#include "shpchp.h"
-#ifdef DEBUG
-#define DBG_K_TRACE_ENTRY ((unsigned int)0x00000001) /* On function entry */
-#define DBG_K_TRACE_EXIT ((unsigned int)0x00000002) /* On function exit */
-#define DBG_K_INFO ((unsigned int)0x00000004) /* Info messages */
-#define DBG_K_ERROR ((unsigned int)0x00000008) /* Error messages */
-#define DBG_K_TRACE (DBG_K_TRACE_ENTRY|DBG_K_TRACE_EXIT)
-#define DBG_K_STANDARD (DBG_K_INFO|DBG_K_ERROR|DBG_K_TRACE)
-/* Redefine this flagword to set debug level */
-#define DEBUG_LEVEL DBG_K_STANDARD
-
-#define DEFINE_DBG_BUFFER char __dbg_str_buf[256];
-
-#define DBG_PRINT( dbg_flags, args... ) \
- do { \
- if ( DEBUG_LEVEL & ( dbg_flags ) ) \
- { \
- int len; \
- len = sprintf( __dbg_str_buf, "%s:%d: %s: ", \
- __FILE__, __LINE__, __FUNCTION__ ); \
- sprintf( __dbg_str_buf + len, args ); \
- printk( KERN_NOTICE "%s\n", __dbg_str_buf ); \
- } \
- } while (0)
-
-#define DBG_ENTER_ROUTINE DBG_PRINT (DBG_K_TRACE_ENTRY, "%s", "[Entry]");
-#define DBG_LEAVE_ROUTINE DBG_PRINT (DBG_K_TRACE_EXIT, "%s", "[Exit]");
-#else
-#define DEFINE_DBG_BUFFER
-#define DBG_ENTER_ROUTINE
-#define DBG_LEAVE_ROUTINE
-#endif /* DEBUG */
-
/* Slot Available Register I field definition */
#define SLOT_33MHZ 0x0000001f
#define SLOT_66MHZ_PCIX 0x00001f00
#define SLOT_EVENT_LATCH 0x2
#define SLOT_SERR_INT_MASK 0x3
-DEFINE_DBG_BUFFER /* Debug string buffer for entire HPC defined here */
static atomic_t shpchp_num_controllers = ATOMIC_INIT(0);
static irqreturn_t shpc_isr(int irq, void *dev_id);
{
struct controller *ctrl = (struct controller *)data;
- DBG_ENTER_ROUTINE
-
/* Poll for interrupt events. regs == NULL => polling */
shpc_isr(0, ctrl);
shpchp_poll_time = 2; /* default polling interval is 2 sec */
start_int_poll_timer(ctrl, shpchp_poll_time);
-
- DBG_LEAVE_ROUTINE
}
/*
int retval = 0;
u16 temp_word;
- DBG_ENTER_ROUTINE
-
mutex_lock(&slot->ctrl->cmd_lock);
if (!shpc_poll_ctrl_busy(ctrl)) {
}
out:
mutex_unlock(&slot->ctrl->cmd_lock);
-
- DBG_LEAVE_ROUTINE
return retval;
}
static int hpc_check_cmd_status(struct controller *ctrl)
{
- u16 cmd_status;
int retval = 0;
-
- DBG_ENTER_ROUTINE
-
- cmd_status = shpc_readw(ctrl, CMD_STATUS) & 0x000F;
+ u16 cmd_status = shpc_readw(ctrl, CMD_STATUS) & 0x000F;
switch (cmd_status >> 1) {
case 0:
retval = cmd_status;
}
- DBG_LEAVE_ROUTINE
return retval;
}
static int hpc_get_attention_status(struct slot *slot, u8 *status)
{
struct controller *ctrl = slot->ctrl;
- u32 slot_reg;
- u8 state;
-
- DBG_ENTER_ROUTINE
-
- slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
- state = (slot_reg & ATN_LED_STATE_MASK) >> ATN_LED_STATE_SHIFT;
+ u32 slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
