qla_sup.c

来自「linux2.6.16版本」· C语言 代码 · 共 1,661 行 · 第 1/3 页

				    (fdata & 0xff00) |((fdata << 16) &
				    0xff0000) | ((fdata >> 16) & 0xff));
				if (ret != QLA_SUCCESS) {
					DEBUG9(printk("%s(%ld) Unable to flash "
					    "sector: address=%x.\n", __func__,
					    ha->host_no, faddr));
					break;
				}
			}
			ret = qla24xx_write_flash_dword(ha,
			    flash_data_to_access_addr(faddr),
			    cpu_to_le32(*dwptr));
			if (ret != QLA_SUCCESS) {
				DEBUG9(printk("%s(%ld) Unable to program flash "
				    "address=%x data=%x.\n", __func__,
				    ha->host_no, faddr, *dwptr));
				break;
			}
		}
	} while (0);

	/* Enable flash write-protection. */
	qla24xx_write_flash_dword(ha, flash_conf_to_access_addr(0x101), 0x9c);

	/* Disable flash write. */
	WRT_REG_DWORD(&reg->ctrl_status,
	    RD_REG_DWORD(&reg->ctrl_status) & ~CSRX_FLASH_ENABLE);
	RD_REG_DWORD(&reg->ctrl_status);	/* PCI Posting. */

	return ret;
}

uint8_t *
qla2x00_read_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
    uint32_t bytes)
{
	uint32_t i;
	uint16_t *wptr;

	/* Word reads to NVRAM via registers. */
	wptr = (uint16_t *)buf;
	qla2x00_lock_nvram_access(ha);
	for (i = 0; i < bytes >> 1; i++, naddr++)
		wptr[i] = cpu_to_le16(qla2x00_get_nvram_word(ha,
		    naddr));
	qla2x00_unlock_nvram_access(ha);

	return buf;
}

uint8_t *
qla24xx_read_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
    uint32_t bytes)
{
	uint32_t i;
	uint32_t *dwptr;

	/* Dword reads to flash. */
	dwptr = (uint32_t *)buf;
	for (i = 0; i < bytes >> 2; i++, naddr++)
		dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha,
		    nvram_data_to_access_addr(naddr)));

	return buf;
}

int
qla2x00_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
    uint32_t bytes)
{
	int ret, stat;
	uint32_t i;
	uint16_t *wptr;

	ret = QLA_SUCCESS;

	qla2x00_lock_nvram_access(ha);

	/* Disable NVRAM write-protection. */
	stat = qla2x00_clear_nvram_protection(ha);

	wptr = (uint16_t *)buf;
	for (i = 0; i < bytes >> 1; i++, naddr++) {
		qla2x00_write_nvram_word(ha, naddr,
		    cpu_to_le16(*wptr));
		wptr++;
	}

	/* Enable NVRAM write-protection. */
	qla2x00_set_nvram_protection(ha, stat);

	qla2x00_unlock_nvram_access(ha);

	return ret;
}

int
qla24xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
    uint32_t bytes)
{
	int ret;
	uint32_t i;
	uint32_t *dwptr;
	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;

	ret = QLA_SUCCESS;

	/* Enable flash write. */
	WRT_REG_DWORD(&reg->ctrl_status,
	    RD_REG_DWORD(&reg->ctrl_status) | CSRX_FLASH_ENABLE);
	RD_REG_DWORD(&reg->ctrl_status);	/* PCI Posting. */

	/* Disable NVRAM write-protection. */
	qla24xx_write_flash_dword(ha, nvram_conf_to_access_addr(0x101),
	    0);
	qla24xx_write_flash_dword(ha, nvram_conf_to_access_addr(0x101),
	    0);

	/* Dword writes to flash. */
	dwptr = (uint32_t *)buf;
	for (i = 0; i < bytes >> 2; i++, naddr++, dwptr++) {
		ret = qla24xx_write_flash_dword(ha,
		    nvram_data_to_access_addr(naddr),
		    cpu_to_le32(*dwptr));
		if (ret != QLA_SUCCESS) {
			DEBUG9(printk("%s(%ld) Unable to program "
			    "nvram address=%x data=%x.\n", __func__,
			    ha->host_no, naddr, *dwptr));
			break;
		}
	}

	/* Enable NVRAM write-protection. */
	qla24xx_write_flash_dword(ha, nvram_conf_to_access_addr(0x101),
	    0x8c);

