - release_region(scx200_gpio_base, SCx200_GPIO_SIZE); -} - -module_init(scx200_init); -module_exit(scx200_cleanup); - -EXPORT_SYMBOL(scx200_gpio_base); -EXPORT_SYMBOL(scx200_gpio_shadow); -EXPORT_SYMBOL(scx200_gpio_lock); -EXPORT_SYMBOL(scx200_gpio_configure); -EXPORT_SYMBOL(scx200_gpio_dump); - -/* - Local variables: - compile-command: "make -k -C ../../.. SUBDIRS=arch/i386/kernel modules" - c-basic-offset: 8 - End: -*/