+ u8 state = (slot_reg & ATN_LED_STATE_MASK) >> ATN_LED_STATE_SHIFT;
switch (state) {
case ATN_LED_STATE_ON:
break;
}
- DBG_LEAVE_ROUTINE
return 0;
}
static int hpc_get_power_status(struct slot * slot, u8 *status)
{
struct controller *ctrl = slot->ctrl;
- u32 slot_reg;
- u8 state;
-
- DBG_ENTER_ROUTINE
-
- slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
- state = (slot_reg & SLOT_STATE_MASK) >> SLOT_STATE_SHIFT;
+ u32 slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
+ u8 state = (slot_reg & SLOT_STATE_MASK) >> SLOT_STATE_SHIFT;
switch (state) {
case SLOT_STATE_PWRONLY:
break;
}
- DBG_LEAVE_ROUTINE
return 0;
}
static int hpc_get_latch_status(struct slot *slot, u8 *status)
{
struct controller *ctrl = slot->ctrl;
- u32 slot_reg;
-
- DBG_ENTER_ROUTINE
+ u32 slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
- slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
*status = !!(slot_reg & MRL_SENSOR); /* 0 -> close; 1 -> open */
- DBG_LEAVE_ROUTINE
return 0;
}
static int hpc_get_adapter_status(struct slot *slot, u8 *status)
{
struct controller *ctrl = slot->ctrl;
- u32 slot_reg;
- u8 state;
-
- DBG_ENTER_ROUTINE
+ u32 slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
+ u8 state = (slot_reg & PRSNT_MASK) >> PRSNT_SHIFT;
- slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
- state = (slot_reg & PRSNT_MASK) >> PRSNT_SHIFT;
*status = (state != 0x3) ? 1 : 0;
- DBG_LEAVE_ROUTINE
return 0;
}
{
struct controller *ctrl = slot->ctrl;
- DBG_ENTER_ROUTINE
-
*prog_int = shpc_readb(ctrl, PROG_INTERFACE);
- DBG_LEAVE_ROUTINE
return 0;
}
u8 m66_cap = !!(slot_reg & MHZ66_CAP);
u8 pi, pcix_cap;
- DBG_ENTER_ROUTINE
-
if ((retval = hpc_get_prog_int(slot, &pi)))
return retval;
}
dbg("Adapter speed = %d\n", *value);
- DBG_LEAVE_ROUTINE
return retval;
}
static int hpc_get_mode1_ECC_cap(struct slot *slot, u8 *mode)
{
- struct controller *ctrl = slot->ctrl;
- u16 sec_bus_status;
- u8 pi;
int retval = 0;
-
- DBG_ENTER_ROUTINE
-
- pi = shpc_readb(ctrl, PROG_INTERFACE);
- sec_bus_status = shpc_readw(ctrl, SEC_BUS_CONFIG);
+ struct controller *ctrl = slot->ctrl;
+ u16 sec_bus_status = shpc_readw(ctrl, SEC_BUS_CONFIG);
+ u8 pi = shpc_readb(ctrl, PROG_INTERFACE);
if (pi == 2) {
*mode = (sec_bus_status & 0x0100) >> 8;
}
dbg("Mode 1 ECC cap = %d\n", *mode);
-
- DBG_LEAVE_ROUTINE
return retval;
}
static int hpc_query_power_fault(struct slot * slot)
{
struct controller *ctrl = slot->ctrl;
- u32 slot_reg;
-
- DBG_ENTER_ROUTINE
-
- slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
+ u32 slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
- DBG_LEAVE_ROUTINE
/* Note: Logic 0 => fault */
return !(slot_reg & POWER_FAULT);
}
int i;
u32 slot_reg, serr_int;
- DBG_ENTER_ROUTINE
-
/*
* Mask event interrupts and SERRs of all slots
*/
*/
if (atomic_dec_and_test(&shpchp_num_controllers))
destroy_workqueue(shpchp_wq);
-
- DBG_LEAVE_ROUTINE
}
static int hpc_power_on_slot(struct slot * slot)
{
int retval;
- DBG_ENTER_ROUTINE
-
retval = shpc_write_cmd(slot, slot->hp_slot, SET_SLOT_PWR);
- if (retval) {
+ if (retval)
err("%s: Write command failed!\n", __FUNCTION__);
- return retval;
- }
-
- DBG_LEAVE_ROUTINE
- return 0;
+ return retval;
}
static int hpc_slot_enable(struct slot * slot)
{
int retval;
- DBG_ENTER_ROUTINE
-
/* Slot - Enable, Power Indicator - Blink, Attention Indicator - Off */
retval = shpc_write_cmd(slot, slot->hp_slot,
SET_SLOT_ENABLE | SET_PWR_BLINK | SET_ATTN_OFF);
- if (retval) {
+ if (retval)
err("%s: Write command failed!\n", __FUNCTION__);
- return retval;
- }
- DBG_LEAVE_ROUTINE
- return 0;
+ return retval;
}
static int hpc_slot_disable(struct slot * slot)
{
int retval;
- DBG_ENTER_ROUTINE
-
/* Slot - Disable, Power Indicator - Off, Attention Indicator - On */
retval = shpc_write_cmd(slot, slot->hp_slot,
SET_SLOT_DISABLE | SET_PWR_OFF | SET_ATTN_ON);
- if (retval) {
+ if (retval)
err("%s: Write command failed!\n", __FUNCTION__);
- return retval;
- }
- DBG_LEAVE_ROUTINE
- return 0;
+ return retval;
}
static int hpc_set_bus_speed_mode(struct slot * slot, enum pci_bus_speed value)
struct controller *ctrl = slot->ctrl;
u8 pi, cmd;
- DBG_ENTER_ROUTINE
-
pi = shpc_readb(ctrl, PROG_INTERFACE);
if ((pi == 1) && (value > PCI_SPEED_133MHz_PCIX))
return -EINVAL;
if (retval)
err("%s: Write command failed!\n", __FUNCTION__);
- DBG_LEAVE_ROUTINE
return retval;
}
u32 slot_avail1 = shpc_readl(ctrl, SLOT_AVAIL1);
u32 slot_avail2 = shpc_readl(ctrl, SLOT_AVAIL2);
- DBG_ENTER_ROUTINE
-
if (pi == 2) {
if (slot_avail2 & SLOT_133MHZ_PCIX_533)
bus_speed = PCI_SPEED_133MHz_PCIX_533;
*value = bus_speed;
dbg("Max bus speed = %d\n", bus_speed);
- DBG_LEAVE_ROUTINE
+
return retval;
}
u8 pi = shpc_readb(ctrl, PROG_INTERFACE);
u8 speed_mode = (pi == 2) ? (sec_bus_reg & 0xF) : (sec_bus_reg & 0x7);
- DBG_ENTER_ROUTINE
-
if ((pi == 1) && (speed_mode > 4)) {
*value = PCI_SPEED_UNKNOWN;
return -ENODEV;
}
dbg("Current bus speed = %d\n", bus_speed);
- DBG_LEAVE_ROUTINE
return retval;
}
u32 tempdword, slot_reg, slot_config;
u8 i;
- DBG_ENTER_ROUTINE
-
ctrl->pci_dev = pdev; /* pci_dev of the P2P bridge */
if ((pdev->vendor == PCI_VENDOR_ID_AMD) || (pdev->device ==
dbg("%s: SERR_INTR_ENABLE = %x\n", __FUNCTION__, tempdword);
}
- DBG_LEAVE_ROUTINE
return 0;
/* We end up here for the many possible ways to fail this API. */
abort_iounmap:
iounmap(ctrl->creg);
abort:
- DBG_LEAVE_ROUTINE
return rc;
}