uwb: add sscd functionality to qm35 driver
Bug: 272537946
Change-Id: I0432ce8eae65103e3eae46b69ae0836b1aabd859
Signed-off-by: Hasan Awais <hasanawais@google.com>
(cherry picked from commit 52a00971ebd06b321fb9b040227bc53fa689606c)
diff --git a/BUILD.bazel b/BUILD.bazel
index 79dc4bc..47ced9b 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -8,7 +8,9 @@
"**/*.c",
"**/*.h",
"Kbuild",
- ]),
+ ]) + [
+ "//private/google-modules/soc/gs:gs_soc_headers",
+ ],
outs = [
"qm35.ko",
],
@@ -17,4 +19,7 @@
"//private/devices/google:__subpackages__",
"//private/google-modules/soc/gs:__pkg__",
],
+ deps = [
+ "//private/google-modules/soc/gs:gs_soc_module",
+ ],
)
diff --git a/Kbuild b/Kbuild
index 7e16ab7..3e4f197 100644
--- a/Kbuild
+++ b/Kbuild
@@ -4,6 +4,7 @@
qm35-y := \
qm35-spi.o \
+ qm35-sscd.o \
qm35_rb.o \
qmrom_spi.o \
libqmrom/src/qmrom_common.o \
diff --git a/Makefile b/Makefile
index fae1a30..1734d94 100644
--- a/Makefile
+++ b/Makefile
@@ -8,5 +8,8 @@
KBUILD_OPTIONS += CONFIG_QM35_SPI=m
+include $(KERNEL_SRC)/../private/google-modules/soc/gs/Makefile.include
+
modules modules_install clean:
- $(MAKE) -C $(KERNEL_SRC) M=$(M) INSTALL_MOD_STRIP=1 $(KBUILD_OPTIONS) $(@)
+ $(MAKE) -C $(KERNEL_SRC) M=$(M) INSTALL_MOD_STRIP=1 \
+ $(KBUILD_OPTIONS) KBUILD_EXTRA_SYMBOLS="$(EXTRA_SYMBOLS)" $(@)
diff --git a/hsspi_coredump.c b/hsspi_coredump.c
index 0172ef4..ec7cc25 100644
--- a/hsspi_coredump.c
+++ b/hsspi_coredump.c
@@ -28,6 +28,7 @@
#include "qm35.h"
#include "hsspi_coredump.h"
+#include "qm35-sscd.h"
#define COREDUMP_HEADER_NTF 0x00
#define COREDUMP_BODY_NTF 0x01
@@ -206,6 +207,9 @@
struct coredump_layer *layer =
container_of(hlayer, struct coredump_layer, hlayer);
+ struct qm35_ctx *qm35_hdl =
+ container_of(layer, struct qm35_ctx, coredump_layer);
+
if (status)
goto out;
@@ -252,6 +256,9 @@
if (crc == layer->coredump_crc)
layer->coredump_status = COREDUMP_RCV_ACK;
+ if (qm35_hdl->sscd)
+ report_coredump(qm35_hdl);
+
coredump_send_rcv_status(layer, layer->coredump_status);
break;
diff --git a/qm35-spi.c b/qm35-spi.c
index c39f944..0928d8c 100644
--- a/qm35-spi.c
+++ b/qm35-spi.c
@@ -53,6 +53,7 @@
#include <fwupdater.h>
#include "qm35.h"
+#include "qm35-sscd.h"
#include "uci_ioctls.h"
#include "hsspi.h"
#include "hsspi_uci.h"
@@ -1011,6 +1012,11 @@
goto log_layer_unregister;
}
+ dev_dbg(&spi->dev, "SSCD device init\n");
+ ret = register_coredump(spi, qm35_ctx);
+ if (ret)
+ goto sscd_unregister;
+
dev_info(&spi->dev, "Registered: [%s] misc device\n", uci_misc->name);
dev_info(&spi->dev, "QM35 spi driver version " DRV_VERSION " probed\n");
@@ -1032,6 +1038,8 @@
uci_layer_deinit(&qm35_ctx->uci_layer);
hsspi_deinit:
hsspi_deinit(&qm35_ctx->hsspi);
