* Send feedback to <greg@kroah.com>
*
* Jan 12, 2003 - Added 66/100/133MHz PCI-X support,
- * Torben Mathiasen <torben.mathiasen@hp.com>
- *
+ * Torben Mathiasen <torben.mathiasen@hp.com>
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/pci.h>
+#include <linux/pci_hotplug.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include "cpqphp.h"
#include "cpqphp_nvram.h"
-#include "../../../arch/i386/pci/pci.h" /* horrible hack showing how processor dependent we are... */
/* Global variables */
int cpqhp_legacy_mode;
struct controller *cpqhp_ctrl_list; /* = NULL */
struct pci_func *cpqhp_slot_list[256];
+struct irq_routing_table *cpqhp_routing_table;
/* local variables */
static void __iomem *smbios_table;
#define CPQHPC_MODULE_MINOR 208
-static int one_time_init (void);
-static int set_attention_status (struct hotplug_slot *slot, u8 value);
-static int process_SI (struct hotplug_slot *slot);
-static int process_SS (struct hotplug_slot *slot);
-static int hardware_test (struct hotplug_slot *slot, u32 value);
-static int get_power_status (struct hotplug_slot *slot, u8 *value);
-static int get_attention_status (struct hotplug_slot *slot, u8 *value);
-static int get_latch_status (struct hotplug_slot *slot, u8 *value);
-static int get_adapter_status (struct hotplug_slot *slot, u8 *value);
-static int get_max_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value);
-static int get_cur_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value);
-
-static struct hotplug_slot_ops cpqphp_hotplug_slot_ops = {
- .owner = THIS_MODULE,
- .set_attention_status = set_attention_status,
- .enable_slot = process_SI,
- .disable_slot = process_SS,
- .hardware_test = hardware_test,
- .get_power_status = get_power_status,
- .get_attention_status = get_attention_status,
- .get_latch_status = get_latch_status,
- .get_adapter_status = get_adapter_status,
- .get_max_bus_speed = get_max_bus_speed,
- .get_cur_bus_speed = get_cur_bus_speed,
-};
-
-
static inline int is_slot64bit(struct slot *slot)
{
return (readb(slot->p_sm_slot + SMBIOS_SLOT_WIDTH) == 0x06) ? 1 : 0;
/**
* detect_SMBIOS_pointer - find the System Management BIOS Table in mem region.
- *
* @begin: begin pointer for region to be scanned.
* @end: end pointer for region to be scanned.
*
- * Returns pointer to the head of the SMBIOS tables (or NULL)
- *
+ * Returns pointer to the head of the SMBIOS tables (or %NULL).
*/
static void __iomem * detect_SMBIOS_pointer(void __iomem *begin, void __iomem *end)
{
break;
}
}
-
+
if (!status)
fp = NULL;
/**
* init_SERR - Initializes the per slot SERR generation.
+ * @ctrl: controller to use
*
* For unexpected switch opens
- *
*/
static int init_SERR(struct controller * ctrl)
{
tempdword = ctrl->first_slot;
number_of_slots = readb(ctrl->hpc_reg + SLOT_MASK) & 0x0F;
- // Loop through slots
+ /* Loop through slots */
while (number_of_slots) {
physical_slot = tempdword;
writeb(0, ctrl->hpc_reg + SLOT_SERR);
return 0;
}
-
-/* nice debugging output */
-static int pci_print_IRQ_route (void)
+static int init_cpqhp_routing_table(void)
{
- struct irq_routing_table *routing_table;
int len;
- int loop;
-
- u8 tbus, tdevice, tslot;
- routing_table = pcibios_get_irq_routing_table();
- if (routing_table == NULL) {
- err("No BIOS Routing Table??? Not good\n");
+ cpqhp_routing_table = pcibios_get_irq_routing_table();
+ if (cpqhp_routing_table == NULL)
return -ENOMEM;
- }
- len = (routing_table->size - sizeof(struct irq_routing_table)) /
- sizeof(struct irq_info);
- // Make sure I got at least one entry
+ len = cpqhp_routing_table_length();
if (len == 0) {
- kfree(routing_table);
+ kfree(cpqhp_routing_table);
+ cpqhp_routing_table = NULL;
return -1;
}
- dbg("bus dev func slot\n");
+ return 0;
+}
+
+/* nice debugging output */
+static void pci_print_IRQ_route(void)
+{
+ int len;
+ int loop;
+ u8 tbus, tdevice, tslot;
+
+ len = cpqhp_routing_table_length();
+ dbg("bus dev func slot\n");
for (loop = 0; loop < len; ++loop) {
- tbus = routing_table->slots[loop].bus;
- tdevice = routing_table->slots[loop].devfn;
- tslot = routing_table->slots[loop].slot;
+ tbus = cpqhp_routing_table->slots[loop].bus;
+ tdevice = cpqhp_routing_table->slots[loop].devfn;
+ tslot = cpqhp_routing_table->slots[loop].slot;
dbg("%d %d %d %d\n", tbus, tdevice >> 3, tdevice & 0x7, tslot);
}
- kfree(routing_table);
- return 0;
+ return;
}
/**
* get_subsequent_smbios_entry: get the next entry from bios table.
- *
- * Gets the first entry if previous == NULL
- * Otherwise, returns the next entry
- * Uses global SMBIOS Table pointer
- *
+ * @smbios_start: where to start in the SMBIOS table
+ * @smbios_table: location of the SMBIOS table
* @curr: %NULL or pointer to previously returned structure
*
- * returns a pointer to an SMBIOS structure or NULL if none found
+ * Gets the first entry if previous == NULL;
+ * otherwise, returns the next entry.
+ * Uses global SMBIOS Table pointer.
+ *
+ * Returns a pointer to an SMBIOS structure or NULL if none found.
*/
static void __iomem *get_subsequent_smbios_entry(void __iomem *smbios_start,
void __iomem *smbios_table,
void __iomem *p_max;
if (!smbios_table || !curr)
- return(NULL);
+ return NULL;
- // set p_max to the end of the table
+ /* set p_max to the end of the table */
p_max = smbios_start + readw(smbios_table + ST_LENGTH);
p_temp = curr;
while ((p_temp < p_max) && !bail) {
/* Look for the double NULL terminator
* The first condition is the previous byte
- * and the second is the curr */
- if (!previous_byte && !(readb(p_temp))) {
+ * and the second is the curr
+ */
+ if (!previous_byte && !(readb(p_temp)))
bail = 1;
- }
previous_byte = readb(p_temp);
p_temp++;
}
- if (p_temp < p_max) {
+ if (p_temp < p_max)
return p_temp;
- } else {
+ else
return NULL;
- }
}
/**
- * get_SMBIOS_entry
- *
- * @type:SMBIOS structure type to be returned
+ * get_SMBIOS_entry - return the requested SMBIOS entry or %NULL
+ * @smbios_start: where to start in the SMBIOS table
+ * @smbios_table: location of the SMBIOS table
+ * @type: SMBIOS structure type to be returned
* @previous: %NULL or pointer to previously returned structure
*
- * Gets the first entry of the specified type if previous == NULL
+ * Gets the first entry of the specified type if previous == %NULL;
* Otherwise, returns the next entry of the given type.
