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authorChris Zankel <chris@zankel.net>2007-09-13 13:44:07 -0700
committerChris Zankel <chris@zankel.net>2008-02-13 16:45:06 -0800
commitb26d0ab0e6fa3a886d2799bf89eb05dd52f8b7c2 (patch)
treea602dca2464a59d1f230639b95885b3e04913091 /arch/xtensa/platform-iss/console.c
parent4f8d98ff4825336b23372bb552852625fc90d3b1 (diff)
downloadlinux-b26d0ab0e6fa3a886d2799bf89eb05dd52f8b7c2.tar.bz2
[XTENSA] Concentrate platforms into one platforms directory.
Create arch/xtensa/platforms/ directory to concentrate all platforms under that subdirectory and moves the ISS platform to that directory. Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'arch/xtensa/platform-iss/console.c')
-rw-r--r--arch/xtensa/platform-iss/console.c296
1 files changed, 0 insertions, 296 deletions
diff --git a/arch/xtensa/platform-iss/console.c b/arch/xtensa/platform-iss/console.c
deleted file mode 100644
index 854677d0c3f6..000000000000
--- a/arch/xtensa/platform-iss/console.c
+++ /dev/null
@@ -1,296 +0,0 @@
-/*
- * arch/xtensa/platform-iss/console.c
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2001-2005 Tensilica Inc.
- * Authors Christian Zankel, Joe Taylor
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/console.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/major.h>
-#include <linux/param.h>
-#include <linux/serial.h>
-#include <linux/serialP.h>
-
-#include <asm/uaccess.h>
-#include <asm/irq.h>
-
-#include <asm/platform/simcall.h>
-
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-
-#ifdef SERIAL_INLINE
-#define _INLINE_ inline
-#endif
-
-#define SERIAL_MAX_NUM_LINES 1
-#define SERIAL_TIMER_VALUE (20 * HZ)
-
-static struct tty_driver *serial_driver;
-static struct timer_list serial_timer;
-
-static DEFINE_SPINLOCK(timer_lock);
-
-int errno;
-
-static int __simc (int a, int b, int c, int d, int e, int f)
-{
- int ret;
- __asm__ __volatile__ ("simcall\n"
- "mov %0, a2\n"
- "mov %1, a3\n" : "=a" (ret), "=a" (errno)
- : : "a2", "a3");
- return ret;
-}
-
-static char *serial_version = "0.1";
-static char *serial_name = "ISS serial driver";
-
-/*
- * This routine is called whenever a serial port is opened. It
- * enables interrupts for a serial port, linking in its async structure into
- * the IRQ chain. It also performs the serial-specific
- * initialization for the tty structure.
- */
-
-static void rs_poll(unsigned long);
-
-static int rs_open(struct tty_struct *tty, struct file * filp)
-{
- int line = tty->index;
-
- if ((line < 0) || (line >= SERIAL_MAX_NUM_LINES))
- return -ENODEV;
-
- spin_lock(&timer_lock);
-
- if (tty->count == 1) {
- init_timer(&serial_timer);
- serial_timer.data = (unsigned long) tty;
- serial_timer.function = rs_poll;
- mod_timer(&serial_timer, jiffies + SERIAL_TIMER_VALUE);
- }
- spin_unlock(&timer_lock);
-
- return 0;
-}
-
-
-/*
- * ------------------------------------------------------------
- * iss_serial_close()
- *
- * This routine is called when the serial port gets closed. First, we
- * wait for the last remaining data to be sent. Then, we unlink its
- * async structure from the interrupt chain if necessary, and we free
- * that IRQ if nothing is left in the chain.
