qcacmn: Remove CDS related functions in HTC

Clean up CDS related functions so that HTC layer can be converged.
Also add compilation flag for runtime PM APIs.

Change-Id: I4c4a06b4387c8cc3f9b41d0191f46d7fa1b0a0b4
CRs-fixed: 982024

htc/htc.c

@@ -25,15 +25,11 @@
  * to the Linux Foundation.
  */
 
-#include "ol_if_athvar.h"
 #include "htc_debug.h"
 #include "htc_internal.h"
 #include <qdf_nbuf.h>           /* qdf_nbuf_t */
 #include <qdf_types.h>          /* qdf_print */
 #include <hif.h>
-#include "epping_main.h"
-#include "cds_concurrency.h"
-#include <cds_api.h>
 
 #ifdef DEBUG
 static ATH_DEBUG_MASK_DESCRIPTION g_htc_debug_description[] = {
@@ -190,8 +186,58 @@ static void htc_cleanup(HTC_TARGET *target)
 	qdf_mem_free(target);
 }
 
+#ifdef FEATURE_RUNTIME_PM
+/**
+ * htc_runtime_pm_init(): runtime pm related intialization
+ *
+ * need to initialize a work item.
+ */
+static void htc_runtime_pm_init(HTC_TARGET *target)
+{
+	qdf_create_work(0, &target->queue_kicker, htc_kick_queues, target);
+}
+
+/**
+ * htc_runtime_suspend() - runtime suspend HTC
+ *
+ * @htc_ctx: HTC context pointer
+ *
+ * This is a dummy function for symmetry.
+ *
+ * Return: 0 for success
+ */
+int htc_runtime_suspend(HTC_HANDLE htc_ctx)
+{
+	return 0;
+}
+
+/**
+ * htc_runtime_resume(): resume htc
+ *
+ * The htc message queue needs to be kicked off after
+ * a runtime resume.  Otherwise messages would get stuck.
+ *
+ * @htc_ctx: HTC context pointer
+ *
+ * Return: 0 for success;
+ */
+int htc_runtime_resume(HTC_HANDLE htc_ctx)
+{
+	HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(htc_ctx);
+
+	if (target == NULL)
+		return 0;
+
+	qdf_sched_work(0, &target->queue_kicker);
+	return 0;
+}
+#else
+static inline void htc_runtime_pm_init(HTC_TARGET *target) { }
+#endif
+
 /* registered target arrival callback from the HIF layer */
-HTC_HANDLE htc_create(void *ol_sc, HTC_INIT_INFO *pInfo, qdf_device_t osdev)
+HTC_HANDLE htc_create(void *ol_sc, HTC_INIT_INFO *pInfo, qdf_device_t osdev,
+		      uint32_t con_mode)
 {
 	struct hif_msg_callbacks htcCallbacks;
 	HTC_ENDPOINT *pEndpoint = NULL;
@@ -224,6 +270,7 @@ HTC_HANDLE htc_create(void *ol_sc, HTC_INIT_INFO *pInfo, qdf_device_t osdev)
 		A_MEMCPY(&target->HTCInitInfo, pInfo, sizeof(HTC_INIT_INFO));
 		target->host_handle = pInfo->pContext;
 		target->osdev = osdev;
+		target->con_mode = con_mode;
 
 		reset_endpoint_states(target);
 
@@ -337,7 +384,7 @@ A_STATUS htc_setup_target_buffer_assignments(HTC_TARGET *target)
 	pEntry->service_id = WMI_CONTROL_SVC;
 	pEntry->CreditAllocation = credits;
 
-	if (WLAN_IS_EPPING_ENABLED(cds_get_conparam())) {
+	if (HTC_IS_EPPING_ENABLED(target->con_mode)) {
 		/* endpoint ping is a testing tool directly on top of HTC in
 		 * both target and host sides.
 		 * In target side, the endppint ping fw has no wlan stack and the
@@ -682,59 +729,6 @@ void htc_stop(HTC_HANDLE HTCHandle)
 	AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("-htc_stop\n"));
 }
 
-/**
- * htc_runtime_pm_init(): runtime pm related intialization
- *
- * need to initialize a work item.
- */
-void htc_runtime_pm_init(HTC_TARGET *target)
-{
-	qdf_create_work(0, &target->queue_kicker, htc_kick_queues, target);
-}
-
-/**
- * htc_runtime_suspend(): ensure htc is ready to suspend
- *
- * htc is ready to suspend if there are no pending pactets
- * in the txrx queues.
- *
- * Return: 0 on success or -EBUSY if there are queued packets.
- */
-int htc_runtime_suspend(void)
-{
-	ol_txrx_pdev_handle txrx_pdev = cds_get_context(QDF_MODULE_ID_TXRX);
-
-	if (txrx_pdev == NULL) {
-		HTC_ERROR("%s: txrx context null", __func__);
-		return QDF_STATUS_E_FAULT;
-	}
-
-	if (ol_txrx_get_tx_pending(txrx_pdev))
-		return -EBUSY;
-	else
-		return 0;
-}
-
-/**
- * htc_runtime_resume(): resume htc
- *
- * The htc message queue needs to be kicked off after
- * a runtime resume.  Otherwise messages would get stuck.
- *
- * Return: 0 for success;
- */
-int htc_runtime_resume(void)
-{
-	HTC_HANDLE htc_ctx = cds_get_context(QDF_MODULE_ID_HTC);
-	HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(htc_ctx);
-
-	if (target == NULL)
-		return 0;
-
-	qdf_sched_work(0, &target->queue_kicker);
-	return 0;
-}
-
 void htc_dump_credit_states(HTC_HANDLE HTCHandle)
 {
 	HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle);

