diff options
Diffstat (limited to 'drivers/staging/bcm/InterfaceIdleMode.c')
| -rw-r--r-- | drivers/staging/bcm/InterfaceIdleMode.c | 318 |
1 files changed, 318 insertions, 0 deletions
diff --git a/drivers/staging/bcm/InterfaceIdleMode.c b/drivers/staging/bcm/InterfaceIdleMode.c new file mode 100644 index 0000000..0750382 --- /dev/null +++ b/drivers/staging/bcm/InterfaceIdleMode.c @@ -0,0 +1,318 @@ +#include "headers.h" + +/* +Function: InterfaceIdleModeWakeup + +Description: This is the hardware specific Function for waking up HW device from Idle mode. + A software abort pattern is written to the device to wake it and necessary power state + transitions from host are performed here. + +Input parameters: IN PMINI_ADAPTER Adapter - Miniport Adapter Context + + +Return: BCM_STATUS_SUCCESS - If Wakeup of the HW Interface was successful. + Other - If an error occured. +*/ + + +/* +Function: InterfaceIdleModeRespond + +Description: This is the hardware specific Function for responding to Idle mode request from target. + Necessary power state transitions from host for idle mode or other device specific + initializations are performed here. + +Input parameters: IN PMINI_ADAPTER Adapter - Miniport Adapter Context + + +Return: BCM_STATUS_SUCCESS - If Idle mode response related HW configuration was successful. + Other - If an error occured. +*/ + +/* +"dmem bfc02f00 100" tells how many time device went in Idle mode. +this value will be at address bfc02fa4.just before value d0ea1dle. + +Set time value by writing at bfc02f98 7d0 + +checking the Ack timer expire on kannon by running command +d qcslog .. if it shows e means host has not send response to f/w with in 200 ms. Response should be +send to f/w with in 200 ms after the Idle/Shutdown req issued + +*/ + + +int InterfaceIdleModeRespond(PMINI_ADAPTER Adapter, unsigned int* puiBuffer) +{ + int status = STATUS_SUCCESS; + unsigned int uiRegRead = 0; + + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL,"SubType of Message :0x%X", ntohl(*puiBuffer)); + + if(ntohl(*puiBuffer) == GO_TO_IDLE_MODE_PAYLOAD) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL," Got GO_TO_IDLE_MODE_PAYLOAD(210) Msg Subtype"); + if(ntohl(*(puiBuffer+1)) == 0 ) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL,"Got IDLE MODE WAKE UP Response From F/W"); + + status = wrmalt (Adapter,SW_ABORT_IDLEMODE_LOC, &uiRegRead, sizeof(uiRegRead)); + if(status) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0, "wrm failed while clearing Idle Mode Reg"); + return status; + } + + if(Adapter->ulPowerSaveMode == DEVICE_POWERSAVE_MODE_AS_MANUAL_CLOCK_GATING) + { + uiRegRead = 0x00000000 ; + status = wrmalt (Adapter,DEBUG_INTERRUPT_GENERATOR_REGISTOR, &uiRegRead, sizeof(uiRegRead)); + if(status) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0, "wrm failed while clearing Idle Mode Reg"); + return status; + } + } + //Below Register should not br read in case of Manual and Protocol Idle mode. + else if(Adapter->ulPowerSaveMode != DEVICE_POWERSAVE_MODE_AS_PROTOCOL_IDLE_MODE) + { + //clear on read Register + status = rdmalt(Adapter, DEVICE_INT_OUT_EP_REG0, &uiRegRead, sizeof(uiRegRead)); + if(status) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0, "rdm failed while clearing H/W Abort Reg0"); + return status; + } + //clear on read Register + status = rdmalt (Adapter, DEVICE_INT_OUT_EP_REG1, &uiRegRead, sizeof(uiRegRead)); + if(status) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0, "rdm failed while clearing H/W Abort Reg1"); + return status; + } + } + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL, "Device Up from Idle Mode"); + + // Set Idle Mode Flag to False and Clear IdleMode reg. + Adapter->IdleMode = FALSE; + Adapter->bTriedToWakeUpFromlowPowerMode = FALSE; + + wake_up(&Adapter->lowpower_mode_wait_queue); + #if 0 + if(Adapter->LEDInfo.led_thread_running & BCM_LED_THREAD_RUNNING_ACTIVELY) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL,"LED Thread is Running. Hence Setting the LED Event as IDLEMODE_EXIT"); + Adapter->DriverState = IDLEMODE_EXIT; + wake_up(&Adapter->LEDInfo.notify_led_event); + } + #endif + + } + else + { + if(TRUE == Adapter->IdleMode) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL,"Device is already in Idle mode...."); + return status ; + } + + uiRegRead = 0; + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL, "Got Req from F/W to go in IDLE mode \n"); + + if (Adapter->chip_id== BCS220_2 || + Adapter->chip_id == BCS220_2BC || + Adapter->chip_id== BCS250_BC || + Adapter->chip_id== BCS220_3) + { + + status = rdmalt(Adapter, HPM_CONFIG_MSW, &uiRegRead, sizeof(uiRegRead)); + if(status) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL, "rdm failed while Reading HPM_CONFIG_LDO145 Reg 0\n"); + return status; + } + + + uiRegRead |= (1<<17); + + status = wrmalt (Adapter,HPM_CONFIG_MSW, &uiRegRead, sizeof(uiRegRead)); + if(status) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0, "wrm failed while clearing Idle Mode Reg\n"); + return status; + } + + } + SendIdleModeResponse(Adapter); + } + } + else if(ntohl(*puiBuffer) == IDLE_MODE_SF_UPDATE_MSG) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL, "OverRiding Service Flow Params"); + OverrideServiceFlowParams(Adapter,puiBuffer); + } + return status; +} + + +VOID InterfaceWriteIdleModeWakePattern(PMINI_ADAPTER Adapter) +{ +/* BeceemWriteMemoryUshort(Adapter, Host2CPU_Mailbox_Low, 0x1d1e); + BeceemWriteMemoryUshort(Adapter, Host2CPU_Mailbox_Low, 0x1d1e); + BeceemWriteMemoryUshort(Adapter, Host2CPU_Mailbox_Upp, 0xd0ea); + BeceemWriteMemoryUshort(Adapter, Host2CPU_Mailbox_Upp, 0xd0ea);*/ + return; +} + +int InterfaceAbortIdlemode(PMINI_ADAPTER Adapter, unsigned int Pattern) +{ + int status = STATUS_SUCCESS; + unsigned int value; + unsigned int chip_id ; + unsigned long timeout = 0 ,itr = 0; + + int lenwritten = 0; + unsigned char aucAbortPattern[8]={0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF}; + PS_INTERFACE_ADAPTER psInterfaceAdapter = Adapter->pvInterfaceAdapter; + + //Abort Bus suspend if its already suspended + if((TRUE == psInterfaceAdapter->bSuspended) && (TRUE == Adapter->bDoSuspend)) + { + status = usb_autopm_get_interface(psInterfaceAdapter->interface); + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL,"Bus got wakeup..Aborting Idle mode... status:%d \n",status); + + } + + if((Adapter->ulPowerSaveMode == DEVICE_POWERSAVE_MODE_AS_MANUAL_CLOCK_GATING) + || + (Adapter->ulPowerSaveMode == DEVICE_POWERSAVE_MODE_AS_PROTOCOL_IDLE_MODE)) + { + //write the SW abort pattern. + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL, "Writing pattern<%d> to SW_ABORT_IDLEMODE_LOC\n", Pattern); + status = wrmalt(Adapter,SW_ABORT_IDLEMODE_LOC, &Pattern, sizeof(Pattern)); + if(status) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL,"WRM to Register SW_ABORT_IDLEMODE_LOC failed.."); + return status; + } + } + + if(Adapter->ulPowerSaveMode == DEVICE_POWERSAVE_MODE_AS_MANUAL_CLOCK_GATING) + { + value = 0x80000000; + status = wrmalt(Adapter,DEBUG_INTERRUPT_GENERATOR_REGISTOR, &value, sizeof(value)); + if(status) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL,"WRM to DEBUG_INTERRUPT_GENERATOR_REGISTOR Register failed"); + return status; + } + } + else if(Adapter->ulPowerSaveMode != DEVICE_POWERSAVE_MODE_AS_PROTOCOL_IDLE_MODE) + { + /* + * Get a Interrupt Out URB and send 8 Bytes Down + * To be Done in Thread Context. + * Not using Asynchronous Mechanism. + */ + status = usb_interrupt_msg (psInterfaceAdapter->udev, + usb_sndintpipe(psInterfaceAdapter->udev, + psInterfaceAdapter->sIntrOut.int_out_endpointAddr), + aucAbortPattern, + 8, + &lenwritten, + 5000); + if(status) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL, "Sending Abort pattern down fails with status:%d..\n",status); + return status; + } + else + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL, "NOB Sent down :%d", lenwritten); + } + + //mdelay(25); + + timeout= jiffies + msecs_to_jiffies(50) ; + while( timeout > jiffies ) + { + itr++ ; + rdmalt(Adapter, CHIP_ID_REG, &chip_id, sizeof(UINT)); + if(0xbece3200==(chip_id&~(0xF0))) + { + chip_id = chip_id&~(0xF0); + } + if(chip_id == Adapter->chip_id) + break; + } + if(timeout < jiffies ) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL,"Not able to read chip-id even after 25 msec"); + } + else + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL,"Number of completed iteration to read chip-id :%lu", itr); + } + + status = wrmalt(Adapter,SW_ABORT_IDLEMODE_LOC, &Pattern, sizeof(status)); + if(status) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"WRM to Register SW_ABORT_IDLEMODE_LOC failed.."); + return status; + } + } + return status; +} +int InterfaceIdleModeWakeup(PMINI_ADAPTER Adapter) +{ + ULONG Status = 0; + if(Adapter->bTriedToWakeUpFromlowPowerMode) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL, "Wake up already attempted.. ignoring\n"); + } + else + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL,"Writing Low Power Mode Abort pattern to the Device\n"); + Adapter->bTriedToWakeUpFromlowPowerMode = TRUE; + InterfaceAbortIdlemode(Adapter, Adapter->usIdleModePattern); + + } + return Status; +} + +void InterfaceHandleShutdownModeWakeup(PMINI_ADAPTER Adapter) +{ + unsigned int uiRegVal = 0; + INT Status = 0; + if(Adapter->ulPowerSaveMode == DEVICE_POWERSAVE_MODE_AS_MANUAL_CLOCK_GATING) + { + // clear idlemode interrupt. + uiRegVal = 0; + Status =wrmalt(Adapter,DEBUG_INTERRUPT_GENERATOR_REGISTOR, &uiRegVal, sizeof(uiRegVal)); + if(Status) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"WRM to DEBUG_INTERRUPT_GENERATOR_REGISTOR Failed with err :%d", Status); + return; + } + } + + else + { + + //clear Interrupt EP registers. + Status = rdmalt(Adapter,DEVICE_INT_OUT_EP_REG0, &uiRegVal, sizeof(uiRegVal)); + if(Status) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"RDM of DEVICE_INT_OUT_EP_REG0 failed with Err :%d", Status); + return; + } + + Status = rdmalt(Adapter,DEVICE_INT_OUT_EP_REG1, &uiRegVal, sizeof(uiRegVal)); + if(Status) + { + BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"RDM of DEVICE_INT_OUT_EP_REG1 failed with Err :%d", Status); + return; + } + } +} + |
