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libata: ahci enclosure management bit mask
Enclosure management bit mask definitions. Signed-off-by: David Milburn <dmilburn@redhat.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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1 changed files with 23 additions and 12 deletions
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@ -49,6 +49,17 @@
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#define DRV_NAME "ahci"
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#define DRV_VERSION "3.0"
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/* Enclosure Management Control */
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#define EM_CTRL_MSG_TYPE 0x000f0000
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/* Enclosure Management LED Message Type */
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#define EM_MSG_LED_HBA_PORT 0x0000000f
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#define EM_MSG_LED_PMP_SLOT 0x0000ff00
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#define EM_MSG_LED_VALUE 0xffff0000
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#define EM_MSG_LED_VALUE_ACTIVITY 0x00070000
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#define EM_MSG_LED_VALUE_OFF 0xfff80000
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#define EM_MSG_LED_VALUE_ON 0x00010000
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static int ahci_skip_host_reset;
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module_param_named(skip_host_reset, ahci_skip_host_reset, int, 0444);
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MODULE_PARM_DESC(skip_host_reset, "skip global host reset (0=don't skip, 1=skip)");
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@ -1225,7 +1236,7 @@ static void ahci_sw_activity_blink(unsigned long arg)
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u32 activity_led_state;
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unsigned long flags;
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led_message &= 0xffff0000;
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led_message &= EM_MSG_LED_VALUE;
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led_message |= ap->port_no | (link->pmp << 8);
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/* check to see if we've had activity. If so,
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@ -1236,7 +1247,7 @@ static void ahci_sw_activity_blink(unsigned long arg)
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if (emp->saved_activity != emp->activity) {
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emp->saved_activity = emp->activity;
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/* get the current LED state */
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activity_led_state = led_message & 0x00010000;
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activity_led_state = led_message & EM_MSG_LED_VALUE_ON;
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if (activity_led_state)
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activity_led_state = 0;
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@ -1244,14 +1255,14 @@ static void ahci_sw_activity_blink(unsigned long arg)
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activity_led_state = 1;
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/* clear old state */
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led_message &= 0xfff8ffff;
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led_message &= ~EM_MSG_LED_VALUE_ACTIVITY;
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/* toggle state */
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led_message |= (activity_led_state << 16);
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mod_timer(&emp->timer, jiffies + msecs_to_jiffies(100));
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} else {
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/* switch to idle */
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led_message &= 0xfff8ffff;
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led_message &= ~EM_MSG_LED_VALUE_ACTIVITY;
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if (emp->blink_policy == BLINK_OFF)
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led_message |= (1 << 16);
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}
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@ -1300,7 +1311,7 @@ static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state,
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struct ahci_em_priv *emp;
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/* get the slot number from the message */
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pmp = (state & 0x0000ff00) >> 8;
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pmp = (state & EM_MSG_LED_PMP_SLOT) >> 8;
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if (pmp < MAX_SLOTS)
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emp = &pp->em_priv[pmp];
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else
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@ -1325,7 +1336,7 @@ static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state,
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message[0] |= (4 << 8);
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/* ignore 0:4 of byte zero, fill in port info yourself */
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message[1] = ((state & 0xfffffff0) | ap->port_no);
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message[1] = ((state & ~EM_MSG_LED_HBA_PORT) | ap->port_no);
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/* write message to EM_LOC */
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writel(message[0], mmio + hpriv->em_loc);
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@ -1368,7 +1379,7 @@ static ssize_t ahci_led_store(struct ata_port *ap, const char *buf,
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state = simple_strtoul(buf, NULL, 0);
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/* get the slot number from the message */
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pmp = (state & 0x0000ff00) >> 8;
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pmp = (state & EM_MSG_LED_PMP_SLOT) >> 8;
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if (pmp < MAX_SLOTS)
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emp = &pp->em_priv[pmp];
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else
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@ -1379,7 +1390,7 @@ static ssize_t ahci_led_store(struct ata_port *ap, const char *buf,
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* activity led through em_message
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*/
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if (emp->blink_policy)
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state &= 0xfff8ffff;
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state &= ~EM_MSG_LED_VALUE_ACTIVITY;
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return ahci_transmit_led_message(ap, state, size);
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}
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@ -1398,16 +1409,16 @@ static ssize_t ahci_activity_store(struct ata_device *dev, enum sw_activity val)
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link->flags &= ~(ATA_LFLAG_SW_ACTIVITY);
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/* set the LED to OFF */
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port_led_state &= 0xfff80000;
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port_led_state &= EM_MSG_LED_VALUE_OFF;
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port_led_state |= (ap->port_no | (link->pmp << 8));
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ahci_transmit_led_message(ap, port_led_state, 4);
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} else {
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link->flags |= ATA_LFLAG_SW_ACTIVITY;
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if (val == BLINK_OFF) {
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/* set LED to ON for idle */
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port_led_state &= 0xfff80000;
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port_led_state &= EM_MSG_LED_VALUE_OFF;
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port_led_state |= (ap->port_no | (link->pmp << 8));
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port_led_state |= 0x00010000; /* check this */
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port_led_state |= EM_MSG_LED_VALUE_ON; /* check this */
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ahci_transmit_led_message(ap, port_led_state, 4);
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}
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}
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@ -2618,7 +2629,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
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u32 em_loc = readl(mmio + HOST_EM_LOC);
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u32 em_ctl = readl(mmio + HOST_EM_CTL);
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messages = (em_ctl & 0x000f0000) >> 16;
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messages = (em_ctl & EM_CTRL_MSG_TYPE) >> 16;
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/* we only support LED message type right now */
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if ((messages & 0x01) && (ahci_em_messages == 1)) {
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