whiterabbit: arch-wrs and arch-wrpc can't be build without WR support

This was a trial of mine, but it really has never been working (at least
on wrs -- I think nobody ever tried a non-wr code base on wrpc).

Too much of the timetamping, servo, pll, is dependent on WR being
available, this academic idea doesn't make much sense, so let's remove
a number of conditionals (and associated potential bugs).

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Kconfig

@@ -68,23 +68,14 @@ config ARCH
        default "sim" if ARCH_SIMULATOR
 
 
-
-choice EXTENSION
-	prompt "Protocol Extension"
-
+# This is not a choice any more: it is mandated by the architecture
 config EXT_WR
-	bool "White Rabbit" if ARCH_WRS || ARCH_WRPC
-	help
-	  Build WR-PTP (which is able to works as a standard PTP agent,
-	  when the peer is not WR-aware).
+	bool
+	default y if ARCH_WRS || ARCH_WRPC
 
 config EXT_NONE
-	bool "None"
-	default y
-	help
-	  Select not protocol extension (build standard PTP-V2 daemon).
-
-endchoice
+	bool
+	default !EXT_WR
 
 config EXTENSION
        string

arch-wrs/Makefile

@@ -19,8 +19,9 @@ OBJ-y += $A/wrs-startup.o \
 	lib/drop.o \
 	lib/div64.o
 
-# The user can set TIME=, but wrs is default
-TIME ?= wrs
+# These two are mandatory for arch-wrs
+TIME = wrs
+PROTO_EXT = whiterabbit
 
 include time-$(TIME)/Makefile
 

arch-wrs/include/ppsi-wrs.h

@@ -4,12 +4,6 @@
  *
  * Released to the public domain
  */
-#ifdef CONFIG_EXT_WR
-#  define BUILT_WITH_WHITERABBIT 1
-#else
-#  define BUILT_WITH_WHITERABBIT 0
-#endif
-
 
 /*
  * These are the functions provided by the various wrs files

arch-wrs/main-loop.c

@@ -56,8 +56,7 @@ static int run_all_state_machines(struct pp_globals *ppg)
 				ppi->n_ops->exit(ppi);
 				ppi->frgn_rec_num = 0;
 				ppi->frgn_rec_best = -1;
-				if (BUILT_WITH_WHITERABBIT
-				    && ppg->ebest_idx == ppi->port_idx)
+				if (ppg->ebest_idx == ppi->port_idx)
 					wr_servo_reset();
 			}
 		}

arch-wrs/wrs-ipcserver.c

@@ -28,13 +28,11 @@ static struct minipc_pd __rpcdef_cmd = {
 /* Execute command coming ipc */
 static int wrsipc_cmd(int cmd, int value)
 {
-	if (BUILT_WITH_WHITERABBIT) {
-		if(cmd == PTPDEXP_COMMAND_TRACKING)
-			wr_servo_enable_tracking(value);
+	if(cmd == PTPDEXP_COMMAND_TRACKING)
+		wr_servo_enable_tracking(value);
 
-		if(cmd == PTPDEXP_COMMAND_MAN_ADJUST_PHASE)
-			wr_servo_man_adjust_phase(value);
-	}
+	if(cmd == PTPDEXP_COMMAND_MAN_ADJUST_PHASE)
+		wr_servo_man_adjust_phase(value);
 	return 0;
 
 }

arch-wrs/wrs-startup.c

@@ -26,11 +26,7 @@
 #include <ppsi-wrs.h>
 #include <libwr/shmem.h>
 
-#if BUILT_WITH_WHITERABBIT
 #  define WRSW_HAL_RETRIES 1000
-#else
-#  define WRSW_HAL_RETRIES 0
-#endif
 
 #define WRSW_HAL_TIMEOUT 2000000 /* us */
 
@@ -100,55 +96,53 @@ int main(int argc, char **argv)
 		usleep(WRSW_HAL_TIMEOUT);
 	}
 
-	if (BUILT_WITH_WHITERABBIT && !hal_ch) {
+	if (!hal_ch) {
 		pp_printf("ppsi: could not connect to HAL RPC");
 		exit(1);
 	}
 
-	if (BUILT_WITH_WHITERABBIT) {
-		/* If we connected, we also know "for sure" shmem is there */
-		hal_head = wrs_shm_get(wrs_shm_hal,"", WRS_SHM_READ);
-		if (!hal_head || !hal_head->data_off) {
-			pp_printf("ppsi: Can't connect with HAL "
-				  "shared memory\n");
-			exit(1);
-		}
-		if (hal_head->version != HAL_SHMEM_VERSION) {
-			pp_printf("ppsi: unknown HAL's shm version %i "
-				"(known is %i)\n", hal_head->version,
-				HAL_SHMEM_VERSION);
-			exit(1);
-		}
+	/* If we connected, we also know "for sure" shmem is there */
+	hal_head = wrs_shm_get(wrs_shm_hal,"", WRS_SHM_READ);
+	if (!hal_head || !hal_head->data_off) {
+		pp_printf("ppsi: Can't connect with HAL "
+			  "shared memory\n");
+		exit(1);
+	}
+	if (hal_head->version != HAL_SHMEM_VERSION) {
+		pp_printf("ppsi: unknown HAL's shm version %i "
+			  "(known is %i)\n", hal_head->version,
+			  HAL_SHMEM_VERSION);
+		exit(1);
+	}
 
