diff options
Diffstat (limited to 'include/asm-arm/arch-rpc/uncompress.h')
-rw-r--r-- | include/asm-arm/arch-rpc/uncompress.h | 72 |
1 files changed, 57 insertions, 15 deletions
diff --git a/include/asm-arm/arch-rpc/uncompress.h b/include/asm-arm/arch-rpc/uncompress.h index 06231ede54e5..b8e29efd8c5b 100644 --- a/include/asm-arm/arch-rpc/uncompress.h +++ b/include/asm-arm/arch-rpc/uncompress.h @@ -11,9 +11,11 @@ #include <asm/hardware.h> #include <asm/io.h> +#include <asm/setup.h> +#include <asm/page.h> -int video_num_columns, video_num_lines, video_size_row; -int white, bytes_per_char_h; +int video_size_row; +unsigned char bytes_per_char_h; extern unsigned long con_charconvtable[256]; struct param_struct { @@ -64,6 +66,13 @@ extern __attribute__((pure)) struct param_struct *params(void); #define params (params()) #ifndef STANDALONE_DEBUG +static unsigned long video_num_cols; +static unsigned long video_num_rows; +static unsigned long video_x; +static unsigned long video_y; +static unsigned char bytes_per_char_v; +static int white; + /* * This does not append a newline */ @@ -73,27 +82,27 @@ static void putc(int c) int x,y; char *ptr; - x = params->video_x; - y = params->video_y; + x = video_x; + y = video_y; if (c == '\n') { - if (++y >= video_num_lines) + if (++y >= video_num_rows) y--; } else if (c == '\r') { x = 0; } else { - ptr = VIDMEM + ((y*video_num_columns*params->bytes_per_char_v+x)*bytes_per_char_h); + ptr = VIDMEM + ((y*video_num_cols*bytes_per_char_v+x)*bytes_per_char_h); ll_write_char(ptr, c, white); - if (++x >= video_num_columns) { + if (++x >= video_num_cols) { x = 0; - if ( ++y >= video_num_lines ) { + if ( ++y >= video_num_rows ) { y--; } } } - params->video_x = x; - params->video_y = y; + video_x = x; + video_y = y; } static inline void flush(void) @@ -108,11 +117,44 @@ static void error(char *x); static void arch_decomp_setup(void) { int i; + struct tag *t = (struct tag *)params; + unsigned int nr_pages = 0, page_size = PAGE_SIZE; + + if (t->hdr.tag == ATAG_CORE) + { + for (; t->hdr.size; t = tag_next(t)) + { + if (t->hdr.tag == ATAG_VIDEOTEXT) + { + video_num_rows = t->u.videotext.video_lines; + video_num_cols = t->u.videotext.video_cols; + bytes_per_char_h = t->u.videotext.video_points; + bytes_per_char_v = t->u.videotext.video_points; + video_x = t->u.videotext.x; + video_y = t->u.videotext.y; + } + + if (t->hdr.tag == ATAG_MEM) + { + page_size = PAGE_SIZE; + nr_pages += (t->u.mem.size / PAGE_SIZE); + } + } + } + else + { + nr_pages = params->nr_pages; + page_size = params->page_size; + video_num_rows = params->video_num_rows; + video_num_cols = params->video_num_cols; + video_x = params->video_x; + video_y = params->video_y; + bytes_per_char_h = params->bytes_per_char_h; + bytes_per_char_v = params->bytes_per_char_v; + } + + video_size_row = video_num_cols * bytes_per_char_h; - video_num_lines = params->video_num_rows; - video_num_columns = params->video_num_cols; - bytes_per_char_h = params->bytes_per_char_h; - video_size_row = video_num_columns * bytes_per_char_h; if (bytes_per_char_h == 4) for (i = 0; i < 256; i++) con_charconvtable[i] = @@ -146,7 +188,7 @@ static void arch_decomp_setup(void) white = 7; } - if (params->nr_pages * params->page_size < 4096*1024) error("<4M of mem\n"); + if (nr_pages * page_size < 4096*1024) error("<4M of mem\n"); } #endif |