m68k: Add more NeXT boot rom stuff
Those were found in the official headers in the NeXTstep ISO, how come I didn't even look there in the first place? We do get enough info to use the framebuffer, but sadly the SCSI IO seems invalid. Both the NetBSD and even NeXTstep bootblock have their own embedded drivers, maybe they didn't trust their own rom? Change-Id: I0a47c433da89b15091644cd5c69ffff24d0cdd1f Reviewed-on: https://review.haiku-os.org/c/haiku/+/3096 Reviewed-by: Alex von Gluck IV <[email protected]>
This commit is contained in:
François Revol
committed by
Alex von Gluck IV
Alex von Gluck IV
parent
5c9d51ef00
commit
ab17378328
@@ -27,6 +27,8 @@
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* parts from NeXT headers */
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#include <sys/types.h>
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#ifdef __cplusplus
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@@ -97,20 +99,60 @@ struct nvram_info {
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};
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struct mon_region {
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char data[(232-200)/N_SIMM];
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long first_phys_addr;
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long last_phys_addr;
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};
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enum SIO_ARGS {
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SIO_ARGS_max = 1
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};
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struct sio {
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enum SIO_ARGS si_args;
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unsigned int si_ctrl, si_unit, si_part;
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struct device *si_dev;
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unsigned int si_blklen;
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unsigned int si_lastlba;
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/*caddr_t*/void *si_sadmem;
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/*caddr_t*/void *si_protomem;
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/*caddr_t*/void *si_devmem;
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};
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struct km_mon {
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char data[370-324];
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};
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struct km_console_info
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{
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int pixels_per_word; /* Pixels per 32 bit word: 16, 4, 2, or 1 */
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int bytes_per_scanline;
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int dspy_w; /* Visible display width in pixels */
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int dspy_max_w; /* Display width in pixels */
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int dspy_h; /* Visible display height in pixels */
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#define KM_CON_ON_NEXTBUS 1 /* flag_bits: Console is NextBus device */
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int flag_bits; /* Vendor and NeXT flags */
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int color[4]; /* Bit pattern for white thru black */
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#define KM_HIGH_SLOT 6 /* highest possible console slot. */
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char slot_num; /* Slot of console device */
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char fb_num; /* Logical frame buffer in slot for console */
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char byte_lane_id; /* A value of 1, 4, or 8 */
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int start_access_pfunc; /* P-code run before each FB access */
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int end_access_pfunc; /* P-code run after each FB access */
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struct { /* Frame buffer related addresses to be mapped */
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int phys_addr;
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int virt_addr;
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int size;
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#define KM_CON_MAP_ENTRIES 6
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#define KM_CON_PCODE 0
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#define KM_CON_FRAMEBUFFER 1
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#define KM_CON_BACKINGSTORE 2
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} map_addr[KM_CON_MAP_ENTRIES];
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int access_stack;
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};
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/*
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struct km_console_info {
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char data[(936-4)-(788+16)];
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};
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};*/
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#pragma pack(push,2)
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@@ -184,6 +226,11 @@ struct mon_global {
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int (*mg_as_tune)();
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int mg_flags2;
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#define MGF2_PARITY 0x80000000
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volatile struct bmap *mg_bmap_chip;
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enum mg_pkg {PKG_CUBE, PKG_NS} mg_pkg;
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enum mg_memory_system {MEMSYS_8, MEMSYS_32} mg_memory_system;
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enum mg_video_system {VIDSYS_313, VIDSYS_W9C, VIDSYS_PC} mg_video_system;
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int mg_cpu_clk;
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};
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#pragma pack(pop)
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@@ -123,6 +123,7 @@ platform_exit(void)
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inline void dump_mg(struct mon_global *mg)
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{
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int i;
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dprintf("mg@ %p\n", (void*)mg);
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dprintf("mg_flags\t%x\n", (unsigned char)mg->mg_flags);
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@@ -132,8 +133,99 @@ inline void dump_mg(struct mon_global *mg)
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dprintf("mg_vbr\t%x\n", mg->mg_vbr);
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dprintf("mg_console_i\t%x\n", mg->mg_console_i);
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dprintf("mg_console_o\t%x\n", mg->mg_console_o);
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for (i = 0; i < N_SIMM; i++) {
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dprintf("mg_region[%d] = {%08lx, %08lx}\n", i,
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mg->mg_region[i].first_phys_addr,
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mg->mg_region[i].last_phys_addr);
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}
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dprintf("mg_boot_dev\t%s\n", mg->mg_boot_dev);
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dprintf("mg_boot_arg\t%s\n", mg->mg_boot_arg);
