ports/psoc6: Port specific Socket Module.

Signed-off-by: IFX-Anusha <Anusha.TR@infineon.com>

ports/psoc6/Makefile

@@ -134,7 +134,7 @@ ifeq ($(MICROPY_PSOC6_LWIP),1)
 	netutils/netutils.c \
 	netutils/trace.c \
   )
-  CFLAGS += -DMICROPY_PY_LWIP=1
+  CFLAGS += -DMICROPY_PY_LWIP=0
 endif
 
 DRIVERS_SRC_C += $(addprefix drivers/,\
@@ -143,6 +143,7 @@ DRIVERS_SRC_C += $(addprefix drivers/,\
 
 MOD_SRC_C += \
 	modgc.c \
+	modsocket.c \
 	\
 	machine_i2c.c \
 	machine_pin_phy.c \

ports/psoc6/irq.h

@@ -0,0 +1,74 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2023 Damien P. George
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef MICROPY_INCLUDED_PSOC6_IRQ_H
+#define MICROPY_INCLUDED_PSOC6_IRQ_H
+
+#define NVIC_PRIORITYGROUP_4    ((uint32_t)0x00000003)
+
+static inline uint32_t query_irq(void) {
+    return __get_PRIMASK();
+}
+
+static inline uint32_t raise_irq_pri(uint32_t pri) {
+    uint32_t basepri = __get_BASEPRI();
+    // If non-zero, the processor does not process any exception with a
+    // priority value greater than or equal to BASEPRI.
+    // When writing to BASEPRI_MAX the write goes to BASEPRI only if either:
+    //   - Rn is non-zero and the current BASEPRI value is 0
+    //   - Rn is non-zero and less than the current BASEPRI value
+    pri <<= (8 - __NVIC_PRIO_BITS);
+    __ASM volatile ("msr basepri_max, %0" : : "r" (pri) : "memory");
+    return basepri;
+}
+
+// "basepri" should be the value returned from raise_irq_pri
+static inline void restore_irq_pri(uint32_t basepri) {
+    __set_BASEPRI(basepri);
+}
+
+// IRQ priority definitions.
+//
+// Lower number implies higher interrupt priority.
+//
+// The default priority grouping used in this port is NVIC_PRIORITYGROUP_4.
+// This corresponds to 4 bits for the priority field and 0 bits for the
+// sub-priority field (which means that for all intents and purposes the
+// sub-priorities below are ignored).
+//
+// While a given interrupt is being processed, only higher priority (lower number)
+// interrupts will preempt a given interrupt. If sub-priorities are active
+// then the sub-priority determines the order that pending interrupts of
+// a given priority are executed. This is only meaningful if 2 or more
+// interrupts of the same priority are pending at the same time.
+//
+// The following interrupts are arranged from highest priority to lowest
+// priority to make it a bit easier to figure out.
+
+// PENDSV should be at the lowst priority so that other interrupts complete
+// before exception is raised.
+#define IRQ_PRI_PENDSV          NVIC_EncodePriority(NVIC_PRIORITYGROUP_4, 10, 0)
+
+#endif // MICROPY_INCLUDED_PSOC6_IRQ_H

ports/psoc6/lwip_inc/arch/cc.h

@@ -0,0 +1,6 @@
+#ifndef MICROPY_INCLUDED_PSOC6_LWIP_ARCH_CC_H
+#define MICROPY_INCLUDED_PSOC6_LWIP_ARCH_CC_H
+
+#include <sys/time.h>
+
+#endif // MICROPY_INCLUDED_PSOC6_LWIP_ARCH_CC_H

ports/psoc6/lwip_inc/lwipopts.h

@@ -151,6 +151,7 @@
 #define TCP_WND                         (10 * TCP_MSS)
 #define LWIP_WND_SCALE                  1
 #define TCP_RCV_SCALE                   2
+#define MEM_SIZE                        (16000)
 /**
  * TCP_SND_QUEUELEN: TCP sender buffer space (pbufs). This must be at least
  * as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work.
@@ -265,7 +266,7 @@
 
 #define LWIP_DNS                       (1)
 
-#define LWIP_NETIF_TX_SINGLE_PBUF      (0)
+#define LWIP_NETIF_TX_SINGLE_PBUF      (1)
 
 #define LWIP_RAND               rand