- * ------------------------------------------------------------
- */
-static void rs_close(struct tty_struct *tty, struct file * filp)
-{
- spin_lock(&timer_lock);
- if (tty->count == 1)
- del_timer_sync(&serial_timer);
- spin_unlock(&timer_lock);
-}
-
-
-static int rs_write(struct tty_struct * tty,
- const unsigned char *buf, int count)
-{
- /* see drivers/char/serialX.c to reference original version */
-
- __simc (SYS_write, 1, (unsigned long)buf, count, 0, 0);
- return count;
-}
-
-static void rs_poll(unsigned long priv)
-{
- struct tty_struct* tty = (struct tty_struct*) priv;
-
- struct timeval tv = { .tv_sec = 0, .tv_usec = 0 };
- int i = 0;
- unsigned char c;
-
- spin_lock(&timer_lock);
-
- while (__simc(SYS_select_one, 0, XTISS_SELECT_ONE_READ, (int)&tv,0,0)){
- __simc (SYS_read, 0, (unsigned long)&c, 1, 0, 0);
- tty_insert_flip_char(tty, c, TTY_NORMAL);
- i++;
- }
-
- if (i)
- tty_flip_buffer_push(tty);
-
-
- mod_timer(&serial_timer, jiffies + SERIAL_TIMER_VALUE);
- spin_unlock(&timer_lock);
-}
-
-
-static void rs_put_char(struct tty_struct *tty, unsigned char ch)
-{
- char buf[2];
-
- if (!tty)
- return;
-
- buf[0] = ch;
- buf[1] = '\0'; /* Is this NULL necessary? */
- __simc (SYS_write, 1, (unsigned long) buf, 1, 0, 0);
-}
-
-static void rs_flush_chars(struct tty_struct *tty)
-{
-}
-
-static int rs_write_room(struct tty_struct *tty)
-{
- /* Let's say iss can always accept 2K characters.. */
- return 2 * 1024;
-}
-
-static int rs_chars_in_buffer(struct tty_struct *tty)
-{
- /* the iss doesn't buffer characters */
- return 0;
-}
-
-static void rs_hangup(struct tty_struct *tty)
-{
- /* Stub, once again.. */
-}
-
-static void rs_wait_until_sent(struct tty_struct *tty, int timeout)
-{
- /* Stub, once again.. */
-}
-
-static int rs_read_proc(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- int len = 0;
- off_t begin = 0;
-
- len += sprintf(page, "serinfo:1.0 driver:%s\n", serial_version);
- *eof = 1;
-
- if (off >= len + begin)
- return 0;
-
- *start = page + (off - begin);
- return ((count < begin + len - off) ? count : begin + len - off);
-}
-
-
-static struct tty_operations serial_ops = {
- .open = rs_open,
- .close = rs_close,
- .write = rs_write,
- .put_char = rs_put_char,
- .flush_chars = rs_flush_chars,
- .write_room = rs_write_room,
- .chars_in_buffer = rs_chars_in_buffer,
- .hangup = rs_hangup,
- .wait_until_sent = rs_wait_until_sent,
- .read_proc = rs_read_proc
-};
-
-int __init rs_init(void)
-{
- serial_driver = alloc_tty_driver(1);
-
- printk ("%s %s\n", serial_name, serial_version);
-
- /* Initialize the tty_driver structure */
-
- serial_driver->owner = THIS_MODULE;
- serial_driver->driver_name = "iss_serial";
- serial_driver->name = "ttyS";
- serial_driver->major = TTY_MAJOR;
- serial_driver->minor_start = 64;
- serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
- serial_driver->subtype = SERIAL_TYPE_NORMAL;
- serial_driver->init_termios = tty_std_termios;
- serial_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- serial_driver->flags = TTY_DRIVER_REAL_RAW;
-
- tty_set_operations(serial_driver, &serial_ops);
-
- if (tty_register_driver(serial_driver))
- panic("Couldn't register serial driver\n");
- return 0;
-}
-
-
-static __exit void rs_exit(void)
-{
- int error;
-
- if ((error = tty_unregister_driver(serial_driver)))
- printk("ISS_SERIAL: failed to unregister serial driver (%d)\n",
- error);
- put_tty_driver(serial_driver);
-}
-
-
-/* We use `late_initcall' instead of just `__initcall' as a workaround for
- * the fact that (1) simcons_tty_init can't be called before tty_init,
- * (2) tty_init is called via `module_init', (3) if statically linked,
- * module_init == device_init, and (4) there's no ordering of init lists.
- * We can do this easily because simcons is always statically linked, but
- * other tty drivers that depend on tty_init and which must use
- * `module_init' to declare their init routines are likely to be broken.
- */
-
-late_initcall(rs_init);
-
-
-#ifdef CONFIG_SERIAL_CONSOLE
-
-static void iss_console_write(struct console *co, const char *s, unsigned count)
-{
- int len = strlen(s);
-
- if (s != 0 && *s != 0)
- __simc (SYS_write, 1, (unsigned long)s,
- count < len ? count : len,0,0);
-}
-
-static struct tty_driver* iss_console_device(struct console *c, int *index)
-{
- *index = c->index;
- return serial_driver;
-}
-
-
-static struct console sercons = {
- .name = "ttyS",
- .write = iss_console_write,
- .device = iss_console_device,
- .flags = CON_PRINTBUFFER,
- .index = -1
-};
-
-static int __init iss_console_init(void)
-{
- register_console(&sercons);
- return 0;
-}
-
-console_initcall(iss_console_init);
-
-#endif /* CONFIG_SERIAL_CONSOLE */
-