[WIP] Add os partitionspatches-todo/modem-abstraction-modem-partitions-2

This is a test to see if we can make an abstraction for the modem
OS partition loading.

The concept behind that is pretty easy to understand:
- There is a modem OS partition
- This has has sub-partitions
- The sub-partitions need to be loaded in the modem

Given that:
- The loading code of some functions like xmm626_*_psi_load
  is very similar between the MIPI and HSIC functions (the only
  difference is that it uses a MIPI vs HSIC load function behind
  the hood).
- We now know the partition names
- The concept is trivial to understand

It would be a good idea to get that part merged first.

It will also enable to cleanup a lot the device codes at the same
time, and we could merge part of our other abstraction for the modem
as we need a mipi/hsic abstraction for sending the data to the modem.

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>

13 files changed, 286 insertions, 48 deletions

diff --git a/samsung-ipc/devices/galaxys2/galaxys2.c b/samsung-ipc/devices/galaxys2/galaxys2.c
index cdfe20c..e9e7278 100644
--- a/samsung-ipc/devices/galaxys2/galaxys2.c
+++ b/samsung-ipc/devices/galaxys2/galaxys2.c
@@ -140,7 +140,7 @@ int galaxys2_boot(struct ipc_client *client)
 
 	p = (unsigned char *) modem_image_data + GALAXYS2_SEC_START_OFFSET;
 
-	rc = xmm626_hsic_sec_start_send(client, modem_boot_fd, (void *) p,
+	rc = xmm626_hsic_start_load_os(client, modem_boot_fd, (void *) p,
 					GALAXYS2_SEC_START_SIZE);
 	if (rc < 0) {
 		ipc_client_log(client, "Sending XMM626 HSIC SEC start failed");
@@ -165,7 +165,7 @@ int galaxys2_boot(struct ipc_client *client)
 	}
 	ipc_client_log(client, "Sent XMM626 HSIC nv_data");
 
-	rc = xmm626_hsic_sec_end_send(client, modem_boot_fd);
+	rc = xmm626_hsic_stop_load_os(client, modem_boot_fd);
 	if (rc < 0) {
 		ipc_client_log(client, "Sending XMM626 HSIC SEC end failed");
 		goto error;
diff --git a/samsung-ipc/devices/i9300/i9300.c b/samsung-ipc/devices/i9300/i9300.c
index 85709a8..7956c05 100644
--- a/samsung-ipc/devices/i9300/i9300.c
+++ b/samsung-ipc/devices/i9300/i9300.c
@@ -27,6 +27,7 @@
 
 #include "ipc.h"
 #include "devices/i9300/i9300.h"
+#include "modems/xmm626/os_partitions.h"
 #include "modems/xmm626/xmm626.h"
 #include "modems/xmm626/xmm626_hsic.h"
 #include "modems/xmm626/xmm626_kernel_smdk4412.h"
@@ -34,6 +35,7 @@
 int i9300_boot(struct ipc_client *client)
 {
 	void *modem_image_data = NULL;
+	size_t modem_image_data_size = 0; // TODO
 	int modem_image_fd = -1;
 	int modem_boot_fd = -1;
 	int modem_link_fd = -1;
@@ -54,6 +56,7 @@ int i9300_boot(struct ipc_client *client)
 
 	modem_image_data = mmap(0, I9300_MODEM_IMAGE_SIZE, PROT_READ,
 				MAP_SHARED, modem_image_fd, 0);
+	//TODO: modem_image_data_size
 	if (modem_image_data == NULL ||
 	    modem_image_data == (void *) 0xffffffff) {
 		ipc_client_log(client,
@@ -100,25 +103,20 @@ int i9300_boot(struct ipc_client *client)
 	}
 	ipc_client_log(client, "Waited for link connected");
 
