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-rw-r--r--src/ao_cmd.c318
1 files changed, 318 insertions, 0 deletions
diff --git a/src/ao_cmd.c b/src/ao_cmd.c
new file mode 100644
index 00000000..33619b24
--- /dev/null
+++ b/src/ao_cmd.c
@@ -0,0 +1,318 @@
+/*
+ * 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; version 2 of the License.
+ *
+ * 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.
+ */
+
+#include "ao.h"
+
+__xdata uint16_t ao_cmd_lex_i;
+__xdata char ao_cmd_lex_c;
+__xdata enum ao_cmd_status ao_cmd_status;
+static __xdata uint8_t lex_echo;
+
+#define CMD_LEN 32
+
+static __xdata char cmd_line[CMD_LEN];
+static __xdata uint8_t cmd_len;
+static __xdata uint8_t cmd_i;
+
+static void
+put_string(char *s)
+{
+ __xdata char c;
+ while (c = *s++)
+ putchar(c);
+}
+
+static void
+readline(void)
+{
+ __xdata char c;
+ if (lex_echo)
+ put_string("> ");
+ cmd_len = 0;
+ for (;;) {
+ flush();
+ c = getchar();
+ /* backspace/delete */
+ if (c == '\010' || c == '\177') {
+ if (cmd_len != 0) {
+ if (lex_echo)
+ put_string("\010 \010");
+ --cmd_len;
+ }
+ continue;
+ }
+
+ /* ^U */
+ if (c == '\025') {
+ while (cmd_len != 0) {
+ if (lex_echo)
+ put_string("\010 \010");
+ --cmd_len;
+ }
+ continue;
+ }
+
+ /* map CR to NL */
+ if (c == '\r')
+ c = '\n';
+
+ if (c == '\n') {
+ if (lex_echo)
+ putchar('\n');
+ break;
+ }
+
+ if (cmd_len >= CMD_LEN - 2) {
+ if (lex_echo)
+ putchar('\007');
+ continue;
+ }
+ cmd_line[cmd_len++] = c;
+ if (lex_echo)
+ putchar(c);
+ }
+ cmd_line[cmd_len++] = '\n';
+ cmd_line[cmd_len++] = '\0';
+ cmd_i = 0;
+}
+
+void
+ao_cmd_lex(void)
+{
+ ao_cmd_lex_c = '\n';
+ if (cmd_i < cmd_len)
+ ao_cmd_lex_c = cmd_line[cmd_i++];
+}
+
+static void
+putnibble(uint8_t v)
+{
+ if (v < 10)
+ putchar(v + '0');
+ else
+ putchar(v + ('a' - 10));
+}
+
+void
+ao_cmd_put16(uint16_t v)
+{
+ int8_t i;
+ for (i = 3; i >= 0; i--)
+ putnibble((v >> (i << 2)) & 0xf);
+}
+
+void
+ao_cmd_put8(uint8_t v)
+{
+ putnibble((v >> 4) & 0xf);
+ putnibble(v & 0xf);
+}
+
+void
+ao_cmd_white(void)
+{
+ while (ao_cmd_lex_c == ' ' || ao_cmd_lex_c == '\t')
+ ao_cmd_lex();
+}
+
+void
+ao_cmd_hex(void)
+{
+ __xdata uint8_t r = ao_cmd_lex_error;
+
+ ao_cmd_lex_i = 0;
+ ao_cmd_white();
+ for(;;) {
+ if ('0' <= ao_cmd_lex_c && ao_cmd_lex_c <= '9')
+ ao_cmd_lex_i = (ao_cmd_lex_i << 4) | (ao_cmd_lex_c - '0');
+ else if ('a' <= ao_cmd_lex_c && ao_cmd_lex_c <= 'f')
+ ao_cmd_lex_i = (ao_cmd_lex_i << 4) | (ao_cmd_lex_c - 'a' + 10);
+ else if ('A' <= ao_cmd_lex_c && ao_cmd_lex_c <= 'F')
+ ao_cmd_lex_i = (ao_cmd_lex_i << 4) | (ao_cmd_lex_c - 'A' + 10);
+ else
+ break;
+ r = ao_cmd_success;
+ ao_cmd_lex();
+ }
+ if (r != ao_cmd_success)
+ ao_cmd_status = r;
+}
+
+void
+ao_cmd_decimal(void)
+{
+ __xdata uint8_t r = ao_cmd_lex_error;
+
+ ao_cmd_lex_i = 0;
+ ao_cmd_white();
+ for(;;) {
+ if ('0' <= ao_cmd_lex_c && ao_cmd_lex_c <= '9')
+ ao_cmd_lex_i = (ao_cmd_lex_i * 10) + (ao_cmd_lex_c - '0');
