X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=lib%2Fcc-bitbang.h;fp=lib%2Fcc-bitbang.h;h=54b20e2c6a8ef86a8cdddcfe35a79c0c58108c68;hp=0000000000000000000000000000000000000000;hb=2d9b8a83a2d9f495199033e43f519d26f27938fe;hpb=24edd56155ed0fa02fdd8f66fdc7aa5a1021bf7d

diff --git a/lib/cc-bitbang.h b/lib/cc-bitbang.h
new file mode 100644
index 00000000..54b20e2c
--- /dev/null
+++ b/lib/cc-bitbang.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright © 2009 Keith Packard <keithp@keithp.com>
+ *
+ * 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.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#ifndef _CC_BITBANG_H_
+#define _CC_BITBANG_H_
+
+#include <stdint.h>
+
+#define CC_CLOCK	0x1
+#define CC_DATA		0x2
+#define CC_RESET_N	0x4
+#define CC_CLOCK_US	(2)
+
+/* Telemetrum has a 10k pull-up to 3.3v, a 0.001uF cap to ground
+ * and a 2.7k resistor to the reset line. This takes about 6us
+ * to settle, so we'll wait longer than that after changing the reset line
+ */
+#define CC_RESET_US	(12)
+
+struct cc_bitbang;
+
+void
+cc_bitbang_set_clock(uint32_t us);
+
+void
+cc_bitbang_half_clock(struct cc_bitbang *bb);
+
+void
+cc_bitbang_wait_reset(struct cc_bitbang *bb);
+
+struct cc_bitbang *
+cc_bitbang_open(void);
+
+void
+cc_bitbang_close(struct cc_bitbang *bb);
+
+void
+cc_bitbang_debug_mode(struct cc_bitbang *bb);
+
+void
+cc_bitbang_reset(struct cc_bitbang *bb);
+
+int
+cc_bitbang_write(struct cc_bitbang *bb, uint8_t mask, uint8_t value);
+
+void
+cc_bitbang_read(struct cc_bitbang *bb, uint8_t *valuep);
+
+void
+cc_bitbang_sync(struct cc_bitbang *bb);
+
+void
+cc_bitbang_print(char *format, uint8_t mask, uint8_t set);
+
+void
+cc_bitbang_print(char *format, uint8_t mask, uint8_t set);
+
+void
+cc_bitbang_send(struct cc_bitbang *bb, uint8_t mask, uint8_t set);
+
+void
+cc_bitbang_send_bit(struct cc_bitbang *bb, uint8_t bit);
+
+void
+cc_bitbang_send_byte(struct cc_bitbang *bb, uint8_t byte);
+
+void
+cc_bitbang_send_bytes(struct cc_bitbang *bb, uint8_t *bytes, int nbytes);
+
+void
+cc_bitbang_recv_bit(struct cc_bitbang *bb, int first, uint8_t *bit);
+
+void
+cc_bitbang_recv_byte(struct cc_bitbang *bb, int first, uint8_t *bytep);
+
+void
+cc_bitbang_recv_bytes(struct cc_bitbang *bb, uint8_t *bytes, int nbytes);
+
+#endif /* _CC_BITBANG_H_ */