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>

1 files changed, 30 insertions, 53 deletions

diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c
index 279411523ed9..b6065effc5e0 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 {
                 (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 @@ static struct fb_fix_screeninfo tridentfb_fix = {
 /* 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_PARM_DESC(fp, "Define if flatpanel is connected");
 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 @@ static int is_blade(int id)
                 (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 @@ static int iscyber(int id)
                 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 @@ static void xp_init_accel(struct tridentfb_par *par, int pitch, int bpp)
 
         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_init_accel(struct tridentfb_par *par, int pitch, int bpp)
 
 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 @@ static void xp_fill_rect(struct tridentfb_par *par,
         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 @@ static void disable_mmio(struct tridentfb_par *par)
         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 @@ static int __devinit get_nativex(struct tridentfb_par *par)
 }
 
 /* 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 @@ static void screen_stretch(struct tridentfb_par *par)
 }
 
 /* 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 @@ static int tridentfb_pan_display(struct fb_var_screeninfo *var,
         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 @@ static void shadowmode_off(struct tridentfb_par *par)
 /* 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 @@ static int tridentfb_set_par(struct fb_info *info)
         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 @@ static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green,
                         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 @@ static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green,
         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 @@ static int __devinit trident_pci_probe(struct pci_dev *dev,
 
         /* 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 @@ static int __devinit trident_pci_probe(struct pci_dev *dev,
         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 @@ static int __devinit trident_pci_probe(struct pci_dev *dev,
                 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 @@ static int __devinit trident_pci_probe(struct pci_dev *dev,
         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 @@ static int __init tridentfb_init(void)
                 return -ENODEV;
         tridentfb_setup(option);
 #endif
-        output("Trident framebuffer %s initializing\n", VERSION);
         return pci_register_driver(&tridentfb_pci_driver);
 }