Add Bluepill (stm32f103) handwired keyboard (#4126)

* Main folder

Main folder with some changes like the base layout and matrix for uploading in a future to the qmk repositorie

* First Commit

Firsts non previously commited changes:
-Changed to keyboards/handwired
-Basic credit to Xydane
-70% Layout

* Modified file structure for several keyboards

As I don't want to create several folders and overcrowd the main folders I made a few modifications to being able of configure several keyboards as revisions of the main keyboard.
Added a second variant.
Compiling tests went right but I haven't tried it on the controller.

* Starting leds

* Started dual color leds PWM functions and configs

I started to create the PWM functions and configs based on internet examples, it doesn't compile yet

* Backtraced a bit to establish and try debug before continuing the pwm

Just this, algo some doc as a new pinout image, space cadet modification to try if it works and little more

* Deleted unuseful stuff

After trying the reestructure to being compatible with several keyboards and that it worked I deleted the other keyboard.
Added space cadet shift to ISO.
Finally I couldn't debug everything and I'm getting quite frustrated to continue much more than just adding pwm leds

* Changed again Iso fix for Space Cadet

* Renamed keyboard, future pull

I just renamed the keyboard and made some simplifying changes in order to make a pull request sometime soon.

I'm too frustrated, tired and knowledge limited to achive using the PWM for leds, I didn't even get to use the debug mode...

I intend to end basic led color change using layers (if I can), document everything properly and make a pull request so other users can continue/use this project.

* Writed Readme.md file

I also corrected a previous compilation problem and ordered a bit the keymaps

* Corrected readme

* Try to add layer activated light

* Revert "Try to add layer activated light"

This reverts commit 205af820d845dab08988f329b9f062f558060220.

* Progress to fork

Coming back to work, upcoming pull

* Linked image

Corrected readme

* Some cleanning

Added images to readme, som cleaning, burning after commit.

* Almost finished (working)

Finally

* Finished bluepill firmware

Just finished and tried layer dependant led colors. Going for merge

* Deleted innecesary stuff and trailing spaces

Just as commit title said.

* Coding conventions

Just modified some files to respect coding conventions

* Deleted XXXXXX define

Checking some other PR seen this improvement

* Changes suggested on PR

Firs doing the easy changes

* More changes for the PR

-I also deleted one unused function for led toggling on matrix.c (Now it uses layer dependent baklight, algo on of on start)
-Deleted commented function on keymaps.

Right now only needs testing and all pragma replaces.

* Almost every pragma change on PR

That's almost finished, only waiting for reply due to compiling errors

* Revert "Almost every pragma change on PR"

This reverts commit 07f23aa862b370cdf0ae37d6f2130c9e9856f491.

* Revert last commit

I moddified by mistake a file from another keyboard

* Solved last pragma

Compiles fine.
Now I only need to test it, I say you if it works to include it in the main repository.