+sscd_unregister:
+ unregister_coredump(qm35_ctx->sscd);
poweroff:
qm35_regulators_set(qm35_ctx, false);
return ret;
diff --git a/qm35-sscd.c b/qm35-sscd.c
new file mode 100644
index 0000000..b02647e
--- /dev/null
+++ b/qm35-sscd.c
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include "qm35-sscd.h"
+
+#define NAME "uwb"
+
+void release_coredump(struct device *dev)
+{
+}
+
+int report_coredump(struct qm35_ctx *qm35_ctx)
+{
+ struct coredump_layer *layer = &qm35_ctx->coredump_layer;
+ struct sscd_platform_data *sscd_pdata = &qm35_ctx->sscd->sscd_pdata;
+ struct sscd_info *sscd_info = &qm35_ctx->sscd->sscd_info;
+
+ if (!layer || !sscd_pdata || !sscd_info || !sscd_pdata->sscd_report)
+ return 1;
+
+ sscd_info->seg_count = 0;
+ sscd_info->name = NAME;
+ sscd_info->segs[0].addr = layer->coredump_data;
+ sscd_info->segs[0].size = layer->coredump_size;
+ sscd_info->seg_count = 1;
+
+ return sscd_pdata->sscd_report(&qm35_ctx->sscd->sscd_dev,
+ sscd_info->segs, sscd_info->seg_count, 0,
+ "qm35 coredump");
+}
+
+int register_coredump(struct spi_device *spi, struct qm35_ctx *qm35_ctx)
+{
+ struct sscd_desc *sscd;
+ sscd = devm_kzalloc(&spi->dev, sizeof(*sscd), GFP_KERNEL);
+ if (!sscd)
+ return -ENOMEM;
+
+ sscd->sscd_dev.name = NAME;
+ sscd->sscd_dev.driver_override = SSCD_NAME;
+ sscd->sscd_dev.id = -1;
+ sscd->sscd_dev.dev.platform_data = &sscd->sscd_pdata;
+ sscd->sscd_dev.dev.release = release_coredump;
+
+ qm35_ctx->sscd = sscd;
+ return platform_device_register(&qm35_ctx->sscd->sscd_dev);
+}
+
+void unregister_coredump(struct sscd_desc *sscd)
+{
+ platform_device_unregister(&sscd->sscd_dev);
+}
diff --git a/qm35-sscd.h b/qm35-sscd.h
new file mode 100644
index 0000000..8c90eb0
--- /dev/null
+++ b/qm35-sscd.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __QM35_SSCD__
+#define __QM35_SSCD__
+
+#include <linux/platform_data/sscoredump.h>
+#include "qm35.h"
+#include "hsspi_coredump.h"
+
+#define QM35_COREDUMP_SEGMENTS 1
+
+struct sscd_info {
+ char *name;
+ struct sscd_segment segs[QM35_COREDUMP_SEGMENTS];
+ u16 seg_count;
+};
+
+struct sscd_desc {
+ struct sscd_info sscd_info;
+ struct sscd_platform_data sscd_pdata;
+ struct platform_device sscd_dev;
+};
+
+int report_coredump(struct qm35_ctx *qm35_ctx);
+int register_coredump(struct spi_device *spi, struct qm35_ctx *qm35_ctx);
+void unregister_coredump(struct sscd_desc *sscd);
+
+#endif /* __QM35_SSCD__ */
diff --git a/qm35.h b/qm35.h
index 7bc3d70..81f4240 100644
--- a/qm35.h
+++ b/qm35.h
@@ -61,6 +61,7 @@
struct regulator *vdd4;
bool regulators_enabled;
bool log_qm_traces;
+ struct sscd_desc *sscd;
/* qmrom support */
struct wait_queue_head qmrom_wq_ready;
