Allow to exclude each of the external programmer drivers from being compiled in

Example make commandline if you want only internal programmers:
make CONFIG_FT2232SPI=no CONFIG_SERPROG=no CONFIG_NIC3COM=no
CONFIG_SATASII=no CONFIG_DRKAISER=no CONFIG_DUMMY=no

Of course, all of the CONFIG_* symbols can be mixed and matched as
needed. CONFIG_FT2232SPI is special because even if it is enabled, make
will check if the headers are available and skip it otherwise.

Corresponding to flashrom svn r724.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Reinauer <stepan@coresystems.de>

6 files changed, 97 insertions, 17 deletions

diff --git a/Makefile b/Makefile
index 0a6eb79..1b50d87 100644
--- a/Makefile
+++ b/Makefile
@@ -49,8 +49,7 @@ OBJS = chipset_enable.o board_enable.o udelay.o jedec.o stm50flw0x0x.o \
 	sst49lfxxxc.o sst_fwhub.o layout.o cbtable.o flashchips.o physmap.o \
 	flashrom.o w39v080fa.o sharplhf00l04.o w29ee011.o spi.o it87spi.o \
 	ichspi.o w39v040c.o sb600spi.o wbsio_spi.o m29f002.o internal.o \
-	dummyflasher.o pcidev.o nic3com.o satasii.o ft2232_spi.o \
-	print.o drkaiser.o
+	pcidev.o print.o
 
 all: pciutils features dep $(PROGRAM)
 
@@ -67,7 +66,22 @@ RELEASENAME ?= $(VERSION)
 SVNDEF := -D'FLASHROM_VERSION="$(VERSION)"'
 
 # Always enable serprog for now. Needs to be disabled on Windows.
-CONFIG_SERPROG = yes
+CONFIG_SERPROG ?= yes
+
+# Always enable 3Com NICs for now.
+CONFIG_NIC3COM ?= yes
+
+# Always enable SiI SATA controllers for now.
+CONFIG_SATASII ?= yes
+
+# Always enable FT2232 SPI dongles for now.
+CONFIG_FT2232SPI ?= yes
+
+# Always enable dummy tracing for now.
+CONFIG_DUMMY ?= yes
+
+# Always enable Dr. Kaiser for now.
+CONFIG_DRKAISER ?= yes
 
 ifeq ($(CONFIG_SERPROG), yes)
 FEATURE_CFLAGS += -D'SERPROG_SUPPORT=1'
@@ -77,9 +91,32 @@ LIBS += -lsocket
 endif
 endif
 
-FEATURE_CFLAGS += $(shell LC_ALL=C grep -q "FTDISUPPORT := yes" .features && printf "%s" "-D'FT2232_SPI_SUPPORT=1'")
+ifeq ($(CONFIG_NIC3COM), yes)
+FEATURE_CFLAGS += -D'NIC3COM_SUPPORT=1'
+OBJS += nic3com.o
+endif
 
+ifeq ($(CONFIG_SATASII), yes)
+FEATURE_CFLAGS += -D'SATASII_SUPPORT=1'
+OBJS += satasii.o
+endif
+
+ifeq ($(CONFIG_FT2232SPI), yes)
+# This is a totally ugly hack.
+FEATURE_CFLAGS += $(shell LC_ALL=C grep -q "FTDISUPPORT := yes" .features && printf "%s" "-D'FT2232_SPI_SUPPORT=1'")
 FEATURE_LIBS += $(shell LC_ALL=C grep -q "FTDISUPPORT := yes" .features && printf "%s" "-lftdi")
+OBJS += ft2232_spi.o
+endif
+
+ifeq ($(CONFIG_DUMMY), yes)
+FEATURE_CFLAGS += -D'DUMMY_SUPPORT=1'
+OBJS += dummyflasher.o
+endif
+
+ifeq ($(CONFIG_DRKAISER), yes)
+FEATURE_CFLAGS += -D'DRKAISER_SUPPORT=1'
+OBJS += drkaiser.o
+endif
 
