projects / mirror_ubuntu-jammy-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _I8042_SPARCIO_H |
| 2 | #define _I8042_SPARCIO_H | |
| 3 | ||
| 1da177e4 | 4 | #include <asm/io.h> |
| 1da177e4 | 5 | #include <asm/oplib.h> |
| f57caaef DM |
6 | #include <asm/prom.h> |
| 7 | #include <asm/of_device.h> | |
| 1da177e4 LT |
8 | |
| 9 | static int i8042_kbd_irq = -1; | |
| 10 | static int i8042_aux_irq = -1; | |
| 11 | #define I8042_KBD_IRQ i8042_kbd_irq | |
| 12 | #define I8042_AUX_IRQ i8042_aux_irq | |
| 13 | ||
| 14 | #define I8042_KBD_PHYS_DESC "sparcps2/serio0" | |
| 15 | #define I8042_AUX_PHYS_DESC "sparcps2/serio1" | |
| 16 | #define I8042_MUX_PHYS_DESC "sparcps2/serio%d" | |
| 17 | ||
| 18 | static void __iomem *kbd_iobase; | |
| 19 | ||
| 20 | #define I8042_COMMAND_REG (kbd_iobase + 0x64UL) | |
| 21 | #define I8042_DATA_REG (kbd_iobase + 0x60UL) | |
| 22 | ||
| 23 | static inline int i8042_read_data(void) | |
| 24 | { | |
| 25 | return readb(kbd_iobase + 0x60UL); | |
| 26 | } | |
| 27 | ||
| 28 | static inline int i8042_read_status(void) | |
| 29 | { | |
| 30 | return readb(kbd_iobase + 0x64UL); | |
| 31 | } | |
| 32 | ||
| 33 | static inline void i8042_write_data(int val) | |
| 34 | { | |
| 35 | writeb(val, kbd_iobase + 0x60UL); | |
| 36 | } | |
| 37 | ||
| 38 | static inline void i8042_write_command(int val) | |
| 39 | { | |
| 40 | writeb(val, kbd_iobase + 0x64UL); | |
| 41 | } | |
| 42 | ||
| 43 | #define OBP_PS2KBD_NAME1 "kb_ps2" | |
| 44 | #define OBP_PS2KBD_NAME2 "keyboard" | |
| 45 | #define OBP_PS2MS_NAME1 "kdmouse" | |
| 46 | #define OBP_PS2MS_NAME2 "mouse" | |
| 47 | ||
| f57caaef DM |
48 | static int __devinit sparc_i8042_probe(struct of_device *op, const struct of_device_id *match) |
| 49 | { | |
| 50 | struct device_node *dp = op->node; | |
| 51 | ||
| 52 | dp = dp->child; | |
| 53 | while (dp) { | |
| 54 | if (!strcmp(dp->name, OBP_PS2KBD_NAME1) || | |
| 55 | !strcmp(dp->name, OBP_PS2KBD_NAME2)) { | |
| 56 | struct of_device *kbd = of_find_device_by_node(dp); | |
| 57 | unsigned int irq = kbd->irqs[0]; | |
| 58 | if (irq == 0xffffffff) | |
| 59 | irq = op->irqs[0]; | |
| 60 | i8042_kbd_irq = irq; | |
| 61 | kbd_iobase = of_ioremap(&kbd->resource[0], | |
| 62 | 0, 8, "kbd"); | |
| 63 | } else if (!strcmp(dp->name, OBP_PS2MS_NAME1) || | |
| 64 | !strcmp(dp->name, OBP_PS2MS_NAME2)) { | |
| 65 | struct of_device *ms = of_find_device_by_node(dp); | |
| 66 | unsigned int irq = ms->irqs[0]; | |
| 67 | if (irq == 0xffffffff) | |
| 68 | irq = op->irqs[0]; | |
| 69 | i8042_aux_irq = irq; | |
| 70 | } | |
| 71 | ||
| 72 | dp = dp->sibling; | |
| 73 | } | |
| 74 | ||
| 75 | return 0; | |
| 76 | } | |
| 77 | ||
| 78 | static int __devexit sparc_i8042_remove(struct of_device *op) | |
| 79 | { | |
| 80 | of_iounmap(kbd_iobase, 8); | |
| 81 | ||
| 82 | return 0; | |
| 83 | } | |
| 84 | ||
| 85 | static struct of_device_id sparc_i8042_match[] = { | |
| 86 | { | |
| 87 | .name = "8042", | |
| 88 | }, | |
| 89 | {}, | |
| 90 | }; | |
| 91 | MODULE_DEVICE_TABLE(of, i8042_match); | |
| 92 | ||
| 93 | static struct of_platform_driver sparc_i8042_driver = { | |
| 94 | .name = "i8042", | |
| 95 | .match_table = sparc_i8042_match, | |
| 96 | .probe = sparc_i8042_probe, | |
| 97 | .remove = __devexit_p(sparc_i8042_remove), | |
| 98 | }; | |
| 99 | ||
| 8d5987a6 | 100 | static int __init i8042_platform_init(void) |
| 1da177e4 LT |
101 | { |
| 102 | #ifndef CONFIG_PCI | |
| 8d5987a6 | 103 | return -ENODEV; |
| 1da177e4 | 104 | #else |
| f57caaef | 105 | struct device_node *root = of_find_node_by_path("/"); |
| 1da177e4 | 106 | |
| f57caaef | 107 | if (!strcmp(root->name, "SUNW,JavaStation-1")) { |
| 1da177e4 LT |
108 | /* Hardcoded values for MrCoffee. */ |
| 109 | i8042_kbd_irq = i8042_aux_irq = 13 | 0x20; | |
| 110 | kbd_iobase = ioremap(0x71300060, 8); | |
| 111 | if (!kbd_iobase) | |
| 8d5987a6 | 112 | return -ENODEV; |
| 1da177e4 | 113 | } else { |
| f57caaef DM |
114 | int err = of_register_driver(&sparc_i8042_driver, |
| 115 | &of_bus_type); | |
| 116 | if (err) | |
| 117 | return err; | |
| 118 | ||
| 1da177e4 LT |
119 | if (i8042_kbd_irq == -1 || |
| 120 | i8042_aux_irq == -1) { | |
| f57caaef DM |
121 | if (kbd_iobase) { |
| 122 | of_iounmap(kbd_iobase, 8); | |
| 123 | kbd_iobase = (void __iomem *) NULL; | |
| 124 | } | |
| 8d5987a6 | 125 | return -ENODEV; |
| 1da177e4 LT |
126 | } |
| 127 | } | |
| 128 | ||
| 129 | i8042_reset = 1; | |
| 130 | ||
| 131 | return 0; | |
| 132 | #endif /* CONFIG_PCI */ | |
| 133 | } | |
| 134 | ||
| 135 | static inline void i8042_platform_exit(void) | |
| 136 | { | |
| 137 | #ifdef CONFIG_PCI | |
| f57caaef DM |
138 | struct device_node *root = of_find_node_by_path("/"); |
| 139 | ||
| 140 | if (strcmp(root->name, "SUNW,JavaStation-1")) | |
| 141 | of_unregister_driver(&sparc_i8042_driver); | |
| 1da177e4 LT |
142 | #endif |
| 143 | } | |
| 144 | ||
| 145 | #endif /* _I8042_SPARCIO_H */ |