Move generic programmer function into newly introduced programmer.c

Some programmers (most notably FT2232SPI) use fallback_* and noop_*,
but those functions lived inside internal.c and were unavailable if no
PCI-based programmers were compiled in.

Move those functions to the new file programmer.c. Thanks to Patrick
Georgi for finding this.

Corresponding to flashrom svn r829.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>

1 files changed, 99 insertions, 0 deletions

diff --git a/programmer.c b/programmer.c
new file mode 100644
index 0000000..ca641e1
--- /dev/null
+++ b/programmer.c
@@ -0,0 +1,99 @@
+/*
+ * This file is part of the flashrom project.
+ *
+ * Copyright (C) 2009,2010 Carl-Daniel Hailfinger
+ *
+ * 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 St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include <stdlib.h>
+#include "flash.h"
+
+/* No-op shutdown() for programmers which don't need special handling */
+int noop_shutdown(void)
+{
+	return 0;
+}
+
+/* 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;
+}
+
+/* No-op/fallback unmap() for programmers which don't need special handling */
+void fallback_unmap(void *virt_addr, size_t len)
+{
+}
+
+/* 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)
+{
+}
+
+/* Little-endian fallback for drivers not supporting 16 bit accesses */
+void fallback_chip_writew(uint16_t val, chipaddr addr)
+{
+	chip_writeb(val & 0xff, addr);
+	chip_writeb((val >> 8) & 0xff, addr + 1);
+}
+
+/* Little-endian fallback for drivers not supporting 16 bit accesses */
+uint16_t fallback_chip_readw(const chipaddr addr)
+{
+	uint16_t val;
+	val = chip_readb(addr);
+	val |= chip_readb(addr + 1) << 8;
+	return val;
+}
+
+/* Little-endian fallback for drivers not supporting 32 bit accesses */
+void fallback_chip_writel(uint32_t val, chipaddr addr)
+{
+	chip_writew(val & 0xffff, addr);
+	chip_writew((val >> 16) & 0xffff, addr + 2);
+}
+
+/* Little-endian fallback for drivers not supporting 32 bit accesses */
+uint32_t fallback_chip_readl(const chipaddr addr)
+{
+	uint32_t val;
+	val = chip_readw(addr);
+	val |= chip_readw(addr + 2) << 16;
+	return val;
+}
+
+void fallback_chip_writen(uint8_t *buf, chipaddr addr, size_t len)
+{
+	size_t i;
+	for (i = 0; i < len; i++)
+		chip_writeb(buf[i], addr + i);
+	return;
+}
+
+void fallback_chip_readn(uint8_t *buf, chipaddr addr, size_t len)
+{
+	size_t i;
+	for (i = 0; i < len; i++)
+		buf[i] = chip_readb(addr + i);
+	return;
+}