관리-도구

편집 파일: sticore.h

/* SPDX-License-Identifier: GPL-2.0 */ #ifndef STICORE_H #define STICORE_H struct device; /* generic STI structures & functions */ #define MAX_STI_ROMS 4 /* max no. of ROMs which this driver handles */ #define STI_REGION_MAX 8 /* hardcoded STI constants */ #define STI_DEV_NAME_LENGTH 32 #define STI_MONITOR_MAX 256 #define STI_FONT_HPROMAN8 1 #define STI_FONT_KANA8 2 #define ALT_CODE_TYPE_UNKNOWN 0x00 /* alt code type values */ #define ALT_CODE_TYPE_PA_RISC_64 0x01 /* The latency of the STI functions cannot really be reduced by setting * this to 0; STI doesn't seem to be designed to allow calling a different * function (or the same function with different arguments) after a * function exited with 1 as return value. * * As all of the functions below could be called from interrupt context, * we have to spin_lock_irqsave around the do { ret = bla(); } while(ret==1) * block. Really bad latency there. * * Probably the best solution to all this is have the generic code manage * the screen buffer and a kernel thread to call STI occasionally. * * Luckily, the frame buffer guys have the same problem so we can just wait * for them to fix it and steal their solution. prumpf */ #include <asm/io.h> #define STI_WAIT 1 #define STI_PTR(p) ( virt_to_phys(p) ) #define PTR_STI(p) ( phys_to_virt((unsigned long)p) ) #define sti_onscreen_x(sti) (sti->glob_cfg->onscreen_x) #define sti_onscreen_y(sti) (sti->glob_cfg->onscreen_y) /* sti_font_xy() use the native font ROM ! */ #define sti_font_x(sti) (PTR_STI(sti->font)->width) #define sti_font_y(sti) (PTR_STI(sti->font)->height) #ifdef CONFIG_64BIT #define STI_LOWMEM (GFP_KERNEL | GFP_DMA) #else #define STI_LOWMEM (GFP_KERNEL) #endif /* STI function configuration structs */ typedef union region { struct { u32 offset : 14; /* offset in 4kbyte page */ u32 sys_only : 1; /* don't map to user space */ u32 cache : 1; /* map to data cache */ u32 btlb : 1; /* map to block tlb */ u32 last : 1; /* last region in list */ u32 length : 14; /* length in 4kbyte page */ } region_desc; u32 region; /* complete region value */ } region_t; #define REGION_OFFSET_TO_PHYS( rt, hpa ) \ (((rt).region_desc.offset << 12) + (hpa)) struct sti_glob_cfg_ext { u8 curr_mon; /* current monitor configured */ u8 friendly_boot; /* in friendly boot mode */ s16 power; /* power calculation (in Watts) */ s32 freq_ref; /* frequency reference */ u32 sti_mem_addr; /* pointer to global sti memory (size=sti_mem_request) */ u32 future_ptr; /* pointer to future data */ }; struct sti_glob_cfg { s32 text_planes; /* number of planes used for text */ s16 onscreen_x; /* screen width in pixels */ s16 onscreen_y; /* screen height in pixels */ s16 offscreen_x; /* offset width in pixels */ s16 offscreen_y; /* offset height in pixels */ s16 total_x; /* frame buffer width in pixels */ s16 total_y; /* frame buffer height in pixels */ u32 region_ptrs[STI_REGION_MAX]; /* region pointers */ s32 reent_lvl; /* storage for reentry level value */ u32 save_addr; /* where to save or restore reentrant state */ u32 ext_ptr; /* pointer to extended glob_cfg data structure */ }; /* STI init function structs */ struct sti_init_flags { u32 wait : 1; /* should routine idle wait or not */ u32 reset : 1; /* hard reset the device? */ u32 text : 1; /* turn on text display planes? */ u32 nontext : 1; /* turn on non-text display planes? */ u32 clear : 1; /* clear text display planes? */ u32 cmap_blk : 1; /* non-text planes cmap black? */ u32 enable_be_timer : 1; /* enable bus error timer */ u32 enable_be_int : 1; /* enable bus error timer interrupt */ u32 no_chg_tx : 1; /* don't change text settings */ u32 no_chg_ntx : 1; /* don't change non-text settings */ u32 no_chg_bet : 1; /* don't change berr timer settings */ u32 no_chg_bei : 1; /* don't change berr int settings */ u32 init_cmap_tx : 1; /* initialize