-	p = (unsigned char *) modem_image_data + I9300_PSI_OFFSET;
-
-	rc = xmm626_hsic_psi_send(client, modem_boot_fd, (void *) p,
-				  I9300_PSI_SIZE);
-	if (rc < 0) {
-		ipc_client_log(client, "Sending XMM626 HSIC PSI failed");
+	rc = xmm626_load_os_subpartition(client, MODEM_OS_PARTITION_PSIRAM,
+					 modem_boot_fd,
+					 modem_image_data,
+					 modem_image_data_size);
+	if (rc < 0)
 		goto error;
-	}
-	ipc_client_log(client, "Sent XMM626 HSIC PSI");
 
-	p = (unsigned char *) modem_image_data + I9300_EBL_OFFSET;
+	rc = xmm626_load_os_subpartition(client, MODEM_OS_PARTITION_EBL,
+					 modem_boot_fd,
+					 modem_image_data,
+					 modem_image_data_size);
 
-	rc = xmm626_hsic_ebl_send(client, modem_boot_fd, (void *) p,
-				  I9300_EBL_SIZE);
-	if (rc < 0) {
-		ipc_client_log(client, "Sending XMM626 HSIC EBL failed");
+	if (rc < 0)
 		goto error;
-	}
-	ipc_client_log(client, "Sent XMM626 HSIC EBL");
 
 	rc = xmm626_hsic_port_config_send(client, modem_boot_fd);
 	if (rc < 0) {
@@ -128,34 +126,29 @@ int i9300_boot(struct ipc_client *client)
 	}
 	ipc_client_log(client, "Sent XMM626 HSIC port config");
 
-	p = (unsigned char *) modem_image_data + I9300_SEC_START_OFFSET;
-
-	rc = xmm626_hsic_sec_start_send(client, modem_boot_fd, (void *) p,
-					I9300_SEC_START_SIZE);
-	if (rc < 0) {
-		ipc_client_log(client, "Sending XMM626 HSIC SEC start failed");
+	rc = xmm626_load_os_subpartition(client, MODEM_OS_PARTITION_SECPACK,
+					 modem_boot_fd,
+					 modem_image_data,
+					 modem_image_data_size);
+	if (rc < 0)
 		goto error;
-	}
-	ipc_client_log(client, "Sent XMM626 HSIC SEC start");
 
-	p = (unsigned char *) modem_image_data + I9300_FIRMWARE_OFFSET;
-
-	rc = xmm626_hsic_firmware_send(client, modem_boot_fd, (void *) p,
-				       I9300_FIRMWARE_SIZE);
-	if (rc < 0) {
-		ipc_client_log(client, "Sending XMM626 HSIC firmware failed");
+	rc = xmm626_load_os_subpartition(client, MODEM_OS_PARTITION_MAIN,
+					 modem_boot_fd,
+					 modem_image_data,
+					 modem_image_data_size);
+	if (rc < 0)
 		goto error;
-	}
-	ipc_client_log(client, "Sent XMM626 HSIC firmware");
 
-	rc = xmm626_hsic_nv_data_send(client, modem_boot_fd);
-	if (rc < 0) {
-		ipc_client_log(client, "Sending XMM626 HSIC nv_data failed");
+	rc = xmm626_load_os_subpartition(client, MODEM_OS_PARTITION_NV,
+					 modem_boot_fd,
+					 modem_image_data,
+					 modem_image_data_size);
+	if (rc < 0)
 		goto error;
-	}
-	ipc_client_log(client, "Sent XMM626 HSIC nv_data");
 
-	rc = xmm626_hsic_sec_end_send(client, modem_boot_fd);
+	/* TODO: convert to load start/stop */
+	rc = xmm626_hsic_stop_load_os(client, modem_boot_fd);
 	if (rc < 0) {
 		ipc_client_log(client, "Sending XMM626 HSIC SEC end failed");
 		goto error;
@@ -387,6 +380,37 @@ int i9300_data_destroy(__attribute__((unused)) struct ipc_client *client,
 	return 0;
 }
 