- * Uses global SMBIOS Table pointer
- * Uses get_subsequent_smbios_entry
+ * Uses global SMBIOS Table pointer.
+ * Uses get_subsequent_smbios_entry.
*
- * returns a pointer to an SMBIOS structure or %NULL if none found
+ * Returns a pointer to an SMBIOS structure or %NULL if none found.
*/
static void __iomem *get_SMBIOS_entry(void __iomem *smbios_start,
void __iomem *smbios_table,
if (!smbios_table)
return NULL;
- if (!previous) {
+ if (!previous)
previous = smbios_start;
- } else {
+ else
previous = get_subsequent_smbios_entry(smbios_start,
smbios_table, previous);
- }
- while (previous) {
- if (readb(previous + SMBIOS_GENERIC_TYPE) != type) {
+ while (previous)
+ if (readb(previous + SMBIOS_GENERIC_TYPE) != type)
previous = get_subsequent_smbios_entry(smbios_start,
smbios_table, previous);
- } else {
+ else
break;
- }
- }
return previous;
}
{
struct slot *slot = hotplug_slot->private;
- dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+ dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
kfree(slot->hotplug_slot->info);
- kfree(slot->hotplug_slot->name);
kfree(slot->hotplug_slot);
kfree(slot);
}
-static int ctrl_slot_setup(struct controller *ctrl,
- void __iomem *smbios_start,
- void __iomem *smbios_table)
-{
- struct slot *slot;
- struct hotplug_slot *hotplug_slot;
- struct hotplug_slot_info *hotplug_slot_info;
- u8 number_of_slots;
- u8 slot_device;
- u8 slot_number;
- u8 ctrl_slot;
- u32 tempdword;
- void __iomem *slot_entry= NULL;
- int result = -ENOMEM;
-
- dbg("%s\n", __FUNCTION__);
-
- tempdword = readl(ctrl->hpc_reg + INT_INPUT_CLEAR);
-
- number_of_slots = readb(ctrl->hpc_reg + SLOT_MASK) & 0x0F;
- slot_device = readb(ctrl->hpc_reg + SLOT_MASK) >> 4;
- slot_number = ctrl->first_slot;
-
- while (number_of_slots) {
- slot = kzalloc(sizeof(*slot), GFP_KERNEL);
- if (!slot)
- goto error;
-
- slot->hotplug_slot = kzalloc(sizeof(*(slot->hotplug_slot)),
- GFP_KERNEL);
- if (!slot->hotplug_slot)
- goto error_slot;
- hotplug_slot = slot->hotplug_slot;
-
- hotplug_slot->info =
- kzalloc(sizeof(*(hotplug_slot->info)),
- GFP_KERNEL);
- if (!hotplug_slot->info)
- goto error_hpslot;
- hotplug_slot_info = hotplug_slot->info;
- hotplug_slot->name = kmalloc(SLOT_NAME_SIZE, GFP_KERNEL);
-
- if (!hotplug_slot->name)
- goto error_info;
-
- slot->ctrl = ctrl;
- slot->bus = ctrl->bus;
- slot->device = slot_device;
- slot->number = slot_number;
- dbg("slot->number = %d\n", slot->number);
-
- slot_entry = get_SMBIOS_entry(smbios_start, smbios_table, 9,
- slot_entry);
-
- while (slot_entry && (readw(slot_entry + SMBIOS_SLOT_NUMBER) !=
- slot->number)) {
- slot_entry = get_SMBIOS_entry(smbios_start,
- smbios_table, 9, slot_entry);
- }
-
- slot->p_sm_slot = slot_entry;
-
- init_timer(&slot->task_event);
- slot->task_event.expires = jiffies + 5 * HZ;
- slot->task_event.function = cpqhp_pushbutton_thread;
-
- //FIXME: these capabilities aren't used but if they are
- // they need to be correctly implemented
- slot->capabilities |= PCISLOT_REPLACE_SUPPORTED;
- slot->capabilities |= PCISLOT_INTERLOCK_SUPPORTED;
-
- if (is_slot64bit(slot))
- slot->capabilities |= PCISLOT_64_BIT_SUPPORTED;
- if (is_slot66mhz(slot))
- slot->capabilities |= PCISLOT_66_MHZ_SUPPORTED;
- if (ctrl->speed == PCI_SPEED_66MHz)
- slot->capabilities |= PCISLOT_66_MHZ_OPERATION;
-
- ctrl_slot =
- slot_device - (readb(ctrl->hpc_reg + SLOT_MASK) >> 4);
-
- // Check presence
- slot->capabilities |=
- ((((~tempdword) >> 23) |
- ((~tempdword) >> 15)) >> ctrl_slot) & 0x02;
- // Check the switch state
- slot->capabilities |=
- ((~tempdword & 0xFF) >> ctrl_slot) & 0x01;
- // Check the slot enable
- slot->capabilities |=
- ((read_slot_enable(ctrl) << 2) >> ctrl_slot) & 0x04;
-
- /* register this slot with the hotplug pci core */
- hotplug_slot->release = &release_slot;
- hotplug_slot->private = slot;
- make_slot_name(hotplug_slot->name, SLOT_NAME_SIZE, slot);
- hotplug_slot->ops = &cpqphp_hotplug_slot_ops;
-
- hotplug_slot_info->power_status = get_slot_enabled(ctrl, slot);
- hotplug_slot_info->attention_status =
- cpq_get_attention_status(ctrl, slot);
- hotplug_slot_info->latch_status =
- cpq_get_latch_status(ctrl, slot);
- hotplug_slot_info->adapter_status =
- get_presence_status(ctrl, slot);
-
- dbg("registering bus %d, dev %d, number %d, "
- "ctrl->slot_device_offset %d, slot %d\n",
- slot->bus, slot->device,
- slot->number, ctrl->slot_device_offset,
- slot_number);
- result = pci_hp_register(hotplug_slot);
- if (result) {
- err("pci_hp_register failed with error %d\n", result);
- goto error_name;
- }
-
- slot->next = ctrl->slot;
- ctrl->slot = slot;
-
- number_of_slots--;
- slot_device++;
- slot_number++;
- }
-
- return 0;
-error_name:
- kfree(hotplug_slot->name);
-error_info:
- kfree(hotplug_slot_info);
-error_hpslot:
- kfree(hotplug_slot);
-error_slot:
- kfree(slot);
-error:
- return result;
-}
-
static int ctrl_slot_cleanup (struct controller * ctrl)
{
struct slot *old_slot, *next_slot;
cpqhp_remove_debugfs_files(ctrl);
- //Free IRQ associated with hot plug device
+ /* Free IRQ associated with hot plug device */
free_irq(ctrl->interrupt, ctrl);
- //Unmap the memory
+ /* Unmap the memory */
iounmap(ctrl->hpc_reg);
- //Finally reclaim PCI mem
+ /* Finally reclaim PCI mem */
release_mem_region(pci_resource_start(ctrl->pci_dev, 0),
pci_resource_len(ctrl->pci_dev, 0));
- return(0);
+ return 0;
}
-//============================================================================
-// function: get_slot_mapping
-//
-// Description: Attempts to determine a logical slot mapping for a PCI
-// device. Won't work for more than one PCI-PCI bridge
-// in a slot.
