From 454744fd8665eba8721adcd6d84e74c17f8b2b42 Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Tue, 23 Apr 2013 15:23:15 -0700 Subject: Unify and clean up remaining INT15 handlers Some handlers still had 2 variants, others were incorrectly guarded by CONFIG_ variables. This patch straightens them out. This does not touch the siemens/sitemp_g1p1 which provides an interestingly complex solution for the int15 handler. Signed-off-by: Stefan Reinauer Change-Id: I5d74fdf7c2ab1faa96ebc2b5ca5c69398449b069 Reviewed-on: https://gerrit.chromium.org/gerrit/48979 Reviewed-by: Aaron Durbin Reviewed-by: Patrick Georgi Commit-Queue: Stefan Reinauer Tested-by: Stefan Reinauer Reviewed-on: http://review.coreboot.org/4140 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich --- src/mainboard/samsung/stumpy/mainboard.c | 111 ++++++------------------------- 1 file changed, 19 insertions(+), 92 deletions(-) (limited to 'src/mainboard/samsung/stumpy/mainboard.c') diff --git a/src/mainboard/samsung/stumpy/mainboard.c b/src/mainboard/samsung/stumpy/mainboard.c index cbf5af76e6..30612db271 100644 --- a/src/mainboard/samsung/stumpy/mainboard.c +++ b/src/mainboard/samsung/stumpy/mainboard.c @@ -42,15 +42,15 @@ void mainboard_suspend_resume(void) outb(0xcb, 0xb2); } -#if defined(CONFIG_PCI_OPTION_ROM_RUN_REALMODE) && CONFIG_PCI_OPTION_ROM_RUN_REALMODE +#if CONFIG_PCI_ROM_RUN || CONFIG_VGA_ROM_RUN static int int15_handler(void) { int res=0; printk(BIOS_DEBUG, "%s: INT15 function %04x!\n", - __func__, X86_EAX & 0xffff); + __func__, X86_AX); - switch(X86_EAX & 0xffff) { + switch(X86_AX) { case 0x5f34: /* * Set Panel Fitting Hook: @@ -59,10 +59,8 @@ static int int15_handler(void) * bit 0 = Centering (do not set with bit1 or bit2) * 0 = video bios default */ - X86_EAX &= 0xffff0000; - X86_EAX |= 0x005f; - X86_ECX &= 0xffffff00; - X86_ECX |= 0x01; + X86_AX = 0x005f; + X86_CL = 0x01; res = 1; break; case 0x5f35: @@ -77,10 +75,8 @@ static int int15_handler(void) * bit 6 = EFP2 * * bit 7 = LFP2 */ - X86_EAX &= 0xffff0000; - X86_EAX |= 0x005f; - X86_ECX &= 0xffff0000; - X86_ECX |= 0x0000; + X86_AX = 0x005f; + X86_CX = 0x0000; res = 1; break; case 0x5f51: @@ -91,115 +87,46 @@ static int int15_handler(void) * 02h = SVDO-LVDS, LFP driven by SVDO decoder * 03h = eDP, LFP Driven by Int-DisplayPort encoder */ - X86_EAX &= 0xffff0000; - X86_EAX |= 0x005f; - X86_ECX &= 0xffff0000; - X86_ECX |= 0x0003; + X86_AX = 0x005f; + X86_CX = 0x0003; res = 1; break; case 0x5f70: - switch ((X86_ECX >> 8) & 0xff) { + switch (X86_CH) { case 0: /* Get Mux */ - X86_EAX &= 0xffff0000; - X86_EAX |= 0x005f; - X86_ECX &= 0xffff0000; - X86_ECX |= 0x0000; + X86_AX = 0x005f; + X86_CX = 0x0000; res = 1; break; case 1: /* Set Mux */ - X86_EAX &= 0xffff0000; - X86_EAX |= 0x005f; - X86_ECX &= 0xffff0000; - X86_ECX |= 0x0000; + X86_AX = 0x005f; + X86_CX = 0x0000; res = 1; break; case 2: /* Get SG/Non-SG mode */ - X86_EAX &= 0xffff0000; - X86_EAX |= 0x005f; - X86_ECX &= 0xffff0000; - X86_ECX |= 0x0000; + X86_AX = 0x005f; + X86_CX = 0x0000; res = 1; break; default: /* FIXME: Interrupt was not handled, but return sucess? */ printk(BIOS_DEBUG, "Unknown INT15 5f70 function: 0x%02x\n", - ((X86_ECX >> 8) & 0xff)); + X86_CH); return 1; } break; default: - printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", - X86_EAX & 0xffff); + printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", X86_AX); break; } return res; } #endif -#if defined(CONFIG_PCI_OPTION_ROM_RUN_YABEL) && CONFIG_PCI_OPTION_ROM_RUN_YABEL -static int int15_handler(void) -{ - printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n", - __func__, X86_AX, X86_BX, X86_CX, X86_DX); - - switch (X86_AX) { - case 0x5f34: - /* - * Set Panel Fitting Hook: - * bit 2 = Graphics Stretching - * bit 1 = Text Stretching - * bit 0 = Centering (do not set with bit1 or bit2) - */ - X86_AX = 0x005f; - X86_CX = 0x0001; - break; - case 0x5f35: - /* - * Boot Display Device Hook: - * bit 0 = CRT - * bit 1 = TV (eDP) * - * bit 2 = EFP * - * bit 3 = LFP - * bit 4 = CRT2 - * bit 5 = TV2 (eDP) * - * bit 6 = EFP2 * - * bit 7 = LFP2 - */ - X86_AX = 0x005f; - X86_CX = 0x0000; - break; - case 0x5f51: - /* - * Hook to select active LFP configuration: - * 00h = No LVDS, VBIOS does not enable LVDS - * 01h = Int-LVDS, LFP driven by integrated LVDS decoder - * 02h = SVDO-LVDS, LFP driven by SVDO decoder - * 03h = eDP, LFP Driven by Int-DisplayPort encoder - */ - X86_AX = 0x005f; - X86_CX = 3; - break; - case 0x5f70: - /* Unknown */ - X86_AX = 0x005f; - X86_CX = 0; - break; - default: - /* Interrupt was not handled */ - printk(BIOS_DEBUG, "Unknown INT15 function: 0x%04x\n", - X86_AX); - return 0; - } - - /* Interrupt handled */ - return 1; -} -#endif - /* Audio Setup */ extern const u32 * cim_verb_data; @@ -220,7 +147,7 @@ static void verb_setup(void) static void mainboard_enable(device_t dev) { -#if CONFIG_PCI_OPTION_ROM_RUN_YABEL || CONFIG_PCI_OPTION_ROM_RUN_REALMODE +#if CONFIG_PCI_ROM_RUN || CONFIG_VGA_ROM_RUN /* Install custom int15 handler for VGA OPROM */ mainboard_interrupt_handlers(0x15, &int15_handler); #endif -- cgit v1.2.3