db845c: qcom: Add userspace tools to talk to dsp and modem

Add Qcom userspace tools and their respective sepolicy rules.

Userspace tools are downloaded from following github:

To trigger loading of wlan firmware on SDM845
git clone https://github.com/andersson/pd-mapper

Userspace reference for net/qrtr in the Linux kernel
git clone https://github.com/andersson/qrtr

Qualcomm Remote Filesystem Service Implementation
git clone https://github.com/andersson/rmtfs

Trivial File Transfer Protocol server over AF_QIPCRTR
git clone https://github.com/andersson/tqftpserv

Change-Id: Ic466af6fef010a9b71c90e38205f49a876b001e2
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
diff --git a/qcom/qrtr/lib/libqrtr.h b/qcom/qrtr/lib/libqrtr.h
new file mode 100644
index 0000000..87433ed
--- /dev/null
+++ b/qcom/qrtr/lib/libqrtr.h
@@ -0,0 +1,195 @@
+#ifndef _QRTR_LIB_H_
+#define _QRTR_LIB_H_
+
+#include <linux/qrtr.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef offsetof
+#define offsetof(type, md) ((unsigned long)&((type *)0)->md)
+#endif
+
+#ifndef container_of
+#define container_of(ptr, type, member) \
+  ((type *)((char *)(ptr) - offsetof(type, member)))
+#endif
+
+#ifndef AF_QIPCRTR
+#define AF_QIPCRTR 42
+#endif
+
+struct sockaddr_qrtr;
+
+struct qrtr_packet {
+	int type;
+
+	unsigned int node;
+	unsigned int port;
+
+	unsigned int service;
+	unsigned int instance;
+	unsigned int version;
+
+	void *data;
+	size_t data_len;
+};
+
+#define DEFINE_QRTR_PACKET(pkt, size) \
+	char pkt ## _buf[size]; \
+	struct qrtr_packet pkt = { .data = pkt ##_buf, \
+				   .data_len = sizeof(pkt ##_buf), }
+
+#define QMI_REQUEST     0
+#define QMI_RESPONSE    2
+#define QMI_INDICATION  4
+
+#define QMI_COMMON_TLV_TYPE 0
+
+enum qmi_elem_type {
+	QMI_EOTI,
+	QMI_OPT_FLAG,
+	QMI_DATA_LEN,
+	QMI_UNSIGNED_1_BYTE,
+	QMI_UNSIGNED_2_BYTE,
+	QMI_UNSIGNED_4_BYTE,
+	QMI_UNSIGNED_8_BYTE,
+	QMI_SIGNED_1_BYTE_ENUM,
+	QMI_SIGNED_2_BYTE_ENUM,
+	QMI_SIGNED_4_BYTE_ENUM,
+	QMI_STRUCT,
+	QMI_STRING,
+};
+
+enum qmi_array_type {
+	NO_ARRAY,
+	STATIC_ARRAY,
+	VAR_LEN_ARRAY,
+};
+
+/**
+ * struct qmi_elem_info - describes how to encode a single QMI element
+ * @data_type:  Data type of this element.
+ * @elem_len:   Array length of this element, if an array.
+ * @elem_size:  Size of a single instance of this data type.
+ * @array_type: Array type of this element.
+ * @tlv_type:   QMI message specific type to identify which element
+ *              is present in an incoming message.
+ * @offset:     Specifies the offset of the first instance of this
+ *              element in the data structure.
+ * @ei_array:   Null-terminated array of @qmi_elem_info to describe nested
+ *              structures.
+ */
+struct qmi_elem_info {
+	enum qmi_elem_type data_type;
+	uint32_t elem_len;
+	uint32_t elem_size;
+	enum qmi_array_type array_type;
+	uint8_t tlv_type;
+	uint32_t offset;
+	struct qmi_elem_info *ei_array;
+};
+
+#define QMI_RESULT_SUCCESS_V01                  0
+#define QMI_RESULT_FAILURE_V01                  1
+
+#define QMI_ERR_NONE_V01                        0
+#define QMI_ERR_MALFORMED_MSG_V01               1
