qcacmn: Add USB bus support (HIF Dispatcher)

Add module specific changes for USB bus support.

Change-Id: If1f7d16a733d5d98cba982e3a5e7936356c57d8a
CRs-Fixed: 1023663

hif/src/dispatcher/dummy.c

@@ -284,3 +284,27 @@ void hif_dummy_display_stats(struct hif_softc *hif_ctx)
  */
 void hif_dummy_clear_stats(struct hif_softc *hif_ctx)
 {}
+/**
+ * hif_dummy_set_bundle_mode() - dummy call
+ * @hif_sc: hif context
+ * @enabled: flag to enable/disable bundling
+ * @rx_bundle_cnt: bundle count to be used for RX
+ *
+ * Return: none
+ */
+void hif_dummy_set_bundle_mode(struct hif_softc *hif_ctx,
+					bool enabled, int rx_bundle_cnt)
+{
+	return;
+}
+
+/**
+ * hif_dummy_bus_reset_resume() - dummy call
+ * @hif_sc: hif context
+ *
+ * Return: int 0 for success, non zero for failure
+ */
+int hif_dummy_bus_reset_resume(struct hif_softc *hif_ctx)
+{
+	return 0;
+}

hif/src/dispatcher/dummy.h

@@ -55,3 +55,7 @@ void hif_dummy_ipa_get_ce_resource(struct hif_softc *hif_sc,
 void hif_dummy_mask_interrupt_call(struct hif_softc *hif_sc);
 void hif_dummy_display_stats(struct hif_softc *hif_ctx);
 void hif_dummy_clear_stats(struct hif_softc *hif_ctx);
+void hif_dummy_set_bundle_mode(struct hif_softc *hif_ctx,
+					bool enabled, int rx_bundle_cnt);
+int hif_dummy_bus_reset_resume(struct hif_softc *hif_ctx);
+

hif/src/dispatcher/multibus.c

@@ -31,6 +31,7 @@
 #include "hif.h"
 #include "hif_main.h"
 #include "multibus.h"
+#include "dummy.h"
 #if defined(HIF_PCI) || defined(HIF_SNOC) || defined(HIF_AHB)
 #include "ce_main.h"
 #endif
@@ -49,12 +50,13 @@ static void hif_intialize_default_ops(struct hif_softc *hif_sc)
 
 	/* must be filled in by hif_bus_open */
 	bus_ops->hif_bus_close = NULL;
-
 	/* dummy implementations */
 	bus_ops->hif_display_stats =
 		&hif_dummy_display_stats;
 	bus_ops->hif_clear_stats =
 		&hif_dummy_clear_stats;
+	bus_ops->hif_set_bundle_mode = hif_dummy_set_bundle_mode;
+	bus_ops->hif_bus_reset_resume = hif_dummy_bus_reset_resume;
 }
 
 #define NUM_OPS (sizeof(struct hif_bus_ops) / sizeof(void *))
@@ -100,6 +102,8 @@ int hif_bus_get_context_size(enum qdf_bus_type bus_type)
 		return hif_snoc_get_context_size();
 	case QDF_BUS_TYPE_SDIO:
 		return hif_sdio_get_context_size();
+	case QDF_BUS_TYPE_USB:
+		return hif_usb_get_context_size();
 	default:
 		return 0;
 	}
@@ -131,6 +135,8 @@ QDF_STATUS hif_bus_open(struct hif_softc *hif_sc,
 		break;
 	case QDF_BUS_TYPE_SDIO:
 		status = hif_initialize_sdio_ops(hif_sc);
+	case QDF_BUS_TYPE_USB:
+		status = hif_initialize_usb_ops(&hif_sc->bus_ops);
 		break;
 	default:
 		status = QDF_STATUS_E_NOSUPPORT;
@@ -347,3 +353,34 @@ void hif_disable_power_management(struct hif_opaque_softc *hif_hdl)
 	hif_sc->bus_ops.hif_disable_power_management(hif_sc);
 }
 
