Merge "Merge remote-tracking branch 'origin/dev/ssutterlin_hid-atv-jarvis_12-28-17' into dev-kernel" into dev-t194

1 files changed, 79 insertions, 0 deletions

diff --git a/include/linux/iio/imu/tsfw_icm20628.h b/include/linux/iio/imu/tsfw_icm20628.h
new file mode 100644
index 000000000..11d075d6b
--- /dev/null
+++ b/include/linux/iio/imu/tsfw_icm20628.h
@@ -0,0 +1,79 @@
+/*
+ * include/linux/iio/imu/tsfw_icm20628.h
+ *
+ * Copyright (c) 2016, NVIDIA CORPORATION, All rights reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program 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.
+ */
+
+#ifndef __IIO_NVI_TS_MPU_H__
+#define __IIO_NVI_TS_MPU_H__
+
+#include <linux/nvs.h>
+#include <linux/hid.h>
+
+#define SENSOR_REPORT_ID_COMBINED       5
+#define SENSOR_REPORT_ID                6
+#define SENSOR_REPORT_ID_SYN            7
+
+#define SNSR_N                          3
+#define SENSOR_DATA_SET_SIZE            18
+
+struct tsfw_icm20628_snsr {
+        void *nvs_st;
+        struct sensor_cfg cfg;
+};
+
+struct tsfw_icm20628_state {
+        struct nvs_fn_if *nvs;
+        struct hid_device *hdev; /* keep ptr to hid_device to send HOSTCMDs */
+        unsigned int sts;     /* TODO: needed? */
+        unsigned int errs;    /* TODO: needed? */
+        unsigned int enabled; /* TODO: move to tsfw_icm20628_snsr? */
+        struct tsfw_icm20628_snsr snsr[SNSR_N];
+        u8 report_counter;
+        /* sensor data buffer for fragmented packets
+         * guaranteed to be < SENSOR_DATA_SET_SIZE
+         */
+        u8 buffered_data[SENSOR_DATA_SET_SIZE];
+        u8 buffered_cnt;
+};
+
+struct tsfw_icm20628_fn_dev {
+        /* probe
+         * @hdev: hid device associated with sensor
+         * @pst: sensor state data
+         * Returns 0 on success or a negative error code.
+         */
+        int (*probe)(struct hid_device *hdev, struct tsfw_icm20628_state **pst);
+
+        /* recv
+         * @st: sensor state data
+         * @type: report type
+         * @data: sensor data from hid report
+         * @len: length of sensor data
+         * Returns 0 on success or a negative error code.
+         */
+        int (*recv)(struct tsfw_icm20628_state *st, u8 *data, size_t len);
+
+        /* remove
+         * @st: sensor state data
+         * Returns 0 on success or a negative error code.
+         */
+        int (*remove)(struct tsfw_icm20628_state *st);
+};
+
+#ifdef CONFIG_TSFW_ICM
+struct tsfw_icm20628_fn_dev *tsfw_icm20628_fns(void);
+#else
+inline struct tsfw_icm20628_fn_dev *tsfw_icm20628_fns(void) { return NULL; }
+#endif
+
+#endif