ALSA: asihpi: Simplify driver unload cleanup

Replacing subsys_delete_adapter with adapter_delete
allows some special-case adapter lookup code to be removed.

Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 49 insertions, 48 deletions

diff --git a/sound/pci/asihpi/hpi6205.c b/sound/pci/asihpi/hpi6205.c
index 620525bdac5..53037342cd2 100644
--- a/sound/pci/asihpi/hpi6205.c
+++ b/sound/pci/asihpi/hpi6205.c
@@ -152,8 +152,8 @@ static void hw_message(struct hpi_adapter_obj *pao, struct hpi_message *phm,
 
 static void subsys_create_adapter(struct hpi_message *phm,
 	struct hpi_response *phr);
-static void subsys_delete_adapter(struct hpi_message *phm,
-	struct hpi_response *phr);
+static void adapter_delete(struct hpi_adapter_obj *pao,
+	struct hpi_message *phm, struct hpi_response *phr);
 
 static u16 create_adapter_obj(struct hpi_adapter_obj *pao,
 	u32 *pos_error_code);
@@ -223,15 +223,13 @@ static u16 boot_loader_test_pld(struct hpi_adapter_obj *pao, int dsp_index);
 
 /*****************************************************************************/
 
-static void subsys_message(struct hpi_message *phm, struct hpi_response *phr)
+static void subsys_message(struct hpi_adapter_obj *pao,
+	struct hpi_message *phm, struct hpi_response *phr)
 {
 	switch (phm->function) {
 	case HPI_SUBSYS_CREATE_ADAPTER:
 		subsys_create_adapter(phm, phr);
 		break;
-	case HPI_SUBSYS_DELETE_ADAPTER:
-		subsys_delete_adapter(phm, phr);
-		break;
 	default:
 		phr->error = HPI_ERROR_INVALID_FUNC;
 		break;
@@ -279,6 +277,10 @@ static void adapter_message(struct hpi_adapter_obj *pao,
 	struct hpi_message *phm, struct hpi_response *phr)
 {
 	switch (phm->function) {
+	case HPI_ADAPTER_DELETE:
+		adapter_delete(pao, phm, phr);
+		break;
+
 	default:
 		hw_message(pao, phm, phr);
 		break;
@@ -371,36 +373,17 @@ static void instream_message(struct hpi_adapter_obj *pao,
 /** Entry point to this HPI backend
  * All calls to the HPI start here
  */
-void HPI_6205(struct hpi_message *phm, struct hpi_response *phr)
+void _HPI_6205(struct hpi_adapter_obj *pao, struct hpi_message *phm,
+	struct hpi_response *phr)
 {
-	struct hpi_adapter_obj *pao = NULL;
-
-	/* subsytem messages are processed by every HPI.
-	 * All other messages are ignored unless the adapter index matches
-	 * an adapter in the HPI
-	 */
-	/* HPI_DEBUG_LOG(DEBUG, "HPI Obj=%d, Func=%d\n", phm->wObject,
-	   phm->wFunction); */
-
-	/* if Dsp has crashed then do not communicate with it any more */
-	if (phm->object != HPI_OBJ_SUBSYSTEM) {
-		pao = hpi_find_adapter(phm->adapter_index);
-		if (!pao) {
-			HPI_DEBUG_LOG(DEBUG,
-				" %d,%d refused, for another HPI?\n",
-				phm->object, phm->function);
-			return;
-		}
-
-		if ((pao->dsp_crashed >= 10)
-			&& (phm->function != HPI_ADAPTER_DEBUG_READ)) {
-			/* allow last resort debug read even after crash */
-			hpi_init_response(phr, phm->object, phm->function,
-				HPI_ERROR_DSP_HARDWARE);
-			HPI_DEBUG_LOG(WARNING, " %d,%d dsp crashed.\n",
-				phm->object, phm->function);
-			return;
-		}
+	if (pao && (pao->dsp_crashed >= 10)
+		&& (phm->function != HPI_ADAPTER_DEBUG_READ)) {
+		/* allow last resort debug read even after crash */
+		hpi_init_response(phr, phm->object, phm->function,
+			HPI_ERROR_DSP_HARDWARE);
+		HPI_DEBUG_LOG(WARNING, " %d,%d dsp crashed.\n", phm->object,
+			phm->function);
+		return;
 	}
 
 	/* Init default response  */
@@ -412,7 +395,7 @@ void HPI_6205(struct hpi_message *phm, struct hpi_response *phr)
 	case HPI_TYPE_MESSAGE:
 		switch (phm->object) {
 		case HPI_OBJ_SUBSYSTEM:
-			subsys_message(phm, phr);
+			subsys_message(pao, phm, phr);
 			break;
 
 		case HPI_OBJ_ADAPTER:
@@ -444,6 +427,26 @@ void HPI_6205(struct hpi_message *phm, struct hpi_response *phr)
 	}
 }
 
