drivers/input/serio/i8042-sparcio.h

   1 #ifndef _I8042_SPARCIO_H
   2 #define _I8042_SPARCIO_H
   3
   4 #include <linux/config.h>
   5 #include <asm/io.h>
   6
   7 #ifdef CONFIG_PCI
   8 #include <asm/oplib.h>
   9 #include <asm/ebus.h>
  10 #endif
  11
  12 static int i8042_kbd_irq = -1;
  13 static int i8042_aux_irq = -1;
  14 #define I8042_KBD_IRQ i8042_kbd_irq
  15 #define I8042_AUX_IRQ i8042_aux_irq
  16
  17 #define I8042_KBD_PHYS_DESC "sparcps2/serio0"
  18 #define I8042_AUX_PHYS_DESC "sparcps2/serio1"
  19 #define I8042_MUX_PHYS_DESC "sparcps2/serio%d"
  20
  21 static void __iomem *kbd_iobase;
  22
  23 #define I8042_COMMAND_REG       (kbd_iobase + 0x64UL)
  24 #define I8042_DATA_REG          (kbd_iobase + 0x60UL)
  25
  26 static inline int i8042_read_data(void)
  27 {
  28         return readb(kbd_iobase + 0x60UL);
  29 }
  30
  31 static inline int i8042_read_status(void)
  32 {
  33         return readb(kbd_iobase + 0x64UL);
  34 }
  35
  36 static inline void i8042_write_data(int val)
  37 {
  38         writeb(val, kbd_iobase + 0x60UL);
  39 }
  40
  41 static inline void i8042_write_command(int val)
  42 {
  43         writeb(val, kbd_iobase + 0x64UL);
  44 }
  45
  46 #define OBP_PS2KBD_NAME1        "kb_ps2"
  47 #define OBP_PS2KBD_NAME2        "keyboard"
  48 #define OBP_PS2MS_NAME1         "kdmouse"
  49 #define OBP_PS2MS_NAME2         "mouse"
  50
  51 static int __init i8042_platform_init(void)
  52 {
  53 #ifndef CONFIG_PCI
  54         return -ENODEV;
  55 #else
  56         char prop[128];
  57         int len;
  58
  59         len = prom_getproperty(prom_root_node, "name", prop, sizeof(prop));
  60         if (len < 0) {
  61                 printk("i8042: Cannot get name property of root OBP node.\n");
  62                 return -ENODEV;
  63         }
  64         if (strncmp(prop, "SUNW,JavaStation-1", len) == 0) {
  65                 /* Hardcoded values for MrCoffee.  */
  66                 i8042_kbd_irq = i8042_aux_irq = 13 | 0x20;
  67                 kbd_iobase = ioremap(0x71300060, 8);
  68                 if (!kbd_iobase)
  69                         return -ENODEV;
  70         } else {
  71                 struct linux_ebus *ebus;
  72                 struct linux_ebus_device *edev;
  73                 struct linux_ebus_child *child;
  74
  75                 for_each_ebus(ebus) {
  76                         for_each_ebusdev(edev, ebus) {
  77                                 if (!strcmp(edev->prom_name, "8042"))
  78                                         goto edev_found;
  79                         }
  80                 }
  81                 return -ENODEV;
  82
  83         edev_found:
  84                 for_each_edevchild(edev, child) {
  85                         if (!strcmp(child->prom_name, OBP_PS2KBD_NAME1) ||
  86                             !strcmp(child->prom_name, OBP_PS2KBD_NAME2)) {
  87                                 i8042_kbd_irq = child->irqs[0];
  88                                 kbd_iobase =
  89                                         ioremap(child->resource[0].start, 8);
  90                         }
  91                         if (!strcmp(child->prom_name, OBP_PS2MS_NAME1) ||
  92                             !strcmp(child->prom_name, OBP_PS2MS_NAME2))
  93                                 i8042_aux_irq = child->irqs[0];
  94                 }
  95                 if (i8042_kbd_irq == -1 ||
  96                     i8042_aux_irq == -1) {
  97                         printk("i8042: Error, 8042 device lacks both kbd and "
  98                                "mouse nodes.\n");
  99                         return -ENODEV;
 100                 }
 101         }
 102
 103         i8042_reset = 1;
 104
 105         return 0;
 106 #endif /* CONFIG_PCI */
 107 }
 108
 109 static inline void i8042_platform_exit(void)
 110 {
 111 #ifdef CONFIG_PCI
 112         iounmap(kbd_iobase);
 113 #endif
 114 }
 115
 116 #endif /* _I8042_SPARCIO_H */