htc/htc_api.h

@@ -290,16 +290,18 @@ typedef struct _HTC_ENDPOINT_STATS {
 /*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    @desc: Create an instance of HTC over the underlying HIF device
    @function name: htc_create
-   @input:  HifDevice - hif device handle,
-   pInfo - initialization information
+   @input: HifDevice - hif device handle,
+	   pInfo - initialization information
+	   osdev - QDF device structure
+	   con_mode - driver connection mode
    @output:
    @return: HTC_HANDLE on success, NULL on failure
    @notes:
    @example:
    @see also: htc_destroy
  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-HTC_HANDLE htc_create(void *HifDevice,
-		      HTC_INIT_INFO *pInfo, qdf_device_t osdev);
+HTC_HANDLE htc_create(void *HifDevice, HTC_INIT_INFO *pInfo, qdf_device_t osdev,
+		      uint32_t con_mode);
 /*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    @desc: Get the underlying HIF device handle
    @function name: htc_get_hif_device
@@ -702,8 +704,10 @@ do {									\
 void htc_get_control_endpoint_tx_host_credits(HTC_HANDLE HTCHandle, int *credit);
 void htc_dump_counter_info(HTC_HANDLE HTCHandle);
 void *htc_get_targetdef(HTC_HANDLE htc_handle);
-int htc_runtime_suspend(void);
-int htc_runtime_resume(void);
+#ifdef FEATURE_RUNTIME_PM
+int htc_runtime_suspend(HTC_HANDLE htc_ctx);
+int htc_runtime_resume(HTC_HANDLE htc_ctx);
+#endif
 
 /* Disable ASPM : Disable PCIe low power */
 bool htc_can_suspend_link(HTC_HANDLE HTCHandle);

htc/htc_internal.h

@@ -78,6 +78,8 @@ extern "C" {
 
 #define HTC_CREDIT_HISTORY_MAX              1024
 
+#define HTC_IS_EPPING_ENABLED(_x)           ((_x) == QDF_GLOBAL_EPPING_MODE)
+
 typedef enum {
 	HTC_REQUEST_CREDIT,
 	HTC_PROCESS_CREDIT_REPORT,
@@ -183,6 +185,7 @@ typedef struct _HTC_TARGET {
 	A_UINT32 TX_comp_cnt;
 	A_UINT8 MaxMsgsPerHTCBundle;
 	qdf_work_t queue_kicker;
+	uint32_t con_mode;
 } HTC_TARGET;
 
 #define HTC_ENABLE_BUNDLE(target) (target->MaxMsgsPerHTCBundle > 1)
@@ -250,8 +253,9 @@ void htc_process_credit_rpt(HTC_TARGET *target,
 			    int NumEntries, HTC_ENDPOINT_ID FromEndpoint);
 void htc_fw_event_handler(void *context, QDF_STATUS status);
 void htc_send_complete_check_cleanup(void *context);
-void htc_runtime_pm_init(HTC_TARGET *target);
+#ifdef FEATURE_RUNTIME_PM
 void htc_kick_queues(void *context);
+#endif
 
 void htc_credit_record(htc_credit_exchange_type type, uint32_t tx_credit,
 		       uint32_t htc_tx_queue_depth);

htc/htc_recv.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2015 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2013-2016 The Linux Foundation. All rights reserved.
  *
  * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
  *
@@ -27,9 +27,7 @@
 
 #include "htc_debug.h"
 #include "htc_internal.h"
-#include "cds_api.h"
 #include <qdf_nbuf.h>           /* qdf_nbuf_t */
-#include "epping_main.h"
 
 /* HTC Control message receive timeout msec */
 #define HTC_CONTROL_RX_TIMEOUT     3000

htc/htc_send.c

@@ -29,7 +29,6 @@
 #include "htc_internal.h"
 #include <qdf_nbuf.h>           /* qdf_nbuf_t */
 #include <qdf_mem.h>         /* qdf_mem_malloc */
-#include "epping_main.h"
 
 /* #define USB_HIF_SINGLE_PIPE_DATA_SCHED */
 /* #ifdef USB_HIF_SINGLE_PIPE_DATA_SCHED */
@@ -1788,6 +1787,7 @@ void htc_tx_resource_avail_handler(void *context, A_UINT8 pipeID)
 	htc_try_send(target, pEndpoint, NULL);
 }
 
+#ifdef FEATURE_RUNTIME_PM
 /**
  * htc_kick_queues(): resumes tx transactions of suspended endpoints
  * @context: pointer to the htc target context
@@ -1816,6 +1816,7 @@ void htc_kick_queues(void *context)
 		htc_try_send(target, endpoint, NULL);
 	}
 }
+#endif
 
 /* flush endpoint TX queue */
 void htc_flush_endpoint_tx(HTC_TARGET *target, HTC_ENDPOINT *pEndpoint,