+#define QMI_ERR_NO_MEMORY_V01                   2
+#define QMI_ERR_INTERNAL_V01                    3
+#define QMI_ERR_CLIENT_IDS_EXHAUSTED_V01        5
+#define QMI_ERR_INVALID_ID_V01                  41
+#define QMI_ERR_ENCODING_V01                    58
+#define QMI_ERR_INCOMPATIBLE_STATE_V01          90
+#define QMI_ERR_NOT_SUPPORTED_V01               94
+
+/**
+ * qmi_response_type_v01 - common response header (decoded)
+ * @result:     result of the transaction
+ * @error:      error value, when @result is QMI_RESULT_FAILURE_V01
+ */
+struct qmi_response_type_v01 {
+	uint16_t result;
+	uint16_t error;
+};
+
+extern struct qmi_elem_info qmi_response_type_v01_ei[];
+
+int qrtr_open(int rport);
+void qrtr_close(int sock);
+
+int qrtr_sendto(int sock, uint32_t node, uint32_t port, const void *data, unsigned int sz);
+int qrtr_recvfrom(int sock, void *buf, unsigned int bsz, uint32_t *node, uint32_t *port);
+int qrtr_recv(int sock, void *buf, unsigned int bsz);
+
+int qrtr_new_server(int sock, uint32_t service, uint16_t version, uint16_t instance);
+int qrtr_remove_server(int sock, uint32_t service, uint16_t version, uint16_t instance);
+
+int qrtr_publish(int sock, uint32_t service, uint16_t version, uint16_t instance);
+int qrtr_bye(int sock, uint32_t service, uint16_t version, uint16_t instance);
+
+int qrtr_new_lookup(int sock, uint32_t service, uint16_t version, uint16_t instance);
+int qrtr_remove_lookup(int sock, uint32_t service, uint16_t version, uint16_t instance);
+
+int qrtr_poll(int sock, unsigned int ms);
+
+int qrtr_decode(struct qrtr_packet *dest, void *buf, size_t len,
+		const struct sockaddr_qrtr *sq);
+
+int qmi_decode_header(const struct qrtr_packet *pkt, unsigned int *msg_id);
+int qmi_decode_message(void *c_struct, unsigned int *txn,
+		       const struct qrtr_packet *pkt,
+		       int type, int id, struct qmi_elem_info *ei);
+ssize_t qmi_encode_message(struct qrtr_packet *pkt, int type, int msg_id,
+			   int txn_id, const void *c_struct,
+			   struct qmi_elem_info *ei);
+
+/* Initial kernel header didn't expose these */
+#ifndef QRTR_NODE_BCAST
+
+#define QRTR_NODE_BCAST 0xffffffffu
+#define QRTR_PORT_CTRL  0xfffffffeu
+
+enum qrtr_pkt_type {
+        QRTR_TYPE_DATA          = 1,
+        QRTR_TYPE_HELLO         = 2,
+        QRTR_TYPE_BYE           = 3,
+        QRTR_TYPE_NEW_SERVER    = 4,
+        QRTR_TYPE_DEL_SERVER    = 5,
+        QRTR_TYPE_DEL_CLIENT    = 6,
+        QRTR_TYPE_RESUME_TX     = 7,
+        QRTR_TYPE_EXIT          = 8,
+        QRTR_TYPE_PING          = 9,
+        QRTR_TYPE_NEW_LOOKUP    = 10,
+        QRTR_TYPE_DEL_LOOKUP    = 11,
+};
+
+struct qrtr_ctrl_pkt {
+        __le32 cmd;
+
+        union {
+                struct {
+                        __le32 service;
+                        __le32 instance;
+                        __le32 node;
+                        __le32 port;
+                } server;
+
+                struct {
+                        __le32 node;
+                        __le32 port;
+                } client;
+        };
+} __attribute__((packed));
+
+#endif
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif