mirror of https://github.com/hak5/openwrt-owl.git
103 lines
2.8 KiB
Diff
103 lines
2.8 KiB
Diff
--- a/drivers/char/cs5535_gpio.c
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+++ b/drivers/char/cs5535_gpio.c
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@@ -15,6 +15,7 @@
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/cdev.h>
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+#include <linux/device.h>
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#include <linux/ioport.h>
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#include <linux/pci.h>
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#include <linux/smp_lock.h>
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@@ -48,6 +49,7 @@ static struct pci_device_id divil_pci[]
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MODULE_DEVICE_TABLE(pci, divil_pci);
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static struct cdev cs5535_gpio_cdev;
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+static struct class *cs5535_gpio_class;
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/* reserve 32 entries even though some aren't usable */
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#define CS5535_GPIO_COUNT 32
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@@ -66,9 +68,14 @@ static struct gpio_regmap rm[] =
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{ 0x30, 0x00, '1', '0' }, /* GPIOx_READ_BACK / GPIOx_OUT_VAL */
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{ 0x20, 0x20, 'I', 'i' }, /* GPIOx_IN_EN */
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{ 0x04, 0x04, 'O', 'o' }, /* GPIOx_OUT_EN */
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+ { 0x10, 0x10, 'A', 'a' }, /* GPIOx_OUT_AUX1_SEL */
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+ { 0x14, 0x14, 'B', 'b' }, /* GPIOx_OUT_AUX2_SEL */
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{ 0x08, 0x08, 't', 'T' }, /* GPIOx_OUT_OD_EN */
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{ 0x18, 0x18, 'P', 'p' }, /* GPIOx_OUT_PU_EN */
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{ 0x1c, 0x1c, 'D', 'd' }, /* GPIOx_OUT_PD_EN */
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+ { 0x24, 0x24, 'N', 'n' }, /* GPIOx_IN_INV_EN */
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+ { 0x0c, 0x0c, 'X', 'x' }, /* GPIOx_OUT_INV_EN */
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+ { 0x00, 0x00, 'H', 'L' }, /* GPIOx_OUT_VAL */
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};
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@@ -177,7 +184,7 @@ static int __init cs5535_gpio_init(void)
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{
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dev_t dev_id;
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u32 low, hi;
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- int retval;
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+ int retval, i;
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if (pci_dev_present(divil_pci) == 0) {
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printk(KERN_WARNING NAME ": DIVIL not found\n");
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@@ -232,23 +239,54 @@ static int __init cs5535_gpio_init(void)
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major = MAJOR(dev_id);
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}
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- if (retval) {
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- release_region(gpio_base, CS5535_GPIO_SIZE);
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- return -1;
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- }
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+ if (retval)
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+ goto error;
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printk(KERN_DEBUG NAME ": base=%#x mask=%#lx major=%d\n",
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gpio_base, mask, major);
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cdev_init(&cs5535_gpio_cdev, &cs5535_gpio_fops);
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- cdev_add(&cs5535_gpio_cdev, dev_id, CS5535_GPIO_COUNT);
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+ retval = cdev_add(&cs5535_gpio_cdev, dev_id, CS5535_GPIO_COUNT);
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+ if (retval) {
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+ kobject_put(&cs5535_gpio_cdev.kobj);
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+ goto error_region;
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+ }
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+
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+ cs5535_gpio_class = class_create(THIS_MODULE, "cs5535_gpio");
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+ if (IS_ERR(cs5535_gpio_class)) {
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+ printk(KERN_ERR "Error creating cs5535_gpio class\n");
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+ cdev_del(&cs5535_gpio_cdev);
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+ retval = PTR_ERR(cs5535_gpio_class);
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+ goto error_region;
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+ }
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+
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+ for (i = 0; i < CS5535_GPIO_COUNT; i++) {
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+ if (mask & (1<<i)) {
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+ device_create(cs5535_gpio_class, NULL, MKDEV(major, i), NULL, "cs5535_gpio%d", i);
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+ }
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+ }
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return 0;
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+
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+error_region:
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+ unregister_chrdev_region(dev_id, CS5535_GPIO_COUNT);
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+error:
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+ release_region(gpio_base, CS5535_GPIO_SIZE);
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+ return retval;
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}
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static void __exit cs5535_gpio_cleanup(void)
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{
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dev_t dev_id = MKDEV(major, 0);
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+ int i;
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+
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+ for (i = 0; i < CS5535_GPIO_COUNT; i++) {
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+ if (mask & (1<<i)) {
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+ device_destroy(cs5535_gpio_class, MKDEV(major, i));
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+ }
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+ }
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+
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+ class_destroy(cs5535_gpio_class);
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cdev_del(&cs5535_gpio_cdev);
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unregister_chrdev_region(dev_id, CS5535_GPIO_COUNT);
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