mirror of
https://github.com/ipxe/ipxe
synced 2026-04-04 03:00:20 +03:00
Merged mcb30-realmode-redesign back to HEAD
This commit is contained in:
Michael Brown
137
src/core/main.c
137
src/core/main.c
@@ -23,12 +23,10 @@ Literature dealing with the network protocols:
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#include "http.h"
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#include "timer.h"
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#include "cpu.h"
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#include "console.h"
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#include "init.h"
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#include <stdarg.h>
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#ifdef CONSOLE_BTEXT
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#include "btext.h"
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#endif
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#ifdef CONFIG_FILO
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#include <lib.h>
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#endif
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@@ -43,51 +41,6 @@ int freebsd_howto = 0;
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char freebsd_kernel_env[FREEBSD_KERNEL_ENV_SIZE];
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#endif
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/* in_call(): the entry point to Etherboot. Generally called from
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* arch_in_call(), which in turn will have been invoked from
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* platform-specific assembly code.
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*/
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int in_call ( in_call_data_t *data, uint32_t opcode, va_list params ) {
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int old_as_main_program = as_main_program;
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int ret = 0;
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/* Set flat to indicate that we are not running as the main
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* program (i.e. we are something like a PXE stack).
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*/
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as_main_program = 0;
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/* NOTE: params will cease to be valid if we relocate, since
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* it represents a virtual address
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*/
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switch ( EB_OPCODE(opcode) ) {
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case EB_OPCODE_CHECK:
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/* Installation check
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*/
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ret = EB_CHECK_RESULT;
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break;
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case EB_OPCODE_MAIN:
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/* Start up Etherboot as a standalone program. */
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as_main_program = 1;
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ret = main ( data, params );
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break;
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#ifdef PXE_EXPORT
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case EB_OPCODE_PXE:
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/* !PXE API call */
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ret = pxe_in_call ( data, params );
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break;
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#endif
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default:
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printf ( "Unsupported API \"%c%c\"\n",
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EB_OPCODE(opcode) >> 8, EB_OPCODE(opcode) & 0xff );
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ret = -1;
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break;
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}
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as_main_program = old_as_main_program;
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return ret;
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}
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static inline unsigned long ask_boot(unsigned *index)
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{
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unsigned long order = DEFAULT_BOOT_ORDER;
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@@ -166,26 +119,6 @@ static inline void try_floppy_first(void)
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#endif /* TRY_FLOPPY_FIRST */
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}
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void console_init(void)
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{
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#ifdef CONSOLE_SERIAL
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(void)serial_init();
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#endif
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#ifdef CONSOLE_DIRECT_VGA
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video_init();
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#endif
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#ifdef CONSOLE_BTEXT
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map_boot_text();
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#endif
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}
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static void console_fini(void)
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{
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#ifdef CONSOLE_SERIAL
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(void)serial_fini();
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#endif
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}
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static struct class_operations {
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struct dev *dev;
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int (*probe)(struct dev *dev);
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@@ -204,44 +137,16 @@ static int exit_ok;
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static int exit_status;
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static int initialized;
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/**************************************************************************
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MAIN - Kick off routine
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**************************************************************************/
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int main(in_call_data_t *data, va_list params)
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{
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char *p;
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int main ( void ) {
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int state;
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for (p = _bss; p < _ebss; p++)
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*p = 0; /* Zero BSS */
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console_init();
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arch_main(data,params);
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#if 0
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#ifdef CONSOLE_BTEXT
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btext_init();
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map_boot_text();
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btext_clearscreen();
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#endif
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#endif
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if ( rom.rom_segment ) {
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printf ( "ROM segment %#hx length %#hx reloc %#x\n",
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rom.rom_segment, rom.rom_length, _text );
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}
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cpu_setup();
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setup_timers();
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gateA20_set();
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print_config();
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get_memsizes();
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cleanup();
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#ifdef CONFIG_PCMCIA
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pcmcia_init_all();
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#endif
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/* -1: timeout or ESC
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-2: error return from loader
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-3: finish the current run.
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@@ -258,10 +163,7 @@ int main(in_call_data_t *data, va_list params)
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for(;state != 255;) {
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state = main_loop(state);
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}
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arch_on_exit(exit_status);
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#ifdef CONFIG_PCMCIA
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pcmcia_shutdown_all();
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#endif
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/* arch_on_exit(exit_status) */
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return exit_status;
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}
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@@ -283,13 +185,11 @@ static int main_loop(int state)
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static unsigned boot_index;
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static struct dev * dev = 0;
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static struct class_operations *ops;
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static void *heap_base;
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static int type;
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static int i;
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if (!initialized) {
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initialized = 1;
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console_init();
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if (dev && (state >= 1) && (state <= 2)) {
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dev->how_probe = PROBE_AWAKE;
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dev->how_probe = ops->probe(dev);
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@@ -304,21 +204,8 @@ static int main_loop(int state)
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static int firsttime = 1;
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/* First time through */
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if (firsttime) {
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relocate();
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/* relocate(); */
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cleanup();
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console_init();
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init_heap();
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#ifdef CONSOLE_BTEXT
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//I need to all allot
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btext_init();
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map_boot_text();
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btext_clearscreen();
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#else
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#ifdef CONFIG_FILO
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pci_init();
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#endif
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#endif
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firsttime = 0;
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}
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#ifdef EXIT_IF_NO_OFFER
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@@ -327,7 +214,6 @@ static int main_loop(int state)
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exit(0);
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}
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#endif
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heap_base = allot(0);
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i = -1;
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state = 4;
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dev = 0;
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@@ -339,8 +225,7 @@ static int main_loop(int state)
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}
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case 4:
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cleanup();
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console_init();
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forget(heap_base);
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call_reset_fns();
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/* Find a dev entry to probe with */
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if (!dev) {
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int boot;
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@@ -377,7 +262,12 @@ static int main_loop(int state)
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break;
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case 3:
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state = -1;
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heap_base = allot(0);
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/* Removed the following line because it was causing
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* heap.o to be dragged in unnecessarily. It's also
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* slightly puzzling: by resetting heap_base, doesn't
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* this mean that we permanently leak memory?
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*/
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/* heap_base = allot(0); */
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dev->how_probe = ops->probe(dev);
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if (dev->how_probe == PROBE_FAILED) {
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dev = 0;
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@@ -518,7 +408,6 @@ void cleanup(void)
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/* Stop receiving packets */
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eth_disable();
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disk_disable();
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console_fini();
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initialized = 0;
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}
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