-//
-// Input: u8 bus_num - bus number of PCI device
-// u8 dev_num - device number of PCI device
-// u8 *slot - Pointer to u8 where slot number will
-// be returned
-//
-// Output: SUCCESS or FAILURE
-//=============================================================================
+/**
+ * get_slot_mapping - determine logical slot mapping for PCI device
+ *
+ * Won't work for more than one PCI-PCI bridge in a slot.
+ *
+ * @bus_num - bus number of PCI device
+ * @dev_num - device number of PCI device
+ * @slot - Pointer to u8 where slot number will be returned
+ *
+ * Output: SUCCESS or FAILURE
+ */
static int
get_slot_mapping(struct pci_bus *bus, u8 bus_num, u8 dev_num, u8 *slot)
{
- struct irq_routing_table *PCIIRQRoutingInfoLength;
u32 work;
long len;
long loop;
u8 tbus, tdevice, tslot, bridgeSlot;
- dbg("%s: %p, %d, %d, %p\n", __FUNCTION__, bus, bus_num, dev_num, slot);
+ dbg("%s: %p, %d, %d, %p\n", __func__, bus, bus_num, dev_num, slot);
bridgeSlot = 0xFF;
- PCIIRQRoutingInfoLength = pcibios_get_irq_routing_table();
- if (!PCIIRQRoutingInfoLength)
- return -1;
-
- len = (PCIIRQRoutingInfoLength->size -
- sizeof(struct irq_routing_table)) / sizeof(struct irq_info);
- // Make sure I got at least one entry
- if (len == 0) {
- kfree(PCIIRQRoutingInfoLength);
- return -1;
- }
-
+ len = cpqhp_routing_table_length();
for (loop = 0; loop < len; ++loop) {
- tbus = PCIIRQRoutingInfoLength->slots[loop].bus;
- tdevice = PCIIRQRoutingInfoLength->slots[loop].devfn >> 3;
- tslot = PCIIRQRoutingInfoLength->slots[loop].slot;
+ tbus = cpqhp_routing_table->slots[loop].bus;
+ tdevice = cpqhp_routing_table->slots[loop].devfn >> 3;
+ tslot = cpqhp_routing_table->slots[loop].slot;
if ((tbus == bus_num) && (tdevice == dev_num)) {
*slot = tslot;
- kfree(PCIIRQRoutingInfoLength);
return 0;
} else {
/* Did not get a match on the target PCI device. Check
- * if the current IRQ table entry is a PCI-to-PCI bridge
- * device. If so, and it's secondary bus matches the
- * bus number for the target device, I need to save the
- * bridge's slot number. If I can not find an entry for
- * the target device, I will have to assume it's on the
- * other side of the bridge, and assign it the bridge's
- * slot. */
+ * if the current IRQ table entry is a PCI-to-PCI
+ * bridge device. If so, and it's secondary bus
+ * matches the bus number for the target device, I need
+ * to save the bridge's slot number. If I can not find
+ * an entry for the target device, I will have to
+ * assume it's on the other side of the bridge, and
+ * assign it the bridge's slot.
+ */
bus->number = tbus;
pci_bus_read_config_dword(bus, PCI_DEVFN(tdevice, 0),
- PCI_REVISION_ID, &work);
+ PCI_CLASS_REVISION, &work);
if ((work >> 8) == PCI_TO_PCI_BRIDGE_CLASS) {
pci_bus_read_config_dword(bus,
PCI_DEVFN(tdevice, 0),
PCI_PRIMARY_BUS, &work);
// See if bridge's secondary bus matches target bus.
- if (((work >> 8) & 0x000000FF) == (long) bus_num) {
+ if (((work >> 8) & 0x000000FF) == (long) bus_num)
bridgeSlot = tslot;
- }
}
}
}
- // If we got here, we didn't find an entry in the IRQ mapping table
- // for the target PCI device. If we did determine that the target
- // device is on the other side of a PCI-to-PCI bridge, return the
- // slot number for the bridge.
+ /* If we got here, we didn't find an entry in the IRQ mapping table for
+ * the target PCI device. If we did determine that the target device
+ * is on the other side of a PCI-to-PCI bridge, return the slot number
+ * for the bridge.
+ */
if (bridgeSlot != 0xFF) {
*slot = bridgeSlot;
- kfree(PCIIRQRoutingInfoLength);
return 0;
}
- kfree(PCIIRQRoutingInfoLength);
- // Couldn't find an entry in the routing table for this PCI device
+ /* Couldn't find an entry in the routing table for this PCI device */
return -1;
}
/**
* cpqhp_set_attention_status - Turns the Amber LED for a slot on or off
- *
+ * @ctrl: struct controller to use
+ * @func: PCI device/function info
+ * @status: LED control flag: 1 = LED on, 0 = LED off
*/
static int
cpqhp_set_attention_status(struct controller *ctrl, struct pci_func *func,
u8 hp_slot;
if (func == NULL)
- return(1);
+ return 1;
hp_slot = func->device - ctrl->slot_device_offset;
- // Wait for exclusive access to hardware
+ /* Wait for exclusive access to hardware */
mutex_lock(&ctrl->crit_sect);
- if (status == 1) {
+ if (status == 1)
amber_LED_on (ctrl, hp_slot);
- } else if (status == 0) {
+ else if (status == 0)
amber_LED_off (ctrl, hp_slot);
- } else {
- // Done with exclusive hardware access
+ else {
+ /* Done with exclusive hardware access */
mutex_unlock(&ctrl->crit_sect);
- return(1);
+ return 1;
}
set_SOGO(ctrl);
- // Wait for SOBS to be unset
+ /* Wait for SOBS to be unset */
wait_for_ctrl_irq (ctrl);
- // Done with exclusive hardware access
+ /* Done with exclusive hardware access */
mutex_unlock(&ctrl->crit_sect);
- return(0);
+ return 0;
}
/**
* set_attention_status - Turns the Amber LED for a slot on or off
- *
+ * @hotplug_slot: slot to change LED on
+ * @status: LED control flag
*/
static int set_attention_status (struct hotplug_slot *hotplug_slot, u8 status)
{
u8 device;
u8 function;
- dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+ dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
if (cpqhp_get_bus_dev(ctrl, &bus, &devfn, slot->number) == -1)
return -ENODEV;
u8 device;
u8 function;
- dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+ dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
if (cpqhp_get_bus_dev(ctrl, &bus, &devfn, slot->number) == -1)
return -ENODEV;
u8 device;
u8 function;
- dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+ dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
if (cpqhp_get_bus_dev(ctrl, &bus, &devfn, slot->number) == -1)
return -ENODEV;
if (!slot_func)
return -ENODEV;
- dbg("In %s, slot_func = %p, ctrl = %p\n", __FUNCTION__, slot_func, ctrl);
+ dbg("In %s, slot_func = %p, ctrl = %p\n", __func__, slot_func, ctrl);
return cpqhp_process_SS(ctrl, slot_func);
}
struct slot *slot = hotplug_slot->private;
struct controller *ctrl = slot->ctrl;
- dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+ dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
- return cpqhp_hardware_test(ctrl, value);
+ return cpqhp_hardware_test(ctrl, value);
}
struct slot *slot = hotplug_slot->private;
struct controller *ctrl = slot->ctrl;
- dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+ dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
*value = get_slot_enabled(ctrl, slot);
return 0;
{
struct slot *slot = hotplug_slot->private;
struct controller *ctrl = slot->ctrl;
-
- dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+
+ dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
*value = cpq_get_attention_status(ctrl, slot);
return 0;
struct slot *slot = hotplug_slot->private;
struct controller *ctrl = slot->ctrl;
- dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+ dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
*value = cpq_get_latch_status(ctrl, slot);
struct slot *slot = hotplug_slot->private;
struct controller *ctrl = slot->ctrl;
- dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+ dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
*value = get_presence_status(ctrl, slot);
struct slot *slot = hotplug_slot->private;
struct controller *ctrl = slot->ctrl;
- dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+ dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
*value = ctrl->speed_capability;
struct slot *slot = hotplug_slot->private;
struct controller *ctrl = slot->ctrl;
- dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+ dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
*value = ctrl->speed;
return 0;
}
-static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- u8 num_of_slots = 0;
- u8 hp_slot = 0;
- u8 device;
- u8 rev;
- u8 bus_cap;
- u16 temp_word;
- u16 vendor_id;
- u16 subsystem_vid;
- u16 subsystem_deviceid;
- u32 rc;
- struct controller *ctrl;
- struct pci_func *func;
- int err;
+static struct hotplug_slot_ops cpqphp_hotplug_slot_ops = {
+ .set_attention_status = set_attention_status,
+ .enable_slot = process_SI,
+ .disable_slot = process_SS,
+ .hardware_test = hardware_test,
+ .get_power_status = get_power_status,
+ .get_attention_status = get_attention_status,
+ .get_latch_status = get_latch_status,
+ .get_adapter_status = get_adapter_status,
+ .get_max_bus_speed = get_max_bus_speed,
+ .get_cur_bus_speed = get_cur_bus_speed,
+};
- err = pci_enable_device(pdev);
- if (err) {
- printk(KERN_ERR MY_NAME ": cannot enable PCI device %s (%d)\n",
- pci_name(pdev), err);
- return err;
- }
+#define SLOT_NAME_SIZE 10
- // Need to read VID early b/c it's used to differentiate CPQ and INTC discovery
- rc = pci_read_config_word(pdev, PCI_VENDOR_ID, &vendor_id);
- if (rc || ((vendor_id != PCI_VENDOR_ID_COMPAQ) && (vendor_id != PCI_VENDOR_ID_INTEL))) {
- err(msg_HPC_non_compaq_or_intel);
- rc = -ENODEV;
- goto err_disable_device;
- }
- dbg("Vendor ID: %x\n", vendor_id);
+static int ctrl_slot_setup(struct controller *ctrl,
+ void __iomem *smbios_start,
+ void __iomem *smbios_table)
+{
+ struct slot *slot;
+ struct hotplug_slot *hotplug_slot;
+ struct hotplug_slot_info *hotplug_slot_info;
+ u8 number_of_slots;
+ u8 slot_device;
+ u8 slot_number;
+ u8 ctrl_slot;
+ u32 tempdword;
+ char name[SLOT_NAME_SIZE];
+ void __iomem *slot_entry= NULL;
+ int result = -ENOMEM;
- rc = pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
- dbg("revision: %d\n", rev);
- if (rc || ((vendor_id == PCI_VENDOR_ID_COMPAQ) && (!rev))) {
- err(msg_HPC_rev_error);
- rc = -ENODEV;
- goto err_disable_device;
- }
+ dbg("%s\n", __func__);
- /* Check for the proper subsytem ID's
- * Intel uses a different SSID programming model than Compaq.
- * For Intel, each SSID bit identifies a PHP capability.
- * Also Intel HPC's may have RID=0.
- */
- if ((rev > 2) || (vendor_id == PCI_VENDOR_ID_INTEL)) {
- // TODO: This code can be made to support non-Compaq or Intel subsystem IDs
- rc = pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vid);
- if (rc) {
- err("%s : pci_read_config_word failed\n", __FUNCTION__);
- goto err_disable_device;
- }
- dbg("Subsystem Vendor ID: %x\n", subsystem_vid);
- if ((subsystem_vid != PCI_VENDOR_ID_COMPAQ) && (subsystem_vid != PCI_VENDOR_ID_INTEL)) {
- err(msg_HPC_non_compaq_or_intel);
- rc = -ENODEV;
- goto err_disable_device;
- }
+ tempdword = readl(ctrl->hpc_reg + INT_INPUT_CLEAR);
- ctrl = kzalloc(sizeof(struct controller), GFP_KERNEL);
- if (!ctrl) {
- err("%s : out of memory\n", __FUNCTION__);
- rc = -ENOMEM;
- goto err_disable_device;
- }
+ number_of_slots = readb(ctrl->hpc_reg + SLOT_MASK) & 0x0F;
+ slot_device = readb(ctrl->hpc_reg + SLOT_MASK) >> 4;
+ slot_number = ctrl->first_slot;
- rc = pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &subsystem_deviceid);
- if (rc) {
- err("%s : pci_read_config_word failed\n", __FUNCTION__);
- goto err_free_ctrl;
+ while (number_of_slots) {
+ slot = kzalloc(sizeof(*slot), GFP_KERNEL);
+ if (!slot)
+ goto error;
+
+ slot->hotplug_slot = kzalloc(sizeof(*(slot->hotplug_slot)),
+ GFP_KERNEL);
+ if (!slot->hotplug_slot)
+ goto error_slot;
+ hotplug_slot = slot->hotplug_slot;
+
+ hotplug_slot->info = kzalloc(sizeof(*(hotplug_slot->info)),
+ GFP_KERNEL);
+ if (!hotplug_slot->info)
+ goto error_hpslot;
+ hotplug_slot_info = hotplug_slot->info;
+
+ slot->ctrl = ctrl;
+ slot->bus = ctrl->bus;
+ slot->device = slot_device;
+ slot->number = slot_number;
+ dbg("slot->number = %u\n", slot->number);
+
+ slot_entry = get_SMBIOS_entry(smbios_start, smbios_table, 9,
+ slot_entry);
+
+ while (slot_entry && (readw(slot_entry + SMBIOS_SLOT_NUMBER) !=
+ slot->number)) {
+ slot_entry = get_SMBIOS_entry(smbios_start,
+ smbios_table, 9, slot_entry);
}
- info("Hot Plug Subsystem Device ID: %x\n", subsystem_deviceid);
-
- /* Set Vendor ID, so it can be accessed later from other functions */
- ctrl->vendor_id = vendor_id;
-
- switch (subsystem_vid) {
- case PCI_VENDOR_ID_COMPAQ:
- if (rev >= 0x13) { /* CIOBX */
- ctrl->push_flag = 1;
- ctrl->slot_switch_type = 1;
- ctrl->push_button = 1;
- ctrl->pci_config_space = 1;
- ctrl->defeature_PHP = 1;
- ctrl->pcix_support = 1;
- ctrl->pcix_speed_capability = 1;
- pci_read_config_byte(pdev, 0x41, &bus_cap);
- if (bus_cap & 0x80) {
- dbg("bus max supports 133MHz PCI-X\n");
- ctrl->speed_capability = PCI_SPEED_133MHz_PCIX;
- break;
- }
- if (bus_cap & 0x40) {
- dbg("bus max supports 100MHz PCI-X\n");
- ctrl->speed_capability = PCI_SPEED_100MHz_PCIX;
- break;
- }
- if (bus_cap & 20) {
- dbg("bus max supports 66MHz PCI-X\n");
- ctrl->speed_capability = PCI_SPEED_66MHz_PCIX;
- break;
- }
- if (bus_cap & 10) {
