summaryrefslogtreecommitdiff
path: root/arch/h8300/kernel/gpio.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/h8300/kernel/gpio.c')
-rw-r--r--arch/h8300/kernel/gpio.c178
1 files changed, 0 insertions, 178 deletions
diff --git a/arch/h8300/kernel/gpio.c b/arch/h8300/kernel/gpio.c
deleted file mode 100644
index 084bfd0c107e..000000000000
--- a/arch/h8300/kernel/gpio.c
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- * linux/arch/h8300/kernel/gpio.c
- *
- * Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- */
-
-/*
- * Internal I/O Port Management
- */
-
-#include <linux/stddef.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-
-#define _(addr) (volatile unsigned char *)(addr)
-#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
-#include <asm/regs306x.h>
-static volatile unsigned char *ddrs[] = {
- _(P1DDR),_(P2DDR),_(P3DDR),_(P4DDR),_(P5DDR),_(P6DDR),
- NULL, _(P8DDR),_(P9DDR),_(PADDR),_(PBDDR),
-};
-#define MAX_PORT 11
-#endif
-
- #if defined(CONFIG_H83002) || defined(CONFIG_H8048)
-/* Fix me!! */
-#include <asm/regs306x.h>
-static volatile unsigned char *ddrs[] = {
- _(P1DDR),_(P2DDR),_(P3DDR),_(P4DDR),_(P5DDR),_(P6DDR),
- NULL, _(P8DDR),_(P9DDR),_(PADDR),_(PBDDR),
-};
-#define MAX_PORT 11
-#endif
-
-#if defined(CONFIG_H8S2678)
-#include <asm/regs267x.h>
-static volatile unsigned char *ddrs[] = {
- _(P1DDR),_(P2DDR),_(P3DDR),NULL ,_(P5DDR),_(P6DDR),
- _(P7DDR),_(P8DDR),NULL, _(PADDR),_(PBDDR),_(PCDDR),
- _(PDDDR),_(PEDDR),_(PFDDR),_(PGDDR),_(PHDDR),
- _(PADDR),_(PBDDR),_(PCDDR),_(PDDDR),_(PEDDR),_(PFDDR),
- _(PGDDR),_(PHDDR)
-};
-#define MAX_PORT 17
-#endif
-#undef _
-
-#if !defined(P1DDR)
-#error Unsuppoted CPU Selection
-#endif
-
-static struct {
- unsigned char used;
- unsigned char ddr;
-} gpio_regs[MAX_PORT];
-
-extern char *_platform_gpio_table(int length);
-
-int h8300_reserved_gpio(int port, unsigned int bits)
-{
- unsigned char *used;
-
- if (port < 0 || port >= MAX_PORT)
- return -1;
- used = &(gpio_regs[port].used);
- if ((*used & bits) != 0)
- return 0;
- *used |= bits;
- return 1;
-}
-
-int h8300_free_gpio(int port, unsigned int bits)
-{
- unsigned char *used;
-
- if (port < 0 || port >= MAX_PORT)
- return -1;
- used = &(gpio_regs[port].used);
- if ((*used & bits) != bits)
- return 0;
- *used &= (~bits);
- return 1;
-}
-
-int h8300_set_gpio_dir(int port_bit,int dir)
-{
- int port = (port_bit >> 8) & 0xff;
- int bit = port_bit & 0xff;
-
- if (ddrs[port] == NULL)
- return 0;
- if (gpio_regs[port].used & bit) {
- if (dir)
- gpio_regs[port].ddr |= bit;
- else
- gpio_regs[port].ddr &= ~bit;
- *ddrs[port] = gpio_regs[port].ddr;
- return 1;
- } else
- return 0;
-}
-
-int h8300_get_gpio_dir(int port_bit)
-{
- int port = (port_bit >> 8) & 0xff;
- int bit = port_bit & 0xff;
-
- if (ddrs[port] == NULL)
- return 0;
- if (gpio_regs[port].used & bit) {
- return (gpio_regs[port].ddr & bit) != 0;
- } else
- return -1;
-}
-
-#if defined(CONFIG_PROC_FS)
-static char *port_status(int portno)
-{
- static char result[10];
- static const char io[2]={'I','O'};
- char *rp;
- int c;
- unsigned char used,ddr;
-
- used = gpio_regs[portno].used;
- ddr = gpio_regs[portno].ddr;
- result[8]='\0';
- rp = result + 7;
- for (c = 8; c > 0; c--,rp--,used >>= 1, ddr >>= 1)
- if (used & 0x01)
- *rp = io[ ddr & 0x01];
- else
- *rp = '-';
- return result;
-}
-
-static int gpio_proc_show(struct seq_file *m, void *v)
-{
- static const char port_name[]="123456789ABCDEFGH";
- int c;
-
- for (c = 0; c < MAX_PORT; c++) {
- if (ddrs[c] == NULL)
- continue;
- seq_printf(m, "P%c: %s\n", port_name[c], port_status(c));
- }
- return 0;
-}
-
-static int gpio_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, gpio_proc_show, PDE_DATA(inode));
-}
-
-static const struct file_operations gpio_proc_fops = {
- .open = gpio_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static __init int register_proc(void)
-{
- return proc_create("gpio", S_IRUGO, NULL, &gpio_proc_fops) != NULL;
-}
-
-__initcall(register_proc);
-#endif
-
-void __init h8300_gpio_init(void)
-{
- memcpy(gpio_regs,_platform_gpio_table(sizeof(gpio_regs)),sizeof(gpio_regs));
-}