	/* Disable flash write. */
	WRT_REG_DWORD(&reg->ctrl_status,
	    RD_REG_DWORD(&reg->ctrl_status) & ~CSRX_FLASH_ENABLE);
	RD_REG_DWORD(&reg->ctrl_status);	/* PCI Posting. */

	return ret;
}


static inline void
qla2x00_flip_colors(scsi_qla_host_t *ha, uint16_t *pflags)
{
	if (IS_QLA2322(ha)) {
		/* Flip all colors. */
		if (ha->beacon_color_state == QLA_LED_ALL_ON) {
			/* Turn off. */
			ha->beacon_color_state = 0;
			*pflags = GPIO_LED_ALL_OFF;
		} else {
			/* Turn on. */
			ha->beacon_color_state = QLA_LED_ALL_ON;
			*pflags = GPIO_LED_RGA_ON;
		}
	} else {
		/* Flip green led only. */
		if (ha->beacon_color_state == QLA_LED_GRN_ON) {
			/* Turn off. */
			ha->beacon_color_state = 0;
			*pflags = GPIO_LED_GREEN_OFF_AMBER_OFF;
		} else {
			/* Turn on. */
			ha->beacon_color_state = QLA_LED_GRN_ON;
			*pflags = GPIO_LED_GREEN_ON_AMBER_OFF;
		}
	}
}

void
qla2x00_beacon_blink(struct scsi_qla_host *ha)
{
	uint16_t gpio_enable;
	uint16_t gpio_data;
	uint16_t led_color = 0;
	unsigned long flags;
	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;

	if (ha->pio_address)
		reg = (struct device_reg_2xxx __iomem *)ha->pio_address;

	spin_lock_irqsave(&ha->hardware_lock, flags);

	/* Save the Original GPIOE. */
	if (ha->pio_address) {
		gpio_enable = RD_REG_WORD_PIO(&reg->gpioe);
		gpio_data = RD_REG_WORD_PIO(&reg->gpiod);
	} else {
		gpio_enable = RD_REG_WORD(&reg->gpioe);
		gpio_data = RD_REG_WORD(&reg->gpiod);
	}

	/* Set the modified gpio_enable values */
	gpio_enable |= GPIO_LED_MASK;

	if (ha->pio_address) {
		WRT_REG_WORD_PIO(&reg->gpioe, gpio_enable);
	} else {
		WRT_REG_WORD(&reg->gpioe, gpio_enable);
		RD_REG_WORD(&reg->gpioe);
	}

	qla2x00_flip_colors(ha, &led_color);

	/* Clear out any previously set LED color. */
	gpio_data &= ~GPIO_LED_MASK;

	/* Set the new input LED color to GPIOD. */
	gpio_data |= led_color;

	/* Set the modified gpio_data values */
	if (ha->pio_address) {
		WRT_REG_WORD_PIO(&reg->gpiod, gpio_data);
	} else {
		WRT_REG_WORD(&reg->gpiod, gpio_data);
		RD_REG_WORD(&reg->gpiod);
	}

	spin_unlock_irqrestore(&ha->hardware_lock, flags);
}

int
qla2x00_beacon_on(struct scsi_qla_host *ha)
{
	uint16_t gpio_enable;
	uint16_t gpio_data;
	unsigned long flags;
	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;

	ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
	ha->fw_options[1] |= FO1_DISABLE_GPIO6_7;

	if (qla2x00_set_fw_options(ha, ha->fw_options) != QLA_SUCCESS) {
		qla_printk(KERN_WARNING, ha,
		    "Unable to update fw options (beacon on).\n");
		return QLA_FUNCTION_FAILED;
	}

	if (ha->pio_address)
		reg = (struct device_reg_2xxx __iomem *)ha->pio_address;

	/* Turn off LEDs. */
	spin_lock_irqsave(&ha->hardware_lock, flags);
	if (ha->pio_address) {
		gpio_enable = RD_REG_WORD_PIO(&reg->gpioe);
		gpio_data = RD_REG_WORD_PIO(&reg->gpiod);
	} else {
		gpio_enable = RD_REG_WORD(&reg->gpioe);
		gpio_data = RD_REG_WORD(&reg->gpiod);
	}
	gpio_enable |= GPIO_LED_MASK;

	/* Set the modified gpio_enable values. */
	if (ha->pio_address) {
		WRT_REG_WORD_PIO(&reg->gpioe, gpio_enable);
	} else {
		WRT_REG_WORD(&reg->gpioe, gpio_enable);
		RD_REG_WORD(&reg->gpioe);
	}

	/* Clear out previously set LED colour. */
	gpio_data &= ~GPIO_LED_MASK;
	if (ha->pio_address) {
		WRT_REG_WORD_PIO(&reg->gpiod, gpio_data);
	} else {
		WRT_REG_WORD(&reg->gpiod, gpio_data);
		RD_REG_WORD(&reg->gpiod);
	}
	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	/*
	 * Let the per HBA timer kick off the blinking process based on
	 * the following flags. No need to do anything else now.
	 */
	ha->beacon_blink_led = 1;
	ha->beacon_color_state = 0;

	return QLA_SUCCESS;
}

int
qla2x00_beacon_off(struct scsi_qla_host *ha)
{
	int rval = QLA_SUCCESS;

	ha->beacon_blink_led = 0;

