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path: root/drivers/usb/misc/sisusbvga/sisusb_con.c
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Diffstat (limited to 'drivers/usb/misc/sisusbvga/sisusb_con.c')
-rw-r--r--drivers/usb/misc/sisusbvga/sisusb_con.c151
1 files changed, 66 insertions, 85 deletions
diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c
index be5c1a25ae2..fb48feca835 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_con.c
+++ b/drivers/usb/misc/sisusbvga/sisusb_con.c
@@ -48,6 +48,7 @@
*/
#include <linux/config.h>
+#include <linux/mutex.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/signal.h>
@@ -69,27 +70,9 @@
#include <linux/vmalloc.h>
#include "sisusb.h"
+#include "sisusb_init.h"
#ifdef INCL_SISUSB_CON
-extern int sisusb_setreg(struct sisusb_usb_data *, int, u8);
-extern int sisusb_getreg(struct sisusb_usb_data *, int, u8 *);
-extern int sisusb_setidxreg(struct sisusb_usb_data *, int, u8, u8);
-extern int sisusb_getidxreg(struct sisusb_usb_data *, int, u8, u8 *);
-extern int sisusb_setidxregor(struct sisusb_usb_data *, int, u8, u8);
-extern int sisusb_setidxregand(struct sisusb_usb_data *, int, u8, u8);
-extern int sisusb_setidxregandor(struct sisusb_usb_data *, int, u8, u8, u8);
-
-extern int sisusb_writeb(struct sisusb_usb_data *sisusb, u32 adr, u8 data);
-extern int sisusb_readb(struct sisusb_usb_data *sisusb, u32 adr, u8 *data);
-extern int sisusb_writew(struct sisusb_usb_data *sisusb, u32 adr, u16 data);
-extern int sisusb_readw(struct sisusb_usb_data *sisusb, u32 adr, u16 *data);
-extern int sisusb_copy_memory(struct sisusb_usb_data *sisusb, char *src,
- u32 dest, int length, size_t *bytes_written);
-
-extern void sisusb_delete(struct kref *kref);
-extern int sisusb_reset_text_mode(struct sisusb_usb_data *sisusb, int init);
-
-extern int SiSUSBSetMode(struct SiS_Private *SiS_Pr, unsigned short ModeNo);
#define sisusbcon_writew(val, addr) (*(addr) = (val))
#define sisusbcon_readw(addr) (*(addr))
@@ -102,8 +85,6 @@ static struct sisusb_usb_data *mysisusbs[MAX_NR_CONSOLES];
/* Forward declaration */
static const struct consw sisusb_con;
-extern struct semaphore disconnect_sem;
-
static inline void
sisusbcon_memsetw(u16 *s, u16 c, unsigned int count)
{
@@ -194,11 +175,11 @@ sisusb_get_sisusb_lock_and_check(unsigned short console)
if (!(sisusb = sisusb_get_sisusb(console)))
return NULL;
- down(&sisusb->lock);
+ mutex_lock(&sisusb->lock);
if (!sisusb_sisusb_valid(sisusb) ||
!sisusb->havethisconsole[console]) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return NULL;
}
@@ -236,18 +217,18 @@ sisusbcon_init(struct vc_data *c, int init)
* are set up/restored.
*/
- down(&disconnect_sem);
+ mutex_lock(&disconnect_mutex);
if (!(sisusb = sisusb_get_sisusb(c->vc_num))) {
- up(&disconnect_sem);
+ mutex_unlock(&disconnect_mutex);
return;
}
- down(&sisusb->lock);
+ mutex_lock(&sisusb->lock);
if (!sisusb_sisusb_valid(sisusb)) {
- up(&sisusb->lock);
- up(&disconnect_sem);
+ mutex_unlock(&sisusb->lock);
+ mutex_unlock(&disconnect_mutex);
return;
}
@@ -284,9 +265,9 @@ sisusbcon_init(struct vc_data *c, int init)
if (!*c->vc_uni_pagedir_loc)
con_set_default_unimap(c);
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
- up(&disconnect_sem);
+ mutex_unlock(&disconnect_mutex);
if (init) {
c->vc_cols = cols;
@@ -306,14 +287,14 @@ sisusbcon_deinit(struct vc_data *c)
* and others, ie not under our control.