+struct ipc_client_modem_os_subpartition i9300_modem_os_subpartitions_specs[] = {
+	{
+		.type = MODEM_OS_PARTITION_PSIRAM,
+		.offset = 0x1000,
+		.size = 0xE000,
+	},
+	{
+		.type = MODEM_OS_PARTITION_EBL,
+		.offset = 0xF000,
+		.size = 0x19000,
+	},
+	{
+		.type = MODEM_OS_PARTITION_MAIN,
+		.offset = 0x28000,
+		.size = 0x9D7800,
+	},
+	{
+		.type = MODEM_OS_PARTITION_SECPACK,
+		.offset = 0x9FF800,
+		.size = 0x800,
+	},
+	{
+		.type = MODEM_OS_PARTITION_NV,
+		.offset = 0xA00000,
+		.size = 0x200000,
+	},
+	{
+		/* Sentinel */
+	},
+};
+
 struct ipc_client_ops i9300_fmt_ops = {
 	.boot = i9300_boot,
 	.send = xmm626_kernel_smdk4412_fmt_send,
@@ -430,3 +454,9 @@ struct ipc_client_nv_data_specs i9300_nv_data_specs = {
 	.nv_data_size = XMM626_NV_DATA_SIZE,
 	.nv_data_chunk_size = XMM626_NV_DATA_CHUNK_SIZE,
 };
+
+struct ipc_client_modem_os_partition_specs i9300_modem_os_partition_specs = {
+	.path = I9300_MODEM_IMAGE_DEVICE,
+	.size = I9300_MODEM_IMAGE_SIZE,
+	.subpartitions_specs = i9300_modem_os_subpartitions_specs,
+};
diff --git a/samsung-ipc/devices/i9300/i9300.h b/samsung-ipc/devices/i9300/i9300.h
index 2cd011d..52cf17e 100644
--- a/samsung-ipc/devices/i9300/i9300.h
+++ b/samsung-ipc/devices/i9300/i9300.h
@@ -43,5 +43,6 @@ extern struct ipc_client_ops i9300_rfs_ops;
 extern struct ipc_client_handlers i9300_handlers;
 extern struct ipc_client_gprs_specs i9300_gprs_specs;
 extern struct ipc_client_nv_data_specs i9300_nv_data_specs;
-
+extern struct ipc_client_modem_os_partition_specs i9300_modem_os_partition_specs;
+	
 #endif /* __I9300_H__ */
diff --git a/samsung-ipc/devices/ipc_devices.c b/samsung-ipc/devices/ipc_devices.c
index fc767e0..ef2d1f3 100644
--- a/samsung-ipc/devices/ipc_devices.c
+++ b/samsung-ipc/devices/ipc_devices.c
@@ -132,6 +132,7 @@ struct ipc_device_desc ipc_devices[] = {
 		.handlers = &i9300_handlers,
 		.gprs_specs = &i9300_gprs_specs,
 		.nv_data_specs = &i9300_nv_data_specs,
+		.modem_os_partition_specs = &i9300_modem_os_partition_specs,
 	},
 	{
 		.name = "n7100",
diff --git a/samsung-ipc/devices/ipc_devices.h b/samsung-ipc/devices/ipc_devices.h
index 176607c..bdcbba6 100644
--- a/samsung-ipc/devices/ipc_devices.h
+++ b/samsung-ipc/devices/ipc_devices.h
@@ -42,6 +42,7 @@ struct ipc_device_desc {
 	struct ipc_client_handlers *handlers;
 	struct ipc_client_gprs_specs *gprs_specs;
 	struct ipc_client_nv_data_specs *nv_data_specs;
+	struct ipc_client_modem_os_partition_specs *modem_os_partition_specs;
 };
 
 extern struct ipc_device_desc ipc_devices[];
diff --git a/samsung-ipc/devices/n5100/n5100.c b/samsung-ipc/devices/n5100/n5100.c
index 0abe896..5e040dd 100644
--- a/samsung-ipc/devices/n5100/n5100.c
+++ b/samsung-ipc/devices/n5100/n5100.c
@@ -131,7 +131,7 @@ int n5100_boot(struct ipc_client *client)
 
 	p = (unsigned char *) modem_image_data + N5100_SEC_START_OFFSET;
 
