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mdacon: align code in mda_detect properly

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This is just a whitespace cleanup. The code was a mess having multiple
commands on one line like:
scr_writew(0xAA55, p); if (scr_readw(p) == 0xAA55) count++;

Indent that properly and make it nicer for reading.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
This commit is contained in:
Jiri Slaby 2017-06-14 17:40:55 +02:00 committed by Bartlomiej Zolnierkiewicz
parent 5b45fe6b39
commit 08cfe9f081
1 changed files with 35 additions and 25 deletions
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60
drivers/video/console/mdacon.c
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@ -208,10 +208,17 @@ static int mda_detect(void)
p = (u16 *) mda_vram_base;
q = (u16 *) (mda_vram_base + 0x01000);
p_save = scr_readw(p); q_save = scr_readw(q);
p_save = scr_readw(p);
q_save = scr_readw(q);
scr_writew(0xAA55, p);
if (scr_readw(p) == 0xAA55)
count++;
scr_writew(0x55AA, p);
if (scr_readw(p) == 0x55AA)
count++;
scr_writew(0xAA55, p); if (scr_readw(p) == 0xAA55) count++;
scr_writew(0x55AA, p); if (scr_readw(p) == 0x55AA) count++;
scr_writew(p_save, p);
if (count != 2) {
@ -220,13 +227,18 @@ static int mda_detect(void)
/* check if we have 4K or 8K */
scr_writew(0xA55A, q); scr_writew(0x0000, p);
if (scr_readw(q) == 0xA55A) count++;
scr_writew(0xA55A, q);
scr_writew(0x0000, p);
if (scr_readw(q) == 0xA55A)
count++;
scr_writew(0x5AA5, q); scr_writew(0x0000, p);
if (scr_readw(q) == 0x5AA5) count++;
scr_writew(0x5AA5, q);
scr_writew(0x0000, p);
if (scr_readw(q) == 0x5AA5)
count++;
scr_writew(p_save, p); scr_writew(q_save, q);
scr_writew(p_save, p);
scr_writew(q_save, q);
if (count == 4) {
mda_vram_len = 0x02000;
@ -240,14 +252,12 @@ static int mda_detect(void)
/* Edward: These two mess `tests' mess up my cursor on bootup */
/* cursor low register */
if (! test_mda_b(0x66, 0x0f)) {
if (!test_mda_b(0x66, 0x0f))
return 0;
}
/* cursor low register */
if (! test_mda_b(0x99, 0x0f)) {
if (!test_mda_b(0x99, 0x0f))
return 0;
}
#endif
/* See if the card is a Hercules, by checking whether the vsync
@ -257,25 +267,25 @@ static int mda_detect(void)
p_save = q_save = inb_p(mda_status_port) & MDA_STATUS_VSYNC;
for (count=0; count < 50000 && p_save == q_save; count++) {
for (count = 0; count < 50000 && p_save == q_save; count++) {
q_save = inb(mda_status_port) & MDA_STATUS_VSYNC;
udelay(2);
}
if (p_save != q_save) {
switch (inb_p(mda_status_port) & 0x70) {
case 0x10:
mda_type = TYPE_HERCPLUS;
mda_type_name = "HerculesPlus";
break;
case 0x50:
mda_type = TYPE_HERCCOLOR;
mda_type_name = "HerculesColor";
break;
default:
mda_type = TYPE_HERC;
mda_type_name = "Hercules";
break;
case 0x10:
mda_type = TYPE_HERCPLUS;
mda_type_name = "HerculesPlus";
break;
case 0x50:
mda_type = TYPE_HERCCOLOR;
mda_type_name = "HerculesColor";
break;
default:
mda_type = TYPE_HERC;
mda_type_name = "Hercules";
break;
}
}