*/
- down(&disconnect_sem);
+ mutex_lock(&disconnect_mutex);
if (!(sisusb = sisusb_get_sisusb(c->vc_num))) {
- up(&disconnect_sem);
+ mutex_unlock(&disconnect_mutex);
return;
}
- down(&sisusb->lock);
+ mutex_lock(&sisusb->lock);
/* Clear ourselves in mysisusbs */
mysisusbs[c->vc_num] = NULL;
@@ -332,12 +313,12 @@ sisusbcon_deinit(struct vc_data *c)
}
}
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
/* decrement the usage count on our sisusb */
kref_put(&sisusb->kref, sisusb_delete);
- up(&disconnect_sem);
+ mutex_unlock(&disconnect_mutex);
}
/* interface routine */
@@ -417,7 +398,7 @@ sisusbcon_putc(struct vc_data *c, int ch, int y, int x)
#endif
if (sisusb_is_inactive(c, sisusb)) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return;
}
@@ -425,7 +406,7 @@ sisusbcon_putc(struct vc_data *c, int ch, int y, int x)
sisusb_copy_memory(sisusb, (char *)SISUSB_VADDR(x, y),
(u32)SISUSB_HADDR(x, y), 2, &written);
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
}
/* Interface routine */
@@ -453,14 +434,14 @@ sisusbcon_putcs(struct vc_data *c, const unsigned short *s,
sisusbcon_writew(sisusbcon_readw(s++), dest++);
if (sisusb_is_inactive(c, sisusb)) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return;
}
sisusb_copy_memory(sisusb, (char *)SISUSB_VADDR(x, y),
(u32)SISUSB_HADDR(x, y), count * 2, &written);
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
}
/* Interface routine */
@@ -504,7 +485,7 @@ sisusbcon_clear(struct vc_data *c, int y, int x, int height, int width)
}
if (sisusb_is_inactive(c, sisusb)) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return;
}
@@ -514,7 +495,7 @@ sisusbcon_clear(struct vc_data *c, int y, int x, int height, int width)
sisusb_copy_memory(sisusb, (unsigned char *)SISUSB_VADDR(x, y),
(u32)SISUSB_HADDR(x, y), length, &written);
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
}
/* Interface routine */
@@ -576,7 +557,7 @@ sisusbcon_bmove(struct vc_data *c, int sy, int sx,
#endif
if (sisusb_is_inactive(c, sisusb)) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return;
}
@@ -586,7 +567,7 @@ sisusbcon_bmove(struct vc_data *c, int sy, int sx,
sisusb_copy_memory(sisusb, (unsigned char *)SISUSB_VADDR(dx, dy),
(u32)SISUSB_HADDR(dx, dy), length, &written);
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
}
/* interface routine */
@@ -609,7 +590,7 @@ sisusbcon_switch(struct vc_data *c)
/* Don't write to screen if in gfx mode */
if (sisusb_is_inactive(c, sisusb)) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return 0;
}
@@ -618,7 +599,7 @@ sisusbcon_switch(struct vc_data *c)
* as origin.
