summaryrefslogtreecommitdiff
path: root/drivers/s390/char/con3215.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/s390/char/con3215.c')
-rw-r--r--drivers/s390/char/con3215.c47
1 files changed, 23 insertions, 24 deletions
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 72ba83c1bc79..56e43d43c713 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -23,9 +23,10 @@
#include <linux/reboot.h>
#include <linux/serial.h> /* ASYNC_* flags */
#include <linux/slab.h>
+#include <asm/machine.h>
#include <asm/ccwdev.h>
#include <asm/cio.h>
-#include <asm/io.h>
+#include <linux/io.h>
#include <asm/ebcdic.h>
#include <linux/uaccess.h>
#include <asm/delay.h>
@@ -79,8 +80,8 @@ struct raw3215_info {
struct ccw_device *cdev; /* device for tty driver */
spinlock_t *lock; /* pointer to irq lock */
int flags; /* state flags */
- char *buffer; /* pointer to output buffer */
- char *inbuf; /* pointer to input buffer */
+ u8 *buffer; /* pointer to output buffer */
+ u8 *inbuf; /* pointer to input buffer */
int head; /* first free byte in output buffer */
int count; /* number of bytes in output buffer */
int written; /* number of bytes in write requests */
@@ -89,7 +90,6 @@ struct raw3215_info {
wait_queue_head_t empty_wait; /* wait queue for flushing */
struct timer_list timer; /* timer for delayed output */
int line_pos; /* position on the line (for tabs) */
- char ubuffer[80]; /* copy_from_user buffer */
};
/* array of 3215 devices structures */
@@ -160,7 +160,7 @@ static void raw3215_mk_read_req(struct raw3215_info *raw)
ccw->cmd_code = 0x0A; /* read inquiry */
ccw->flags = 0x20; /* ignore incorrect length */
ccw->count = 160;
- ccw->cda = (__u32)__pa(raw->inbuf);
+ ccw->cda = virt_to_dma32(raw->inbuf);
}
/*
@@ -219,7 +219,7 @@ static void raw3215_mk_write_req(struct raw3215_info *raw)
ccw[-1].flags |= 0x40; /* use command chaining */
ccw->cmd_code = 0x01; /* write, auto carrier return */
ccw->flags = 0x20; /* ignore incorrect length ind. */
- ccw->cda = (__u32)__pa(raw->buffer + ix);
+ ccw->cda = virt_to_dma32(raw->buffer + ix);
count = len;
if (ix + count > RAW3215_BUFFER_SIZE)
count = RAW3215_BUFFER_SIZE - ix;
@@ -284,7 +284,7 @@ static void raw3215_start_io(struct raw3215_info *raw)
*/
static void raw3215_timeout(struct timer_list *t)
{
- struct raw3215_info *raw = from_timer(raw, t, timer);
+ struct raw3215_info *raw = timer_container_of(raw, t, timer);
unsigned long flags;
spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
@@ -523,12 +523,14 @@ static unsigned int raw3215_make_room(struct raw3215_info *raw,
* string without blocking.
* Return value is the number of bytes copied.
*/
-static unsigned int raw3215_addtext(const char *str, unsigned int length,
+static unsigned int raw3215_addtext(const u8 *str, size_t length,
struct raw3215_info *raw, int opmode,
unsigned int todrop)
{
- unsigned int c, ch, i, blanks, expanded_size = 0;
+ unsigned int i, blanks, expanded_size = 0;
unsigned int column = raw->line_pos;
+ size_t c;
+ u8 ch;
if (opmode == RAW3215_COUNT)
todrop = 0;
@@ -559,7 +561,7 @@ static unsigned int raw3215_addtext(const char *str, unsigned int length,
if (todrop && expanded_size < todrop) /* Drop head data */
continue;
for (i = 0; i < blanks; i++) {
- raw->buffer[raw->head] = (char)_ascebc[(int)ch];
+ raw->buffer[raw->head] = _ascebc[ch];
raw->head = (raw->head + 1) & (RAW3215_BUFFER_SIZE - 1);
raw->count++;
}
@@ -571,8 +573,8 @@ static unsigned int raw3215_addtext(const char *str, unsigned int length,
/*
* String write routine for 3215 devices
*/
-static void raw3215_write(struct raw3215_info *raw, const char *str,
- unsigned int length)
+static void raw3215_write(struct raw3215_info *raw, const u8 *str,
+ size_t length)
{
unsigned int count, avail;
unsigned long flags;
@@ -597,7 +599,7 @@ static void raw3215_write(struct raw3215_info *raw, const char *str,
/*
* Put character routine for 3215 devices
*/
-static void raw3215_putchar(struct raw3215_info *raw, unsigned char ch)
+static void raw3215_putchar(struct raw3215_info *raw, u8 ch)
{
raw3215_write(raw, &ch, 1);
}
@@ -629,7 +631,7 @@ static int raw3215_startup(struct raw3215_info *raw)
if (tty_port_initialized(&raw->port))
return 0;
raw->line_pos = 0;
- tty_port_set_initialized(&raw->port, 1);
+ tty_port_set_initialized(&raw->port, true);
spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
raw3215_try_io(raw);
spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
@@ -659,7 +661,7 @@ static void raw3215_shutdown(struct raw3215_info *raw)
spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
remove_wait_queue(&raw->empty_wait, &wait);
set_current_state(TASK_RUNNING);
- tty_port_set_initialized(&raw->port, 1);
+ tty_port_set_initialized(&raw->port, true);
}
spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
}
@@ -802,7 +804,6 @@ static struct attribute *con3215_drv_attrs[] = {
static struct attribute_group con3215_drv_attr_group = {
.attrs = con3215_drv_attrs,
- NULL,
};
static const struct attribute_group *con3215_drv_attr_groups[] = {
@@ -824,12 +825,10 @@ static struct ccw_driver raw3215_ccw_driver = {
.int_class = IRQIO_C15,
};
-static void handle_write(struct raw3215_info *raw, const char *str, int count)
+static void handle_write(struct raw3215_info *raw, const u8 *str, size_t count)
{
- int i;
-
while (count > 0) {
- i = min_t(int, count, RAW3215_BUFFER_SIZE - 1);
+ size_t i = min_t(size_t, count, RAW3215_BUFFER_SIZE - 1);
raw3215_write(raw, str, i);
count -= i;
str += i;
@@ -909,7 +908,7 @@ static int __init con3215_init(void)
return -ENODEV;
/* Set the console mode for VM */
- if (MACHINE_IS_VM) {
+ if (machine_is_vm()) {
cpcmd("TERM CONMODE 3215", NULL, 0, NULL);
cpcmd("TERM AUTOCR OFF", NULL, 0, NULL);
}
@@ -1021,8 +1020,8 @@ static unsigned int tty3215_write_room(struct tty_struct *tty)
/*
* String write routine for 3215 ttys
*/
-static int tty3215_write(struct tty_struct *tty,
- const unsigned char *buf, int count)
+static ssize_t tty3215_write(struct tty_struct *tty, const u8 *buf,
+ size_t count)
{
handle_write(tty->driver_data, buf, count);
return count;
@@ -1031,7 +1030,7 @@ static int tty3215_write(struct tty_struct *tty,
/*
* Put character routine for 3215 ttys
*/
-static int tty3215_put_char(struct tty_struct *tty, unsigned char ch)
+static int tty3215_put_char(struct tty_struct *tty, u8 ch)
{
struct raw3215_info *raw = tty->driver_data;
generated by cgit (git 2.34.1) at 2025-12-25 13:58:20 +0000