Nico Huber (nico.h@gmx.de) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/17279
-gerrit
commit a9e82dd13f7b6f0fd966f21e19c350fffd0bbbcd Author: Nico Huber nico.huber@secunet.com Date: Mon Nov 7 17:24:47 2016 +0100
drivers/intel/gma: Add textmode support with libgfxinit
Add an alternative gfxinit implementation for textmode. The legacy VGA plane and textmode is configured through coreboot provided functions. libgfxinit uses this plane as alternative to the usual high resolution plane.
Change-Id: Iad0754c50fc6faec35f49583fe1c7cb50ac6c0c5 Signed-off-by: Nico Huber nico.huber@secunet.com --- src/device/Kconfig | 1 + src/drivers/intel/gma/Makefile.inc | 6 +- src/drivers/intel/gma/gma.adb | 117 --------------------------------- src/drivers/intel/gma/hires_fb/gma.adb | 117 +++++++++++++++++++++++++++++++++ src/drivers/intel/gma/text_fb/gma.adb | 75 +++++++++++++++++++++ 5 files changed, 198 insertions(+), 118 deletions(-)
diff --git a/src/device/Kconfig b/src/device/Kconfig index d238547..efe1633 100644 --- a/src/device/Kconfig +++ b/src/device/Kconfig @@ -45,6 +45,7 @@ config MAINBOARD_DO_NATIVE_VGA_INIT config MAINBOARD_HAS_LIBGFXINIT def_bool n select MAINBOARD_HAS_NATIVE_VGA_INIT + select MAINBOARD_HAS_NATIVE_VGA_INIT_TEXTMODECFG help Selected by mainboards that implement support for `libgfxinit`. Usually this requires a list of ports to be probed for displays. diff --git a/src/drivers/intel/gma/Makefile.inc b/src/drivers/intel/gma/Makefile.inc index a4e007c..d4d6c08 100644 --- a/src/drivers/intel/gma/Makefile.inc +++ b/src/drivers/intel/gma/Makefile.inc @@ -40,6 +40,10 @@ CONFIG_GFX_GMA_DEFAULT_MMIO := 0 # dummy, will be overwritten at runtime subdirs-y += ../../../../3rdparty/libgfxinit
ramstage-y += gma.ads -ramstage-y += gma.adb +ifeq ($(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE),y) +ramstage-y += hires_fb/gma.adb +else +ramstage-y += text_fb/gma.adb +endif
endif # CONFIG_MAINBOARD_USE_LIBGFXINIT diff --git a/src/drivers/intel/gma/gma.adb b/src/drivers/intel/gma/gma.adb deleted file mode 100644 index 7ebc4f8..0000000 --- a/src/drivers/intel/gma/gma.adb +++ /dev/null @@ -1,117 +0,0 @@ -with HW.GFX; -with HW.GFX.Framebuffer_Filler; -with HW.GFX.GMA; - -use HW.GFX; -use HW.GFX.GMA; - -with GMA.Mainboard; - -package body GMA -is - - vbe_valid : boolean := false; - - linear_fb_addr : word64; - - fb : Framebuffer_Type; - - function vbe_mode_info_valid return Interfaces.C.int - is - begin - return (if vbe_valid then 1 else 0); - end vbe_mode_info_valid; - - procedure fill_lb_framebuffer (framebuffer : out lb_framebuffer) - is - use type word32; - begin - framebuffer := - (tag => 0, - size => 0, - physical_address => linear_fb_addr, - x_resolution => word32 (fb.Width), - y_resolution => word32 (fb.Height), - bytes_per_line => 4 * word32 (fb.Stride), - bits_per_pixel => 32, - reserved_mask_pos => 24, - reserved_mask_size => 8, - red_mask_pos => 16, - red_mask_size => 8, - green_mask_pos => 8, - green_mask_size => 8, - blue_mask_pos => 0, - blue_mask_size => 8); - end fill_lb_framebuffer; - - ---------------------------------------------------------------------------- - - procedure gfxinit - (mmio_base : in word64; - linear_fb : in word64; - phys_fb : in word32; - lightup_ok : out Interfaces.C.int) - is - use type pos32; - - ports : Port_List; - configs : Configs_Type; - - success : boolean; - - stride : Width_Type; - max_h : pos16 := 1; - max_v : pos16 := 1; - begin - lightup_ok := 0; - - HW.GFX.GMA.Initialize - (MMIO_Base => mmio_base, - Success => success); - - if success then - ports := Mainboard.ports; - HW.GFX.GMA.Scan_Ports (configs, ports); - - if configs (Primary).Port /= Disabled then - for i in Config_Index loop - exit when configs (i).Port = Disabled; - - max_h := pos16'max (max_h, configs (i).Mode.H_Visible); - max_v := pos16'max (max_v, configs (i).Mode.V_Visible); - end loop; - - stride := ((Width_Type (max_h) + 63) / 64) * 64; - for i in Config_Index loop - exit when configs (i).Port = Disabled; - - configs (i).Framebuffer := - (Width => Width_Type (configs (i).Mode.H_Visible), - Height => Height_Type (configs (i).Mode.V_Visible), - BPC => 8, - Stride => stride, - Offset => 0); - end loop; - - HW.GFX.GMA.Dump_Configs (configs); - - fb := - (Width => Width_Type (max_h), - Height => Height_Type (max_v), - BPC => 8, - Stride => stride, - Offset => 0); - HW.GFX.GMA.Setup_Default_GTT (fb, phys_fb); - HW.GFX.Framebuffer_Filler.Fill (linear_fb, fb); - - HW.GFX.GMA.Update_Outputs (configs); - - linear_fb_addr := linear_fb; - vbe_valid := true; - - lightup_ok := 1; - end if; - end if; - end gfxinit; - -end GMA; diff --git a/src/drivers/intel/gma/hires_fb/gma.adb b/src/drivers/intel/gma/hires_fb/gma.adb new file mode 100644 index 0000000..7ebc4f8 --- /dev/null +++ b/src/drivers/intel/gma/hires_fb/gma.adb @@ -0,0 +1,117 @@ +with HW.GFX; +with HW.GFX.Framebuffer_Filler; +with HW.GFX.GMA; + +use HW.GFX; +use HW.GFX.GMA; + +with GMA.Mainboard; + +package body GMA +is + + vbe_valid : boolean := false; + + linear_fb_addr : word64; + + fb : Framebuffer_Type; + + function vbe_mode_info_valid return Interfaces.C.int + is + begin + return (if vbe_valid then 1 else 0); + end vbe_mode_info_valid; + + procedure fill_lb_framebuffer (framebuffer : out lb_framebuffer) + is + use type word32; + begin + framebuffer := + (tag => 0, + size => 0, + physical_address => linear_fb_addr, + x_resolution => word32 (fb.Width), + y_resolution => word32 (fb.Height), + bytes_per_line => 4 * word32 (fb.Stride), + bits_per_pixel => 32, + reserved_mask_pos => 24, + reserved_mask_size => 8, + red_mask_pos => 16, + red_mask_size => 8, + green_mask_pos => 8, + green_mask_size => 8, + blue_mask_pos => 0, + blue_mask_size => 8); + end fill_lb_framebuffer; + + ---------------------------------------------------------------------------- + + procedure gfxinit + (mmio_base : in word64; + linear_fb : in word64; + phys_fb : in word32; + lightup_ok : out Interfaces.C.int) + is + use type pos32; + + ports : Port_List; + configs : Configs_Type; + + success : boolean; + + stride : Width_Type; + max_h : pos16 := 1; + max_v : pos16 := 1; + begin + lightup_ok := 0; + + HW.GFX.GMA.Initialize + (MMIO_Base => mmio_base, + Success => success); + + if success then + ports := Mainboard.ports; + HW.GFX.GMA.Scan_Ports (configs, ports); + + if configs (Primary).Port /= Disabled then + for i in Config_Index loop + exit when configs (i).Port = Disabled; + + max_h := pos16'max (max_h, configs (i).Mode.H_Visible); + max_v := pos16'max (max_v, configs (i).Mode.V_Visible); + end loop; + + stride := ((Width_Type (max_h) + 63) / 64) * 64; + for i in Config_Index loop + exit when configs (i).Port = Disabled; + + configs (i).Framebuffer := + (Width => Width_Type (configs (i).Mode.H_Visible), + Height => Height_Type (configs (i).Mode.V_Visible), + BPC => 8, + Stride => stride, + Offset => 0); + end loop; + + HW.GFX.GMA.Dump_Configs (configs); + + fb := + (Width => Width_Type (max_h), + Height => Height_Type (max_v), + BPC => 8, + Stride => stride, + Offset => 0); + HW.GFX.GMA.Setup_Default_GTT (fb, phys_fb); + HW.GFX.Framebuffer_Filler.Fill (linear_fb, fb); + + HW.GFX.GMA.Update_Outputs (configs); + + linear_fb_addr := linear_fb; + vbe_valid := true; + + lightup_ok := 1; + end if; + end if; + end gfxinit; + +end GMA; diff --git a/src/drivers/intel/gma/text_fb/gma.adb b/src/drivers/intel/gma/text_fb/gma.adb new file mode 100644 index 0000000..bbb6d74 --- /dev/null +++ b/src/drivers/intel/gma/text_fb/gma.adb @@ -0,0 +1,75 @@ +with HW.GFX; +with HW.GFX.GMA; + +use HW.GFX; +use HW.GFX.GMA; + +with GMA.Mainboard; + +package body GMA +is + + function vbe_mode_info_valid return Interfaces.C.int + is + begin + return 0; + end vbe_mode_info_valid; + + procedure fill_lb_framebuffer (framebuffer : out lb_framebuffer) + is + begin + null; + end fill_lb_framebuffer; + + ---------------------------------------------------------------------------- + + procedure gfxinit + (mmio_base : in word64; + linear_fb : in word64; + phys_fb : in word32; + lightup_ok : out Interfaces.C.int) + is + ports : Port_List; + configs : Configs_Type; + + success : boolean; + + -- from pc80/vga driver + procedure vga_io_init; + pragma Import (C, vga_io_init, "vga_io_init"); + procedure vga_textmode_init; + pragma Import (C, vga_textmode_init, "vga_textmode_init"); + begin + lightup_ok := 0; + + HW.GFX.GMA.Initialize + (MMIO_Base => mmio_base, + Success => success); + + if success then + ports := Mainboard.ports; + HW.GFX.GMA.Scan_Ports + (Configs => configs, + Ports => ports, + Max_Pipe => Primary); + + if configs (Primary).Port /= Disabled then + vga_io_init; + vga_textmode_init; + + configs (Primary).Framebuffer := + (Width => 640, + Height => 400, + BPC => Auto_BPC, -- ignored for VGA plane + Stride => 320, -- ignored + Offset => VGA_PLANE_FRAMEBUFFER_OFFSET); + + HW.GFX.GMA.Dump_Configs (configs); + HW.GFX.GMA.Update_Outputs (configs); + + lightup_ok := 1; + end if; + end if; + end gfxinit; + +end GMA;
-
Nico Huber