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dprintf("mg_boot_info\t%s\n", mg->mg_boot_info);
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dprintf("mg_boot_file\t%s\n", mg->mg_boot_file);
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dprintf("mg_boot_dev\t%s\n", mg->mg_boot_dev);
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dprintf("mg_boot_how\t%d\n", mg->mg_boot_how);
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dprintf("mg_sddp\t%p\n", mg->mg_sddp);
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dprintf("mg_dgp\t%p\n", mg->mg_dgp);
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// "dlV3" (disk label signature ?) SCSI boot gives "@dlV3"
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dprintf("mg_fdgp\t%p\n", mg->mg_fdgp); // "A" ?? SCSI: "to become ready"
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dprintf("mg_s5cp\t%p\n", mg->mg_s5cp);
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dprintf("mg_odc\t%p\n", mg->mg_odc);
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dprintf("mg_odd\t%p\n", mg->mg_odd);
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#if 0
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for (int i = 0; i < sizeof(struct mon_global); i++) {
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uint8 *p = ((uint8 *)mg)+i;
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if (i % 32 == 0)
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dprintf("%04x", i);
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if (i % 4 == 0)
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dprintf(" ");
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if (i % 8 == 0)
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dprintf(" ");
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dprintf("%02x", *p);
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if (i % 32 == 31 || i == sizeof(struct mon_global) - 1)
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dprintf("\n");
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}
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//while(true);
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#endif
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dprintf("mg_si\t%p\n", mg->mg_si);
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/* XXX:the pointer seems completely random, sadly.
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* Possibly the kernel is supposed to set it?
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*/
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#if 0
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for (int i = 0; i < sizeof(struct sio); i++) {
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uint8 *p = ((uint8 *)mg->mg_si)+i;
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if (i % 32 == 0)
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dprintf("%04x", i);
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if (i % 4 == 0)
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dprintf(" ");
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if (i % 8 == 0)
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dprintf(" ");
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dprintf("%02x", *p);
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if (i % 32 == 31 || i == sizeof(struct sio) - 1)
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dprintf("\n");
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}
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for (i = 0; i < 5; i++) {
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struct sio *s = &mg->mg_si[i];
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dprintf("sio[%d] = {%08x, %u, %u, %u, %p, %u, %u, %p, %p, %p}\n", i,
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s->si_args, s->si_ctrl, s->si_unit, s->si_part,
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s->si_dev, s->si_blklen, s->si_lastlba,
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s->si_sadmem, s->si_protomem, s->si_devmem);
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s++;
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}
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#endif
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//dprintf("test_msg\t%p\n", mg->test_msg);
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/* Framebuffer info */
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#if 1
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dprintf("km_coni = {%d, %d, %d, %d, %d, ... %d, %d, %d, ...%d}\n",
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mg->km_coni.pixels_per_word,
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mg->km_coni.bytes_per_scanline,
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mg->km_coni.dspy_w,
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mg->km_coni.dspy_max_w,
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mg->km_coni.dspy_h,
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//...
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mg->km_coni.slot_num,
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mg->km_coni.fb_num,
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mg->km_coni.byte_lane_id,
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mg->km_coni.access_stack);
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for (i = 0; i < KM_CON_MAP_ENTRIES; i++) {
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dprintf("km_coni.map_addr[%d] = {%08lx, %08lx, %08lx}\n", i,
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mg->km_coni.map_addr[i].phys_addr,
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mg->km_coni.map_addr[i].virt_addr,
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mg->km_coni.map_addr[i].size);
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}
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#endif
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//XXX: this one crashes on older ROMs
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//dprintf("mg_cpu_clk\t%d\n", mg->mg_cpu_clk);
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}
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extern "C" void *
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start_next(const char *boot_args, struct mon_global *monitor)
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{
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@@ -144,7 +236,7 @@ start_next(const char *boot_args, struct mon_global *monitor)
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//asm("cld"); // Ain't nothing but a GCC thang.
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//asm("fninit"); // initialize floating point unit
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clear_bss();
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//clear_bss();
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/* save monitor ROM entry */
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mg = monitor;
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// DEBUG
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@@ -166,9 +258,9 @@ start_next(const char *boot_args, struct mon_global *monitor)
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dump_mg(mg);
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//while(1);
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//return NULL;
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cpu_init();
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#if 0
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// TODO
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cpu_init();
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mmu_init();
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// wait a bit to give the user the opportunity to press a key
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