 $(PROGRAM): $(OBJS)
 	$(CC) $(LDFLAGS) -o $(PROGRAM) $(OBJS) $(LIBS) $(FEATURE_LIBS)
diff --git a/flash.h b/flash.h
index dce0e41..2a54806 100644
--- a/flash.h
+++ b/flash.h
@@ -82,10 +82,18 @@ typedef unsigned long chipaddr;
 
 enum programmer {
 	PROGRAMMER_INTERNAL,
+#if DUMMY_SUPPORT == 1
 	PROGRAMMER_DUMMY,
+#endif
+#if NIC3COM_SUPPORT == 1
 	PROGRAMMER_NIC3COM,
+#endif
+#if DRKAISER_SUPPORT == 1
 	PROGRAMMER_DRKAISER,
+#endif
+#if SATASII_SUPPORT == 1
 	PROGRAMMER_SATASII,
+#endif
 	PROGRAMMER_IT87SPI,
 #if FT2232_SPI_SUPPORT == 1
 	PROGRAMMER_FT2232SPI,
@@ -375,10 +383,11 @@ uint8_t mmio_readb(void *addr);
 uint16_t mmio_readw(void *addr);
 uint32_t mmio_readl(void *addr);
 void internal_delay(int usecs);
-int fallback_shutdown(void);
+int noop_shutdown(void);
 void *fallback_map(const char *descr, unsigned long phys_addr, size_t len);
 void fallback_unmap(void *virt_addr, size_t len);
-void fallback_chip_writeb(uint8_t val, chipaddr addr);
+uint8_t noop_chip_readb(const chipaddr addr);
+void noop_chip_writeb(uint8_t val, chipaddr addr);
 void fallback_chip_writew(uint16_t val, chipaddr addr);
 void fallback_chip_writel(uint32_t val, chipaddr addr);
 void fallback_chip_writen(uint8_t *buf, chipaddr addr, size_t len);
@@ -474,7 +483,9 @@ enum spi_controller {
 #if FT2232_SPI_SUPPORT == 1
 	SPI_CONTROLLER_FT2232,
 #endif
+#if DUMMY_SUPPORT == 1
 	SPI_CONTROLLER_DUMMY,
+#endif
 	SPI_CONTROLLER_INVALID /* This must always be the last entry. */
 };
 extern const int spi_programmer_count;
diff --git a/flashrom.c b/flashrom.c
index 6c03d93..fc69f25 100644
--- a/flashrom.c
+++ b/flashrom.c
@@ -54,6 +54,7 @@ const struct programmer_entry programmer_table[] = {
 		.delay			= internal_delay,
 	},
 
+#if DUMMY_SUPPORT == 1
 	{
 		.name			= "dummy",
 		.init			= dummy_init,
@@ -70,7 +71,9 @@ const struct programmer_entry programmer_table[] = {
 		.chip_writen		= dummy_chip_writen,
 		.delay			= internal_delay,
 	},
+#endif
 
+#if NIC3COM_SUPPORT == 1
 	{
 		.name			= "nic3com",
 		.init			= nic3com_init,
@@ -87,7 +90,9 @@ const struct programmer_entry programmer_table[] = {
 		.chip_writen		= fallback_chip_writen,
 		.delay			= internal_delay,
 	},
+#endif
 
+#if DRKAISER_SUPPORT == 1
 	{
 		.name			= "drkaiser",
 		.init			= drkaiser_init,
@@ -104,7 +109,9 @@ const struct programmer_entry programmer_table[] = {
 		.chip_writen		= fallback_chip_writen,
 		.delay			= internal_delay,
 	},
+#endif
 
+#if SATASII_SUPPORT == 1
 	{
 		.name			= "satasii",
 		.init			= satasii_init,
@@ -121,18 +128,19 @@ const struct programmer_entry programmer_table[] = {
 		.chip_writen		= fallback_chip_writen,
 		.delay			= internal_delay,
 	},
+#endif
 