	/* Set the on flag so when it gets flipped it will be off. */
	if (IS_QLA2322(ha))
		ha->beacon_color_state = QLA_LED_ALL_ON;
	else
		ha->beacon_color_state = QLA_LED_GRN_ON;

	ha->isp_ops.beacon_blink(ha);	/* This turns green LED off */

	ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
	ha->fw_options[1] &= ~FO1_DISABLE_GPIO6_7;

	rval = qla2x00_set_fw_options(ha, ha->fw_options);
	if (rval != QLA_SUCCESS)
		qla_printk(KERN_WARNING, ha,
		    "Unable to update fw options (beacon off).\n");
	return rval;
}


static inline void
qla24xx_flip_colors(scsi_qla_host_t *ha, uint16_t *pflags)
{
	/* Flip all colors. */
	if (ha->beacon_color_state == QLA_LED_ALL_ON) {
		/* Turn off. */
		ha->beacon_color_state = 0;
		*pflags = 0;
	} else {
		/* Turn on. */
		ha->beacon_color_state = QLA_LED_ALL_ON;
		*pflags = GPDX_LED_YELLOW_ON | GPDX_LED_AMBER_ON;
	}
}

void
qla24xx_beacon_blink(struct scsi_qla_host *ha)
{
	uint16_t led_color = 0;
	uint32_t gpio_data;
	unsigned long flags;
	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;

	/* Save the Original GPIOD. */
	spin_lock_irqsave(&ha->hardware_lock, flags);
	gpio_data = RD_REG_DWORD(&reg->gpiod);

	/* Enable the gpio_data reg for update. */
	gpio_data |= GPDX_LED_UPDATE_MASK;

	WRT_REG_DWORD(&reg->gpiod, gpio_data);
	gpio_data = RD_REG_DWORD(&reg->gpiod);

	/* Set the color bits. */
	qla24xx_flip_colors(ha, &led_color);

	/* Clear out any previously set LED color. */
	gpio_data &= ~GPDX_LED_COLOR_MASK;

	/* Set the new input LED color to GPIOD. */
	gpio_data |= led_color;

	/* Set the modified gpio_data values. */
	WRT_REG_DWORD(&reg->gpiod, gpio_data);
	gpio_data = RD_REG_DWORD(&reg->gpiod);
	spin_unlock_irqrestore(&ha->hardware_lock, flags);
}

int
qla24xx_beacon_on(struct scsi_qla_host *ha)
{
	uint32_t gpio_data;
	unsigned long flags;
	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;

	if (ha->beacon_blink_led == 0) {
		/* Enable firmware for update */
		ha->fw_options[1] |= ADD_FO1_DISABLE_GPIO_LED_CTRL;

		if (qla2x00_set_fw_options(ha, ha->fw_options) != QLA_SUCCESS)
			return QLA_FUNCTION_FAILED;

		if (qla2x00_get_fw_options(ha, ha->fw_options) !=
		    QLA_SUCCESS) {
			qla_printk(KERN_WARNING, ha,
			    "Unable to update fw options (beacon on).\n");
			return QLA_FUNCTION_FAILED;
		}

		spin_lock_irqsave(&ha->hardware_lock, flags);
		gpio_data = RD_REG_DWORD(&reg->gpiod);

		/* Enable the gpio_data reg for update. */
		gpio_data |= GPDX_LED_UPDATE_MASK;
		WRT_REG_DWORD(&reg->gpiod, gpio_data);
		RD_REG_DWORD(&reg->gpiod);

		spin_unlock_irqrestore(&ha->hardware_lock, flags);
	}

	/* So all colors blink together. */
	ha->beacon_color_state = 0;

	/* Let the per HBA timer kick off the blinking process. */
	ha->beacon_blink_led = 1;

	return QLA_SUCCESS;
}

int
qla24xx_beacon_off(struct scsi_qla_host *ha)
{
	uint32_t gpio_data;
	unsigned long flags;
	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;

	ha->beacon_blink_led = 0;
	ha->beacon_color_state = QLA_LED_ALL_ON;

	ha->isp_ops.beacon_blink(ha);	/* Will flip to all off. */

	/* Give control back to firmware. */
	spin_lock_irqsave(&ha->hardware_lock, flags);
	gpio_data = RD_REG_DWORD(&reg->gpiod);

