altos: Add actual flashing functions to stm-flash app

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/src/stm-flash/ao_stm_flash.c b/src/stm-flash/ao_stm_flash.c
index 2988a9375345c947665cc8972b87083da28e004e..4a91ef1fa4a5e1d234b003ae464e85b8305f1cb8 100644 (file)
--- a/src/stm-flash/ao_stm_flash.c
+++ b/src/stm-flash/ao_stm_flash.c
@@ -32,8 +32,58 @@ 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_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;
+
+       for (i = 0; i < 256; i++)
+               u.data8[i] = getchar();
+       ao_flash_page(p, u.data32);
+}
+
+void
+ao_block_read(void)
+{
+       uint32_t        addr = ao_cmd_hex32();
+       uint8_t         *p = (uint8_t *) addr;
+       uint16_t        i;
+
+       for (i = 0; i < 256; i++)
+               putchar(*p++);
+}
+
 __code struct ao_cmds ao_flash_cmds[] = {
        { ao_application, "A\0Switch to application" },
+       { ao_block_write, "W <addr>\0Write block. 256 binary bytes follow newline" },
+       { ao_block_read, "R <addr>\0Read block. Returns 256 bytes" },
        { 0, NULL },
 };