/* * Check the external port logic for a serial eeprom * and termination/cable detection contrls. */ static int ahd_check_extport(struct ahd_softc *ahd) { struct vpd_config vpd; struct seeprom_config *sc; u_int adapter_control; int have_seeprom; int error; sc = ahd->seep_config; have_seeprom = ahd_acquire_seeprom(ahd); if (have_seeprom) { u_int start_addr; /* * Fetch VPD for this function and parse it. */ if (bootverbose) printf("%s: Reading VPD from SEEPROM...", ahd_name(ahd)); /* Address is always in units of 16bit words */ start_addr = ((2 * sizeof(*sc)) + (sizeof(vpd) * (ahd->channel - 'A'))) / 2; error = ahd_read_seeprom(ahd, (uint16_t *)&vpd, start_addr, sizeof(vpd)/2, /*bytestream*/TRUE); if (error == 0) error = ahd_parse_vpddata(ahd, &vpd); if (bootverbose) printf("%s: VPD parsing %s\n", ahd_name(ahd), error == 0 ? "successful" : "failed"); if (bootverbose) printf("%s: Reading SEEPROM...", ahd_name(ahd)); /* Address is always in units of 16bit words */ start_addr = (sizeof(*sc) / 2) * (ahd->channel - 'A'); error = ahd_read_seeprom(ahd, (uint16_t *)sc, start_addr, sizeof(*sc)/2, /*bytestream*/FALSE); if (error != 0) { printf("Unable to read SEEPROM\n"); have_seeprom = 0; } else { have_seeprom = ahd_verify_cksum(sc); if (bootverbose) { if (have_seeprom == 0) printf ("checksum error\n"); else printf ("done.\n"); } } ahd_release_seeprom(ahd); } if (!have_seeprom) { u_int nvram_scb; /* * Pull scratch ram settings and treat them as * if they are the contents of an seeprom if * the 'ADPT', 'BIOS', or 'ASPI' signature is found * in SCB 0xFF. We manually compose the data as 16bit * values to avoid endian issues. */ ahd_set_scbptr(ahd, 0xFF); nvram_scb = ahd_inb_scbram(ahd, SCB_BASE + NVRAM_SCB_OFFSET); if (nvram_scb != 0xFF && ((ahd_inb_scbram(ahd, SCB_BASE + 0) == 'A' && ahd_inb_scbram(ahd, SCB_BASE + 1) == 'D' && ahd_inb_scbram(ahd, SCB_BASE + 2) == 'P' && ahd_inb_scbram(ahd, SCB_BASE + 3) == 'T') || (ahd_inb_scbram(ahd, SCB_BASE + 0) == 'B' && ahd_inb_scbram(ahd, SCB_BASE + 1) == 'I' && ahd_inb_scbram(ahd, SCB_BASE + 2) == 'O' && ahd_inb_scbram(ahd, SCB_BASE + 3) == 'S') || (ahd_inb_scbram(ahd, SCB_BASE + 0) == 'A' && ahd_inb_scbram(ahd, SCB_BASE + 1) == 'S' && ahd_inb_scbram(ahd, SCB_BASE + 2) == 'P' && ahd_inb_scbram(ahd, SCB_BASE + 3) == 'I'))) { uint16_t *sc_data; int i; ahd_set_scbptr(ahd, nvram_scb); sc_data = (uint16_t *)sc; for (i = 0; i < 64; i += 2) *sc_data++ = ahd_inw_scbram(ahd, SCB_BASE+i); have_seeprom = ahd_verify_cksum(sc); if (have_seeprom) ahd->flags |= AHD_SCB_CONFIG_USED; } } #ifdef AHD_DEBUG if (have_seeprom != 0 && (ahd_debug & AHD_DUMP_SEEPROM) != 0) { uint16_t *sc_data; int i; printf("%s: Seeprom Contents:", ahd_name(ahd)); sc_data = (uint16_t *)sc; for (i = 0; i < (sizeof(*sc)); i += 2) printf("\n\t0x%.4x", sc_data[i]); printf("\n"); } #endif if (!have_seeprom) { if (bootverbose) printf("%s: No SEEPROM available.\n", ahd_name(ahd)); ahd->flags |= AHD_USEDEFAULTS; error = ahd_default_config(ahd); adapter_control = CFAUTOTERM|CFSEAUTOTERM; free(ahd->seep_config, M_DEVBUF); ahd->seep_config = NULL; } else { error = ahd_parse_cfgdata(ahd, sc); adapter_control = sc->adapter_control; } if (error != 0) return (error); ahd_configure_termination(ahd, adapter_control); return (0); }
