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)) {
<<<<<<< HEAD
		printk("ahd_proc_write_seeprom: incorrect buffer size\n");
=======
Exemple #2
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);
}
Exemple #3
0
/*
 * Perform some simple tests that should catch situations where
 * our registers are invalidly mapped.
 */
int
ahd_pci_test_register_access(struct ahd_softc *ahd)
{
	uint32_t cmd;
	u_int	 targpcistat;
	u_int	 pci_status1;
	int	 error;
	uint8_t	 hcntrl;

	error = EIO;

	/*
	 * Enable PCI error interrupt status, but suppress NMIs
	 * generated by SERR raised due to target aborts.
	 */
	cmd = ahd_pci_read_config(ahd->dev_softc, PCIR_COMMAND, /*bytes*/2);
	ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND,
			     cmd & ~PCIM_CMD_SERRESPEN, /*bytes*/2);

	/*
	 * First a simple test to see if any
	 * registers can be read.  Reading
	 * HCNTRL has no side effects and has
	 * at least one bit that is guaranteed to
	 * be zero so it is a good register to
	 * use for this test.
	 */
	hcntrl = ahd_inb(ahd, HCNTRL);
	if (hcntrl == 0xFF)
		goto fail;

	/*
	 * Next create a situation where write combining
	 * or read prefetching could be initiated by the
	 * CPU or host bridge.  Our device does not support
	 * either, so look for data corruption and/or flaged
	 * PCI errors.  First pause without causing another
	 * chip reset.
	 */
	hcntrl &= ~CHIPRST;
	ahd_outb(ahd, HCNTRL, hcntrl|PAUSE);
	while (ahd_is_paused(ahd) == 0)
		;

	/* Clear any PCI errors that occurred before our driver attached. */
	ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
	targpcistat = ahd_inb(ahd, TARGPCISTAT);
	ahd_outb(ahd, TARGPCISTAT, targpcistat);
	pci_status1 = ahd_pci_read_config(ahd->dev_softc,
					  PCIR_STATUS + 1, /*bytes*/1);
	ahd_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
			     pci_status1, /*bytes*/1);
	ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
	ahd_outb(ahd, CLRINT, CLRPCIINT);

	ahd_outb(ahd, SEQCTL0, PERRORDIS);
	ahd_outl(ahd, SRAM_BASE, 0x5aa555aa);
	if (ahd_inl(ahd, SRAM_BASE) != 0x5aa555aa)
		goto fail;

	if ((ahd_inb(ahd, INTSTAT) & PCIINT) != 0) {
		u_int targpcistat;

		ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
		targpcistat = ahd_inb(ahd, TARGPCISTAT);
		if ((targpcistat & STA) != 0)
			goto fail;
	}

	error = 0;

fail:
	if ((ahd_inb(ahd, INTSTAT) & PCIINT) != 0) {

		ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
		targpcistat = ahd_inb(ahd, TARGPCISTAT);

		/* Silently clear any latched errors. */
		ahd_outb(ahd, TARGPCISTAT, targpcistat);
		pci_status1 = ahd_pci_read_config(ahd->dev_softc,
						  PCIR_STATUS + 1, /*bytes*/1);
		ahd_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
				     pci_status1, /*bytes*/1);
		ahd_outb(ahd, CLRINT, CLRPCIINT);
	}
	ahd_outb(ahd, SEQCTL0, PERRORDIS|FAILDIS);
	ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND, cmd, /*bytes*/2);
	return (error);
}
Exemple #4
0
int
ahd_pci_test_register_access(struct ahd_softc *ahd)
{
	uint32_t cmd;
	u_int	 targpcistat;
	u_int	 pci_status1;
	int	 error;
	uint8_t	 hcntrl;

	error = EIO;

	
	cmd = ahd_pci_read_config(ahd->dev_softc, PCIR_COMMAND, 2);
	ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND,
			     cmd & ~PCIM_CMD_SERRESPEN, 2);

	
	hcntrl = ahd_inb(ahd, HCNTRL);
	if (hcntrl == 0xFF)
		goto fail;

	
	hcntrl &= ~CHIPRST;
	ahd_outb(ahd, HCNTRL, hcntrl|PAUSE);
	while (ahd_is_paused(ahd) == 0)
		;

	
	ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
	targpcistat = ahd_inb(ahd, TARGPCISTAT);
	ahd_outb(ahd, TARGPCISTAT, targpcistat);
	pci_status1 = ahd_pci_read_config(ahd->dev_softc,
					  PCIR_STATUS + 1, 1);
	ahd_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
			     pci_status1, 1);
	ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
	ahd_outb(ahd, CLRINT, CLRPCIINT);

	ahd_outb(ahd, SEQCTL0, PERRORDIS);
	ahd_outl(ahd, SRAM_BASE, 0x5aa555aa);
	if (ahd_inl(ahd, SRAM_BASE) != 0x5aa555aa)
		goto fail;

	if ((ahd_inb(ahd, INTSTAT) & PCIINT) != 0) {
		ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
		targpcistat = ahd_inb(ahd, TARGPCISTAT);
		if ((targpcistat & STA) != 0)
			goto fail;
	}

	error = 0;

fail:
	if ((ahd_inb(ahd, INTSTAT) & PCIINT) != 0) {

		ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
		targpcistat = ahd_inb(ahd, TARGPCISTAT);

		
		ahd_outb(ahd, TARGPCISTAT, targpcistat);
		pci_status1 = ahd_pci_read_config(ahd->dev_softc,
						  PCIR_STATUS + 1, 1);
		ahd_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
				     pci_status1, 1);
		ahd_outb(ahd, CLRINT, CLRPCIINT);
	}
	ahd_outb(ahd, SEQCTL0, PERRORDIS|FAILDIS);
	ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND, cmd, 2);
	return (error);
}