*/
if (c->vc_origin == (unsigned long)c->vc_screenbuf) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
printk(KERN_DEBUG "sisusb: ASSERT ORIGIN != SCREENBUF!\n");
return 0;
}
@@ -635,7 +616,7 @@ sisusbcon_switch(struct vc_data *c)
(u32)SISUSB_HADDR(0, 0),
length, &written);
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return 0;
}
@@ -657,7 +638,7 @@ sisusbcon_save_screen(struct vc_data *c)
/* sisusb->lock is down */
if (sisusb_is_inactive(c, sisusb)) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return;
}
@@ -669,7 +650,7 @@ sisusbcon_save_screen(struct vc_data *c)
sisusbcon_memcpyw((u16 *)c->vc_screenbuf, (u16 *)c->vc_origin,
length);
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
}
/* interface routine */
@@ -690,7 +671,7 @@ sisusbcon_set_palette(struct vc_data *c, unsigned char *table)
/* sisusb->lock is down */
if (sisusb_is_inactive(c, sisusb)) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return -EINVAL;
}
@@ -705,7 +686,7 @@ sisusbcon_set_palette(struct vc_data *c, unsigned char *table)
break;
}
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return 0;
}
@@ -728,7 +709,7 @@ sisusbcon_blank(struct vc_data *c, int blank, int mode_switch)
sisusb->is_gfx = blank ? 1 : 0;
if (sisusb_is_inactive(c, sisusb)) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return 0;
}
@@ -777,7 +758,7 @@ sisusbcon_blank(struct vc_data *c, int blank, int mode_switch)
cr63 = 0x40;
break;
default:
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return -EINVAL;
}
@@ -788,7 +769,7 @@ sisusbcon_blank(struct vc_data *c, int blank, int mode_switch)
}
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return ret;
}
@@ -809,7 +790,7 @@ sisusbcon_scrolldelta(struct vc_data *c, int lines)
/* sisusb->lock is down */
if (sisusb_is_inactive(c, sisusb)) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return 0;
}
@@ -849,7 +830,7 @@ sisusbcon_scrolldelta(struct vc_data *c, int lines)
sisusbcon_set_start_address(sisusb, c);
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return 1;
}
@@ -867,7 +848,7 @@ sisusbcon_cursor(struct vc_data *c, int mode)
/* sisusb->lock is down */
if (sisusb_is_inactive(c, sisusb)) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return;
}
@@ -879,7 +860,7 @@ sisusbcon_cursor(struct vc_data *c, int mode)
if (mode == CM_ERASE) {
sisusb_setidxregor(sisusb, SISCR, 0x0a, 0x20);
sisusb->sisusb_cursor_size_to = -1;
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return;
}
@@ -919,7 +900,7 @@ sisusbcon_cursor(struct vc_data *c, int mode)
sisusb->sisusb_cursor_size_to = to;
}
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
}
static int
@@ -961,7 +942,7 @@ sisusbcon_scroll_area(struct vc_data *c, struct sisusb_usb_data *sisusb,
sisusb_copy_memory(sisusb, (char *)SISUSB_VADDR(0, t),
(u32)SISUSB_HADDR(0, t), length, &written);
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return 1;
}
@@ -994,7 +975,7 @@ sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
/* sisusb->lock is down */
if (sisusb_is_inactive(c, sisusb)) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return 0;
}
@@ -1084,7 +1065,7 @@ sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
c->vc_pos = c->vc_pos - oldorigin + c->vc_origin;
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return 1;
}
@@ -1106,7 +1087,7 @@ sisusbcon_set_origin(struct vc_data *c)
/* sisusb->lock is down */
if (sisusb_is_inactive(c, sisusb) || sisusb->con_blanked) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return 0;
}
@@ -1116,7 +1097,7 @@ sisusbcon_set_origin(struct vc_data *c)
sisusb->con_rolled_over = 0;
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return 1;