static int ahd_proc_write_seeprom(struct ahd_softc *ahd, char *buffer, int length) { ahd_mode_state saved_modes; int have_seeprom; u_long s; int paused; int written; /* Default to failure. */ written = -EINVAL; ahd_lock(ahd, &s); paused = ahd_is_paused(ahd); if (!paused) ahd_pause(ahd); saved_modes = ahd_save_modes(ahd); ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); if (length != sizeof(struct seeprom_config)) { printf("ahd_proc_write_seeprom: incorrect buffer size\n"); goto done; } have_seeprom = ahd_verify_cksum((struct seeprom_config*)buffer); if (have_seeprom == 0) { printf("ahd_proc_write_seeprom: cksum verification failed\n"); goto done; } have_seeprom = ahd_acquire_seeprom(ahd); if (!have_seeprom) { printf("ahd_proc_write_seeprom: No Serial EEPROM\n"); goto done; } else { u_int start_addr; if (ahd->seep_config == NULL) { ahd->seep_config = malloc(sizeof(*ahd->seep_config), M_DEVBUF, M_NOWAIT); if (ahd->seep_config == NULL) { printf("aic79xx: Unable to allocate serial " "eeprom buffer. Write failing\n"); goto done; } } printf("aic79xx: Writing Serial EEPROM\n"); start_addr = 32 * (ahd->channel - 'A'); ahd_write_seeprom(ahd, (u_int16_t *)buffer, start_addr, sizeof(struct seeprom_config)/2); ahd_read_seeprom(ahd, (uint16_t *)ahd->seep_config, start_addr, sizeof(struct seeprom_config)/2, /*ByteStream*/FALSE); ahd_release_seeprom(ahd); written = length; } done: ahd_restore_modes(ahd, saved_modes); if (!paused) ahd_unpause(ahd); ahd_unlock(ahd, &s); return (written); }
static int ahd_check_extport(struct ahd_softc *ahd) { struct vpd_config vpd; struct seeprom_config *sc; u_int adapter_control; int have_seeprom; int error; sc = ahd->seep_config; have_seeprom = ahd_acquire_seeprom(ahd); if (have_seeprom) { u_int start_addr; if (bootverbose) printf("%s: Reading VPD from SEEPROM...", ahd_name(ahd)); start_addr = ((2 * sizeof(*sc)) + (sizeof(vpd) * (ahd->channel - 'A'))) / 2; error = ahd_read_seeprom(ahd, (uint16_t *)&vpd, start_addr, sizeof(vpd)/2, TRUE); if (error == 0) error = ahd_parse_vpddata(ahd, &vpd); if (bootverbose) printf("%s: VPD parsing %s\n", ahd_name(ahd), error == 0 ? "successful" : "failed"); if (bootverbose) printf("%s: Reading SEEPROM...", ahd_name(ahd)); start_addr = (sizeof(*sc) / 2) * (ahd->channel - 'A'); error = ahd_read_seeprom(ahd, (uint16_t *)sc, start_addr, sizeof(*sc)/2, FALSE); if (error != 0) { printf("Unable to read SEEPROM\n"); have_seeprom = 0; } else { have_seeprom = ahd_verify_cksum(sc); if (bootverbose) { if (have_seeprom == 0) printf ("checksum error\n"); else printf ("done.\n"); } } ahd_release_seeprom(ahd); } if (!have_seeprom) { u_int nvram_scb; ahd_set_scbptr(ahd, 0xFF); nvram_scb = ahd_inb_scbram(ahd, SCB_BASE + NVRAM_SCB_OFFSET); if (nvram_scb != 0xFF && ((ahd_inb_scbram(ahd, SCB_BASE + 0) == 'A' && ahd_inb_scbram(ahd, SCB_BASE + 1) == 'D' && ahd_inb_scbram(ahd, SCB_BASE + 2) == 'P' && ahd_inb_scbram(ahd, SCB_BASE + 3) == 'T') || (ahd_inb_scbram(ahd, SCB_BASE + 0) == 'B' && ahd_inb_scbram(ahd, SCB_BASE + 1) == 'I' && ahd_inb_scbram(ahd, SCB_BASE + 2) == 'O' && ahd_inb_scbram(ahd, SCB_BASE + 3) == 'S') || (ahd_inb_scbram(ahd, SCB_BASE + 0) == 'A' && ahd_inb_scbram(ahd, SCB_BASE + 1) == 'S' && ahd_inb_scbram(ahd, SCB_BASE + 2) == 'P' && ahd_inb_scbram(ahd, SCB_BASE + 3) == 'I'))) { uint16_t *sc_data; int i; ahd_set_scbptr(ahd, nvram_scb); sc_data = (uint16_t *)sc; for (i = 0; i < 64; i += 2) *sc_data++ = ahd_inw_scbram(ahd, SCB_BASE+i); have_seeprom = ahd_verify_cksum(sc); if (have_seeprom) ahd->flags |= AHD_SCB_CONFIG_USED; } } #ifdef AHD_DEBUG if (have_seeprom != 0 && (ahd_debug & AHD_DUMP_SEEPROM) != 0) { uint16_t *sc_data; int i; printf("%s: Seeprom Contents:", ahd_name(ahd)); sc_data = (uint16_t *)sc; for (i = 0; i < (sizeof(*sc)); i += 2) printf("\n\t0x%.4x", sc_data[i]); printf("\n"); } #endif if (!have_seeprom) { if (bootverbose) printf("%s: No SEEPROM available.\n", ahd_name(ahd)); ahd->flags |= AHD_USEDEFAULTS; error = ahd_default_config(ahd); adapter_control = CFAUTOTERM|CFSEAUTOTERM; free(ahd->seep_config, M_DEVBUF); ahd->seep_config = NULL; } else { error = ahd_parse_cfgdata(ahd, sc); adapter_control = sc->adapter_control; } if (error != 0) return (error); ahd_configure_termination(ahd, adapter_control); return (0); }