50 int disk_int13_retry(const com32sys_t * inreg, com32sys_t * outreg)  in disk_int13_retry()  argument
59 	__intcall(0x13, inreg, outreg);  in disk_int13_retry()
76     static com32sys_t inreg, outreg;  in disk_get_params()  local
85     memset(&inreg, 0, sizeof inreg);  in disk_get_params()
86     inreg.eax.b[1] = 0x41;  in disk_get_params()
87     inreg.ebx.w[0] = 0x55aa;  in disk_get_params()
88     inreg.edx.b[0] = disk;  in disk_get_params()
89     inreg.eflags.b[0] = 0x3;	/* CF set */  in disk_get_params()
91     __intcall(0x13, &inreg, &outreg);  in disk_get_params()
104 	memset(&inreg, 0, sizeof inreg);  in disk_get_params()
105 	inreg.eax.b[1] = 0x48;  in disk_get_params()
106 	inreg.edx.b[0] = disk;  in disk_get_params()
107 	inreg.esi.w[0] = OFFS(eparam);  in disk_get_params()
108 	inreg.ds = SEG(eparam);  in disk_get_params()
113 	__intcall(0x13, &inreg, &outreg);  in disk_get_params()
130     memset(&inreg, 0, sizeof inreg);  in disk_get_params()
131     inreg.eax.b[1] = 0x08;  in disk_get_params()
132     inreg.edx.b[0] = disk;  in disk_get_params()
134     __intcall(0x13, &inreg, &outreg);  in disk_get_params()
171 static void *ebios_setup(const struct disk_info *const diskinfo, com32sys_t *inreg,  in ebios_setup()  argument
193     inreg->eax.b[1] = op_code;  in ebios_setup()
194     inreg->esi.w[0] = OFFS(dapa);  in ebios_setup()
195     inreg->ds = SEG(dapa);  in ebios_setup()
196     inreg->edx.b[0] = diskinfo->disk;  in ebios_setup()
211 static void *chs_setup(const struct disk_info *const diskinfo, com32sys_t *inreg,  in chs_setup()  argument
232     memset(inreg, 0, sizeof *inreg);  in chs_setup()
233     inreg->eax.b[0] = count;  in chs_setup()
234     inreg->eax.b[1] = op_code;  in chs_setup()
235     inreg->ecx.b[1] = c;  in chs_setup()
236     inreg->ecx.b[0] = ((c & 0x300) >> 2) | (s+1);  in chs_setup()
237     inreg->edx.b[1] = h;  in chs_setup()
238     inreg->edx.b[0] = diskinfo->disk;  in chs_setup()
239     inreg->ebx.w[0] = OFFS(buf);  in chs_setup()
240     inreg->es = SEG(buf);  in chs_setup()
259     com32sys_t inreg;  in disk_read_sectors()  local
269     memset(&inreg, 0, sizeof inreg);  in disk_read_sectors()
272 	buf = ebios_setup(diskinfo, &inreg, lba, count, EBIOS_READ_CODE);  in disk_read_sectors()
274 	buf = chs_setup(diskinfo, &inreg, lba, count, CHS_READ_CODE);  in disk_read_sectors()
279     if (disk_int13_retry(&inreg, NULL))  in disk_read_sectors()
305     com32sys_t inreg;  in disk_write_sectors()  local
315     memset(&inreg, 0, sizeof inreg);  in disk_write_sectors()
318 	buf = ebios_setup(diskinfo, &inreg, lba, count, EBIOS_WRITE_CODE);  in disk_write_sectors()
320 	buf = chs_setup(diskinfo, &inreg, lba, count, CHS_WRITE_CODE);  in disk_write_sectors()
327     if (disk_int13_retry(&inreg, NULL))  in disk_write_sectors()