}
@@ -1133,7 +1114,7 @@ sisusbcon_resize(struct vc_data *c, unsigned int newcols, unsigned int newrows)
fh = sisusb->current_font_height;
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
/* We are quite unflexible as regards resizing. The vt code
* handles sizes where the line length isn't equal the pitch
@@ -1167,7 +1148,7 @@ sisusbcon_do_font_op(struct sisusb_usb_data *sisusb, int set, int slot,
if ((slot != 0 && slot != 2) || !fh) {
if (uplock)
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return -EINVAL;
}
@@ -1327,7 +1308,7 @@ sisusbcon_do_font_op(struct sisusb_usb_data *sisusb, int set, int slot,
}
if (uplock)
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
if (dorecalc && c) {
int i, rows = c->vc_scan_lines / fh;
@@ -1351,7 +1332,7 @@ sisusbcon_do_font_op(struct sisusb_usb_data *sisusb, int set, int slot,
font_op_error:
if (uplock)
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return -EIO;
}
@@ -1417,19 +1398,19 @@ sisusbcon_font_get(struct vc_data *c, struct console_font *font)
font->charcount = 256;
if (!font->data) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return 0;
}
if (!sisusb->font_backup) {
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return -ENODEV;
}
/* Copy 256 chars only, like vgacon */
memcpy(font->data, sisusb->font_backup, 256 * 32);
- up(&sisusb->lock);
+ mutex_unlock(&sisusb->lock);
return 0;
}
@@ -1486,7 +1467,7 @@ static int sisusbdummycon_dummy(void)
#define SISUSBCONDUMMY (void *)sisusbdummycon_dummy
-const struct consw sisusb_dummy_con = {
+static const struct consw sisusb_dummy_con = {
.owner = THIS_MODULE,
.con_startup = sisusbdummycon_startup,
.con_init = sisusbdummycon_init,
@@ -1512,14 +1493,14 @@ sisusb_console_init(struct sisusb_usb_data *sisusb, int first, int last)
{
int i, ret, minor = sisusb->minor;
- down(&disconnect_sem);
+ mutex_lock(&disconnect_mutex);
- down(&sisusb->lock);
+ mutex_lock(&sisusb->lock);
/* Erm.. that should not happen */
if (sisusb->haveconsole || !sisusb->SiS_Pr) {
- up(&sisusb->lock);
- up(&disconnect_sem);
+ mutex_unlock(&sisusb->lock);
+ mutex_unlock(&disconnect_mutex);
return 1;
}
@@ -1529,15 +1510,15 @@ sisusb_console_init(struct sisusb_usb_data *sisusb, int first, int last)
if (first > last ||
first > MAX_NR_CONSOLES ||
last > MAX_NR_CONSOLES) {
- up(&sisusb->lock);
- up(&disconnect_sem);
+ mutex_unlock(&sisusb->lock);
+ mutex_unlock(&disconnect_mutex);
return 1;
}
/* If gfxcore not initialized or no consoles given, quit graciously */
if (!sisusb->gfxinit || first < 1 || last < 1) {
- up(&sisusb->lock);
- up(&disconnect_sem);
+ mutex_unlock(&sisusb->lock);
+ mutex_unlock(&disconnect_mutex);
return 0;
}
@@ -1547,8 +1528,8 @@ sisusb_console_init(struct sisusb_usb_data *sisusb, int first, int last)
/* Set up text mode (and upload default font) */
if (sisusb_reset_text_mode(sisusb, 1)) {
- up(&sisusb->lock);
- up(&disconnect_sem);
+ mutex_unlock(&sisusb->lock);
+ mutex_unlock(&disconnect_mutex);
printk(KERN_ERR
"sisusbvga[%d]: Failed to set up text mode\n",
minor);
@@ -1571,16 +1552,16 @@ sisusb_console_init(struct sisusb_usb_data *sisusb, int first, int last)
/* Allocate screen buffer */
if (!(sisusb->scrbuf = (unsigned long)vmalloc(sisusb->scrbuf_size))) {
- up(&sisusb->lock);
- up(&disconnect_sem);
+ mutex_unlock(&sisusb->lock);
+ mutex_unlock(&disconnect_mutex);
printk(KERN_ERR
"sisusbvga[%d]: Failed to allocate screen buffer\n",
minor);
return 1;
}
- up(&sisusb->lock);
- up(&disconnect_sem);
+ mutex_unlock(&sisusb->lock);
+ mutex_unlock(&disconnect_mutex);
/* Now grab the desired console(s) */
ret = take_over_console(&sisusb_con, first - 1, last - 1, 0);