-	rc = xmm626_hsic_sec_start_send(client, modem_boot_fd, (void *) p,
+	rc = xmm626_hsic_start_load_os(client, modem_boot_fd, (void *) p,
 					N5100_SEC_START_SIZE);
 	if (rc < 0) {
 		ipc_client_log(client, "Sending XMM626 HSIC SEC start failed");
@@ -156,7 +156,7 @@ int n5100_boot(struct ipc_client *client)
 	}
 	ipc_client_log(client, "Sent XMM626 HSIC nv_data");
 
-	rc = xmm626_hsic_sec_end_send(client, modem_boot_fd);
+	rc = xmm626_hsic_stop_load_os(client, modem_boot_fd);
 	if (rc < 0) {
 		ipc_client_log(client, "Sending XMM626 HSIC SEC end failed");
 		goto error;
diff --git a/samsung-ipc/devices/n7100/n7100.c b/samsung-ipc/devices/n7100/n7100.c
index d5091a2..77cc473 100644
--- a/samsung-ipc/devices/n7100/n7100.c
+++ b/samsung-ipc/devices/n7100/n7100.c
@@ -130,7 +130,7 @@ int n7100_boot(struct ipc_client *client)
 
 	p = (unsigned char *) modem_image_data + N7100_SEC_START_OFFSET;
 
-	rc = xmm626_hsic_sec_start_send(client, modem_boot_fd, (void *) p,
+	rc = xmm626_hsic_start_load_os(client, modem_boot_fd, (void *) p,
 					N7100_SEC_START_SIZE);
 	if (rc < 0) {
 		ipc_client_log(client, "Sending XMM626 HSIC SEC start failed");
@@ -155,7 +155,7 @@ int n7100_boot(struct ipc_client *client)
 	}
 	ipc_client_log(client, "Sent XMM626 HSIC nv_data");
 
-	rc = xmm626_hsic_sec_end_send(client, modem_boot_fd);
+	rc = xmm626_hsic_stop_load_os(client, modem_boot_fd);
 	if (rc < 0) {
 		ipc_client_log(client, "Sending XMM626 HSIC SEC end failed");
 		goto error;
diff --git a/samsung-ipc/ipc.c b/samsung-ipc/ipc.c
index c116fbb..b64f9d6 100644
--- a/samsung-ipc/ipc.c
+++ b/samsung-ipc/ipc.c
@@ -215,6 +215,12 @@ static struct ipc_client *ipc_transport_client_create(int type)
 	client->gprs_specs = ipc_devices[device_index].gprs_specs;
 	client->nv_data_specs = ipc_devices[device_index].nv_data_specs;
 
+	/* Not all devices currently implement that
+	 * TODO: Remove the check when implemented
+	 */
+	if (ipc_devices[device_index].modem_os_partition_specs)
+		client->modem_os_partition_specs = ipc_devices[device_index].modem_os_partition_specs;
+
 	/* Handlers can be modified */
 	client->handlers = (struct ipc_client_handlers *) calloc(
 		1, sizeof(struct ipc_client_handlers));
diff --git a/samsung-ipc/ipc.h b/samsung-ipc/ipc.h
index 1cfa757..724569f 100644
--- a/samsung-ipc/ipc.h
+++ b/samsung-ipc/ipc.h
@@ -23,6 +23,8 @@
 
 #include <samsung-ipc.h>
 
+#include "modems/xmm626/os_partitions.h"
+
 #ifndef __IPC_H__
 #define __IPC_H__
 
@@ -98,6 +100,7 @@ struct ipc_client {
 	struct ipc_client_handlers *handlers;
 	struct ipc_client_gprs_specs *gprs_specs;
 	struct ipc_client_nv_data_specs *nv_data_specs;
+	struct ipc_client_modem_os_partition_specs *modem_os_partition_specs;
 };
 
