system76/*: Add parport logging

Add a build-time option to configure the parallel port for logging
instead of using it as a keyboard.

src/board/system76/darp5/board.mk

@@ -22,6 +22,9 @@ CFLAGS+=-DI2C_SMBUS=I2C_0
 # Set keyboard LED I2C bus
 CFLAGS+=-DI2C_KBLED=I2C_1
 
+# Enable debug logging over keyboard parallel port
+#CFLAGS+=-DPARPORT_DEBUG
+
 # Set scratch ROM parameters
 SCRATCH_OFFSET=1024
 SCRATCH_SIZE=1024

src/board/system76/darp5/main.c

@@ -23,6 +23,10 @@
 #include <common/macro.h>
 #include <common/version.h>
 
+#ifdef PARPORT_DEBUG
+    #include <ec/parallel.h>
+#endif
+
 void external_0(void) __interrupt(0) {}
 // timer_0 is in time.c
 void timer_0(void) __interrupt(1);
@@ -43,7 +47,11 @@ void init(void) {
     ecpm_init();
     kbc_init();
     kbled_init();
+#ifdef PARPORT_DEBUG
+    parport_init();
+#else
     kbscan_init();
+#endif
     peci_init();
     pmc_init();
     pwm_init();
@@ -105,8 +113,10 @@ void main(void) {
                 power_event();
                 break;
             case 1:
+#ifndef PARPORT_DEBUG
                 // Scans keyboard and sends keyboard packets
                 kbscan_event();
+#endif
                 break;
             case 2:
                 // Passes through touchpad packets

src/board/system76/darp5/stdio.c

@@ -10,6 +10,10 @@
     #include <ec/i2c.h>
 #endif
 
+#ifdef PARPORT_DEBUG
+    #include <ec/parallel.h>
+#endif
+
 int putchar(int c) {
     unsigned char byte = (unsigned char)c;
     smfi_debug(byte);
@@ -18,6 +22,9 @@ int putchar(int c) {
 #endif
 #ifdef I2C_DEBUGGER
     i2c_send(&I2C_SMBUS, I2C_DEBUGGER, &byte, 1);
+#endif
+#ifdef PARPORT_DEBUG
+    parport_write(&byte, 1);
 #endif
     return (int)byte;
 }

src/board/system76/galp3-c/board.mk

@@ -19,6 +19,9 @@ CFLAGS+=-DLEVEL=4
 # Set battery I2C bus
 CFLAGS+=-DI2C_SMBUS=I2C_0
 
+# Enable debug logging over keyboard parallel port
+#CFLAGS+=-DPARPORT_DEBUG
+
 # Set scratch ROM parameters
 SCRATCH_OFFSET=1024
 SCRATCH_SIZE=1024

src/board/system76/galp3-c/main.c

@@ -23,6 +23,10 @@
 #include <common/macro.h>
 #include <common/version.h>
 
+#ifdef PARPORT_DEBUG
+    #include <ec/parallel.h>
+#endif
+
 void external_0(void) __interrupt(0) {}
 // timer_0 is in time.c
 void timer_0(void) __interrupt(1);
@@ -43,7 +47,11 @@ void init(void) {
     ecpm_init();
     kbc_init();
     kbled_init();
+#ifdef PARPORT_DEBUG
+    parport_init();
+#else
     kbscan_init();
+#endif
     peci_init();
     pmc_init();
     pwm_init();
@@ -105,8 +113,10 @@ void main(void) {
                 power_event();
                 break;
             case 1:
+#ifndef PARPORT_DEBUG
                 // Scans keyboard and sends keyboard packets
                 kbscan_event();
+#endif
                 break;
             case 2:
                 // Passes through touchpad packets

src/board/system76/galp3-c/stdio.c

@@ -10,6 +10,10 @@
     #include <ec/i2c.h>
 #endif
 
+#ifdef PARPORT_DEBUG
+    #include <ec/parallel.h>
+#endif
+
 int putchar(int c) {
     unsigned char byte = (unsigned char)c;
     smfi_debug(byte);
@@ -18,6 +22,9 @@ int putchar(int c) {
 #endif
 #ifdef I2C_DEBUGGER
     i2c_send(&I2C_SMBUS, I2C_DEBUGGER, &byte, 1);
+#endif
+#ifdef PARPORT_DEBUG
+    parport_write(&byte, 1);
 #endif
     return (int)byte;
 }

src/board/system76/lemp9/board.mk

@@ -22,6 +22,9 @@ CFLAGS+=-DI2C_SMBUS=I2C_4
 # Set type-c port manager I2C bus
 CFLAGS+=-DI2C_TCPM=I2C_1
 
+# Enable debug logging over keyboard parallel port
+#CFLAGS+=-DPARPORT_DEBUG
+
 # Set scratch ROM parameters
 SCRATCH_OFFSET=1024
 SCRATCH_SIZE=1024

src/board/system76/lemp9/main.c

@@ -24,6 +24,10 @@
 #include <common/macro.h>
 #include <common/version.h>
 
+#ifdef PARPORT_DEBUG
+    #include <ec/parallel.h>
+#endif
+
 void external_0(void) __interrupt(0) {}
 // timer_0 is in time.c
 void timer_0(void) __interrupt(1);
@@ -44,7 +48,11 @@ void init(void) {
     ecpm_init();
     kbc_init();
     kbled_init();
+#ifdef PARPORT_DEBUG
+    parport_init();
+#else
     kbscan_init();
+#endif
     peci_init();
     pmc_init();
     pwm_init();
@@ -107,8 +115,10 @@ void main(void) {
                 power_event();
                 break;
             case 1:
+#ifndef PARPORT_DEBUG
                 // Scans keyboard and sends keyboard packets
                 kbscan_event();
+#endif
                 break;
             case 2:
                 // Passes through touchpad packets

src/board/system76/lemp9/stdio.c

@@ -10,6 +10,10 @@
     #include <ec/i2c.h>
 #endif
 
+#ifdef PARPORT_DEBUG
+    #include <ec/parallel.h>
+#endif
+
 int putchar(int c) {
     unsigned char byte = (unsigned char)c;
     smfi_debug(byte);
@@ -18,6 +22,9 @@ int putchar(int c) {
 #endif
 #ifdef I2C_DEBUGGER
     i2c_send(&I2C_SMBUS, I2C_DEBUGGER, &byte, 1);
+#endif
+#ifdef PARPORT_DEBUG
+    parport_write(&byte, 1);
 #endif
     return (int)byte;
 }