Resurrect ADC support.

Standard refactoring: add series headers for F1 and F2, along with
series adc.c files. There are some issues relating to adc_extsel_event
to hammer out later, but this will do for now.

We also add some new portability interfaces to libmaple/adc.h in order
for Wirish to use the same code to initialize the ADCs at init() time.

As usual, F1 is untested.

Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>

1 files changed, 10 insertions, 2 deletions

diff --git a/wirish/boards_private.h b/wirish/boards_private.h
index a4101c9..e32f298 100644
--- a/wirish/boards_private.h
+++ b/wirish/boards_private.h
@@ -28,11 +28,18 @@
  * @file wirish/boards_private.h
  * @author Marti Bolivar <mbolivar@leaflabs.com>
  * @brief Private board support header.
+ *
+ * This file declares chip-specific variables and functions which
+ * determine how init() behaves. It is not part of the public Wirish
+ * API, and can change without notice.
  */
 
 #ifndef _WIRISH_BOARDS_PRIVATE_H_
 #define _WIRISH_BOARDS_PRIVATE_H_
 
+#include <libmaple/rcc.h>
+#include <libmaple/adc.h>
+
 namespace wirish {
     namespace priv {
 
@@ -40,7 +47,9 @@ namespace wirish {
          * Chip-specific initialization data
          */
 
-        extern rcc_pll_cfg board_pll_cfg;
+        extern rcc_pll_cfg w_board_pll_cfg;
+        extern adc_prescaler w_adc_pre;
+        extern adc_smp_rate w_adc_smp;
 
         /*
          * Chip-specific initialization routines and helper functions.
@@ -49,7 +58,6 @@ namespace wirish {
         void board_reset_pll(void);
         void board_setup_clock_prescalers(void);
         void board_setup_gpio(void);
-        void board_setup_adc(void);
         void board_setup_timers(void);
         void board_setup_usb(void);