cmap for text planes */ u32 cmt_chg : 1; /* change current monitor type */ u32 retain_ie : 1; /* don't allow reset to clear int enables */ u32 caller_bootrom : 1; /* set only by bootrom for each call */ u32 caller_kernel : 1; /* set only by kernel for each call */ u32 caller_other : 1; /* set only by non-[BR/K] caller */ u32 pad : 14; /* pad to word boundary */ u32 future_ptr; /* pointer to future data */ }; struct sti_init_inptr_ext { u8 config_mon_type; /* configure to monitor type */ u8 pad[1]; /* pad to word boundary */ u16 inflight_data; /* inflight data possible on PCI */ u32 future_ptr; /* pointer to future data */ }; struct sti_init_inptr { s32 text_planes; /* number of planes to use for text */ u32 ext_ptr; /* pointer to extended init_graph inptr data structure*/ }; struct sti_init_outptr { s32 errno; /* error number on failure */ s32 text_planes; /* number of planes used for text */ u32 future_ptr; /* pointer to future data */ }; /* STI configuration function structs */ struct sti_conf_flags { u32 wait : 1; /* should routine idle wait or not */ u32 pad : 31; /* pad to word boundary */ u32 future_ptr; /* pointer to future data */ }; struct sti_conf_inptr { u32 future_ptr; /* pointer to future data */ }; struct sti_conf_outptr_ext { u32 crt_config[3]; /* hardware specific X11/OGL information */ u32 crt_hdw[3]; u32 future_ptr; }; struct sti_conf_outptr { s32 errno; /* error number on failure */ s16 onscreen_x; /* screen width in pixels */ s16 onscreen_y; /* screen height in pixels */ s16 offscreen_x; /* offscreen width in pixels */ s16 offscreen_y; /* offscreen height in pixels */ s16 total_x; /* frame buffer width in pixels */ s16 total_y; /* frame buffer height in pixels */ s32 bits_per_pixel; /* bits/pixel device has configured */ s32 bits_used; /* bits which can be accessed */ s32 planes; /* number of fb planes in system */ u8 dev_name[STI_DEV_NAME_LENGTH]; /* null terminated product name */ u32 attributes; /* flags denoting attributes */ u32 ext_ptr; /* pointer to future data */ }; struct sti_rom { u8 type[4]; u8 res004; u8 num_mons; u8 revno[2]; u32 graphics_id[2]; u32 font_start; u32 statesize; u32 last_addr; u32 region_list; u16 reentsize; u16 maxtime; u32 mon_tbl_addr; u32 user_data_addr; u32 sti_mem_req; u32 user_data_size; u16 power; u8 bus_support; u8 ext_bus_support; u8 alt_code_type; u8 ext_dd_struct[3]; u32 cfb_addr; u32 init_graph; u32 state_mgmt; u32 font_unpmv; u32 block_move; u32 self_test; u32 excep_hdlr; u32 inq_conf; u32 set_cm_entry; u32 dma_ctrl; u8 res040[7 * 4]; u32 init_graph_addr; u32 state_mgmt_addr; u32 font_unp_addr; u32 block_move_addr; u32 self_test_addr; u32 excep_hdlr_addr; u32 inq_conf_addr; u32 set_cm_entry_addr; u32 image_unpack_addr; u32 pa_risx_addrs[7]; }; struct sti_rom_font { u16 first_char; u16 last_char; u8 width; u8 height; u8 font_type; /* language type */ u8 bytes_per_char; s32 next_font; /* note: signed int */ u8 underline_height; u8 underline_pos; u8 res008[2]; }; /* sticore internal font handling */ struct sti_cooked_font { struct sti_rom_font *raw; /* native ptr for STI functions */ void *raw_ptr; /* kmalloc'ed font data */ struct sti_cooked_font *next_font; int height, width; int refcount; u32 crc; }; struct sti_cooked_rom { struct sti_rom *raw; struct sti_cooked_font *font_start; }; /* STI font printing function structs */ struct sti_font_inptr { u32 font_start_addr; /* address of font start */ s16 index; /* index into font table of character */ u8 fg_color; /* foreground color of character */ u8 bg_color; /* background color of character */ s16 dest_x; /* X location of character upper left */ s16 dest_y; /* Y location of character upper left */ u32 future_ptr; /* pointer to future data */ }; struct sti_font_flags { u32 wait : 1; /* should routine idle wait or not */ u32 non_text : 1; /* font