@@ -27,10 +27,37 @@
#include "hw/boards.h"
#include "hw/qdev-properties.h"
#include "qemu/error-report.h"
-#include "hw/arm/stm32l4x5_soc.h"
#include "hw/arm/boot.h"
+#include "hw/core/split-irq.h"
+#include "hw/arm/stm32l4x5_soc.h"
+#include "hw/gpio/stm32l4x5_gpio.h"
+#include "hw/display/dm163.h"
+
+/* B-L475E-IOT01A implementation is inspired from netduinoplus2 and arduino */
-/* B-L475E-IOT01A implementation is derived from netduinoplus2 */
+/*
+ * There are actually 14 input pins in the DM163 device.
+ * Here the DM163 input pin EN isn't connected to the STM32L4x5
+ * GPIOs as the IM120417002 colors shield doesn't actually use
+ * this pin to drive the RGB matrix.
+ */
+#define NUM_DM163_INPUTS 13
+
+static const int dm163_input[NUM_DM163_INPUTS] = {
+ 1 * GPIO_NUM_PINS + 2, /* ROW0 PB2 */
+ 0 * GPIO_NUM_PINS + 15, /* ROW1 PA15 */
+ 0 * GPIO_NUM_PINS + 2, /* ROW2 PA2 */
+ 0 * GPIO_NUM_PINS + 7, /* ROW3 PA7 */
+ 0 * GPIO_NUM_PINS + 6, /* ROW4 PA6 */
+ 0 * GPIO_NUM_PINS + 5, /* ROW5 PA5 */
+ 1 * GPIO_NUM_PINS + 0, /* ROW6 PB0 */
+ 0 * GPIO_NUM_PINS + 3, /* ROW7 PA3 */
+ 0 * GPIO_NUM_PINS + 4, /* SIN (SDA) PA4 */
+ 1 * GPIO_NUM_PINS + 1, /* DCK (SCK) PB1 */
+ 2 * GPIO_NUM_PINS + 3, /* RST_B (RST) PC3 */
+ 2 * GPIO_NUM_PINS + 4, /* LAT_B (LAT) PC4 */
+ 2 * GPIO_NUM_PINS + 5, /* SELBK (SB) PC5 */
+};
#define TYPE_B_L475E_IOT01A MACHINE_TYPE_NAME("b-l475e-iot01a")
OBJECT_DECLARE_SIMPLE_TYPE(Bl475eMachineState, B_L475E_IOT01A)
@@ -39,12 +66,16 @@ typedef struct Bl475eMachineState {
MachineState parent_obj;
Stm32l4x5SocState soc;
+ SplitIRQ gpio_splitters[NUM_DM163_INPUTS];
+ DM163State dm163;
} Bl475eMachineState;
static void bl475e_init(MachineState *machine)
{
Bl475eMachineState *s = B_L475E_IOT01A(machine);
const Stm32l4x5SocClass *sc;
+ DeviceState *dev, *gpio_out_splitter;
+ int gpio, pin;
object_initialize_child(OBJECT(machine), "soc", &s->soc,
TYPE_STM32L4X5XG_SOC);
@@ -53,6 +84,30 @@ static void bl475e_init(MachineState *machine)
sc = STM32L4X5_SOC_GET_CLASS(&s->soc);
armv7m_load_kernel(ARM_CPU(first_cpu),
machine->kernel_filename, 0, sc->flash_size);
+
+ if (object_class_by_name("dm163")) {
+ object_initialize_child(OBJECT(machine), "dm163",
+ &s->dm163, TYPE_DM163);
+ dev = DEVICE(&s->dm163);
+ qdev_realize(dev, NULL, &error_abort);
+
+ for (unsigned i = 0; i < NUM_DM163_INPUTS; i++) {
+ object_initialize_child(OBJECT(machine), "gpio-out-splitters[*]",
+ &s->gpio_splitters[i], TYPE_SPLIT_IRQ);
+ gpio_out_splitter = DEVICE(&s->gpio_splitters[i]);
+ qdev_prop_set_uint32(gpio_out_splitter, "num-lines", 2);
+ qdev_realize(gpio_out_splitter, NULL, &error_fatal);
+
+ qdev_connect_gpio_out(gpio_out_splitter, 0,
+ qdev_get_gpio_in(DEVICE(&s->soc), dm163_input[i]));
+ qdev_connect_gpio_out(gpio_out_splitter, 1,
+ qdev_get_gpio_in(dev, i));
+ gpio = dm163_input[i] / GPIO_NUM_PINS;
+ pin = dm163_input[i] % GPIO_NUM_PINS;
+ qdev_connect_gpio_out(DEVICE(&s->soc.gpio[gpio]), pin,
+ qdev_get_gpio_in(DEVICE(gpio_out_splitter), 0));
+ }
+ }
}
static void bl475e_machine_init(ObjectClass *oc, void *data)
@@ -458,6 +458,7 @@ config B_L475E_IOT01A
default y
depends on TCG && ARM
select STM32L4X5_SOC
+ imply DM163
config STM32L4X5_SOC
bool