arch/arm/mach-pxa/htcbeetles/htcbeetles_udc.c

   1 /*
   2  * htcbeetles_udc.c:
   3  * htcbeetles specific code for the pxa27x usb device controller.
   4  *
   5  *
   6  */
   7
   8 #include <linux/module.h>
   9 #include <linux/init.h>
  10 #include <linux/platform_device.h>
  11 #include <asm/arch/hardware.h>
  12 #include <asm/arch/pxa-regs.h>
  13 #include <asm/arch/udc.h>
  14 #include <linux/soc/asic3_base.h>
  15 #include <asm/arch/htcbeetles-gpio.h>
  16 #include <asm/arch/htcbeetles-asic.h>
  17
  18 extern struct platform_device htcbeetles_asic3;
  19
  20 static void htcbeetles_udc_command(int cmd)
  21 {
  22         switch (cmd) {
  23         case PXA2XX_UDC_CMD_DISCONNECT:
  24                 asic3_set_gpio_out_a(&htcbeetles_asic3.dev,
  25                                            1<<GPIOA_USB_PUEN, 0);
  26                 break;
  27         case PXA2XX_UDC_CMD_CONNECT:
  28                 asic3_set_gpio_out_a(&htcbeetles_asic3.dev,
  29                                            1<<GPIOA_USB_PUEN,  1<<GPIOA_USB_PUEN);
  30                 break;
  31         default:
  32                 printk("_udc_control: unknown command!\n");
  33                 break;
  34         }
  35 }
  36
  37 static int htcbeetles_udc_is_connected(void)
  38 {
  39  return ((asic3_get_gpio_status_a(&htcbeetles_asic3.dev) & (1<<GPIOB_USB_DETECT)) != 0);
  40 }
  41
  42 static struct pxa2xx_udc_mach_info htcbeetles_udc_info __initdata = {
  43         .udc_is_connected = htcbeetles_udc_is_connected,
  44         .udc_command      = htcbeetles_udc_command,
  45 };
  46
  47 static int htcbeetles_udc_probe(struct device * dev)
  48 {
  49         pxa_set_udc_info(&htcbeetles_udc_info);
  50         return 0;
  51 }
  52
  53 static struct device_driver htcbeetles_udc_driver = {
  54         .name     = "htcbeetles_udc",
  55         .bus      = &platform_bus_type,
  56         .probe    = htcbeetles_udc_probe,
  57 };
  58
  59 static int __init htcbeetles_udc_init(void)
  60 {
  61         return driver_register(&htcbeetles_udc_driver);
  62 }
  63
  64 module_init(htcbeetles_udc_init);
  65 MODULE_LICENSE("GPL");
  66