Avoid crashing when display components are deinitialized

Now, try_lock (SPI & I2C) & begin_transaction (display bus core) will check
that the related objects are still valid first; if they are not,
the lock/begin transaction will fail by returning false, rather than
"other things" such as raising a Python exception where it is not
permitted, accessing invalid memory, etc.

Closes adafruit#8278 and Closes adafruit#9426

Author: jepler

ports/atmel-samd/common-hal/busio/I2C.c

@@ -147,6 +147,9 @@ bool common_hal_busio_i2c_probe(busio_i2c_obj_t *self, uint8_t addr) {
 }
 
 bool common_hal_busio_i2c_try_lock(busio_i2c_obj_t *self) {
+    if (common_hal_busio_i2c_deinited(self)) {
+        return false;
+    }
     bool grabbed_lock = false;
     CRITICAL_SECTION_ENTER()
     if (!self->has_lock) {

ports/atmel-samd/common-hal/busio/SPI.c

@@ -222,6 +222,9 @@ bool common_hal_busio_spi_configure(busio_spi_obj_t *self,
 }
 
 bool common_hal_busio_spi_try_lock(busio_spi_obj_t *self) {
+    if (common_hal_busio_spi_deinited(self)) {
+        return false;
+    }
     bool grabbed_lock = false;
     CRITICAL_SECTION_ENTER()
     if (!self->has_lock) {

ports/broadcom/common-hal/busio/I2C.c

@@ -109,6 +109,9 @@ bool common_hal_busio_i2c_probe(busio_i2c_obj_t *self, uint8_t addr) {
 }
 
 bool common_hal_busio_i2c_try_lock(busio_i2c_obj_t *self) {
+    if (common_hal_busio_i2c_deinited(self)) {
+        return false;
+    }
     bool grabbed_lock = false;
     if (!self->has_lock) {
         grabbed_lock = true;

ports/broadcom/common-hal/busio/SPI.c

@@ -200,6 +200,9 @@ bool common_hal_busio_spi_configure(busio_spi_obj_t *self,
 }
 
 bool common_hal_busio_spi_try_lock(busio_spi_obj_t *self) {
+    if (common_hal_busio_spi_deinited(self)) {
+        return false;
+    }
     bool grabbed_lock = false;
     if (!self->has_lock) {
         grabbed_lock = true;

ports/cxd56/common-hal/busio/I2C.c

@@ -51,6 +51,9 @@ bool common_hal_busio_i2c_deinited(busio_i2c_obj_t *self) {
 }
 
 bool common_hal_busio_i2c_try_lock(busio_i2c_obj_t *self) {
+    if (common_hal_busio_i2c_deinited(self)) {
+        return false;
+    }
     bool grabbed_lock = false;
     if (!self->has_lock) {
         grabbed_lock = true;

ports/cxd56/common-hal/busio/SPI.c

@@ -96,6 +96,9 @@ bool common_hal_busio_spi_configure(busio_spi_obj_t *self, uint32_t baudrate, ui
 }
 
 bool common_hal_busio_spi_try_lock(busio_spi_obj_t *self) {
+    if (common_hal_busio_spi_deinited(self)) {
+        return false;
+    }
     bool grabbed_lock = false;
     if (!self->has_lock) {
         grabbed_lock = true;

ports/espressif/common-hal/busio/I2C.c

@@ -141,6 +141,9 @@ bool common_hal_busio_i2c_probe(busio_i2c_obj_t *self, uint8_t addr) {
 }
 
 bool common_hal_busio_i2c_try_lock(busio_i2c_obj_t *self) {
+    if (common_hal_busio_i2c_deinited(self)) {
+        return false;
+    }
     if (self->has_lock) {
         return false;
     }

ports/mimxrt10xx/common-hal/busio/I2C.c

@@ -187,6 +187,9 @@ bool common_hal_busio_i2c_probe(busio_i2c_obj_t *self, uint8_t addr) {
 }
 
 bool common_hal_busio_i2c_try_lock(busio_i2c_obj_t *self) {
+    if (common_hal_busio_i2c_deinited(self)) {
+        return false;
+    }
     bool grabbed_lock = false;
 //    CRITICAL_SECTION_ENTER()
     if (!self->has_lock) {

ports/mimxrt10xx/common-hal/busio/SPI.c

@@ -272,6 +272,9 @@ bool common_hal_busio_spi_configure(busio_spi_obj_t *self,
 }
 
 bool common_hal_busio_spi_try_lock(busio_spi_obj_t *self) {
+    if (common_hal_busio_spi_deinited(self)) {
+        return false;
+    }
     bool grabbed_lock = false;
 //    CRITICAL_SECTION_ENTER()
     if (!self->has_lock) {

ports/nordic/common-hal/busio/I2C.c

@@ -216,6 +216,9 @@ bool common_hal_busio_i2c_probe(busio_i2c_obj_t *self, uint8_t addr) {
 }
 
 bool common_hal_busio_i2c_try_lock(busio_i2c_obj_t *self) {
+    if (common_hal_busio_i2c_deinited(self)) {
+        return false;
+    }
     bool grabbed_lock = false;
     // NRFX_CRITICAL_SECTION_ENTER();
     if (!self->has_lock) {