 /*
diff --git a/samsung-ipc/modems/xmm626/os_partitions.c b/samsung-ipc/modems/xmm626/os_partitions.c
new file mode 100644
index 0000000..04aa1a4
--- /dev/null
+++ b/samsung-ipc/modems/xmm626/os_partitions.c
@@ -0,0 +1,126 @@
+/*
+ * This file is part of libsamsung-ipc.
+ *
+ * Copyright (C) 2012 Alexander Tarasikov <alexander.tarasikov@gmail.com>
+ * Copyright (C) 2013-2014 Paul Kocialkowski <contact@paulk.fr>
+ *
+ * Based on the incomplete C++ implementation which is:
+ * Copyright (C) 2012 Sergey Gridasov <grindars@gmail.com>
+ *
+ * libsamsung-ipc is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * libsamsung-ipc is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with libsamsung-ipc.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+
+#include "ipc.h"
+#include "modems/modem.h"
+#include "modems/xmm626/os_partitions.h"
+#include "modems/xmm626/xmm626.h"
+
+int xmm626_load_os_subpartition(struct ipc_client *client,
+				enum ipc_client_modem_os_partition type, int fd,
+				void *data, size_t data_size)
+{
+	int rc;
+
+	switch (partition->type) {
+	case MODEM_OS_PARTITION_PSIRAM:
+		// TODO: MIPI/HSIC
+		return xmm626_psi_send(client, fd,
+				       data,
+				       data_size);
+	case MODEM_OS_PARTITION_EBL:
+		// TODO: MIPI/HSIC
+		return xmm626_hsic_ebl_send(client, fd, data, data_size);
+
+	case MODEM_OS_PARTITION_MAIN:
+		rc = xmm626_send_main_partition(client, device_fd, data,
+						  data_size);
+	case MODEM_OS_PARTITION_SECPACK:
+		/* TODO */
+		break;
+	case MODEM_OS_PARTITION_NV:
+		rc = xmm626_nv_data_send(client, device_fd);
+	}
+
+	if (rc < 0)
+		ipc_client_log(
+			client,
+			"Loading %s partition into the XMM626 modem failed",
+			modem_os_subpartition(type));
+	else
+		ipc_client_log(
+			client,
+			"Loading %s partition into the XMM626 modem failed",
+			modem_os_subpartition(type));
+
+	return rc;
+}
+
+
+int xmm626_send_main_partition(struct ipc_client *client, int device_fd,
+			 const void *firmware_data, size_t firmware_size)
+{
+	int rc;
+
+	if (client == NULL || device_fd < 0 || firmware_data == NULL ||
+	    firmware_size == 0) {
+		return -1;
+	}
+
+	rc = modem_data_send(client, device_fd, firmware_data, firmware_size,
+			     XMM626_FIRMWARE_ADDRESS);
+	if (rc < 0)
+		return -1;
+
+	return 0;
+}
+
+int xmm626_nv_data_send(struct ipc_client *client, int device_fd)
+{
+	void *nv_data = NULL;
+	size_t nv_size;
+	int rc;
+
+	if (client == NULL || device_fd < 0)
+		return -1;
+
+	nv_size = ipc_client_nv_data_size(client);
+	if (nv_size == 0)
+		return -1;
+
+	nv_data = ipc_nv_data_load(client);
+	if (nv_data == NULL) {
+		ipc_client_log(client, "Loading nv_data failed");
+		goto error;
+	}
+	ipc_client_log(client, "Loaded nv_data");
+
+	rc = modem_data_send(client, device_fd, nv_data, nv_size,
+					 XMM626_NV_DATA_ADDRESS);
+	if (rc < 0)
+		goto error;
+
+	rc = 0;
+	goto complete;
+
+error:
+	rc = -1;
+
+complete:
+	if (nv_data != NULL)
+		free(nv_data);
+
+	return rc;
+}
diff --git a/samsung-ipc/modems/xmm626/os_partitions.h b/samsung-ipc/modems/xmm626/os_partitions.h
new file mode 100644
index 0000000..c1b5a74
--- /dev/null
+++ b/samsung-ipc/modems/xmm626/os_partitions.h
@@ -0,0 +1,70 @@
+/*
+ * This file is part of libsamsung-ipc.
+ *
+ * Copyright (C) 2013-2014 Paul Kocialkowski <contact@paulk.fr>
+ * Copyright (C) 2020 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
+ *
+ * libsamsung-ipc is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * libsamsung-ipc is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with libsamsung-ipc.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef XMM626_OS_PARTITIONS
+#define XMM626_OS_PARTITIONS
+
+/*  Current function/partition mapping
+ *  TODO: migrate functions
+ *  +-----------------+-----------+
+ *  | Function        | Partition | 
+ *  +-----------------+-----------+
+ *  | psi             | PSIRAM    |
+ *  | ebl             | EBL       |
+ *  | firmware        | MAIN      |
+ *  | sec_start       | SECPACK   |
+ *  | device specific | NV        |
+ *  +-----------------+-----------+
+ */
+
+enum ipc_client_modem_os_subpartition_type {
+	MODEM_OS_PARTITION_HEADER = 0,
+        MODEM_OS_PARTITION_PSIRAM,
+        MODEM_OS_PARTITION_EBL,
+        MODEM_OS_PARTITION_MAIN,
+        MODEM_OS_PARTITION_SECPACK,
+        MODEM_OS_PARTITION_NV,
+};
+
+#define ipc_client_modem_os_subpartition_string(subpartition) #subpartition
+	/* #if subpartition > MODEM_OS_PARTITION_NV	\ */
+	/* 	#error "Unknown modem_os_subpartition"	\ */
+	/* #else						\ */
+	/* #subpartition					\ */
+	/* #endif						\ */
+
+struct ipc_client_modem_os_subpartition {
+	const enum ipc_client_modem_os_subpartition_type type;
+	void *data;
+	const size_t offset;
+	const size_t size;
+};
+
+struct ipc_client_modem_os_partition_specs {
+	char* path;
+	size_t size;
+	struct ipc_client_modem_os_subpartition *subpartitions_specs[];
+};
+
+int xmm626_load_os_subpartition(struct ipc_client *client,
+				enum ipc_client_modem_os_subpartition_type type, int fd,
+				void *data, size_t data_size);
+
+#endif /* XMM626_OS_PARTITIONS */
diff --git a/samsung-ipc/modems/xmm626/xmm626_hsic.c b/samsung-ipc/modems/xmm626/xmm626_hsic.c
index 6e7126c..696f232 100644
--- a/samsung-ipc/modems/xmm626/xmm626_hsic.c
+++ b/samsung-ipc/modems/xmm626/xmm626_hsic.c
@@ -493,7 +493,7 @@ complete:
 	return rc;
 }
 
