tridentfb: source code improvements
This patch contains general source code improvments:
- more simple functions are inline
- removes some meaningless output and the VERSION
string as it is no use
- eng_par is moved into the tridentfb_par
- removed small section of code for CyberBladeXPAi1
which is maybe right for only one resolution
and refresh rate and is probably redundant now
- other minor improvements
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c
index 2794115..b6065ef 100644
--- a/drivers/video/tridentfb.c
+++ b/drivers/video/tridentfb.c
@@ -24,8 +24,6 @@
#include <video/vga.h>
#include <video/trident.h>
-#define VERSION "0.7.9-NEWAPI"
-
struct tridentfb_par {
void __iomem *io_virt; /* iospace virtual memory address */
u32 pseudo_pal[16];
@@ -37,9 +35,9 @@
(struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
void (*copy_rect)
(struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
+ unsigned char eng_oper; /* engine operation... */
};
-static unsigned char eng_oper; /* engine operation... */
static struct fb_ops tridentfb_ops;
static struct fb_fix_screeninfo tridentfb_fix = {
@@ -53,7 +51,7 @@
/* defaults which are normally overriden by user values */
/* video mode */
-static char *mode_option __devinitdata = "640x480";
+static char *mode_option __devinitdata = "640x480-8@60";
static int bpp __devinitdata = 8;
static int noaccel __devinitdata;
@@ -84,24 +82,22 @@
module_param(crt, int, 0);
MODULE_PARM_DESC(crt, "Define if CRT is connected");
-static int is_oldclock(int id)
+static inline int is_oldclock(int id)
{
return (id == TGUI9440) ||
(id == TGUI9660) ||
(id == CYBER9320);
}
-static int is_oldprotect(int id)
+static inline int is_oldprotect(int id)
{
- return (id == TGUI9440) ||
- (id == TGUI9660) ||
+ return is_oldclock(id) ||
(id == PROVIDIA9685) ||
- (id == CYBER9320) ||
(id == CYBER9382) ||
(id == CYBER9385);
}
-static int is_blade(int id)
+static inline int is_blade(int id)
{
return (id == BLADE3D) ||
(id == CYBERBLADEE4) ||
@@ -113,27 +109,22 @@
(id == CYBERBLADEAi1D);
}
-static int is_xp(int id)
+static inline int is_xp(int id)
{
return (id == CYBERBLADEXPAi1) ||
(id == CYBERBLADEXPm8) ||
(id == CYBERBLADEXPm16);
}
-static int is3Dchip(int id)
+static inline int is3Dchip(int id)
{
- return ((id == BLADE3D) || (id == CYBERBLADEE4) ||
- (id == CYBERBLADEi7) || (id == CYBERBLADEi7D) ||
+ return is_blade(id) || is_xp(id) ||
(id == CYBER9397) || (id == CYBER9397DVD) ||
(id == CYBER9520) || (id == CYBER9525DVD) ||
- (id == IMAGE975) || (id == IMAGE985) ||
- (id == CYBERBLADEi1) || (id == CYBERBLADEi1D) ||
- (id == CYBERBLADEAi1) || (id == CYBERBLADEAi1D) ||
- (id == CYBERBLADEXPm8) || (id == CYBERBLADEXPm16) ||
- (id == CYBERBLADEXPAi1));
+ (id == IMAGE975) || (id == IMAGE985);
}
-static int iscyber(int id)
+static inline int iscyber(int id)
{
switch (id) {
case CYBER9388:
@@ -153,13 +144,7 @@
return 1;
case CYBER9320:
- case TGUI9660:
- case PROVIDIA9685:
- case IMAGE975:
- case IMAGE985:
- case BLADE3D:
case CYBERBLADEi7: /* VIA MPV4 integrated version */
-
default:
/* case CYBERBLDAEXPm8: Strange */
/* case CYBERBLDAEXPm16: Strange */
@@ -275,7 +260,7 @@
t_outb(par, x, 0x2125);
- eng_oper = x | 0x40;
+ par->eng_oper = x | 0x40;
writemmr(par, 0x2154, v1);
writemmr(par, 0x2150, v1);
@@ -284,10 +269,9 @@
static void xp_wait_engine(struct tridentfb_par *par)
{
- int count, timeout;
+ int count = 0;
+ int timeout = 0;
- count = 0;
- timeout = 0;
while (t_inb(par, STATUS) & 0x80) {
count++;
if (count == 10000000) {
@@ -313,16 +297,14 @@
writemmr(par, OLDDIM, point(h, w));
writemmr(par, OLDDST, point(y, x));
t_outb(par, 0x01, OLDCMD);
- t_outb(par, eng_oper, 0x2125);
+ t_outb(par, par->eng_oper, 0x2125);
}
static void xp_copy_rect(struct tridentfb_par *par,
u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
{
- int direction;
u32 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
-
- direction = 0x0004;
+ int direction = 0x0004;
if ((x1 < x2) && (y1 == y2)) {
direction |= 0x0200;
@@ -602,7 +584,7 @@
t_outb(par, t_inb(par, 0x3D5) & ~0x01, 0x3D5);
}
-static void crtc_unlock(struct tridentfb_par *par)
+static inline void crtc_unlock(struct tridentfb_par *par)
{
write3X4(par, VGA_CRTC_V_SYNC_END,
read3X4(par, VGA_CRTC_V_SYNC_END) & 0x7F);
