Contributors: 11
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| David S. Miller |
536 |
82.59% |
10 |
43.48% |
| Liang He |
33 |
5.08% |
1 |
4.35% |
| Rob Herring |
25 |
3.85% |
1 |
4.35% |
| Grant C. Likely |
21 |
3.24% |
4 |
17.39% |
| Alexander Beregalov |
12 |
1.85% |
1 |
4.35% |
| Vojtech Pavlik |
11 |
1.69% |
1 |
4.35% |
| Dmitry Torokhov |
4 |
0.62% |
1 |
4.35% |
| Stephen Rothwell |
4 |
0.62% |
1 |
4.35% |
| Marcos Paulo de Souza |
1 |
0.15% |
1 |
4.35% |
| Andrew Morton |
1 |
0.15% |
1 |
4.35% |
| Greg Kroah-Hartman |
1 |
0.15% |
1 |
4.35% |
| Total |
649 |
|
23 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _I8042_SPARCIO_H
#define _I8042_SPARCIO_H
#include <linux/of_device.h>
#include <linux/types.h>
#include <asm/io.h>
#include <asm/oplib.h>
#include <asm/prom.h>
static int i8042_kbd_irq = -1;
static int i8042_aux_irq = -1;
#define I8042_KBD_IRQ i8042_kbd_irq
#define I8042_AUX_IRQ i8042_aux_irq
#define I8042_KBD_PHYS_DESC "sparcps2/serio0"
#define I8042_AUX_PHYS_DESC "sparcps2/serio1"
#define I8042_MUX_PHYS_DESC "sparcps2/serio%d"
static void __iomem *kbd_iobase;
#define I8042_COMMAND_REG (kbd_iobase + 0x64UL)
#define I8042_DATA_REG (kbd_iobase + 0x60UL)
static inline int i8042_read_data(void)
{
return readb(kbd_iobase + 0x60UL);
}
static inline int i8042_read_status(void)
{
return readb(kbd_iobase + 0x64UL);
}
static inline void i8042_write_data(int val)
{
writeb(val, kbd_iobase + 0x60UL);
}
static inline void i8042_write_command(int val)
{
writeb(val, kbd_iobase + 0x64UL);
}
#ifdef CONFIG_PCI
static struct resource *kbd_res;
#define OBP_PS2KBD_NAME1 "kb_ps2"
#define OBP_PS2KBD_NAME2 "keyboard"
#define OBP_PS2MS_NAME1 "kdmouse"
#define OBP_PS2MS_NAME2 "mouse"
static int sparc_i8042_probe(struct platform_device *op)
{
struct device_node *dp;
for_each_child_of_node(op->dev.of_node, dp) {
if (of_node_name_eq(dp, OBP_PS2KBD_NAME1) ||
of_node_name_eq(dp, OBP_PS2KBD_NAME2)) {
struct platform_device *kbd = of_find_device_by_node(dp);
unsigned int irq = kbd->archdata.irqs[0];
if (irq == 0xffffffff)
irq = op->archdata.irqs[0];
i8042_kbd_irq = irq;
kbd_iobase = of_ioremap(&kbd->resource[0],
0, 8, "kbd");
kbd_res = &kbd->resource[0];
} else if (of_node_name_eq(dp, OBP_PS2MS_NAME1) ||
of_node_name_eq(dp, OBP_PS2MS_NAME2)) {
struct platform_device *ms = of_find_device_by_node(dp);
unsigned int irq = ms->archdata.irqs[0];
if (irq == 0xffffffff)
irq = op->archdata.irqs[0];
i8042_aux_irq = irq;
}
}
return 0;
}
static int sparc_i8042_remove(struct platform_device *op)
{
of_iounmap(kbd_res, kbd_iobase, 8);
return 0;
}
static const struct of_device_id sparc_i8042_match[] = {
{
.name = "8042",
},
{},
};
MODULE_DEVICE_TABLE(of, sparc_i8042_match);
static struct platform_driver sparc_i8042_driver = {
.driver = {
.name = "i8042",
.of_match_table = sparc_i8042_match,
},
.probe = sparc_i8042_probe,
.remove = sparc_i8042_remove,
};
static bool i8042_is_mr_coffee(void)
{
struct device_node *root;
const char *name;
bool is_mr_coffee;
root = of_find_node_by_path("/");
name = of_get_property(root, "name", NULL);
is_mr_coffee = name && !strcmp(name, "SUNW,JavaStation-1");
of_node_put(root);
return is_mr_coffee;
}
static int __init i8042_platform_init(void)
{
if (i8042_is_mr_coffee()) {
/* Hardcoded values for MrCoffee. */
i8042_kbd_irq = i8042_aux_irq = 13 | 0x20;
kbd_iobase = ioremap(0x71300060, 8);
if (!kbd_iobase)
return -ENODEV;
} else {
int err = platform_driver_register(&sparc_i8042_driver);
if (err)
return err;
if (i8042_kbd_irq == -1 ||
i8042_aux_irq == -1) {
if (kbd_iobase) {
of_iounmap(kbd_res, kbd_iobase, 8);
kbd_iobase = (void __iomem *) NULL;
}
return -ENODEV;
}
}
i8042_reset = I8042_RESET_ALWAYS;
return 0;
}
static inline void i8042_platform_exit(void)
{
if (!i8042_is_mr_coffee())
platform_driver_unregister(&sparc_i8042_driver);
}
#else /* !CONFIG_PCI */
static int __init i8042_platform_init(void)
{
return -ENODEV;
}
static inline void i8042_platform_exit(void)
{
}
#endif /* !CONFIG_PCI */
#endif /* _I8042_SPARCIO_H */