X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/rsbs2/blobdiff_plain/d51930558a73dd1083b924159971d4c77df411e6..70947537f938b81ec2fa42debc8086a829c995bd:/bmc/ipmb.c

diff --git a/bmc/ipmb.c b/bmc/ipmb.c
index 7d272fb..65ddea0 100644
--- a/bmc/ipmb.c
+++ b/bmc/ipmb.c
@@ -1,5 +1,8 @@
+#include <string.h>
 #include <stdio.h>
 
+#include "i2c.h"
+#include "chassis.h"
 #include "ipmb.h"
 
 uint8_t ipmb_csum(unsigned char *buf, int len)
@@ -14,43 +17,181 @@ uint8_t ipmb_csum(unsigned char *buf, int len)
 	return -csum;
 }
 
-void decode_ipmb_pkt(unsigned char *buf, int len)
+void ipmb_send(struct ipmb_resp *resp)
 {
+	unsigned char buf[24];
+	int len;
+#ifdef DEBUG
 	int i;
-	struct ipmb_req req;
+#endif
 
-	req.rsSA = buf[0];
-	req.netFn = (buf[1]>>2)&0x3f;
-	req.rsLUN = (buf[1] & 0x03);
-	req.rqSA = buf[3];
-	req.rqSEQ = (buf[4]>>2)&0x3f;
-	req.rqLUN = (buf[4] & 0x03);
-	req.cmd = buf[5];
-	req.data = buf+6;
-	req.datalen = len - 6 - 1;
+	buf[0] = resp->rqSA;
+	buf[1] = ((resp->netFn)<<2) | (resp->rqLUN & 0x3);
+	buf[2] = ipmb_csum(buf, 2);
+	buf[3] = resp->rsSA;
+	buf[4] = ((resp->rqSEQ)<<2) | (resp->rsLUN & 0x3);
+	buf[5] = resp->cmd;
+	memcpy(buf+6, resp->data, resp->datalen);
+	len = resp->datalen + 7;
+	buf[len-1] = ipmb_csum(buf+3, len - 4);
+
+#ifdef DEBUG
+	printf("Sending: ");
+	for(i = 0; i < len; i++) {
+		printf("0x%02x ", buf[i]);
+	}
+	printf("\n");
+#endif
+
+	i2c_send(buf, len);
+
+}
+
+#ifdef DEBUG
+void ipmb_dump_req(struct ipmb_req *req)
+{
+	int i;
 
