altos: Call ao_task_init before initializing any drivers

[fw/altos] / src / stm-flash / ao_stm_flash.c

diff --git a/src/stm-flash/ao_stm_flash.c b/src/stm-flash/ao_stm_flash.c
new file mode 100644 (file)
index 0000000..df466d8
--- /dev/null
+++ b/src/stm-flash/ao_stm_flash.c
@@ -0,0 +1,137 @@
+/*
+ * Copyright © 2011 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"
+#include <ao_exti.h>
+#include <ao_boot.h>
+#include <ao_flash_stm.h>
+
+void
+ao_panic(uint8_t reason)
+{
+       for (;;);
+}
+
+void
+ao_application(void)
+{
+       ao_boot_reboot(AO_BOOT_APPLICATION_BASE);
+}
+
+static uint32_t
+ao_cmd_hex32(void)
+{
+       __pdata uint8_t r = ao_cmd_lex_error;
+       int8_t  n;
+       uint32_t v = 0;
+
+       ao_cmd_white();
+       for(;;) {
+               n = ao_cmd_hexchar(ao_cmd_lex_c);
+               if (n < 0)
+                       break;
+               v = (v << 4) | n;
+               r = ao_cmd_success;
+               ao_cmd_lex();
+       }
+       if (r != ao_cmd_success)
+               ao_cmd_status = r;
+       return v;
+}
+
+void
+ao_block_erase(void)
+{
+       uint32_t        addr = ao_cmd_hex32();
+       uint32_t        *p = (uint32_t *) addr;
+
+       ao_flash_erase_page(p);
+}
+
+void
+ao_block_write(void)
+{
+       uint32_t        addr = ao_cmd_hex32();
+       uint32_t        *p = (uint32_t *) addr;
+       union {
+               uint8_t         data8[256];
+               uint32_t        data32[64];
+       } u;
+       uint16_t        i;
+
+       if (addr < 0x08002000 || 0x08200000 <= addr) {
+               puts("Invalid address");
+               return;
+       }
+       for (i = 0; i < 256; i++)
+               u.data8[i] = i;
+       ao_flash_page(p, u.data32);
+}
+
+static void
+puthex(uint8_t c)
+{
+       c &= 0xf;
+       if (c < 10)
+               c += '0';
+       else
+               c += 'a' - 10;
+       putchar (c);
+}
+
+void
+ao_block_read(void)
+{
+       uint32_t        addr = ao_cmd_hex32();
+       uint8_t         *p = (uint8_t *) addr;
+       uint16_t        i;
+       uint8_t         c;
+
+       for (i = 0; i < 256; i++) {
+               c = *p++;
+               puthex(c);
+               puthex(c>>4);
+               if ((i & 0xf) == 0xf)
+                       putchar('\n');
+       }
+}
+
+__code struct ao_cmds ao_flash_cmds[] = {
+       { ao_application, "a\0Switch to application" },
+       { ao_block_erase, "e <addr>\0Erase block." },
+       { ao_block_write, "W <addr>\0Write block. 256 binary bytes follow newline" },
+       { ao_block_read, "R <addr>\0Read block. Returns 256 bytes" },
+       { 0, NULL },
+};
+
+int
+main(void)
+{
+       ao_clock_init();
+
+       ao_task_init();
+
+       ao_timer_init();
+//     ao_dma_init();
+       ao_cmd_init();
+//     ao_exti_init();
+       ao_usb_init();
+
+       ao_cmd_register(&ao_flash_cmds[0]);
+       ao_start_scheduler();
+       return 0;
+}