serprog: add opcode to control the programmer's output drivers
This allowed me to let the clips remain attached on my D946GZIS while
playing with coreboot/serialice.
Corresponding to flashrom svn r1618.
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
diff --git a/serprog.c b/serprog.c
index 28faac8..edc5a7b 100644
--- a/serprog.c
+++ b/serprog.c
@@ -664,6 +664,15 @@
sp_device_opbuf_size);
}
+ if (sp_check_commandavail(S_CMD_S_PIN_STATE)) {
+ uint8_t en = 1;
+ if (sp_docommand(S_CMD_S_PIN_STATE, 1, &en, 0, NULL) != 0) {
+ msg_perr("Error: could not enable output buffers\n");
+ return 1;
+ } else
+ msg_pdbg(MSGHEADER "Output drivers enabled\n");
+ } else
+ msg_pdbg(MSGHEADER "Warning: Programmer does not support toggling its output drivers\n");
sp_prev_was_write = 0;
sp_streamed_transmit_ops = 0;
sp_streamed_transmit_bytes = 0;
@@ -736,9 +745,15 @@
static int serprog_shutdown(void *data)
{
- msg_pspew("%s\n", __func__);
if ((sp_opbuf_usage) || (sp_max_write_n && sp_write_n_bytes))
sp_execute_opbuf();
+ if (sp_check_commandavail(S_CMD_S_PIN_STATE)) {
+ uint8_t dis = 0;
+ if (sp_docommand(S_CMD_S_PIN_STATE, 1, &dis, 0, NULL) == 0)
+ msg_pdbg(MSGHEADER "Output drivers disabled\n");
+ else
+ msg_perr(MSGHEADER "%s: Warning: could not disable output buffers\n", __func__);
+ }
/* FIXME: fix sockets on windows(?), especially closing */
serialport_shutdown(&sp_fd);
if (sp_max_write_n)