diff options
Diffstat (limited to 'drivers/staging/ath6kl/miscdrv/ar3kconfig.c')
| -rw-r--r-- | drivers/staging/ath6kl/miscdrv/ar3kconfig.c | 566 |
1 files changed, 566 insertions, 0 deletions
diff --git a/drivers/staging/ath6kl/miscdrv/ar3kconfig.c b/drivers/staging/ath6kl/miscdrv/ar3kconfig.c new file mode 100644 index 0000000..83bc5be --- /dev/null +++ b/drivers/staging/ath6kl/miscdrv/ar3kconfig.c @@ -0,0 +1,566 @@ +//------------------------------------------------------------------------------ +// Copyright (c) 2009-2010 Atheros Corporation. All rights reserved. +// +// +// Permission to use, copy, modify, and/or distribute this software for any +// purpose with or without fee is hereby granted, provided that the above +// copyright notice and this permission notice appear in all copies. +// +// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +// +// +//------------------------------------------------------------------------------ +//============================================================================== +// AR3K configuration implementation +// +// Author(s): ="Atheros" +//============================================================================== + +#include "a_config.h" +#include "athdefs.h" +#include "a_types.h" +#include "a_osapi.h" +#define ATH_MODULE_NAME misc +#include "a_debug.h" +#include "common_drv.h" +#ifdef EXPORT_HCI_BRIDGE_INTERFACE +#include "export_hci_transport.h" +#else +#include "hci_transport_api.h" +#endif +#include "ar3kconfig.h" +#include "tlpm.h" + +#define BAUD_CHANGE_COMMAND_STATUS_OFFSET 5 +#define HCI_EVENT_RESP_TIMEOUTMS 3000 +#define HCI_CMD_OPCODE_BYTE_LOW_OFFSET 0 +#define HCI_CMD_OPCODE_BYTE_HI_OFFSET 1 +#define HCI_EVENT_OPCODE_BYTE_LOW 3 +#define HCI_EVENT_OPCODE_BYTE_HI 4 +#define HCI_CMD_COMPLETE_EVENT_CODE 0xE +#define HCI_MAX_EVT_RECV_LENGTH 257 +#define EXIT_MIN_BOOT_COMMAND_STATUS_OFFSET 5 + +A_STATUS AthPSInitialize(AR3K_CONFIG_INFO *hdev); + +static A_STATUS SendHCICommand(AR3K_CONFIG_INFO *pConfig, + A_UINT8 *pBuffer, + int Length) +{ + HTC_PACKET *pPacket = NULL; + A_STATUS status = A_OK; + + do { + + pPacket = (HTC_PACKET *)A_MALLOC(sizeof(HTC_PACKET)); + if (NULL == pPacket) { + status = A_NO_MEMORY; + break; + } + + A_MEMZERO(pPacket,sizeof(HTC_PACKET)); + SET_HTC_PACKET_INFO_TX(pPacket, + NULL, + pBuffer, + Length, + HCI_COMMAND_TYPE, + AR6K_CONTROL_PKT_TAG); + + /* issue synchronously */ + status = HCI_TransportSendPkt(pConfig->pHCIDev,pPacket,TRUE); + + } while (FALSE); + + if (pPacket != NULL) { + A_FREE(pPacket); + } + + return status; +} + +static A_STATUS RecvHCIEvent(AR3K_CONFIG_INFO *pConfig, + A_UINT8 *pBuffer, + int *pLength) +{ + A_STATUS status = A_OK; + HTC_PACKET *pRecvPacket = NULL; + + do { + + pRecvPacket = (HTC_PACKET *)A_MALLOC(sizeof(HTC_PACKET)); + if (NULL == pRecvPacket) { + status = A_NO_MEMORY; + AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Failed to alloc HTC struct \n")); + break; + } + + A_MEMZERO(pRecvPacket,sizeof(HTC_PACKET)); + + SET_HTC_PACKET_INFO_RX_REFILL(pRecvPacket,NULL,pBuffer,*pLength,HCI_EVENT_TYPE); + + status = HCI_TransportRecvHCIEventSync(pConfig->pHCIDev, + pRecvPacket, + HCI_EVENT_RESP_TIMEOUTMS); + if (A_FAILED(status)) { + break; + } + + *pLength = pRecvPacket->ActualLength; + + } while (FALSE); + + if (pRecvPacket != NULL) { + A_FREE(pRecvPacket); + } + + return status; +} + +A_STATUS SendHCICommandWaitCommandComplete(AR3K_CONFIG_INFO *pConfig, + A_UINT8 *pHCICommand, + int CmdLength, + A_UINT8 **ppEventBuffer, + A_UINT8 **ppBufferToFree) +{ + A_STATUS status = A_OK; + A_UINT8 *pBuffer = NULL; + A_UINT8 *pTemp; + int length; + A_BOOL commandComplete = FALSE; + A_UINT8 opCodeBytes[2]; + + do { + + length = max(HCI_MAX_EVT_RECV_LENGTH,CmdLength); + length += pConfig->pHCIProps->HeadRoom + pConfig->pHCIProps->TailRoom; + length += pConfig->pHCIProps->IOBlockPad; + + pBuffer = (A_UINT8 *)A_MALLOC(length); + if (NULL == pBuffer) { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("AR3K Config: Failed to allocate bt buffer \n")); + status = A_NO_MEMORY; + break; + } + + /* get the opcodes to check the command complete event */ + opCodeBytes[0] = pHCICommand[HCI_CMD_OPCODE_BYTE_LOW_OFFSET]; + opCodeBytes[1] = pHCICommand[HCI_CMD_OPCODE_BYTE_HI_OFFSET]; + + /* copy HCI command */ + A_MEMCPY(pBuffer + pConfig->pHCIProps->HeadRoom,pHCICommand,CmdLength); + /* send command */ + status = SendHCICommand(pConfig, + pBuffer + pConfig->pHCIProps->HeadRoom, + CmdLength); + if (A_FAILED(status)) { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("AR3K Config: Failed to send HCI Command (%d) \n", status)); + AR_DEBUG_PRINTBUF(pHCICommand,CmdLength,"HCI Bridge Failed HCI Command"); + break; + } + + /* reuse buffer to capture command complete event */ + A_MEMZERO(pBuffer,length); + status = RecvHCIEvent(pConfig,pBuffer,&length); + if (A_FAILED(status)) { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("AR3K Config: HCI event recv failed \n")); + AR_DEBUG_PRINTBUF(pHCICommand,CmdLength,"HCI Bridge Failed HCI Command"); + break; + } + + pTemp = pBuffer + pConfig->pHCIProps->HeadRoom; + if (pTemp[0] == HCI_CMD_COMPLETE_EVENT_CODE) { + if ((pTemp[HCI_EVENT_OPCODE_BYTE_LOW] == opCodeBytes[0]) && + (pTemp[HCI_EVENT_OPCODE_BYTE_HI] == opCodeBytes[1])) { + commandComplete = TRUE; + } + } + + if (!commandComplete) { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("AR3K Config: Unexpected HCI event : %d \n",pTemp[0])); + AR_DEBUG_PRINTBUF(pTemp,pTemp[1],"Unexpected HCI event"); + status = A_ECOMM; + break; + } + + if (ppEventBuffer != NULL) { + /* caller wants to look at the event */ + *ppEventBuffer = pTemp; + if (ppBufferToFree == NULL) { + status = A_EINVAL; + break; + } + /* caller must free the buffer */ + *ppBufferToFree = pBuffer; + pBuffer = NULL; + } + + } while (FALSE); + + if (pBuffer != NULL) { + A_FREE(pBuffer); + } + + return status; +} + +static A_STATUS AR3KConfigureHCIBaud(AR3K_CONFIG_INFO *pConfig) +{ + A_STATUS status = A_OK; + A_UINT8 hciBaudChangeCommand[] = {0x0c,0xfc,0x2,0,0}; + A_UINT16 baudVal; + A_UINT8 *pEvent = NULL; + A_UINT8 *pBufferToFree = NULL; + + do { + + if (pConfig->Flags & AR3K_CONFIG_FLAG_SET_AR3K_BAUD) { + baudVal = (A_UINT16)(pConfig->AR3KBaudRate / 100); + hciBaudChangeCommand[3] = (A_UINT8)baudVal; + hciBaudChangeCommand[4] = (A_UINT8)(baudVal >> 8); + + status = SendHCICommandWaitCommandComplete(pConfig, + hciBaudChangeCommand, + sizeof(hciBaudChangeCommand), + &pEvent, + &pBufferToFree); + if (A_FAILED(status)) { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("AR3K Config: Baud rate change failed! \n")); + break; + } + + if (pEvent[BAUD_CHANGE_COMMAND_STATUS_OFFSET] != 0) { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR, + ("AR3K Config: Baud change command event status failed: %d \n", + pEvent[BAUD_CHANGE_COMMAND_STATUS_OFFSET])); + status = A_ECOMM; + break; + } + + AR_DEBUG_PRINTF(ATH_DEBUG_ANY, + ("AR3K Config: Baud Changed to %d \n",pConfig->AR3KBaudRate)); + } + + if (pConfig->Flags & AR3K_CONFIG_FLAG_AR3K_BAUD_CHANGE_DELAY) { + /* some versions of AR3K do not switch baud immediately, up to 300MS */ + A_MDELAY(325); + } + + if (pConfig->Flags & AR3K_CONFIG_FLAG_SET_AR6K_SCALE_STEP) { + /* Tell target to change UART baud rate for AR6K */ + status = HCI_TransportSetBaudRate(pConfig->pHCIDev, pConfig->AR3KBaudRate); + + if (A_FAILED(status)) { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR, + ("AR3K Config: failed to set scale and step values: %d \n", status)); + break; + } + + AR_DEBUG_PRINTF(ATH_DEBUG_ANY, + ("AR3K Config: Baud changed to %d for AR6K\n", pConfig->AR3KBaudRate)); + } + + } while (FALSE); + + if (pBufferToFree != NULL) { + A_FREE(pBufferToFree); + } + + return status; +} + +static A_STATUS AR3KExitMinBoot(AR3K_CONFIG_INFO *pConfig) +{ + A_STATUS status; + A_CHAR exitMinBootCmd[] = {0x25,0xFC,0x0c,0x03,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00}; + A_UINT8 *pEvent = NULL; + A_UINT8 *pBufferToFree = NULL; + + status = SendHCICommandWaitCommandComplete(pConfig, + exitMinBootCmd, + sizeof(exitMinBootCmd), + &pEvent, + &pBufferToFree); + + if (A_SUCCESS(status)) { + if (pEvent[EXIT_MIN_BOOT_COMMAND_STATUS_OFFSET] != 0) { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR, + ("AR3K Config: MinBoot exit command event status failed: %d \n", + pEvent[EXIT_MIN_BOOT_COMMAND_STATUS_OFFSET])); + status = A_ECOMM; + } else { + AR_DEBUG_PRINTF(ATH_DEBUG_INFO, + ("AR3K Config: MinBoot Exit Command Complete (Success) \n")); + A_MDELAY(1); + } + } else { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("AR3K Config: MinBoot Exit Failed! \n")); + } + + if (pBufferToFree != NULL) { + A_FREE(pBufferToFree); + } + + return status; +} + +static A_STATUS AR3KConfigureSendHCIReset(AR3K_CONFIG_INFO *pConfig) +{ + A_STATUS status = A_OK; + A_UINT8 hciResetCommand[] = {0x03,0x0c,0x0}; + A_UINT8 *pEvent = NULL; + A_UINT8 *pBufferToFree = NULL; + + status = SendHCICommandWaitCommandComplete( pConfig, + hciResetCommand, + sizeof(hciResetCommand), + &pEvent, + &pBufferToFree ); + + if (A_FAILED(status)) { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("AR3K Config: HCI reset failed! \n")); + } + + if (pBufferToFree != NULL) { + A_FREE(pBufferToFree); + } + + return status; +} + +static A_STATUS