+/**
+ * hif_set_bundle_mode() - enable bundling and set default rx bundle cnt
+ * @scn: pointer to hif_opaque_softc structure
+ * @enabled: flag to enable/disable bundling
+ * @rx_bundle_cnt: bundle count to be used for RX
+ *
+ * Return: none
+ */
+void hif_set_bundle_mode(struct hif_opaque_softc *scn, bool enabled,
+				int rx_bundle_cnt)
+{
+	struct hif_softc *hif_sc = HIF_GET_SOFTC(scn);
+	hif_sc->bus_ops.hif_set_bundle_mode(hif_sc, enabled, rx_bundle_cnt);
+}
+
+/**
+ * hif_bus_reset_resume() - resume the bus after reset
+ * @scn: struct hif_opaque_softc
+ *
+ * This function is called to tell the driver that USB device has been resumed
+ * and it has also been reset. The driver should redo any necessary
+ * initialization. This function resets WLAN SOC.
+ *
+ * Return: int 0 for success, non zero for failure
+ */
+int hif_bus_reset_resume(struct hif_opaque_softc *scn)
+
+{
+	struct hif_softc *hif_sc = HIF_GET_SOFTC(scn);
+	return hif_sc->bus_ops.hif_bus_reset_resume(hif_sc);
+}

hif/src/dispatcher/multibus.h

@@ -74,6 +74,9 @@ struct hif_bus_ops {
 	void (*hif_disable_power_management)(struct hif_softc *hif_ctx);
 	void (*hif_display_stats)(struct hif_softc *hif_ctx);
 	void (*hif_clear_stats)(struct hif_softc *hif_ctx);
+	void (*hif_set_bundle_mode) (struct hif_softc *hif_ctx, bool enabled,
+					int rx_bundle_cnt);
+	int (*hif_bus_reset_resume)(struct hif_softc *hif_ctx);
 };
 
 #ifdef HIF_SNOC
@@ -169,4 +172,23 @@ static inline int hif_sdio_get_context_size(void)
 }
 #endif /* HIF_SDIO */
 
+#ifdef HIF_USB
+QDF_STATUS hif_initialize_usb_ops(struct hif_bus_ops *bus_ops);
+int hif_usb_get_context_size(void);
+#else
+static inline QDF_STATUS hif_initialize_usb_ops(struct hif_bus_ops *bus_ops)
+{
+	HIF_ERROR("%s: not supported", __func__);
+	return QDF_STATUS_E_NOSUPPORT;
+}
+/**
+ * hif_usb_get_context_size() - dummy when usb isn't supported
+ *
+ * Return: 0 as an invalid size to indicate no support
+ */
+static inline int hif_usb_get_context_size(void)
+{
+	return 0;
+}
+#endif /* HIF_USB */
 #endif /* _MULTIBUS_H_ */

hif/src/dispatcher/multibus_usb.c

@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2016 The Linux Foundation. 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.
+ */
+
+#include "hif.h"
+#include "hif_main.h"
+#include "multibus.h"
+#include "usb_api.h"
+#include "hif_io32.h"
+#include "dummy.h"
+#include "if_usb.h"
+
+/**
+ * hif_initialize_usb_ops() - initialize the usb ops
+ * @bus_ops: hif_bus_ops table pointer to initialize
+ *
+ * Return: QDF_STATUS_SUCCESS
+ */
+QDF_STATUS hif_initialize_usb_ops(struct hif_bus_ops *bus_ops)
+{
+	bus_ops->hif_bus_open = &hif_usb_open;
+	bus_ops->hif_bus_close = &hif_usb_close;
+	bus_ops->hif_bus_prevent_linkdown = &hif_dummy_bus_prevent_linkdown;
+	bus_ops->hif_reset_soc = &hif_dummy_reset_soc;
+	bus_ops->hif_bus_suspend = &hif_usb_bus_suspend;
+	bus_ops->hif_bus_resume = &hif_usb_bus_resume;
+	bus_ops->hif_target_sleep_state_adjust =
+			&hif_dummy_target_sleep_state_adjust;
+	bus_ops->hif_disable_isr = &hif_usb_disable_isr;
+	bus_ops->hif_nointrs = &hif_usb_nointrs;
+	bus_ops->hif_enable_bus = &hif_usb_enable_bus;
+	bus_ops->hif_disable_bus = &hif_usb_disable_bus;
+	bus_ops->hif_bus_configure = &hif_usb_bus_configure;
+	bus_ops->hif_get_config_item = &hif_dummy_get_config_item;
+	bus_ops->hif_set_mailbox_swap = &hif_dummy_set_mailbox_swap;
+	bus_ops->hif_claim_device = &hif_dummy_claim_device;
+	bus_ops->hif_shutdown_device = &hif_usb_shutdown_bus_device;
+	bus_ops->hif_stop = &hif_usb_stop_device;
+	bus_ops->hif_bus_pkt_dl_len_set = &hif_dummy_bus_pkt_dl_len_set;
+	bus_ops->hif_cancel_deferred_target_sleep =
+				&hif_dummy_cancel_deferred_target_sleep;
+	bus_ops->hif_irq_disable = &hif_usb_irq_disable;
+	bus_ops->hif_irq_enable = &hif_usb_irq_enable;
+	bus_ops->hif_dump_registers = &hif_dummy_dump_registers;
+	bus_ops->hif_dump_target_memory = &hif_dummy_dump_target_memory;
+	bus_ops->hif_ipa_get_ce_resource = &hif_dummy_ipa_get_ce_resource;
+	bus_ops->hif_enable_power_management =
+			&hif_dummy_enable_power_management;
+	bus_ops->hif_disable_power_management =
+			&hif_dummy_disable_power_management;
+	bus_ops->hif_set_bundle_mode = hif_usb_set_bundle_mode;
+	bus_ops->hif_bus_reset_resume = hif_usb_bus_reset_resume;
+
+	return QDF_STATUS_SUCCESS;
+}
+
+/**
+ * hif_usb_get_context_size() - return the size of the usb context
+ *
+ * Return the size of the context.  (0 for invalid bus)
+ */
+int hif_usb_get_context_size(void)
+{
+	return sizeof(struct hif_usb_softc);
+}

