Data definitions and function declarations for simulation
of pic32 microcontrollers.
Signed-off-by: Serge Vakulenko <serge.vakule...@gmail.com>
---
hw/mips/pic32_peripherals.h | 210 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 210 insertions(+)
create mode 100644 hw/mips/pic32_peripherals.h
diff --git a/hw/mips/pic32_peripherals.h b/hw/mips/pic32_peripherals.h
new file mode 100644
index 0000000..4435991
--- /dev/null
+++ b/hw/mips/pic32_peripherals.h
@@ -0,0 +1,210 @@
+/*
+ * Define memory map for PIC32 microcontroller.
+ *
+ * Copyright (C) 2015 Serge Vakulenko
+ *
+ * Permission to use, copy, modify, and distribute this software
+ * and its documentation for any purpose and without fee is hereby
+ * granted, provided that the above copyright notice appear in all
+ * copies and that both that the copyright notice and this
+ * permission notice and warranty disclaimer appear in supporting
+ * documentation, and that the name of the author not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ *
+ * The author disclaim all warranties with regard to this
+ * software, including all implied warranties of merchantability
+ * and fitness. In no event shall the author be liable for any
+ * special, indirect or consequential damages or any damages
+ * whatsoever resulting from loss of use, data or profits, whether
+ * in an action of contract, negligence or other tortious action,
+ * arising out of or in connection with the use or performance of
+ * this software.
+ */
+#include "hw/sysbus.h" /* SysBusDevice */
+#include "net/net.h"
+
+#define IO_MEM_SIZE (1024*1024) /* 1 Mbyte */
+
+typedef struct _uart_t uart_t;
+typedef struct _spi_t spi_t;
+typedef struct _sdcard_t sdcard_t;
+typedef struct _pic32_t pic32_t;
+typedef struct _eth_t eth_t;
+
+/*
+ * UART private data.
+ */
+struct _uart_t {
+ pic32_t *mcu; /* back pointer to pic32 object */
+ unsigned irq; /* interrupt number */
+ int oactive; /* output active */
+ unsigned sta; /* UxSTA address */
+ unsigned mode; /* UxMODE address */
+ unsigned rxbyte; /* received byte */
+ CharDriverState *chr; /* pointer to serial_hds[i] */
+ QEMUTimer *transmit_timer; /* needed to delay TX interrupt */
+};
+
+/*
+ * SPI private data.
+ */
+struct _spi_t {
+ unsigned buf[4]; /* transmit and receive buffer */
+ unsigned rfifo; /* read fifo counter */
+ unsigned wfifo; /* write fifo counter */
+ unsigned irq; /* interrupt numbers */
+ unsigned con; /* SPIxCON address */
+ unsigned stat; /* SPIxSTAT address */
+};
+
+/*
+ * SD card private data.
+ */
+struct _sdcard_t {
+ const char *name; /* Device name */
+ unsigned gpio_port; /* GPIO port number of CS0 signal */
+ unsigned gpio_cs; /* GPIO pin mask of CS0 signal */
+ unsigned kbytes; /* Disk size */
+ int unit; /* Index (sd0 or sd1) */
+ int fd; /* Image file */
+ int select; /* Selected */
+ int read_multiple; /* Read-multiple mode */
+ unsigned blen; /* Block length */
+ unsigned wbecnt; /* Write block erase count */
+ unsigned offset; /* Read/write offset */
+ unsigned count; /* Byte count */
+ unsigned limit; /* Reply length */
+ unsigned char buf[1024 + 16];
+};
+
+/*
+ * PIC32 data structure.
