fw/layer1: Introduce prim_utils.c for shared helper betwee primitives

Currently only share the idle frame pattern.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>

src/target/firmware/include/layer1/prim.h

@@ -7,6 +7,9 @@
 
 struct l1ctl_fbsb_req;
 
+/* Utils */
+const uint8_t *pu_get_idle_frame(void);
+
 /* Primitives tests/requests */
 void l1s_fb_test(uint8_t base_fn, uint8_t fb_mode);
 void l1s_sb_test(uint8_t base_fn);

src/target/firmware/layer1/Makefile

@@ -5,5 +5,5 @@ layer1_SRCS=avg.c agc.c afc.c sync.c tdma_sched.c tpu_window.c init.c l23_api.c
 		mframe_sched.c sched_gsmtime.c async.c rfch.c apc.c
 
 layer1_SRCS += prim_pm.c prim_rach.c prim_tx_nb.c prim_rx_nb.c prim_fbsb.c \
-		prim_freq.c
+		prim_freq.c prim_utils.c
 

src/target/firmware/layer1/prim_tx_nb.c

@@ -53,8 +53,6 @@
 
 static uint32_t last_txnb_fn;
 
-static const uint8_t ubUui[23]     = { 0x01, 0x03, 0x01, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b };
-
 /* p1: type of operation (0: one NB, 1: one RACH burst, 2: four NB */
 static int l1s_tx_resp(__unused uint8_t p1, __unused uint8_t burst_id,
 		       __unused uint16_t p3)
@@ -103,7 +101,7 @@ static int l1s_tx_cmd(uint8_t p1, uint8_t burst_id, uint16_t p3)
 		/* If the TX queue is empty, send idle pattern */
 		if (!msg) {
 			puts("TX idle pattern\n");
-			data = ubUui;
+			data = pu_get_idle_frame();
 		} else {
 			puts("TX uplink msg\n");
 			data = msg->l3h;

src/target/firmware/layer1/prim_utils.c

@@ -0,0 +1,42 @@
+/* Layer 1 Various primitive utilities */
+
+/* (C) 2010 by Sylvain Munaut <tnt@246tNt.com>
+ *
+ * All Rights Reserved
+ *
+ * This program 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.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <stdint.h>
+
+#include <layer1/sync.h>
+
+
+static const uint8_t ubUui[23] = {
+	/* dummy lapdm header */
+	0x01, 0x03, 0x01,
+
+	/* fill bytes */
+	0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+	0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+	0x2b, 0x2b, 0x2b, 0x2b
+};
+
+
+const uint8_t *pu_get_idle_frame(void)
+{
+	return ubUui;
+}