 	printf(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
 	printf("Connection Header:\n");
-	printf("\trs Slave Addr.: 0x%02x\n", req.rsSA);
-	printf("\tnetFn: 0x%02x, LUN: 0x%02x\n", req.netFn, req.rsLUN);
-	printf("\tChecksum: 0x%02x (%s)\n", buf[2],
-		(buf[2] == ipmb_csum(buf, 2)) ? "OK" : "Wrong");
+	printf("\trs Slave Addr.: 0x%02x\n", req->rsSA);
+	printf("\tnetFn: 0x%02x, LUN: 0x%02x\n", req->netFn, req->rsLUN);
 	printf("Data:\n");
-	printf("\trq Slave Addr.: 0x%02x\n", req.rqSA);
-	printf("\trqSeq: 0x%02x, rqLUN: 0x%02x\n", req.rqSEQ, req.rqLUN);
-	printf("\tcmd: 0x%02x\n", req.cmd);
+	printf("\trq Slave Addr.: 0x%02x\n", req->rqSA);
+	printf("\trqSeq: 0x%02x, rqLUN: 0x%02x\n", req->rqSEQ, req->rqLUN);
+	printf("\tcmd: 0x%02x\n", req->cmd);
 	printf("\tData: ");
-	for(i = 0; i < req.datalen; i++) {
-		printf("0x%02x ", req.data[i]);
+	for(i = 0; i < req->datalen; i++) {
+		printf("0x%02x ", req->data[i]);
 	}
 	printf("\n");
-	printf("\tChecksum: 0x%02x (%s)\n", buf[len-1],
-		(buf[len-1] == ipmb_csum(buf+3, len-4)) ? "OK" : "Wrong");
 	printf("<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n");
+}
+#endif
+
+void ipmb_invalid(struct ipmb_resp *resp)
+{
+#if 0
+	static unsigned char cmd_invalid[] = {0xc2};
+
+	resp->data = cmd_invalid;
+	resp->datalen = sizeof(cmd_invalid);
+	ipmb_send(resp);
+#endif
+}
+
+void ipmb_cmd(struct ipmb_req *req)
+{
+	struct ipmb_resp resp;
+	static unsigned char get_devid[] =
+		{IPMB_CC_NORMALLY, 0x42, 0x42, 0x01, 0x01, 0x51, 0xff /* Add. Dev. Supp */, 0x00, 0x00, 0x00, 0x00, 0x00 };
+	static unsigned char get_wd_timer[] =
+		{IPMB_CC_NORMALLY, 0x42, 0x00, 0x00, 0x04, 0xff, 0xff, 0xfe, 0xfe};
+	static unsigned char cc_normal[] =
+		{IPMB_CC_NORMALLY};
+
+	resp.rqSA = req->rqSA;
+	resp.netFn = req->netFn+1;
+	resp.rqLUN = req->rqLUN;
+	resp.rsSA = req->rsSA;
+	resp.rqSEQ = req->rqSEQ;
+	resp.rsLUN = req->rsLUN;
+	resp.cmd = req->cmd;
+
+	switch (req->netFn) {
+		case IPMB_NETFN_CHASSIS:
+			switch (req->cmd) {
+				case IPMB_CHASSIS_CONTROL:
+					chassis_control(*(req->data));
+					resp.data = cc_normal;
+					resp.datalen = sizeof(cc_normal);
+					ipmb_send(&resp);
+					break;
+				default:
+#ifdef DEBUG
+					printf("Unknown chassis cmd 0x%02x\n", req->cmd);
+					ipmb_dump_req(req);
+#endif
+					ipmb_invalid(&resp);
+					break;
+			}
+			break;
+
+		case IPMB_NETFN_SENSOR_EVENT:
+			switch (req->cmd) {
+				default:
+#ifdef DEBUG
+					printf("Unknown sensor cmd 0x%02x\n", req->cmd);
+					ipmb_dump_req(req);
+#endif
+					ipmb_invalid(&resp);
+					break;
+			}
+			break;
+
+		case IPMB_NETFN_APP:
+			switch (req->cmd) {
+				case IPMB_APP_GET_DEVICE_ID:
+					resp.data = get_devid;
+					resp.datalen = sizeof(get_devid);
+					ipmb_send(&resp);
+					break;
+
+				case IPMB_APP_GET_WATCHDOG_TIMER:
+					resp.data = get_wd_timer;
+					resp.datalen = sizeof(get_wd_timer);
+					ipmb_send(&resp);
+					break;
+
+				default:
+#ifdef DEBUG
+					printf("Unknown app cmd 0x%02x\n", req->cmd);
+					ipmb_dump_req(req);
+#endif
+					ipmb_invalid(&resp);
+					break;
+			}
+			break;
+
+		case IPMB_NETFN_STORAGE:
+			switch (req->cmd) {
+				default:
+#ifdef DEBUG
+					printf("Unknown storage cmd 0x%02x\n", req->cmd);
+					ipmb_dump_req(req);
+#endif
+					ipmb_invalid(&resp);
+					break;
+			}
+			break;
+
+		default:
+#ifdef DEBUG
+			printf("Unknown netFn 0x%02x\n", req->netFn);
+			ipmb_dump_req(req);
+#endif
+			ipmb_invalid(&resp);
+			break;
+	}
+}
+
+void decode_ipmb_pkt(unsigned char *buf, int len)
+{
+	struct ipmb_req req;
 
 	if ((buf[2] != ipmb_csum(buf, 2)) ||
-	    (buf[len-1] == ipmb_csum(buf+3, len-4)))
+	    (buf[len-1] != ipmb_csum(buf+3, len-4)))
 		return; /* Checksum wrong */
 
-	//i2c_send((unsigned char*)"\x28\x00",1);
+	req.rsSA = buf[0];
+	req.netFn = (buf[1]>>2)&0x3f;
+	req.rsLUN = (buf[1] & 0x03);
+	req.rqSA = buf[3];
+	req.rqSEQ = (buf[4]>>2)&0x3f;
+	req.rqLUN = (buf[4] & 0x03);
+	req.cmd = buf[5];
+	req.data = buf+6;
+	req.datalen = len - 6 - 1;
+
+	ipmb_cmd(&req);
 }