1 files changed, 69 insertions, 0 deletions

diff --git a/keyboards/handwired/bluepill/keymaps/default/keymap.c b/keyboards/handwired/bluepill/keymaps/default/keymap.c
new file mode 100644
index 0000000000..8a34930390
--- /dev/null
+++ b/keyboards/handwired/bluepill/keymaps/default/keymap.c
@@ -0,0 +1,69 @@
+/*
+Copyright 2012,2013 Jun Wako <wakojun@gmail.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, either version 2 of the License, or
+(at your option) any later version.
+
+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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include QMK_KEYBOARD_H
+
+// Define layer names
+#define _NORMAL 0
+#define _FNONE 1
+#define _FNTWO 2
+
+// Highly Modified by Xydane
+const uint16_t keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [_NORMAL] = LAYOUT_seventy_ansi(
+  KC_ESC, KC_F1,  KC_F2,  KC_F3,  KC_F4,  KC_F5,  KC_F6,  KC_F7,  KC_F8,  KC_F9,  KC_F10, KC_F11,  KC_F12, KC_PSCREEN,KC_HOME, KC_END, \
+KC_GRAVE, KC_1,   KC_2,   KC_3,   KC_4,   KC_5,   KC_6,   KC_7,   KC_8,   KC_9,   KC_0,   KC_MINS, KC_EQL,  KC_BSPC, KC_DELETE, \
+  KC_TAB, KC_Q,   KC_W,   KC_E,   KC_R,   KC_T,   KC_Y,   KC_U,   KC_I,   KC_O,   KC_P,   KC_LBRC, KC_RBRC,          KC_PGUP, \
+ KC_CAPS, KC_A,   KC_S,   KC_D,   KC_F,   KC_G,   KC_H,   KC_J,   KC_K,   KC_L,   KC_SCLN,KC_QUOT, KC_ENT,   KC_SLASH,KC_PGDOWN, \
+ KC_LSPO, XXXXXXX,KC_Z,   KC_X,   KC_C,   KC_V,   KC_B,   KC_N,   KC_M,   KC_COMM,KC_DOT, KC_SLSH, KC_RSPC,KC_UP,  TT(2), \
+ KC_LCTL, KC_LGUI,KC_LALT,                        KC_SPC,                 KC_RALT,MO(1),   KC_RCTL, KC_LEFT, KC_DOWN, KC_RIGHT ),
+        
+  [_FNONE] = LAYOUT_seventy_ansi(
+  KC_TRNS, KC_MPRV, KC_MSTP, KC_MPLY, KC_MNXT, KC_TRNS,KC_MUTE,KC_VOLD,KC_VOLU, KC_TRNS,KC_TRNS,KC_TRNS, KC_TRNS, KC_TRNS,KC_TRNS,KC_TRNS, \
+  KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,KC_P7,  KC_P8,  KC_P9,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,KC_TRNS, \
+  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,KC_P4,   KC_P5,  KC_P6,  KC_PPLS, KC_TRNS, KC_TRNS,         KC_TRNS, \
+  KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,KC_P1,  KC_P2,  KC_P3,  KC_PAST, KC_TRNS, KC_TRNS, KC_TRNS,KC_TRNS, \
+  KC_TRNS, XXXXXXX, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,KC_TRNS,KC_P0,  KC_PDOT,KC_PENT, KC_PSLS,   KC_TRNS,KC_TRNS,KC_TRNS, \
+  KC_TRNS, KC_TRNS, KC_TRNS,                  KC_TRNS,                       KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,KC_TRNS,KC_TRNS ),
+
+  [_FNTWO] = LAYOUT_seventy_ansi(
+  KC_TRNS, KC_MPRV, KC_MSTP, KC_MPLY, KC_MNXT, KC_TRNS, KC_MUTE,KC_VOLD,KC_VOLU,KC_TRNS,KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,KC_TRNS,KC_TRNS, \
+  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,KC_P7,  KC_P8,  KC_P9,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,KC_TRNS, \
+  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,KC_P4,  KC_P5,  KC_P6,  KC_PPLS, KC_TRNS, KC_TRNS,         KC_TRNS, \
+  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,KC_P1,  KC_P2,  KC_P3,  KC_PAST, KC_TRNS, KC_TRNS, KC_TRNS,KC_TRNS, \
+  KC_TRNS, XXXXXXX, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,KC_TRNS,KC_P0,  KC_PDOT,KC_PENT, KC_PSLS,  KC_TRNS,KC_TRNS,KC_TRNS, \
+  KC_TRNS, KC_TRNS, KC_TRNS,                   KC_TRNS,                        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,KC_TRNS,KC_TRNS ),
+};
+
+/* Layer based ilumination, just binary */
+uint32_t layer_state_set_user(uint32_t state) {
+  switch (biton32(state)) {
+  case _FNONE:
+    palSetPad(GPIOA, 0);  //OFF Color A
+    palClearPad(GPIOA, 1); //ON Color B
+    break;
+  case _FNTWO:
+    palClearPad(GPIOA, 0); //ON Color A
+    palClearPad(GPIOA, 1);  //ON Color B
+    break;
+  default: //  for any other layers, or the default layer
+    palClearPad(GPIOA, 0); //ON Color A
+    palSetPad(GPIOA, 1);  //OFF Color B
+    break;
+  }
+  return state;
+}
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