unpack/move in non_text planes =1, text =0 */ u32 pad : 30; /* pad to word boundary */ u32 future_ptr; /* pointer to future data */ }; struct sti_font_outptr { s32 errno; /* error number on failure */ u32 future_ptr; /* pointer to future data */ }; /* STI blockmove structs */ struct sti_blkmv_flags { u32 wait : 1; /* should routine idle wait or not */ u32 color : 1; /* change color during move? */ u32 clear : 1; /* clear during move? */ u32 non_text : 1; /* block move in non_text planes =1, text =0 */ u32 pad : 28; /* pad to word boundary */ u32 future_ptr; /* pointer to future data */ }; struct sti_blkmv_inptr { u8 fg_color; /* foreground color after move */ u8 bg_color; /* background color after move */ s16 src_x; /* source upper left pixel x location */ s16 src_y; /* source upper left pixel y location */ s16 dest_x; /* dest upper left pixel x location */ s16 dest_y; /* dest upper left pixel y location */ s16 width; /* block width in pixels */ s16 height; /* block height in pixels */ u32 future_ptr; /* pointer to future data */ }; struct sti_blkmv_outptr { s32 errno; /* error number on failure */ u32 future_ptr; /* pointer to future data */ }; /* sti_all_data is an internal struct which needs to be allocated in * low memory (< 4GB) if STI is used with 32bit STI on a 64bit kernel */ struct sti_all_data { struct sti_glob_cfg glob_cfg; struct sti_glob_cfg_ext glob_cfg_ext; struct sti_conf_inptr inq_inptr; struct sti_conf_outptr inq_outptr; /* configuration */ struct sti_conf_outptr_ext inq_outptr_ext; struct sti_init_inptr_ext init_inptr_ext; struct sti_init_inptr init_inptr; struct sti_init_outptr init_outptr; struct sti_blkmv_inptr blkmv_inptr; struct sti_blkmv_outptr blkmv_outptr; struct sti_font_inptr font_inptr; struct sti_font_outptr font_outptr; /* leave as last entries */ unsigned long save_addr[1024 / sizeof(unsigned long)]; /* min 256 bytes which is STI default, max sti->sti_mem_request */ unsigned long sti_mem_addr[256 / sizeof(unsigned long)]; /* do not add something below here ! */ }; /* internal generic STI struct */ struct sti_struct { spinlock_t lock; /* char **mon_strings; */ int sti_mem_request; u32 graphics_id[2]; struct sti_cooked_rom *rom; unsigned long font_unpmv; unsigned long block_move; unsigned long init_graph; unsigned long inq_conf; /* all following fields are initialized by the generic routines */ int text_planes; region_t regions[STI_REGION_MAX]; unsigned long regions_phys[STI_REGION_MAX]; struct sti_glob_cfg *glob_cfg; /* points into sti_all_data */ int wordmode; struct sti_cooked_font *font; /* ptr to selected font (cooked) */ struct pci_dev *pd; /* PCI data structures (pg. 17ff from sti.pdf) */ u8 rm_entry[16]; /* pci region mapper array == pci config space offset */ /* pointer to the fb_info where this STI device is used */ struct fb_info *info; /* pointer to the parent device */ struct device *dev; /* pointer to all internal data */ struct sti_all_data *sti_data; }; /* sticore interface functions */ struct sti_struct *sti_get_rom(unsigned int index); /* 0: default sti */ void sti_font_convert_bytemode(struct sti_struct *sti, struct sti_cooked_font *f); /* sticore main function to call STI firmware */ int sti_call(const struct sti_struct *sti, unsigned long func, const void *flags, void *inptr, void *outptr, struct sti_glob_cfg *glob_cfg); /* functions to call the STI ROM directly */ void sti_putc(struct sti_struct *sti, int c, int y, int x, struct sti_cooked_font *font); void sti_set(struct sti_struct *sti, int src_y, int src_x, int height, int width, u8 color); void sti_clear(struct sti_struct *sti, int src_y, int src_x, int height, int width, int c, struct sti_cooked_font *font); void sti_bmove(struct sti_struct *sti, int src_y, int src_x, int dst_y, int dst_x, int height, int width, struct sti_cooked_font *font); #endif /* STICORE_H */