	/* Disable the gpio_data reg for update. */
	gpio_data &= ~GPDX_LED_UPDATE_MASK;
	WRT_REG_DWORD(&reg->gpiod, gpio_data);
	RD_REG_DWORD(&reg->gpiod);
	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	ha->fw_options[1] &= ~ADD_FO1_DISABLE_GPIO_LED_CTRL;

	if (qla2x00_set_fw_options(ha, ha->fw_options) != QLA_SUCCESS) {
		qla_printk(KERN_WARNING, ha,
		    "Unable to update fw options (beacon off).\n");
		return QLA_FUNCTION_FAILED;
	}

	if (qla2x00_get_fw_options(ha, ha->fw_options) != QLA_SUCCESS) {
		qla_printk(KERN_WARNING, ha,
		    "Unable to get fw options (beacon off).\n");
		return QLA_FUNCTION_FAILED;
	}

	return QLA_SUCCESS;
}


/*
 * Flash support routines
 */

/**
 * qla2x00_flash_enable() - Setup flash for reading and writing.
 * @ha: HA context
 */
static void
qla2x00_flash_enable(scsi_qla_host_t *ha)
{
	uint16_t data;
	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;

	data = RD_REG_WORD(&reg->ctrl_status);
	data |= CSR_FLASH_ENABLE;
	WRT_REG_WORD(&reg->ctrl_status, data);
	RD_REG_WORD(&reg->ctrl_status);		/* PCI Posting. */
}

/**
 * qla2x00_flash_disable() - Disable flash and allow RISC to run.
 * @ha: HA context
 */
static void
qla2x00_flash_disable(scsi_qla_host_t *ha)
{
	uint16_t data;
	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;

	data = RD_REG_WORD(&reg->ctrl_status);
	data &= ~(CSR_FLASH_ENABLE);
	WRT_REG_WORD(&reg->ctrl_status, data);
	RD_REG_WORD(&reg->ctrl_status);		/* PCI Posting. */
}

/**
 * qla2x00_read_flash_byte() - Reads a byte from flash
 * @ha: HA context
 * @addr: Address in flash to read
 *
 * A word is read from the chip, but, only the lower byte is valid.
 *
 * Returns the byte read from flash @addr.
 */
static uint8_t
qla2x00_read_flash_byte(scsi_qla_host_t *ha, uint32_t addr)
{
	uint16_t data;
	uint16_t bank_select;
	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;

	bank_select = RD_REG_WORD(&reg->ctrl_status);

	if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
		/* Specify 64K address range: */
		/*  clear out Module Select and Flash Address bits [19:16]. */
		bank_select &= ~0xf8;
		bank_select |= addr >> 12 & 0xf0;
		bank_select |= CSR_FLASH_64K_BANK;
		WRT_REG_WORD(&reg->ctrl_status, bank_select);
		RD_REG_WORD(&reg->ctrl_status);	/* PCI Posting. */

		WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
		data = RD_REG_WORD(&reg->flash_data);

		return (uint8_t)data;
	}

	/* Setup bit 16 of flash address. */
	if ((addr & BIT_16) && ((bank_select & CSR_FLASH_64K_BANK) == 0)) {
		bank_select |= CSR_FLASH_64K_BANK;
		WRT_REG_WORD(&reg->ctrl_status, bank_select);
		RD_REG_WORD(&reg->ctrl_status);	/* PCI Posting. */
	} else if (((addr & BIT_16) == 0) &&
	    (bank_select & CSR_FLASH_64K_BANK)) {
		bank_select &= ~(CSR_FLASH_64K_BANK);
		WRT_REG_WORD(&reg->ctrl_status, bank_select);
		RD_REG_WORD(&reg->ctrl_status);	/* PCI Posting. */
	}

	/* Always perform IO mapped accesses to the FLASH registers. */
	if (ha->pio_address) {
		uint16_t data2;

		reg = (struct device_reg_2xxx __iomem *)ha->pio_address;
		WRT_REG_WORD_PIO(&reg->flash_address, (uint16_t)addr);
		do {
			data = RD_REG_WORD_PIO(&reg->flash_data);
			barrier();
			cpu_relax();
			data2 = RD_REG_WORD_PIO(&reg->flash_data);
		} while (data != data2);
	} else {
		WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
		data = qla2x00_debounce_register(&reg->flash_data);
	}

	return (uint8_t)data;
}

/**
 * qla2x00_write_flash_byte() - Write a byte to flash
 * @ha: HA context
 * @addr: Address in flash to write
 * @data: Data to write
 */
static void
qla2x00_write_flash_byte(scsi_qla_host_t *ha, uint32_t addr, uint8_t data)
{
	uint16_t bank_select;
	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;

	bank_select = RD_REG_WORD(&reg->ctrl_status);
	if (IS_QLA2322(ha) || IS_QLA6322(ha)) {