+void HPI_6205(struct hpi_message *phm, struct hpi_response *phr)
+{
+	struct hpi_adapter_obj *pao = NULL;
+
+	if (phm->object != HPI_OBJ_SUBSYSTEM) {
+		/* normal messages must have valid adapter index */
+		pao = hpi_find_adapter(phm->adapter_index);
+	} else {
+		/* subsys messages don't address an adapter */
+		_HPI_6205(NULL, phm, phr);
+		return;
+	}
+
+	if (pao)
+		_HPI_6205(pao, phm, phr);
+	else
+		hpi_init_response(phr, phm->object, phm->function,
+			HPI_ERROR_BAD_ADAPTER_NUMBER);
+}
+
 /*****************************************************************************/
 /* SUBSYSTEM */
 
@@ -491,13 +494,11 @@ static void subsys_create_adapter(struct hpi_message *phm,
 }
 
 /** delete an adapter - required by WDM driver */
-static void subsys_delete_adapter(struct hpi_message *phm,
-	struct hpi_response *phr)
+static void adapter_delete(struct hpi_adapter_obj *pao,
+	struct hpi_message *phm, struct hpi_response *phr)
 {
-	struct hpi_adapter_obj *pao;
 	struct hpi_hw_obj *phw;
 
-	pao = hpi_find_adapter(phm->obj_index);
 	if (!pao) {
 		phr->error = HPI_ERROR_INVALID_OBJ_INDEX;
 		return;
@@ -563,11 +564,12 @@ static u16 create_adapter_obj(struct hpi_adapter_obj *pao,
 	}
 
 	err = adapter_boot_load_dsp(pao, pos_error_code);
-	if (err)
+	if (err) {
+		HPI_DEBUG_LOG(ERROR, "DSP code load failed\n");
 		/* no need to clean up as SubSysCreateAdapter */
 		/* calls DeleteAdapter on error. */
 		return err;
-
+	}
 	HPI_DEBUG_LOG(INFO, "load DSP code OK\n");
 
 	/* allow boot load even if mem alloc wont work */
@@ -604,6 +606,7 @@ static u16 create_adapter_obj(struct hpi_adapter_obj *pao,
 				control_cache.number_of_controls,
 				interface->control_cache.size_in_bytes,
 				p_control_cache_virtual);
+
 			if (!phw->p_cache)
 				err = HPI_ERROR_MEMORY_ALLOC;
 		}
@@ -675,16 +678,14 @@ static u16 create_adapter_obj(struct hpi_adapter_obj *pao,
 }
 
 /** Free memory areas allocated by adapter
- * this routine is called from SubSysDeleteAdapter,
+ * this routine is called from AdapterDelete,
   * and SubSysCreateAdapter if duplicate index
 */
 static void delete_adapter_obj(struct hpi_adapter_obj *pao)
 {
-	struct hpi_hw_obj *phw;
+	struct hpi_hw_obj *phw = pao->priv;
 	int i;
 
-	phw = pao->priv;
-
 	if (hpios_locked_mem_valid(&phw->h_control_cache)) {
 		hpios_locked_mem_free(&phw->h_control_cache);
 		hpi_free_control_cache(phw->p_cache);
@@ -1275,6 +1276,7 @@ static u16 adapter_boot_load_dsp(struct hpi_adapter_obj *pao,
 	case HPI_ADAPTER_FAMILY_ASI(0x6300):
 		boot_code_id[1] = HPI_ADAPTER_FAMILY_ASI(0x6400);
 		break;
+	case HPI_ADAPTER_FAMILY_ASI(0x5500):
 	case HPI_ADAPTER_FAMILY_ASI(0x5600):
 	case HPI_ADAPTER_FAMILY_ASI(0x6500):
 		boot_code_id[1] = HPI_ADAPTER_FAMILY_ASI(0x6600);
@@ -2059,7 +2061,6 @@ static int wait_dsp_ack(struct hpi_hw_obj *phw, int state, int timeout_us)
 static void send_dsp_command(struct hpi_hw_obj *phw, int cmd)
 {
 	struct bus_master_interface *interface = phw->p_interface_buffer;
-
 	u32 r;
 
 	interface->host_cmd = cmd;
@@ -2088,7 +2089,7 @@ static u16 message_response_sequence(struct hpi_adapter_obj *pao,
 		phr->specific_error = sizeof(interface->u);
 		phr->size = sizeof(struct hpi_response_header);
 		HPI_DEBUG_LOG(ERROR,
-			"message len %d too big for buffer %zd \n", phm->size,
+			"message len %d too big for buffer %ld \n", phm->size,
 			sizeof(interface->u));
 		return 0;
 	}