arch/arm/mach-pxa/htcuniversal/htcuniversal_udc.c

   1
   2 /*
   3  *
   4  * htcuniversal_udc.c:
   5  * htcuniversal specific code for the pxa27x usb device controller.
   6  *
   7  * Use consistent with the GNU GPL is permitted.
   8  *
   9  */
  10
  11 #include <linux/module.h>
  12 #include <linux/init.h>
  13 #include <linux/platform_device.h>
  14 #include <asm/arch/hardware.h>
  15 #include <asm/arch/pxa-regs.h>
  16 #include <asm/arch/udc.h>
  17 #include <linux/soc/asic3_base.h>
  18 #include <asm/arch/htcuniversal-gpio.h>
  19 #include <asm/arch/htcuniversal-asic.h>
  20
  21 static void htcuniversal_udc_command(int cmd)
  22 {
  23         switch (cmd) {
  24         case PXA2XX_UDC_CMD_DISCONNECT:
  25                 asic3_set_gpio_out_b(&htcuniversal_asic3.dev,
  26                                            1<<GPIOB_USB_PUEN, 0);
  27 //              SET_HTCUNIVERSAL_GPIO(USB_PUEN,0);
  28                 break;
  29         case PXA2XX_UDC_CMD_CONNECT:
  30                 asic3_set_gpio_out_b(&htcuniversal_asic3.dev,
  31                                            1<<GPIOB_USB_PUEN,  1<<GPIOB_USB_PUEN);
  32 //              SET_HTCUNIVERSAL_GPIO(USB_PUEN,1);
  33                 break;
  34         default:
  35                 printk("_udc_control: unknown command!\n");
  36                 break;
  37         }
  38 }
  39
  40 static int htcuniversal_udc_is_connected(void)
  41 {
  42         return (GET_HTCUNIVERSAL_GPIO(USB_DET) != 0);
  43 }
  44
  45 static struct pxa2xx_udc_mach_info htcuniversal_udc_info __initdata = {
  46         .udc_is_connected = htcuniversal_udc_is_connected,
  47         .udc_command      = htcuniversal_udc_command,
  48 };
  49
  50 static int htcuniversal_udc_probe(struct platform_device * dev)
  51 {
  52         pxa_set_udc_info(&htcuniversal_udc_info);
  53         return 0;
  54 }
  55
  56 static struct platform_driver htcuniversal_udc_driver = {
  57         .driver   = {
  58                 .name     = "htcuniversal_udc",
  59         },
  60         .probe    = htcuniversal_udc_probe,
  61 };
  62
  63 static int __init htcuniversal_udc_init(void)
  64 {
  65         return platform_driver_register(&htcuniversal_udc_driver);
  66 }
  67
  68 module_init(htcuniversal_udc_init);
  69 MODULE_LICENSE("GPL");