@@ -642,7 +624,7 @@
}
/* Set pitch */
-static void set_lwidth(struct tridentfb_par *par, int width)
+static inline void set_lwidth(struct tridentfb_par *par, int width)
{
write3X4(par, VGA_CRTC_OFFSET, width & 0xFF);
write3X4(par, AddColReg,
@@ -661,7 +643,7 @@
}
/* For resolutions smaller than FP resolution center */
-static void screen_center(struct tridentfb_par *par)
+static inline void screen_center(struct tridentfb_par *par)
{
write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 0x80);
write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 0x80);
@@ -967,12 +949,12 @@
return 0;
}
-static void shadowmode_on(struct tridentfb_par *par)
+static inline void shadowmode_on(struct tridentfb_par *par)
{
write3CE(par, CyberControl, read3CE(par, CyberControl) | 0x81);
}
-static void shadowmode_off(struct tridentfb_par *par)
+static inline void shadowmode_off(struct tridentfb_par *par)
{
write3CE(par, CyberControl, read3CE(par, CyberControl) & 0x7E);
}
@@ -980,7 +962,7 @@
/* Set the hardware to the requested video mode */
static int tridentfb_set_par(struct fb_info *info)
{
- struct tridentfb_par *par = (struct tridentfb_par *)(info->par);
+ struct tridentfb_par *par = info->par;
u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart, hblankend;
u32 vtotal, vdispend, vsyncstart, vsyncend, vblankstart, vblankend;
struct fb_var_screeninfo *var = &info->var;
@@ -1159,11 +1141,6 @@
write3CE(par, 0x6, 0x05); /* graphics mode */
write3CE(par, 0x7, 0x0F); /* planes? */
- if (par->chip_id == CYBERBLADEXPAi1) {
- /* This fixes snow-effect in 32 bpp */
- write3X4(par, VGA_CRTC_H_SYNC_START, 0x84);
- }
-
/* graphics mode and support 256 color modes */
writeAttr(par, 0x10, 0x41);
writeAttr(par, 0x12, 0x0F); /* planes */
@@ -1238,7 +1215,7 @@
col |= col << 16;
((u32 *)(info->pseudo_palette))[regno] = col;
} else if (bpp == 32) /* ARGB 8888 */
- ((u32*)info->pseudo_palette)[regno] =
+ ((u32 *)info->pseudo_palette)[regno] =
((transp & 0xFF00) << 16) |
((red & 0xFF00) << 8) |
((green & 0xFF00)) |
@@ -1249,7 +1226,7 @@
return 0;
}
-/* Try blanking the screen.For flat panels it does nothing */
+/* Try blanking the screen. For flat panels it does nothing */
static int tridentfb_blank(int blank_mode, struct fb_info *info)
{
unsigned char PMCont, DPMSCont;
@@ -1408,9 +1385,10 @@
/* setup MMIO region */
tridentfb_fix.mmio_start = pci_resource_start(dev, 1);
- tridentfb_fix.mmio_len = chip3D ? 0x20000 : 0x10000;
+ tridentfb_fix.mmio_len = pci_resource_len(dev, 1);
- if (!request_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len, "tridentfb")) {
+ if (!request_mem_region(tridentfb_fix.mmio_start,
+ tridentfb_fix.mmio_len, "tridentfb")) {
debug("request_region failed!\n");
framebuffer_release(info);
return -1;
@@ -1431,7 +1409,8 @@
tridentfb_fix.smem_start = pci_resource_start(dev, 0);
tridentfb_fix.smem_len = get_memsize(default_par);
- if (!request_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len, "tridentfb")) {
+ if (!request_mem_region(tridentfb_fix.smem_start,
+ tridentfb_fix.smem_len, "tridentfb")) {
debug("request_mem_region failed!\n");
disable_mmio(info->par);
err = -1;
@@ -1447,7 +1426,6 @@
goto out_unmap2;
}
- output("%s board found\n", pci_name(dev));
default_par->flatpanel = is_flatpanel(default_par);
if (default_par->flatpanel)
@@ -1477,7 +1455,7 @@
info->var.activate |= FB_ACTIVATE_NOW;
info->device = &dev->dev;
if (register_framebuffer(info) < 0) {
- printk(KERN_ERR "tridentfb: could not register Trident framebuffer\n");
+ printk(KERN_ERR "tridentfb: could not register framebuffer\n");
fb_dealloc_cmap(&info->cmap);
err = -EINVAL;
goto out_unmap2;
@@ -1599,7 +1577,6 @@
return -ENODEV;
tridentfb_setup(option);
#endif
- output("Trident framebuffer %s initializing\n", VERSION);
return pci_register_driver(&tridentfb_pci_driver);
}
diff --git a/include/video/trident.h b/include/video/trident.h
index 7540501..85ced9d 100644
--- a/include/video/trident.h
+++ b/include/video/trident.h
@@ -4,9 +4,9 @@
#endif
#if TRIDENTFB_DEBUG
-#define debug(f,a...) printk("%s:" f, __FUNCTION__ , ## a);mdelay(100);
+#define debug(f, a...) printk("%s:" f, __func__ , ## a);
#else
-#define debug(f,a...)
+#define debug(f, a...)
#endif
#define output(f, a...) pr_info("tridentfb: " f, ## a)