-int xmm626_hsic_sec_start_send(struct ipc_client *client, int device_fd,
+int xmm626_hsic_start_load_os(struct ipc_client *client, int device_fd,
 			       const void *sec_data, size_t sec_size)
 {
 	int rc;
@@ -512,7 +512,7 @@ int xmm626_hsic_sec_start_send(struct ipc_client *client, int device_fd,
 	return 0;
 }
 
-int xmm626_hsic_sec_end_send(struct ipc_client *client, int device_fd)
+int xmm626_hsic_stop_load_os(struct ipc_client *client, int device_fd)
 {
 	unsigned short sec_data;
 	size_t sec_size;
diff --git a/samsung-ipc/modems/xmm626/xmm626_hsic.h b/samsung-ipc/modems/xmm626/xmm626_hsic.h
index 6385cdc..845612f 100644
--- a/samsung-ipc/modems/xmm626/xmm626_hsic.h
+++ b/samsung-ipc/modems/xmm626/xmm626_hsic.h
@@ -56,9 +56,9 @@ int xmm626_hsic_ebl_send(struct ipc_client *client, int device_fd,
 			 const void *ebl_data, size_t ebl_size);
 
 int xmm626_hsic_port_config_send(struct ipc_client *client, int device_fd);
-int xmm626_hsic_sec_start_send(struct ipc_client *client, int device_fd,
+int xmm626_hsic_start_load_os(struct ipc_client *client, int device_fd,
 			       const void *sec_data, size_t sec_size);
-int xmm626_hsic_sec_end_send(struct ipc_client *client, int device_fd);
+int xmm626_hsic_stop_load_os(struct ipc_client *client, int device_fd);
 int xmm626_hsic_firmware_send(struct ipc_client *client, int device_fd,
 			      const void *firmware_data, size_t firmware_size);
 int xmm626_hsic_nv_data_send(struct ipc_client *client, int device_fd);