- dbg("bus max supports 66MHz PCI\n");
- ctrl->speed_capability = PCI_SPEED_66MHz;
- break;
- }
-
- break;
- }
-
- switch (subsystem_deviceid) {
- case PCI_SUB_HPC_ID:
- /* Original 6500/7000 implementation */
- ctrl->slot_switch_type = 1;
- ctrl->speed_capability = PCI_SPEED_33MHz;
- ctrl->push_button = 0;
- ctrl->pci_config_space = 1;
- ctrl->defeature_PHP = 1;
- ctrl->pcix_support = 0;
- ctrl->pcix_speed_capability = 0;
- break;
- case PCI_SUB_HPC_ID2:
- /* First Pushbutton implementation */
- ctrl->push_flag = 1;
- ctrl->slot_switch_type = 1;
- ctrl->speed_capability = PCI_SPEED_33MHz;
- ctrl->push_button = 1;
- ctrl->pci_config_space = 1;
- ctrl->defeature_PHP = 1;
- ctrl->pcix_support = 0;
- ctrl->pcix_speed_capability = 0;
- break;
- case PCI_SUB_HPC_ID_INTC:
- /* Third party (6500/7000) */
- ctrl->slot_switch_type = 1;
- ctrl->speed_capability = PCI_SPEED_33MHz;
- ctrl->push_button = 0;
- ctrl->pci_config_space = 1;
- ctrl->defeature_PHP = 1;
- ctrl->pcix_support = 0;
- ctrl->pcix_speed_capability = 0;
- break;
- case PCI_SUB_HPC_ID3:
- /* First 66 Mhz implementation */
- ctrl->push_flag = 1;
- ctrl->slot_switch_type = 1;
- ctrl->speed_capability = PCI_SPEED_66MHz;
- ctrl->push_button = 1;
- ctrl->pci_config_space = 1;
- ctrl->defeature_PHP = 1;
- ctrl->pcix_support = 0;
- ctrl->pcix_speed_capability = 0;
- break;
- case PCI_SUB_HPC_ID4:
- /* First PCI-X implementation, 100MHz */
- ctrl->push_flag = 1;
- ctrl->slot_switch_type = 1;
- ctrl->speed_capability = PCI_SPEED_100MHz_PCIX;
- ctrl->push_button = 1;
- ctrl->pci_config_space = 1;
- ctrl->defeature_PHP = 1;
- ctrl->pcix_support = 1;
- ctrl->pcix_speed_capability = 0;
- break;
- default:
- err(msg_HPC_not_supported);
- rc = -ENODEV;
- goto err_free_ctrl;
- }
- break;
+ slot->p_sm_slot = slot_entry;
- case PCI_VENDOR_ID_INTEL:
- /* Check for speed capability (0=33, 1=66) */
- if (subsystem_deviceid & 0x0001) {
- ctrl->speed_capability = PCI_SPEED_66MHz;
- } else {
- ctrl->speed_capability = PCI_SPEED_33MHz;
- }
-
- /* Check for push button */
- if (subsystem_deviceid & 0x0002) {
- /* no push button */
- ctrl->push_button = 0;
- } else {
- /* push button supported */
- ctrl->push_button = 1;
- }
-
- /* Check for slot switch type (0=mechanical, 1=not mechanical) */
- if (subsystem_deviceid & 0x0004) {
- /* no switch */
- ctrl->slot_switch_type = 0;
- } else {
- /* switch */
- ctrl->slot_switch_type = 1;
- }
-
- /* PHP Status (0=De-feature PHP, 1=Normal operation) */
- if (subsystem_deviceid & 0x0008) {
- ctrl->defeature_PHP = 1; // PHP supported
- } else {
- ctrl->defeature_PHP = 0; // PHP not supported
- }
-
- /* Alternate Base Address Register Interface (0=not supported, 1=supported) */
- if (subsystem_deviceid & 0x0010) {
- ctrl->alternate_base_address = 1; // supported
- } else {
- ctrl->alternate_base_address = 0; // not supported
- }
-
- /* PCI Config Space Index (0=not supported, 1=supported) */
- if (subsystem_deviceid & 0x0020) {
- ctrl->pci_config_space = 1; // supported
- } else {
- ctrl->pci_config_space = 0; // not supported
- }
-
- /* PCI-X support */
- if (subsystem_deviceid & 0x0080) {
- /* PCI-X capable */
- ctrl->pcix_support = 1;
- /* Frequency of operation in PCI-X mode */
- if (subsystem_deviceid & 0x0040) {
- /* 133MHz PCI-X if bit 7 is 1 */
- ctrl->pcix_speed_capability = 1;
- } else {
- /* 100MHz PCI-X if bit 7 is 1 and bit 0 is 0, */
- /* 66MHz PCI-X if bit 7 is 1 and bit 0 is 1 */
- ctrl->pcix_speed_capability = 0;
- }
- } else {
- /* Conventional PCI */
- ctrl->pcix_support = 0;
- ctrl->pcix_speed_capability = 0;
- }
- break;
+ init_timer(&slot->task_event);
+ slot->task_event.expires = jiffies + 5 * HZ;
+ slot->task_event.function = cpqhp_pushbutton_thread;
+
+ /*FIXME: these capabilities aren't used but if they are
+ * they need to be correctly implemented
+ */
+ slot->capabilities |= PCISLOT_REPLACE_SUPPORTED;
+ slot->capabilities |= PCISLOT_INTERLOCK_SUPPORTED;
- default:
- err(msg_HPC_not_supported);
- rc = -ENODEV;
- goto err_free_ctrl;
+ if (is_slot64bit(slot))
+ slot->capabilities |= PCISLOT_64_BIT_SUPPORTED;
+ if (is_slot66mhz(slot))
+ slot->capabilities |= PCISLOT_66_MHZ_SUPPORTED;
+ if (ctrl->speed == PCI_SPEED_66MHz)
+ slot->capabilities |= PCISLOT_66_MHZ_OPERATION;
+
+ ctrl_slot =
+ slot_device - (readb(ctrl->hpc_reg + SLOT_MASK) >> 4);
+
+ /* Check presence */
+ slot->capabilities |=
+ ((((~tempdword) >> 23) |
+ ((~tempdword) >> 15)) >> ctrl_slot) & 0x02;
+ /* Check the switch state */
+ slot->capabilities |=
+ ((~tempdword & 0xFF) >> ctrl_slot) & 0x01;
+ /* Check the slot enable */
+ slot->capabilities |=
+ ((read_slot_enable(ctrl) << 2) >> ctrl_slot) & 0x04;
+
+ /* register this slot with the hotplug pci core */
+ hotplug_slot->release = &release_slot;
+ hotplug_slot->private = slot;
+ snprintf(name, SLOT_NAME_SIZE, "%u", slot->number);
+ hotplug_slot->ops = &cpqphp_hotplug_slot_ops;
+
+ hotplug_slot_info->power_status = get_slot_enabled(ctrl, slot);
+ hotplug_slot_info->attention_status =
+ cpq_get_attention_status(ctrl, slot);
+ hotplug_slot_info->latch_status =
+ cpq_get_latch_status(ctrl, slot);
+ hotplug_slot_info->adapter_status =
+ get_presence_status(ctrl, slot);
+
+ dbg("registering bus %d, dev %d, number %d, "
+ "ctrl->slot_device_offset %d, slot %d\n",
+ slot->bus, slot->device,
+ slot->number, ctrl->slot_device_offset,
+ slot_number);
+ result = pci_hp_register(hotplug_slot,
+ ctrl->pci_dev->bus,
+ slot->device,
+ name);
+ if (result) {
+ err("pci_hp_register failed with error %d\n", result);
+ goto error_info;
}
- } else {
+ slot->next = ctrl->slot;
+ ctrl->slot = slot;
+
+ number_of_slots--;
+ slot_device++;
+ slot_number++;
+ }
+
+ return 0;
+error_info:
+ kfree(hotplug_slot_info);
+error_hpslot:
+ kfree(hotplug_slot);
+error_slot:
+ kfree(slot);
+error:
+ return result;
+}
+
+static int one_time_init(void)
+{
+ int loop;
+ int retval = 0;
+
+ if (initialized)
+ return 0;
+
+ power_mode = 0;
+
+ retval = init_cpqhp_routing_table();
+ if (retval)
+ goto error;
+
+ if (cpqhp_debug)
+ pci_print_IRQ_route();
+
+ dbg("Initialize + Start the notification mechanism \n");
+
+ retval = cpqhp_event_start_thread();
+ if (retval)
+ goto error;
+
+ dbg("Initialize slot lists\n");
+ for (loop = 0; loop < 256; loop++)
+ cpqhp_slot_list[loop] = NULL;
+
+ /* FIXME: We also need to hook the NMI handler eventually.