+ else
+ break;
+ r = ao_cmd_success;
+ ao_cmd_lex();
+ }
+ if (r != ao_cmd_success)
+ ao_cmd_status = r;
+}
+
+static void
+eol(void)
+{
+ while (ao_cmd_lex_c != '\n')
+ ao_cmd_lex();
+}
+
+static void
+dump(void)
+{
+ __xdata uint16_t c;
+ __xdata uint8_t * __xdata start, * __xdata end;
+
+ ao_cmd_hex();
+ start = (uint8_t __xdata *) ao_cmd_lex_i;
+ ao_cmd_hex();
+ end = (uint8_t __xdata *) ao_cmd_lex_i;
+ if (ao_cmd_status != ao_cmd_success)
+ return;
+ c = 0;
+ while (start <= end) {
+ if ((c & 7) == 0) {
+ if (c)
+ putchar('\n');
+ ao_cmd_put16((uint16_t) start);
+ }
+ putchar(' ');
+ ao_cmd_put8(*start);
+ ++c;
+ start++;
+ }
+ putchar('\n');
+}
+
+static void
+echo(void)
+{
+ ao_cmd_hex();
+ lex_echo = ao_cmd_lex_i != 0;
+}
+
+static void
+version(void)
+{
+ printf("manufacturer %s\n", ao_manufacturer);
+ printf("product %s\n", ao_product);
+ printf("serial-number %u\n", ao_serial_number);
+ printf("software-version %s\n", ao_version);
+}
+
+static const char help_txt[] = "All numbers are in hex";
+
+#define NUM_CMDS 11
+
+static __code struct ao_cmds *__xdata (ao_cmds[NUM_CMDS]);
+static __xdata uint8_t ao_ncmds;
+
+static void
+help(void)
+{
+ __xdata uint8_t cmds;
+ __xdata uint8_t cmd;
+ __code struct ao_cmds * __xdata cs;
+ puts(help_txt);
+ for (cmds = 0; cmds < ao_ncmds; cmds++) {
+ cs = ao_cmds[cmds];
+ for (cmd = 0; cs[cmd].cmd != '\0'; cmd++)
+ puts(cs[cmd].help);
+ }
+}
+
+static void
+report(void)
+{
+ switch(ao_cmd_status) {
+ case ao_cmd_lex_error:
+ case ao_cmd_syntax_error:
+ puts("Syntax error");
+ ao_cmd_status = 0;
+ break;
+ }
+}
+
+void
+ao_cmd_register(__code struct ao_cmds *cmds)
+{
+ if (ao_ncmds >= NUM_CMDS)
+ ao_panic(AO_PANIC_CMD);
+ ao_cmds[ao_ncmds++] = cmds;
+}
+
+void
+ao_cmd(void *parameters)
+{
+ __xdata char c;
+ __xdata uint8_t cmd, cmds;
+ __code struct ao_cmds * __xdata cs;
+ void (*__xdata func)(void);
+ (void) parameters;
+
+ lex_echo = 1;
+ for (;;) {
+ readline();
+ ao_cmd_lex();
+ ao_cmd_white();
+ c = ao_cmd_lex_c;
+ ao_cmd_lex();
+ if (c == '\r' || c == '\n')
+ continue;
+ func = (void (*)(void)) NULL;
+ for (cmds = 0; cmds < ao_ncmds; cmds++) {
+ cs = ao_cmds[cmds];
+ for (cmd = 0; cs[cmd].cmd != '\0'; cmd++)
+ if (cs[cmd].cmd == c) {
+ func = cs[cmd].func;
+ break;
+ }
+ if (func)
+ break;
+ }
+ if (func)
+ (*func)();
+ else
+ ao_cmd_status = ao_cmd_syntax_error;
+ report();
+ }
+}
+
+__xdata struct ao_task ao_cmd_task;
+
+__code struct ao_cmds ao_base_cmds[] = {
+ { '?', help, "? Print this message" },
+ { 'T', ao_task_info, "T Show task states" },
+ { 'E', echo, "E <0 off, 1 on> Set command echo mode" },
+ { 'd', dump, "d <start> <end> Dump memory" },
+ { 'v', version, "v Show version" },
+ { 0, help, NULL },
+};
+
+void
+ao_cmd_init(void)
+{
+ ao_cmd_register(&ao_base_cmds[0]);
+ ao_add_task(&ao_cmd_task, ao_cmd, "cmd");
+}
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