-		h = (void *)hal_head + hal_head->data_off;
-		hal_nports = h->nports;
+	h = (void *)hal_head + hal_head->data_off;
+	hal_nports = h->nports;
 
-		hal_ports = wrs_shm_follow(hal_head, h->ports);
+	hal_ports = wrs_shm_follow(hal_head, h->ports);
 
-		if (!hal_ports) {
-			pp_printf("ppsi: unable to follow hal_ports pointer "
-				  "in HAL's shmem\n");
-			exit(1);
-		}
+	if (!hal_ports) {
+		pp_printf("ppsi: unable to follow hal_ports pointer "
+			  "in HAL's shmem\n");
+		exit(1);
+	}
 
-		/* And create your own channel, until we move to shmem too */
-		ppsi_ch = minipc_server_create("ptpd", 0);
-		if (!ppsi_ch) { /* FIXME should we retry ? */
-			pp_printf("ppsi: could not create minipc server");
-			exit(1);
-		}
-		wrs_init_ipcserver(ppsi_ch);
+	/* And create your own channel, until we move to shmem too */
+	ppsi_ch = minipc_server_create("ptpd", 0);
+	if (!ppsi_ch) { /* FIXME should we retry ? */
+		pp_printf("ppsi: could not create minipc server");
+		exit(1);
+	}
+	wrs_init_ipcserver(ppsi_ch);
 
-		ppsi_head = wrs_shm_get(wrs_shm_ptp, "ppsi",
-					WRS_SHM_WRITE | WRS_SHM_LOCKED);
-		if (!ppsi_head) {
-			fprintf(stderr, "Fatal: could not create shmem: %s\n",
-				strerror(errno));
-			exit(1);
-		}
-		alloc_fn = wrs_shm_alloc;
-		ppsi_head->version = WRS_PPSI_SHMEM_VERSION;
+	ppsi_head = wrs_shm_get(wrs_shm_ptp, "ppsi",
+				WRS_SHM_WRITE | WRS_SHM_LOCKED);
+	if (!ppsi_head) {
+		fprintf(stderr, "Fatal: could not create shmem: %s\n",
+			strerror(errno));
+		exit(1);
 	}
+	alloc_fn = wrs_shm_alloc;
+	ppsi_head->version = WRS_PPSI_SHMEM_VERSION;
 
 	ppg = alloc_fn(ppsi_head, sizeof(*ppg));
 	ppg->defaultDS = alloc_fn(ppsi_head, sizeof(*ppg->defaultDS));
@@ -243,8 +237,7 @@ int main(int argc, char **argv)
 	ppsi_drop_init(ppg, seed);
 
 	/* release lock from wrs_shm_get */
-	if (BUILT_WITH_WHITERABBIT)
-		wrs_shm_write(ppsi_head, WRS_SHM_WRITE_END);
+	wrs_shm_write(ppsi_head, WRS_SHM_WRITE_END);
 
 	wrs_main_loop(ppg);
 	return 0; /* never reached */

configs/wrpc-nonwr_defconfig

-#
-# Automatically generated make config: don't edit
-#
-# CONFIG_ARCH_UNIX is not set
-# CONFIG_ARCH_BARE_I386 is not set
-# CONFIG_ARCH_BARE_X86_64 is not set
-CONFIG_ARCH_WRPC=y
-# CONFIG_ARCH_WRS is not set
-CONFIG_ARCH="wrpc"
-# CONFIG_EXT_WR is not set
-CONFIG_EXT_NONE=y
-CONFIG_EXTENSION=""
-CONFIG_CROSS_COMPILE="/opt/gcc-lm32/bin/lm32-elf-"
-CONFIG_ARCH_CFLAGS=""
-CONFIG_ARCH_LDFLAGS=""

configs/wrs-nonwr_defconfig

-#
-# Automatically generated make config: don't edit
-#
-# CONFIG_ARCH_UNIX is not set
-# CONFIG_ARCH_BARE_I386 is not set
-# CONFIG_ARCH_BARE_X86_64 is not set
-# CONFIG_ARCH_WRPC is not set
-CONFIG_ARCH_WRS=y
-CONFIG_ARCH="wrs"
-# CONFIG_EXT_WR is not set
-CONFIG_EXT_NONE=y
-CONFIG_EXTENSION=""
-CONFIG_CROSS_COMPILE="/opt/arm-wrswitch/bin/arm-linux-"
-CONFIG_ARCH_CFLAGS=""
-CONFIG_ARCH_LDFLAGS=""