 	{
 		.name			= "it87spi",
 		.init			= it87spi_init,
-		.shutdown		= fallback_shutdown,
+		.shutdown		= noop_shutdown,
 		.map_flash_region	= fallback_map,
 		.unmap_flash_region	= fallback_unmap,
-		.chip_readb		= dummy_chip_readb,
+		.chip_readb		= noop_chip_readb,
 		.chip_readw		= fallback_chip_readw,
 		.chip_readl		= fallback_chip_readl,
 		.chip_readn		= fallback_chip_readn,
-		.chip_writeb		= fallback_chip_writeb,
+		.chip_writeb		= noop_chip_writeb,
 		.chip_writew		= fallback_chip_writew,
 		.chip_writel		= fallback_chip_writel,
 		.chip_writen		= fallback_chip_writen,
@@ -143,14 +151,14 @@ const struct programmer_entry programmer_table[] = {
 	{
 		.name			= "ft2232spi",
 		.init			= ft2232_spi_init,
-		.shutdown		= fallback_shutdown,
+		.shutdown		= noop_shutdown, /* Missing shutdown */
 		.map_flash_region	= fallback_map,
 		.unmap_flash_region	= fallback_unmap,
-		.chip_readb		= dummy_chip_readb,
+		.chip_readb		= noop_chip_readb,
 		.chip_readw		= fallback_chip_readw,
 		.chip_readl		= fallback_chip_readl,
 		.chip_readn		= fallback_chip_readn,
-		.chip_writeb		= fallback_chip_writeb,
+		.chip_writeb		= noop_chip_writeb,
 		.chip_writew		= fallback_chip_writew,
 		.chip_writel		= fallback_chip_writel,
 		.chip_writen		= fallback_chip_writen,
@@ -793,9 +801,15 @@ int main(int argc, char *argv[])
 		print_supported_boards();
 		printf("\nSupported PCI devices flashrom can use "
 		       "as programmer:\n\n");
+#if NIC3COM_SUPPORT == 1
 		print_supported_pcidevs(nics_3com);
+#endif
+#if DRKAISER_SUPPORT == 1
 		print_supported_pcidevs(drkaiser_pcidev);
+#endif
+#if SATASII_SUPPORT == 1
 		print_supported_pcidevs(satas_sii);
+#endif
 		exit(0);
 	}
 
diff --git a/internal.c b/internal.c
index a3b2ae5..ea12bbc 100644
--- a/internal.c
+++ b/internal.c
@@ -222,8 +222,8 @@ void internal_delay(int usecs)
 	}
 }
 
-/* Fallback shutdown() for programmers which don't need special handling */
-int fallback_shutdown(void)
+/* No-op shutdown() for programmers which don't need special handling */
+int noop_shutdown(void)
 {
 	return 0;
 }
@@ -231,16 +231,23 @@ int fallback_shutdown(void)
 /* Fallback map() for programmers which don't need special handling */
 void *fallback_map(const char *descr, unsigned long phys_addr, size_t len)
 {
+	/* FIXME: Should return phys_addr. */
 	return 0;
 }
 
-/* Fallback unmap() for programmers which don't need special handling */
+/* No-op/fallback unmap() for programmers which don't need special handling */
 void fallback_unmap(void *virt_addr, size_t len)
 {
 }
 
-/* No-op fallback for drivers not supporting addr/data pair accesses */
-void fallback_chip_writeb(uint8_t val, chipaddr addr)
+/* No-op chip_writeb() for drivers not supporting addr/data pair accesses */
+uint8_t noop_chip_readb(const chipaddr addr)
+{
+	return 0xff;
+}
+
+/* No-op chip_writeb() for drivers not supporting addr/data pair accesses */
+void noop_chip_writeb(uint8_t val, chipaddr addr)
 {
 }
 
diff --git a/print.c b/print.c
index ce46e1b..a86ea05 100644
--- a/print.c
+++ b/print.c
@@ -731,8 +731,15 @@ void print_wiki_tables(void)
 	print_supported_chipsets_wiki();
 	print_supported_boards_wiki();
 	printf("%s", programmer_section);
+#if NIC3COM_SUPPORT == 1
 	print_supported_pcidevs_wiki(nics_3com);
+#endif
+#if DRKAISER_SUPPORT == 1
+	/* FIXME: drkaiser_pcidev is missing here. */
+#endif
+#if SATASII_SUPPORT == 1
 	print_supported_pcidevs_wiki(satas_sii);
+#endif
 	printf("\n|}\n");
 }
 
diff --git a/spi.c b/spi.c
index 86ffe69..73709f2 100644
--- a/spi.c
+++ b/spi.c
@@ -91,12 +91,14 @@ const struct spi_programmer spi_programmer[] = {
 	},
 #endif
 
+#if DUMMY_SUPPORT == 1
 	{ /* SPI_CONTROLLER_DUMMY */
 		.command = dummy_spi_send_command,
 		.multicommand = default_spi_send_multicommand,
 		.read = NULL,
 		.write_256 = NULL,
 	},
+#endif
 
 	{}, /* This entry corresponds to SPI_CONTROLLER_INVALID. */
 };
@@ -301,7 +303,9 @@ int probe_spi_rdid4(struct flashchip *flash)
 #if FT2232_SPI_SUPPORT == 1
 	case SPI_CONTROLLER_FT2232:
 #endif
+#if DUMMY_SUPPORT == 1
 	case SPI_CONTROLLER_DUMMY:
+#endif
 		return probe_spi_rdid_generic(flash, 4);
 	default:
 		printf_debug("4b ID not supported on this SPI controller\n");