AR3KEnableTLPM(AR3K_CONFIG_INFO *pConfig) +{ + A_STATUS status; + /* AR3K vendor specific command for Host Wakeup Config */ + A_CHAR hostWakeupConfig[] = {0x31,0xFC,0x18, + 0x02,0x00,0x00,0x00, + 0x01,0x00,0x00,0x00, + TLPM_DEFAULT_IDLE_TIMEOUT_LSB,TLPM_DEFAULT_IDLE_TIMEOUT_MSB,0x00,0x00, //idle timeout in ms + 0x00,0x00,0x00,0x00, + TLPM_DEFAULT_WAKEUP_TIMEOUT_MS,0x00,0x00,0x00, //wakeup timeout in ms + 0x00,0x00,0x00,0x00}; + /* AR3K vendor specific command for Target Wakeup Config */ + A_CHAR targetWakeupConfig[] = {0x31,0xFC,0x18, + 0x04,0x00,0x00,0x00, + 0x01,0x00,0x00,0x00, + TLPM_DEFAULT_IDLE_TIMEOUT_LSB,TLPM_DEFAULT_IDLE_TIMEOUT_MSB,0x00,0x00, //idle timeout in ms + 0x00,0x00,0x00,0x00, + TLPM_DEFAULT_WAKEUP_TIMEOUT_MS,0x00,0x00,0x00, //wakeup timeout in ms + 0x00,0x00,0x00,0x00}; + /* AR3K vendor specific command for Host Wakeup Enable */ + A_CHAR hostWakeupEnable[] = {0x31,0xFC,0x4, + 0x01,0x00,0x00,0x00}; + /* AR3K vendor specific command for Target Wakeup Enable */ + A_CHAR targetWakeupEnable[] = {0x31,0xFC,0x4, + 0x06,0x00,0x00,0x00}; + /* AR3K vendor specific command for Sleep Enable */ + A_CHAR sleepEnable[] = {0x4,0xFC,0x1, + 0x1}; + A_UINT8 *pEvent = NULL; + A_UINT8 *pBufferToFree = NULL; + + if (0 != pConfig->IdleTimeout) { + A_UINT8 idle_lsb = pConfig->IdleTimeout & 0xFF; + A_UINT8 idle_msb = (pConfig->IdleTimeout & 0xFF00) >> 8; + hostWakeupConfig[11] = targetWakeupConfig[11] = idle_lsb; + hostWakeupConfig[12] = targetWakeupConfig[12] = idle_msb; + } + + if (0 != pConfig->WakeupTimeout) { + hostWakeupConfig[19] = targetWakeupConfig[19] = (pConfig->WakeupTimeout & 0xFF); + } + + status = SendHCICommandWaitCommandComplete(pConfig, + hostWakeupConfig, + sizeof(hostWakeupConfig), + &pEvent, + &pBufferToFree); + if (pBufferToFree != NULL) { + A_FREE(pBufferToFree); + } + if (A_FAILED(status)) { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("HostWakeup Config Failed! \n")); + return status; + } + + pEvent = NULL; + pBufferToFree = NULL; + status = SendHCICommandWaitCommandComplete(pConfig, + targetWakeupConfig, + sizeof(targetWakeupConfig), + &pEvent, + &pBufferToFree); + if (pBufferToFree != NULL) { + A_FREE(pBufferToFree); + } + if (A_FAILED(status)) { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Target Wakeup Config Failed! \n")); + return status; + } + + pEvent = NULL; + pBufferToFree = NULL; + status = SendHCICommandWaitCommandComplete(pConfig, + hostWakeupEnable, + sizeof(hostWakeupEnable), + &pEvent, + &pBufferToFree); + if (pBufferToFree != NULL) { + A_FREE(pBufferToFree); + } + if (A_FAILED(status)) { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("HostWakeup Enable Failed! \n")); + return status; + } + + pEvent = NULL; + pBufferToFree = NULL; + status = SendHCICommandWaitCommandComplete(pConfig, + targetWakeupEnable, + sizeof(targetWakeupEnable), + &pEvent, + &pBufferToFree); + if (pBufferToFree != NULL) { + A_FREE(pBufferToFree); + } + if (A_FAILED(status)) { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Target Wakeup Enable Failed! \n")); + return status; + } + + pEvent = NULL; + pBufferToFree = NULL; + status = SendHCICommandWaitCommandComplete(pConfig, + sleepEnable, + sizeof(sleepEnable), + &pEvent, + &pBufferToFree); + if (pBufferToFree != NULL) { + A_FREE(pBufferToFree); + } + if (A_FAILED(status)) { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Sleep Enable Failed! \n")); + } + + AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("AR3K Config: Enable TLPM Completed (status = %d) \n",status)); + + return status; +} + +A_STATUS AR3KConfigure(AR3K_CONFIG_INFO *pConfig) +{ + A_STATUS status = A_OK; + + AR_DEBUG_PRINTF(ATH_DEBUG_INFO,("AR3K Config: Configuring AR3K ...\n")); + + do { + + if ((pConfig->pHCIDev == NULL) || (pConfig->pHCIProps == NULL) || (pConfig->pHIFDevice == NULL)) { + status = A_EINVAL; + break; + } + + /* disable asynchronous recv while we issue commands and receive events synchronously */ + status = HCI_TransportEnableDisableAsyncRecv(pConfig->pHCIDev,FALSE); + if (A_FAILED(status)) { + break; + } + + if (pConfig->Flags & AR3K_CONFIG_FLAG_FORCE_MINBOOT_EXIT) { + status = AR3KExitMinBoot(pConfig); + if (A_FAILED(status)) { + break; + } + } + + + /* Load patching and PST file if available*/ + if (A_OK != AthPSInitialize(pConfig)) { + AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Patch Download Failed!\n")); + } + + /* Send HCI reset to make PS tags take effect*/ + AR3KConfigureSendHCIReset(pConfig); + + if (pConfig->Flags & + (AR3K_CONFIG_FLAG_SET_AR3K_BAUD | AR3K_CONFIG_FLAG_SET_AR6K_SCALE_STEP)) { + status = AR3KConfigureHCIBaud(pConfig); + if (A_FAILED(status)) { + break; + } + } + + + + if (pConfig->PwrMgmtEnabled) { + /* the delay is required after the previous HCI reset before further + * HCI commands can be issued + */ + A_MDELAY(200); + AR3KEnableTLPM(pConfig); + } + + /* re-enable asynchronous recv */ + status = HCI_TransportEnableDisableAsyncRecv(pConfig->pHCIDev,TRUE); + if (A_FAILED(status)) { + break; + } + + + } while (FALSE); + + + AR_DEBUG_PRINTF(ATH_DEBUG_INFO,("AR3K Config: Configuration Complete (status = %d) \n",status)); + + return status; +} + +A_STATUS AR3KConfigureExit(void *config) +{ + A_STATUS status = A_OK; + AR3K_CONFIG_INFO *pConfig = (AR3K_CONFIG_INFO *)config; + + AR_DEBUG_PRINTF(ATH_DEBUG_INFO,("AR3K Config: Cleaning up AR3K ...\n")); + + do { + + if ((pConfig->pHCIDev == NULL) || (pConfig->pHCIProps == NULL) || (pConfig->pHIFDevice == NULL)) { + status = A_EINVAL; + break; + } + + /* disable asynchronous recv while we issue commands and receive events synchronously */ + status = HCI_TransportEnableDisableAsyncRecv(pConfig->pHCIDev,FALSE); + if (A_FAILED(status)) { + break; + } + + if (pConfig->Flags & + (AR3K_CONFIG_FLAG_SET_AR3K_BAUD | AR3K_CONFIG_FLAG_SET_AR6K_SCALE_STEP)) { + status = AR3KConfigureHCIBaud(pConfig); + if (A_FAILED(status)) { + break; + } + } + + /* re-enable asynchronous recv */ + status = HCI_TransportEnableDisableAsyncRecv(pConfig->pHCIDev,TRUE); + if (A_FAILED(status)) { + break; + } + + + } while (FALSE); + + + AR_DEBUG_PRINTF(ATH_DEBUG_INFO,("AR3K Config: Cleanup Complete (status = %d) \n",status)); + + return status; +} + |