+ * this also needs to be worked with Christoph
+ * register_NMI_handler();
+ */
+ /* Map rom address */
+ cpqhp_rom_start = ioremap(ROM_PHY_ADDR, ROM_PHY_LEN);
+ if (!cpqhp_rom_start) {
+ err ("Could not ioremap memory region for ROM\n");
+ retval = -EIO;
+ goto error;
+ }
+
+ /* Now, map the int15 entry point if we are on compaq specific
+ * hardware
+ */
+ compaq_nvram_init(cpqhp_rom_start);
+
+ /* Map smbios table entry point structure */
+ smbios_table = detect_SMBIOS_pointer(cpqhp_rom_start,
+ cpqhp_rom_start + ROM_PHY_LEN);
+ if (!smbios_table) {
+ err ("Could not find the SMBIOS pointer in memory\n");
+ retval = -EIO;
+ goto error_rom_start;
+ }
+
+ smbios_start = ioremap(readl(smbios_table + ST_ADDRESS),
+ readw(smbios_table + ST_LENGTH));
+ if (!smbios_start) {
+ err ("Could not ioremap memory region taken from SMBIOS values\n");
+ retval = -EIO;
+ goto error_smbios_start;
+ }
+
+ initialized = 1;
+
+ return retval;
+
+error_smbios_start:
+ iounmap(smbios_start);
+error_rom_start:
+ iounmap(cpqhp_rom_start);
+error:
+ return retval;
+}
+
+static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ u8 num_of_slots = 0;
+ u8 hp_slot = 0;
+ u8 device;
+ u8 bus_cap;
+ u16 temp_word;
+ u16 vendor_id;
+ u16 subsystem_vid;
+ u16 subsystem_deviceid;
+ u32 rc;
+ struct controller *ctrl;
+ struct pci_func *func;
+ int err;
+
+ err = pci_enable_device(pdev);
+ if (err) {
+ printk(KERN_ERR MY_NAME ": cannot enable PCI device %s (%d)\n",
+ pci_name(pdev), err);
+ return err;
+ }
+
+ /* Need to read VID early b/c it's used to differentiate CPQ and INTC
+ * discovery
+ */
+ rc = pci_read_config_word(pdev, PCI_VENDOR_ID, &vendor_id);
+ if (rc || ((vendor_id != PCI_VENDOR_ID_COMPAQ) && (vendor_id != PCI_VENDOR_ID_INTEL))) {
+ err(msg_HPC_non_compaq_or_intel);
+ rc = -ENODEV;
+ goto err_disable_device;
+ }
+ dbg("Vendor ID: %x\n", vendor_id);
+
+ dbg("revision: %d\n", pdev->revision);
+ if ((vendor_id == PCI_VENDOR_ID_COMPAQ) && (!pdev->revision)) {
+ err(msg_HPC_rev_error);
+ rc = -ENODEV;
+ goto err_disable_device;
+ }
+
+ /* Check for the proper subsytem ID's
+ * Intel uses a different SSID programming model than Compaq.
+ * For Intel, each SSID bit identifies a PHP capability.
+ * Also Intel HPC's may have RID=0.
+ */
+ if ((pdev->revision <= 2) && (vendor_id != PCI_VENDOR_ID_INTEL)) {
err(msg_HPC_not_supported);
return -ENODEV;
}
- // Tell the user that we found one.
