arch/ppc-sam440/boot/parthenope/src/context.h

   1 #ifndef CONTEXT_H_
   2 #define CONTEXT_H_
   3
   4 /*
   5  * $Id$
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  */
  22
  23 #include "uboot.h"
  24
  25 /* The version of context_t we hope to got from U-Boot */
  26 #define CALLBACK_VERSION 4
  27
  28 typedef struct context {
  29         unsigned int c_version;
  30         void (*c_printf) (const char *fmt, ...);
  31         int (*c_getc) (void);
  32
  33         void *c_scan_list;
  34         list_t *c_devices_list;
  35         SCAN_HANDLE c_curr_device;
  36
  37          SCAN_HANDLE(*c_start_unit_scan) (const void *scan_list,
  38                                           uint32_t * const blocksize);
  39          SCAN_HANDLE(*c_next_unit_scan) (SCAN_HANDLE h,
  40                                          unsigned int *const blocksize);
  41         int (*c_open_specific_unit) (const SCAN_HANDLE h);
  42         void (*c_end_unit_scan) (SCAN_HANDLE h);
  43         void (*c_end_global_scan) (void);
  44         int (*c_loadsector) (const unsigned int sectn,
  45                              const unsigned int sect_size,
  46                              const unsigned int numb_sects,
  47                              void *const dest_buf);
  48
  49         int (*c_my_netloop) (char *filename, void *dump_here);
  50
  51         char *(*c_getenv) (unsigned char *);
  52         void (*c_setenv) (char *, char *);
  53
  54         void *(*c_alloc_mem_for_iobuffers) (const int size);
  55         void *(*c_alloc_mem_for_kickmodule) (const int size);
  56         void *(*c_alloc_mem_for_execNG) (const int size);
  57         void *(*c_alloc_mem_for_anythingelse) (const int size);
  58         void *(*c_alloc_mem_for_bootloader) (const int size);
  59         void (*c_free_mem) (void *const loc);
  60
  61         void *(*c_get_board_info) (void);
  62         int (*c_BZ2_bzBuffToBuffDecompress) (char *dest,
  63                                              unsigned int *destLen,
  64                                              char *source,
  65                                              unsigned int sourceLen,
  66                                              int small, int verbosity);
  67
  68         void (*c_video_clear) (void);
  69         void (*c_video_draw_box) (int style, int attr, char *title,
  70                                   int separate, int x, int y, int w, int h);
  71         void (*c_video_draw_text) (int x, int y, int attr, char *text,
  72                                    int field);
  73         void (*c_video_repeat_char) (int x, int y, int repcnt, int repchar,
  74                                      int attr);
  75
  76         unsigned short (*c_set_partial_scroll_limits) (const short start,
  77                                                        const short end);
  78         void (*c_get_partial_scroll_limits) (short *const start,
  79                                              short *const end);
  80         int (*c_video_get_key) (void);
  81
  82         int (*c_do_bootm) (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
  83         void *(*c_memmove) (void *dest, const void *src, int count);
  84         void (*c_set_load_addr) (void *const la);
  85
  86         int (*c_tstc) (void);
  87         void (*c_udelay) (unsigned long);
  88         int (*c_sprintf) (char *buf, const char *fmt, ...);
  89
  90         int (*c_ext2fs_set_blk_dev_full) (block_dev_desc_t * const rbdd,
  91                                           disk_partition_t * const p);
  92         int (*c_ext2fs_open) (char *filename);
  93         int (*c_ext2fs_read) (char *buf, unsigned len);
  94         int (*c_ext2fs_mount) (unsigned part_length);
  95         int (*c_ext2fs_close) (void);
  96         int (*c_bootu) (char *device_str);
  97 } context_t;
  98
  99 void context_init(context_t * ctx);
 100 inline context_t *context_get(void);
 101
 102 /* terminal IO functions */
 103 #define printf(FMT, ARGS...) context_get()->c_printf((FMT), ##ARGS)
 104 inline int getc(void);
 105
 106 /* devices functions */
 107 inline void *get_scan_list(void);
 108 inline list_t *get_devices_list(void);
 109 inline SCAN_HANDLE get_curr_device(void);
 110 inline SCAN_HANDLE start_unit_scan(const void *scan_list,
 111                                    uint32_t * const blocksize);
 112 inline SCAN_HANDLE next_unit_scan(SCAN_HANDLE h, unsigned int *const blocksize);
 113 inline int open_specific_unit(const SCAN_HANDLE h);
 114 inline void end_unit_scan(SCAN_HANDLE h);
 115 inline void end_global_scan(void);
 116 inline int loadsector(const unsigned int sectn,
 117                       const unsigned int sect_size,
 118                       const unsigned int numb_sects, void *const dest_buf);
 119 inline int netloop(char *filename, void *dump_here);
 120
 121 /* memory functions */
 122 inline void *malloc(int size);
 123 inline void free(void *ptr);
 124 inline void *memmove(void *dest, const void *src, int count);
 125
 126 /* ENV functions */
 127 inline char *getenv(unsigned char *var);
 128 inline void setenv(char *var, char *value);
 129
 130 /* misc functions */
 131 inline int tstc(void);
 132 inline void udelay(unsigned long t);
 133 #define sprintf(BUF, FMT, ARGS...) context_get()->c_sprintf((BUF), (FMT), ##ARGS)
 134
 135 /* video functions */
 136 inline void video_clear(void);
 137 inline void video_draw_box(int style, int attr, char *title, int separate,
 138                            int x, int y, int w, int h);
 139 inline void video_draw_text(int x, int y, int attr, char *text, int field);
 140 inline void video_repeat_char(int x, int y, int repcnt, int repchar, int attr);
 141 inline unsigned short video_set_partial_scroll_limits(const short start,
 142                                                       const short end);
 143 inline void video_get_partial_scroll_limits(short *const start,
 144                                             short *const end);
 145 inline int video_get_key(void);
 146 inline int video_display_bitmap(unsigned long, int, int);
 147
 148 /* ext2fs functions */
 149 inline int ext2fs_set_blk_dev_full(block_dev_desc_t * const rbdd,
 150                                    disk_partition_t * const p);
 151 inline int ext2fs_open(char *filename);
 152 inline int ext2fs_read(char *buf, unsigned len);
 153 inline int ext2fs_mount(unsigned part_length);
 154 inline int ext2fs_close(void);
 155
 156 /* booting functions */
 157 inline int bootm(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
 158 inline void set_load_addr(void *const la);
 159 inline int bootu(char *device);
 160
 161 #endif /*CONTEXT_H_ */