hif/src/dispatcher/pci_api.h

@@ -24,7 +24,8 @@
  * under proprietary terms before Copyright ownership was assigned
  * to the Linux Foundation.
  */
-
+#ifndef _PCI_API_H_
+#define _PCI_API_H_
 QDF_STATUS hif_pci_open(struct hif_softc *hif_ctx,
 			enum qdf_bus_type bus_type);
 void hif_pci_close(struct hif_softc *hif_ctx);
@@ -51,3 +52,4 @@ void hif_pci_enable_power_management(struct hif_softc *hif_ctx,
 void hif_pci_disable_power_management(struct hif_softc *hif_ctx);
 void hif_pci_display_stats(struct hif_softc *hif_ctx);
 void hif_pci_clear_stats(struct hif_softc *hif_ctx);
+#endif /* _PCI_API_H_ */

hif/src/dispatcher/snoc_api.h

@@ -25,6 +25,8 @@
  * to the Linux Foundation.
  */
 
+#ifndef _SNOC_API_H_
+#define _SNOC_API_H_
 QDF_STATUS hif_snoc_open(struct hif_softc *hif_ctx,
 			 enum qdf_bus_type bus_type);
 void hif_snoc_close(struct hif_softc *hif_ctx);
@@ -43,3 +45,4 @@ void hif_snoc_irq_enable(struct hif_softc *scn, int ce_id);
 int hif_snoc_dump_registers(struct hif_softc *scn);
 void hif_snoc_display_stats(struct hif_softc *hif_ctx);
 void hif_snoc_clear_stats(struct hif_softc *hif_ctx);
+#endif /* _SNOC_API_H_ */

hif/src/dispatcher/usb_api.h

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2016 The Linux Foundation. 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.
+ */
+#ifndef _USB_API_H_
+#define _USB_API_H_
+
+QDF_STATUS hif_usb_open(struct hif_softc *hif_ctx,
+			 enum qdf_bus_type bus_type);
+void hif_usb_close(struct hif_softc *hif_ctx);
+
+
+void hif_usb_disable_isr(struct hif_softc *hif_ctx);
+void hif_usb_nointrs(struct hif_softc *scn);
+QDF_STATUS hif_usb_enable_bus(struct hif_softc *ol_sc,
+			  struct device *dev, void *bdev,
+			  const hif_bus_id *bid,
+			  enum hif_enable_type type);
+void hif_usb_disable_bus(struct hif_softc *scn);
+int hif_usb_bus_configure(struct hif_softc *scn);
+void hif_usb_irq_disable(struct hif_softc *scn, int ce_id);
+void hif_usb_irq_enable(struct hif_softc *scn, int ce_id);
+int hif_usb_dump_registers(struct hif_softc *scn);
+int hif_usb_bus_suspend(struct hif_softc *hif_ctx);
+int hif_usb_bus_resume(struct hif_softc *hif_ctx);
+void hif_usb_stop_device(struct hif_softc *hif_sc);
+void hif_usb_shutdown_bus_device(struct hif_softc *scn);
+int hif_usb_bus_reset_resume(struct hif_softc *hif_ctx);
+void hif_usb_set_bundle_mode(struct hif_opaque_softc *scn,
+					bool enabled, int rx_bundle_cnt);
+#endif /*_USB_API_H_*/