+ /* TODO: This code can be made to support non-Compaq or Intel
+ * subsystem IDs
+ */
+ rc = pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vid);
+ if (rc) {
+ err("%s : pci_read_config_word failed\n", __func__);
+ goto err_disable_device;
+ }
+ dbg("Subsystem Vendor ID: %x\n", subsystem_vid);
+ if ((subsystem_vid != PCI_VENDOR_ID_COMPAQ) && (subsystem_vid != PCI_VENDOR_ID_INTEL)) {
+ err(msg_HPC_non_compaq_or_intel);
+ rc = -ENODEV;
+ goto err_disable_device;
+ }
+
+ ctrl = kzalloc(sizeof(struct controller), GFP_KERNEL);
+ if (!ctrl) {
+ err("%s : out of memory\n", __func__);
+ rc = -ENOMEM;
+ goto err_disable_device;
+ }
+
+ rc = pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &subsystem_deviceid);
+ if (rc) {
+ err("%s : pci_read_config_word failed\n", __func__);
+ goto err_free_ctrl;
+ }
+
+ info("Hot Plug Subsystem Device ID: %x\n", subsystem_deviceid);
+
+ /* Set Vendor ID, so it can be accessed later from other
+ * functions
+ */
+ ctrl->vendor_id = vendor_id;
+
+ switch (subsystem_vid) {
+ case PCI_VENDOR_ID_COMPAQ:
+ if (pdev->revision >= 0x13) { /* CIOBX */
+ ctrl->push_flag = 1;
+ ctrl->slot_switch_type = 1;
+ ctrl->push_button = 1;
+ ctrl->pci_config_space = 1;
+ ctrl->defeature_PHP = 1;
+ ctrl->pcix_support = 1;
+ ctrl->pcix_speed_capability = 1;
+ pci_read_config_byte(pdev, 0x41, &bus_cap);
+ if (bus_cap & 0x80) {
+ dbg("bus max supports 133MHz PCI-X\n");
+ ctrl->speed_capability = PCI_SPEED_133MHz_PCIX;
+ break;
+ }
+ if (bus_cap & 0x40) {
+ dbg("bus max supports 100MHz PCI-X\n");
+ ctrl->speed_capability = PCI_SPEED_100MHz_PCIX;
+ break;
+ }
+ if (bus_cap & 20) {
+ dbg("bus max supports 66MHz PCI-X\n");
+ ctrl->speed_capability = PCI_SPEED_66MHz_PCIX;
+ break;
+ }
+ if (bus_cap & 10) {
+ dbg("bus max supports 66MHz PCI\n");
+ ctrl->speed_capability = PCI_SPEED_66MHz;
+ break;
+ }
+
+ break;
+ }
+
+ switch (subsystem_deviceid) {
+ case PCI_SUB_HPC_ID:
+ /* Original 6500/7000 implementation */
+ ctrl->slot_switch_type = 1;
+ ctrl->speed_capability = PCI_SPEED_33MHz;
+ ctrl->push_button = 0;
+ ctrl->pci_config_space = 1;
+ ctrl->defeature_PHP = 1;
+ ctrl->pcix_support = 0;
+ ctrl->pcix_speed_capability = 0;
+ break;
+ case PCI_SUB_HPC_ID2:
+ /* First Pushbutton implementation */
+ ctrl->push_flag = 1;
+ ctrl->slot_switch_type = 1;
+ ctrl->speed_capability = PCI_SPEED_33MHz;
+ ctrl->push_button = 1;
+ ctrl->pci_config_space = 1;
+ ctrl->defeature_PHP = 1;
+ ctrl->pcix_support = 0;
+ ctrl->pcix_speed_capability = 0;
+ break;
+ case PCI_SUB_HPC_ID_INTC:
+ /* Third party (6500/7000) */
+ ctrl->slot_switch_type = 1;
+ ctrl->speed_capability = PCI_SPEED_33MHz;
+ ctrl->push_button = 0;
+ ctrl->pci_config_space = 1;
+ ctrl->defeature_PHP = 1;
+ ctrl->pcix_support = 0;
+ ctrl->pcix_speed_capability = 0;
+ break;
+ case PCI_SUB_HPC_ID3:
+ /* First 66 Mhz implementation */
+ ctrl->push_flag = 1;
+ ctrl->slot_switch_type = 1;
+ ctrl->speed_capability = PCI_SPEED_66MHz;
+ ctrl->push_button = 1;
+ ctrl->pci_config_space = 1;
+ ctrl->defeature_PHP = 1;
+ ctrl->pcix_support = 0;
+ ctrl->pcix_speed_capability = 0;
+ break;
+ case PCI_SUB_HPC_ID4:
+ /* First PCI-X implementation, 100MHz */
+ ctrl->push_flag = 1;
+ ctrl->slot_switch_type = 1;
+ ctrl->speed_capability = PCI_SPEED_100MHz_PCIX;
+ ctrl->push_button = 1;
+ ctrl->pci_config_space = 1;
+ ctrl->defeature_PHP = 1;
+ ctrl->pcix_support = 1;
+ ctrl->pcix_speed_capability = 0;
+ break;
+ default:
+ err(msg_HPC_not_supported);
+ rc = -ENODEV;
+ goto err_free_ctrl;
+ }
+ break;
+
+ case PCI_VENDOR_ID_INTEL:
+ /* Check for speed capability (0=33, 1=66) */
+ if (subsystem_deviceid & 0x0001)
+ ctrl->speed_capability = PCI_SPEED_66MHz;
+ else
+ ctrl->speed_capability = PCI_SPEED_33MHz;
+
+ /* Check for push button */
+ if (subsystem_deviceid & 0x0002)
+ ctrl->push_button = 0;
+ else
+ ctrl->push_button = 1;
+
+ /* Check for slot switch type (0=mechanical, 1=not mechanical) */
+ if (subsystem_deviceid & 0x0004)
+ ctrl->slot_switch_type = 0;
+ else
+ ctrl->slot_switch_type = 1;
+
+ /* PHP Status (0=De-feature PHP, 1=Normal operation) */
+ if (subsystem_deviceid & 0x0008)
+ ctrl->defeature_PHP = 1; /* PHP supported */
+ else
+ ctrl->defeature_PHP = 0; /* PHP not supported */
+
+ /* Alternate Base Address Register Interface
+ * (0=not supported, 1=supported)
+ */
+ if (subsystem_deviceid & 0x0010)
+ ctrl->alternate_base_address = 1;
+ else
+ ctrl->alternate_base_address = 0;
+
+ /* PCI Config Space Index (0=not supported, 1=supported) */
+ if (subsystem_deviceid & 0x0020)
+ ctrl->pci_config_space = 1;
+ else
+ ctrl->pci_config_space = 0;
+
+ /* PCI-X support */
+ if (subsystem_deviceid & 0x0080) {
+ ctrl->pcix_support = 1;
+ if (subsystem_deviceid & 0x0040)
+ /* 133MHz PCI-X if bit 7 is 1 */
+ ctrl->pcix_speed_capability = 1;
+ else
+ /* 100MHz PCI-X if bit 7 is 1 and bit 0 is 0, */
+ /* 66MHz PCI-X if bit 7 is 1 and bit 0 is 1 */
+ ctrl->pcix_speed_capability = 0;
+ } else {
+ /* Conventional PCI */
+ ctrl->pcix_support = 0;
+ ctrl->pcix_speed_capability = 0;
+ }
+ break;
+
+ default:
+ err(msg_HPC_not_supported);
+ rc = -ENODEV;
+ goto err_free_ctrl;
+ }
+
+ /* Tell the user that we found one. */
info("Initializing the PCI hot plug controller residing on PCI bus %d\n",
pdev->bus->number);
memcpy(ctrl->pci_bus, pdev->bus, sizeof(*ctrl->pci_bus));
ctrl->bus = pdev->bus->number;
- ctrl->rev = rev;
+ ctrl->rev = pdev->revision;
dbg("bus device function rev: %d %d %d %d\n", ctrl->bus,
PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn), ctrl->rev);
if (rc) {
goto err_free_bus;
}
-
+
dbg("pdev = %p\n", pdev);
dbg("pci resource start %llx\n", (unsigned long long)pci_resource_start(pdev, 0));
dbg("pci resource len %llx\n", (unsigned long long)pci_resource_len(pdev, 0));
goto err_free_mem_region;
}
- // Check for 66Mhz operation
+ /* Check for 66Mhz operation */
ctrl->speed = get_controller_speed(ctrl);
*
********************************************************/
- // find the physical slot number of the first hot plug slot