+ */
+struct _pic32_t {
+ SysBusDevice parent_obj;
+ MIPSCPU *cpu; /* back pointer to cpu object */
+ uint32_t *iomem; /* backing storage for I/O area */
+
+ int board_type; /* board variant */
+ int stop_on_reset; /* halt simulation on soft reset */
+ unsigned syskey_unlock; /* syskey state */
+
+#define NUM_UART 6 /* number of UART ports */
+ uart_t uart[NUM_UART]; /* UART data */
+
+#define NUM_SPI 6 /* max number of SPI ports */
+ spi_t spi[NUM_SPI]; /* SPI data */
+
+ unsigned sdcard_spi_port; /* SPI port number of SD card */
+ sdcard_t sdcard[2]; /* SD card data */
+
+ DeviceState *eth_dev; /* Ethernet device */
+ eth_t *eth; /* Ethernet driver data */
+
+ void (*irq_raise)(pic32_t *s, int irq); /* set interrupt request */
+ void (*irq_clear)(pic32_t *s, int irq); /* clear interrupt request */
+};
+
+/*
+ * GPIO routines.
+ */
+void pic32_gpio_write(pic32_t *s, int unit, unsigned val);
+
+/*
+ * UART routines.
+ */
+void pic32_uart_init(pic32_t *s, int unit, int irq, int sta, int mode);
+unsigned pic32_uart_get_char(pic32_t *s, int unit);
+void pic32_uart_put_char(pic32_t *s, int unit, unsigned char data);
+void pic32_uart_poll_status(pic32_t *s, int unit);
+void pic32_uart_update_mode(pic32_t *s, int unit);
+void pic32_uart_update_status(pic32_t *s, int unit);
+
+/*
+ * SPI routines.
+ */
+void pic32_spi_init(pic32_t *s, int unit, int irq, int con, int stat);
+void pic32_spi_control(pic32_t *s, int unit);
+unsigned pic32_spi_readbuf(pic32_t *s, int unit);
+void pic32_spi_writebuf(pic32_t *s, int unit, unsigned val);
+
+/*
+ * SD card routines.
+ */
+void pic32_sdcard_init(pic32_t *s, int unit, const char *name,
+ const char *filename, int cs_port, int cs_pin);
+void pic32_sdcard_reset(pic32_t *s);
+void pic32_sdcard_select(pic32_t *s, int unit, int on);
+unsigned pic32_sdcard_io(pic32_t *s, unsigned data);
+
+/*
+ * Ethernet routines.
+ */
+void pic32_eth_init(pic32_t *s, NICInfo *nd);
+void pic32_eth_control(pic32_t *s);
+void pic32_mii_command(pic32_t *s);
+void pic32_mii_write(pic32_t *s);
+
+/*
+ * Load a binary file in hex or srec format.
+ */
+int pic32_load_hex_file(const char *filename,
+ void (*store_byte)(unsigned address, unsigned char byte));
+
+/*
+ * Helper defines for i/o switch.
+ */
+#define VALUE(name) (s->iomem[(name & 0xfffff) >> 2])
+
+#define STORAGE(name) case name:\
+ *namep = #name;
+
+#define READONLY(name) case name:\
+ *namep = #name;\
+ goto readonly
+
+#define WRITEOP(name) case name:\
+ *namep = #name;\
+ goto op_##name;\
+ case name+4:\
+ *namep = #name"CLR";\
+ goto op_##name;\
+ case name+8:\
+ *namep = #name"SET";\
+ goto op_##name;\
+ case name+12:\
+ *namep = #name"INV";\
+ op_##name: \
+ VALUE(name) = write_op(VALUE(name), data, offset)
+
+#define WRITEOPX(name, label) \
+ case name:\
+ *namep = #name;\
+ goto op_##label;\
+ case name+4:\
+ *namep = #name"CLR";\
+ goto op_##label;\
+ case name+8:\
+ *namep = #name"SET";\
+ goto op_##label;\
+ case name+12:\
+ *namep = #name"INV";\
+ goto op_##label
+
+#define WRITEOPR(name, romask) \
+ case name:\
+ *namep = #name;\
+ goto op_##name;\
+ case name+4:\
+ *namep = #name"CLR";\
+ goto op_##name;\
+ case name+8:\
+ *namep = #name"SET";\
+ goto op_##name;\
+ case name+12:\
+ *namep = #name"INV";\
+ op_##name: \
+ VALUE(name) = (VALUE(name) & (romask)) |\
+ (write_op(VALUE(name), data, offset) &\
+ ~(romask))
--
2.2.2