+ /* find the physical slot number of the first hot plug slot */
/* Get slot won't work for devices behind bridges, but
* in this case it will always be called for the "base"
goto err_iounmap;
}
- // Store PCI Config Space for all devices on this bus
+ /* Store PCI Config Space for all devices on this bus */
rc = cpqhp_save_config(ctrl, ctrl->bus, readb(ctrl->hpc_reg + SLOT_MASK));
if (rc) {
err("%s: unable to save PCI configuration data, error %d\n",
- __FUNCTION__, rc);
+ __func__, rc);
goto err_iounmap;
}
/*
* Get IO, memory, and IRQ resources for new devices
*/
- // The next line is required for cpqhp_find_available_resources
+ /* The next line is required for cpqhp_find_available_resources */
ctrl->interrupt = pdev->irq;
if (ctrl->interrupt < 0x10) {
cpqhp_legacy_mode = 1;
if (rc) {
err(msg_initialization_err, 6);
err("%s: unable to save PCI configuration data, error %d\n",
- __FUNCTION__, rc);
+ __func__, rc);
goto err_iounmap;
}
-
+
/* Mask all general input interrupts */
writel(0xFFFFFFFFL, ctrl->hpc_reg + INT_MASK);
goto err_iounmap;
}
- /* Enable Shift Out interrupt and clear it, also enable SERR on power fault */
+ /* Enable Shift Out interrupt and clear it, also enable SERR on power
+ * fault
+ */
temp_word = readw(ctrl->hpc_reg + MISC);
temp_word |= 0x4006;
writew(temp_word, ctrl->hpc_reg + MISC);
- // Changed 05/05/97 to clear all interrupts at start
+ /* Changed 05/05/97 to clear all interrupts at start */
writel(0xFFFFFFFFL, ctrl->hpc_reg + INT_INPUT_CLEAR);
ctrl->ctrl_int_comp = readl(ctrl->hpc_reg + INT_INPUT_CLEAR);
cpqhp_ctrl_list = ctrl;
}
- // turn off empty slots here unless command line option "ON" set
- // Wait for exclusive access to hardware
+ /* turn off empty slots here unless command line option "ON" set
+ * Wait for exclusive access to hardware
+ */
mutex_lock(&ctrl->crit_sect);
num_of_slots = readb(ctrl->hpc_reg + SLOT_MASK) & 0x0F;
- // find first device number for the ctrl
+ /* find first device number for the ctrl */
device = readb(ctrl->hpc_reg + SLOT_MASK) >> 4;
while (num_of_slots) {
hp_slot = func->device - ctrl->slot_device_offset;
dbg("hp_slot: %d\n", hp_slot);
- // We have to save the presence info for these slots
+ /* We have to save the presence info for these slots */
temp_word = ctrl->ctrl_int_comp >> 16;
func->presence_save = (temp_word >> hp_slot) & 0x01;
func->presence_save |= (temp_word >> (hp_slot + 7)) & 0x02;
- if (ctrl->ctrl_int_comp & (0x1L << hp_slot)) {
+ if (ctrl->ctrl_int_comp & (0x1L << hp_slot))
func->switch_save = 0;
- } else {
+ else
func->switch_save = 0x10;
- }
- if (!power_mode) {
+ if (!power_mode)
if (!func->is_a_board) {
green_LED_off(ctrl, hp_slot);
slot_disable(ctrl, hp_slot);
}
- }
device++;
num_of_slots--;
if (!power_mode) {
set_SOGO(ctrl);
- // Wait for SOBS to be unset
+ /* Wait for SOBS to be unset */
wait_for_ctrl_irq(ctrl);
}
goto err_free_irq;
}
- // Done with exclusive hardware access
+ /* Done with exclusive hardware access */
mutex_unlock(&ctrl->crit_sect);
cpqhp_create_debugfs_files(ctrl);
return rc;
}
-
-static int one_time_init(void)
-{
- int loop;
- int retval = 0;
-
- if (initialized)
- return 0;
-
- power_mode = 0;
-
- retval = pci_print_IRQ_route();
- if (retval)
- goto error;
-
- dbg("Initialize + Start the notification mechanism \n");
-
- retval = cpqhp_event_start_thread();
- if (retval)
- goto error;
-
- dbg("Initialize slot lists\n");
- for (loop = 0; loop < 256; loop++) {
- cpqhp_slot_list[loop] = NULL;
- }
-
- // FIXME: We also need to hook the NMI handler eventually.
- // this also needs to be worked with Christoph
- // register_NMI_handler();
-
- // Map rom address
- cpqhp_rom_start = ioremap(ROM_PHY_ADDR, ROM_PHY_LEN);
- if (!cpqhp_rom_start) {
- err ("Could not ioremap memory region for ROM\n");
- retval = -EIO;
- goto error;
- }
-
- /* Now, map the int15 entry point if we are on compaq specific hardware */
- compaq_nvram_init(cpqhp_rom_start);
-
- /* Map smbios table entry point structure */
- smbios_table = detect_SMBIOS_pointer(cpqhp_rom_start,
- cpqhp_rom_start + ROM_PHY_LEN);
- if (!smbios_table) {
- err ("Could not find the SMBIOS pointer in memory\n");
- retval = -EIO;
- goto error_rom_start;
- }
-
- smbios_start = ioremap(readl(smbios_table + ST_ADDRESS),
- readw(smbios_table + ST_LENGTH));
- if (!smbios_start) {
- err ("Could not ioremap memory region taken from SMBIOS values\n");
- retval = -EIO;
- goto error_smbios_start;
- }
-
- initialized = 1;
-
- return retval;
-
-error_smbios_start:
- iounmap(smbios_start);
-error_rom_start:
- iounmap(cpqhp_rom_start);
-error:
- return retval;
-}
-
-
static void __exit unload_cpqphpd(void)
{
struct pci_func *next;
if (ctrl->hpc_reg) {
u16 misc;
rc = read_slot_enable (ctrl);
-
+
writeb(0, ctrl->hpc_reg + SLOT_SERR);
writel(0xFFFFFFC0L | ~rc, ctrl->hpc_reg + INT_MASK);
-
+
misc = readw(ctrl->hpc_reg + MISC);
misc &= 0xFFFD;
writew(misc, ctrl->hpc_reg + MISC);
}
}
- // Stop the notification mechanism
+ /* Stop the notification mechanism */
if (initialized)
cpqhp_event_stop_thread();
- //unmap the rom address
+ /* unmap the rom address */
if (cpqhp_rom_start)
iounmap(cpqhp_rom_start);
if (smbios_start)
iounmap(smbios_start);
}
-
-
static struct pci_device_id hpcd_pci_tbl[] = {
{
/* handle any PCI Hotplug controller */
.class = ((PCI_CLASS_SYSTEM_PCI_HOTPLUG << 8) | 0x00),
.class_mask = ~0,
-
+
/* no matter who makes it */
.vendor = PCI_ANY_ID,
.device = PCI_ANY_ID,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
-
+
}, { /* end: all zeroes */ }
};
MODULE_DEVICE_TABLE(pci, hpcd_pci_tbl);
-
-
static struct pci_driver cpqhpc_driver = {
.name = "compaq_pci_hotplug",
.id_table = hpcd_pci_tbl,
/* remove: cpqhpc_remove_one, */
};
-
-
static int __init cpqhpc_init(void)
{
int result;
return result;
}
-
static void __exit cpqhpc_cleanup(void)
{
dbg("unload_cpqphpd()\n");
cpqhp_shutdown_debugfs();
}
-
module_init(cpqhpc_init);
module_exit(cpqhpc_cleanup);
-
-
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff