 8110fa1d94
			
		
	
	
		8110fa1d94
		
	
	
	
	
		
			
			Generated using: $ ./scripts/codeconverter/converter.py -i \ --pattern=TypeCheckMacro $(git grep -l '' -- '*.[ch]') Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20200831210740.126168-12-ehabkost@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20200831210740.126168-13-ehabkost@redhat.com> Message-Id: <20200831210740.126168-14-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
		
			
				
	
	
		
			459 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			459 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * QEMU ATmega MCU
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|  *
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|  * Copyright (c) 2019-2020 Philippe Mathieu-Daudé
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|  *
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|  * This work is licensed under the terms of the GNU GPLv2 or later.
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|  * See the COPYING file in the top-level directory.
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|  * SPDX-License-Identifier: GPL-2.0-or-later
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|  */
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| 
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| #include "qemu/osdep.h"
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| #include "qemu/module.h"
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| #include "qemu/units.h"
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| #include "qapi/error.h"
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| #include "exec/memory.h"
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| #include "exec/address-spaces.h"
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| #include "sysemu/sysemu.h"
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| #include "hw/qdev-properties.h"
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| #include "hw/sysbus.h"
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| #include "qom/object.h"
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| #include "hw/boards.h" /* FIXME memory_region_allocate_system_memory for sram */
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| #include "hw/misc/unimp.h"
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| #include "atmega.h"
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| 
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| enum AtmegaPeripheral {
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|     POWER0, POWER1,
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|     GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, GPIOF,
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|     GPIOG, GPIOH, GPIOI, GPIOJ, GPIOK, GPIOL,
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|     USART0, USART1, USART2, USART3,
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|     TIMER0, TIMER1, TIMER2, TIMER3, TIMER4, TIMER5,
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|     PERIFMAX
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| };
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| 
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| #define GPIO(n)     (n + GPIOA)
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| #define USART(n)    (n + USART0)
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| #define TIMER(n)    (n + TIMER0)
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| #define POWER(n)    (n + POWER0)
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| 
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| typedef struct {
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|     uint16_t addr;
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|     enum AtmegaPeripheral power_index;
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|     uint8_t power_bit;
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|     /* timer specific */
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|     uint16_t intmask_addr;
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|     uint16_t intflag_addr;
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|     bool is_timer16;
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| } peripheral_cfg;
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| 
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| struct AtmegaMcuClass {
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|     /*< private >*/
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|     SysBusDeviceClass parent_class;
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|     /*< public >*/
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|     const char *uc_name;
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|     const char *cpu_type;
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|     size_t flash_size;
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|     size_t eeprom_size;
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|     size_t sram_size;
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|     size_t io_size;
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|     size_t gpio_count;
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|     size_t adc_count;
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|     const uint8_t *irq;
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|     const peripheral_cfg *dev;
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| };
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| typedef struct AtmegaMcuClass AtmegaMcuClass;
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| 
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| DECLARE_CLASS_CHECKERS(AtmegaMcuClass, ATMEGA_MCU,
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|                        TYPE_ATMEGA_MCU)
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| 
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| static const peripheral_cfg dev168_328[PERIFMAX] = {
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|     [USART0]        = {  0xc0, POWER0, 1 },
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|     [TIMER2]        = {  0xb0, POWER0, 6, 0x70, 0x37, false },
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|     [TIMER1]        = {  0x80, POWER0, 3, 0x6f, 0x36, true },
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|     [POWER0]        = {  0x64 },
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|     [TIMER0]        = {  0x44, POWER0, 5, 0x6e, 0x35, false },
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|     [GPIOD]         = {  0x29 },
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|     [GPIOC]         = {  0x26 },
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|     [GPIOB]         = {  0x23 },
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| }, dev1280_2560[PERIFMAX] = {
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|     [USART3]        = { 0x130, POWER1, 2 },
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|     [TIMER5]        = { 0x120, POWER1, 5, 0x73, 0x3a, true },
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|     [GPIOL]         = { 0x109 },
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|     [GPIOK]         = { 0x106 },
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|     [GPIOJ]         = { 0x103 },
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|     [GPIOH]         = { 0x100 },
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|     [USART2]        = {  0xd0, POWER1, 1 },
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|     [USART1]        = {  0xc8, POWER1, 0 },
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|     [USART0]        = {  0xc0, POWER0, 1 },
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|     [TIMER2]        = {  0xb0, POWER0, 6, 0x70, 0x37, false }, /* TODO async */
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|     [TIMER4]        = {  0xa0, POWER1, 4, 0x72, 0x39, true },
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|     [TIMER3]        = {  0x90, POWER1, 3, 0x71, 0x38, true },
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|     [TIMER1]        = {  0x80, POWER0, 3, 0x6f, 0x36, true },
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|     [POWER1]        = {  0x65 },
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|     [POWER0]        = {  0x64 },
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|     [TIMER0]        = {  0x44, POWER0, 5, 0x6e, 0x35, false },
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|     [GPIOG]         = {  0x32 },
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|     [GPIOF]         = {  0x2f },
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|     [GPIOE]         = {  0x2c },
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|     [GPIOD]         = {  0x29 },
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|     [GPIOC]         = {  0x26 },
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|     [GPIOB]         = {  0x23 },
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|     [GPIOA]         = {  0x20 },
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| };
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| 
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| enum AtmegaIrq {
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|     USART0_RXC_IRQ, USART0_DRE_IRQ, USART0_TXC_IRQ,
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|     USART1_RXC_IRQ, USART1_DRE_IRQ, USART1_TXC_IRQ,
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|     USART2_RXC_IRQ, USART2_DRE_IRQ, USART2_TXC_IRQ,
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|     USART3_RXC_IRQ, USART3_DRE_IRQ, USART3_TXC_IRQ,
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|     TIMER0_CAPT_IRQ, TIMER0_COMPA_IRQ, TIMER0_COMPB_IRQ,
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|         TIMER0_COMPC_IRQ, TIMER0_OVF_IRQ,
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|     TIMER1_CAPT_IRQ, TIMER1_COMPA_IRQ, TIMER1_COMPB_IRQ,
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|         TIMER1_COMPC_IRQ, TIMER1_OVF_IRQ,
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|     TIMER2_CAPT_IRQ, TIMER2_COMPA_IRQ, TIMER2_COMPB_IRQ,
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|         TIMER2_COMPC_IRQ, TIMER2_OVF_IRQ,
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|     TIMER3_CAPT_IRQ, TIMER3_COMPA_IRQ, TIMER3_COMPB_IRQ,
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|         TIMER3_COMPC_IRQ, TIMER3_OVF_IRQ,
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|     TIMER4_CAPT_IRQ, TIMER4_COMPA_IRQ, TIMER4_COMPB_IRQ,
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|         TIMER4_COMPC_IRQ, TIMER4_OVF_IRQ,
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|     TIMER5_CAPT_IRQ, TIMER5_COMPA_IRQ, TIMER5_COMPB_IRQ,
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|         TIMER5_COMPC_IRQ, TIMER5_OVF_IRQ,
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|     IRQ_COUNT
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| };
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| 
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| #define USART_IRQ_COUNT     3
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| #define USART_RXC_IRQ(n)    (n * USART_IRQ_COUNT + USART0_RXC_IRQ)
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| #define USART_DRE_IRQ(n)    (n * USART_IRQ_COUNT + USART0_DRE_IRQ)
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| #define USART_TXC_IRQ(n)    (n * USART_IRQ_COUNT + USART0_TXC_IRQ)
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| #define TIMER_IRQ_COUNT     5
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| #define TIMER_CAPT_IRQ(n)   (n * TIMER_IRQ_COUNT + TIMER0_CAPT_IRQ)
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| #define TIMER_COMPA_IRQ(n)  (n * TIMER_IRQ_COUNT + TIMER0_COMPA_IRQ)
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| #define TIMER_COMPB_IRQ(n)  (n * TIMER_IRQ_COUNT + TIMER0_COMPB_IRQ)
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| #define TIMER_COMPC_IRQ(n)  (n * TIMER_IRQ_COUNT + TIMER0_COMPC_IRQ)
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| #define TIMER_OVF_IRQ(n)    (n * TIMER_IRQ_COUNT + TIMER0_OVF_IRQ)
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| 
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| static const uint8_t irq168_328[IRQ_COUNT] = {
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|     [TIMER2_COMPA_IRQ]      = 8,
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|     [TIMER2_COMPB_IRQ]      = 9,
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|     [TIMER2_OVF_IRQ]        = 10,
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|     [TIMER1_CAPT_IRQ]       = 11,
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|     [TIMER1_COMPA_IRQ]      = 12,
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|     [TIMER1_COMPB_IRQ]      = 13,
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|     [TIMER1_OVF_IRQ]        = 14,
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|     [TIMER0_COMPA_IRQ]      = 15,
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|     [TIMER0_COMPB_IRQ]      = 16,
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|     [TIMER0_OVF_IRQ]        = 17,
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|     [USART0_RXC_IRQ]        = 19,
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|     [USART0_DRE_IRQ]        = 20,
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|     [USART0_TXC_IRQ]        = 21,
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| }, irq1280_2560[IRQ_COUNT] = {
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|     [TIMER2_COMPA_IRQ]      = 14,
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|     [TIMER2_COMPB_IRQ]      = 15,
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|     [TIMER2_OVF_IRQ]        = 16,
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|     [TIMER1_CAPT_IRQ]       = 17,
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|     [TIMER1_COMPA_IRQ]      = 18,
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|     [TIMER1_COMPB_IRQ]      = 19,
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|     [TIMER1_COMPC_IRQ]      = 20,
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|     [TIMER1_OVF_IRQ]        = 21,
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|     [TIMER0_COMPA_IRQ]      = 22,
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|     [TIMER0_COMPB_IRQ]      = 23,
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|     [TIMER0_OVF_IRQ]        = 24,
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|     [USART0_RXC_IRQ]        = 26,
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|     [USART0_DRE_IRQ]        = 27,
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|     [USART0_TXC_IRQ]        = 28,
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|     [TIMER3_CAPT_IRQ]       = 32,
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|     [TIMER3_COMPA_IRQ]      = 33,
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|     [TIMER3_COMPB_IRQ]      = 34,
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|     [TIMER3_COMPC_IRQ]      = 35,
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|     [TIMER3_OVF_IRQ]        = 36,
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|     [USART1_RXC_IRQ]        = 37,
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|     [USART1_DRE_IRQ]        = 38,
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|     [USART1_TXC_IRQ]        = 39,
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|     [TIMER4_CAPT_IRQ]       = 42,
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|     [TIMER4_COMPA_IRQ]      = 43,
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|     [TIMER4_COMPB_IRQ]      = 44,
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|     [TIMER4_COMPC_IRQ]      = 45,
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|     [TIMER4_OVF_IRQ]        = 46,
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|     [TIMER5_CAPT_IRQ]       = 47,
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|     [TIMER5_COMPA_IRQ]      = 48,
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|     [TIMER5_COMPB_IRQ]      = 49,
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|     [TIMER5_COMPC_IRQ]      = 50,
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|     [TIMER5_OVF_IRQ]        = 51,
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|     [USART2_RXC_IRQ]        = 52,
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|     [USART2_DRE_IRQ]        = 53,
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|     [USART2_TXC_IRQ]        = 54,
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|     [USART3_RXC_IRQ]        = 55,
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|     [USART3_DRE_IRQ]        = 56,
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|     [USART3_TXC_IRQ]        = 57,
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| };
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| 
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| static void connect_peripheral_irq(const AtmegaMcuClass *k,
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|                                    SysBusDevice *dev, int dev_irqn,
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|                                    DeviceState *cpu,
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|                                    unsigned peripheral_index)
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| {
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|     int cpu_irq = k->irq[peripheral_index];
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| 
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|     if (!cpu_irq) {
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|         return;
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|     }
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|     /* FIXME move that to avr_cpu_set_int() once 'sample' board is removed */
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|     assert(cpu_irq >= 2);
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|     cpu_irq -= 2;
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| 
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|     sysbus_connect_irq(dev, dev_irqn, qdev_get_gpio_in(cpu, cpu_irq));
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| }
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| 
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| static void connect_power_reduction_gpio(AtmegaMcuState *s,
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|                                          const AtmegaMcuClass *k,
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|                                          DeviceState *cpu,
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|                                          unsigned peripheral_index)
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| {
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|     unsigned power_index = k->dev[peripheral_index].power_index;
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|     assert(k->dev[power_index].addr);
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|     sysbus_connect_irq(SYS_BUS_DEVICE(&s->pwr[power_index - POWER0]),
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|                        k->dev[peripheral_index].power_bit,
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|                        qdev_get_gpio_in(cpu, 0));
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| }
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| 
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| static void atmega_realize(DeviceState *dev, Error **errp)
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| {
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|     AtmegaMcuState *s = ATMEGA_MCU(dev);
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|     const AtmegaMcuClass *mc = ATMEGA_MCU_GET_CLASS(dev);
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|     DeviceState *cpudev;
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|     SysBusDevice *sbd;
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|     char *devname;
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|     size_t i;
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| 
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|     assert(mc->io_size <= 0x200);
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| 
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|     if (!s->xtal_freq_hz) {
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|         error_setg(errp, "\"xtal-frequency-hz\" property must be provided.");
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|         return;
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|     }
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| 
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|     /* CPU */
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|     object_initialize_child(OBJECT(dev), "cpu", &s->cpu, mc->cpu_type);
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|     object_property_set_bool(OBJECT(&s->cpu), "realized", true, &error_abort);
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|     cpudev = DEVICE(&s->cpu);
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| 
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|     /* SRAM */
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|     memory_region_init_ram(&s->sram, OBJECT(dev), "sram", mc->sram_size,
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|                            &error_abort);
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|     memory_region_add_subregion(get_system_memory(),
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|                                 OFFSET_DATA + mc->io_size, &s->sram);
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| 
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|     /* Flash */
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|     memory_region_init_rom(&s->flash, OBJECT(dev),
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|                            "flash", mc->flash_size, &error_fatal);
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|     memory_region_add_subregion(get_system_memory(), OFFSET_CODE, &s->flash);
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| 
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|     /*
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|      * I/O
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|      *
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|      * 0x00 - 0x1f: Registers
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|      * 0x20 - 0x5f: I/O memory
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|      * 0x60 - 0xff: Extended I/O
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|      */
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|     s->io = qdev_new(TYPE_UNIMPLEMENTED_DEVICE);
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|     qdev_prop_set_string(s->io, "name", "I/O");
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|     qdev_prop_set_uint64(s->io, "size", mc->io_size);
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|     sysbus_realize_and_unref(SYS_BUS_DEVICE(s->io), &error_fatal);
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|     sysbus_mmio_map_overlap(SYS_BUS_DEVICE(s->io), 0, OFFSET_DATA, -1234);
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| 
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|     /* Power Reduction */
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|     for (i = 0; i < POWER_MAX; i++) {
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|         int idx = POWER(i);
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|         if (!mc->dev[idx].addr) {
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|             continue;
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|         }
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|         devname = g_strdup_printf("power%zu", i);
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|         object_initialize_child(OBJECT(dev), devname, &s->pwr[i],
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|                                 TYPE_AVR_MASK);
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|         sysbus_realize(SYS_BUS_DEVICE(&s->pwr[i]), &error_abort);
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|         sysbus_mmio_map(SYS_BUS_DEVICE(&s->pwr[i]), 0,
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|                         OFFSET_DATA + mc->dev[idx].addr);
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|         g_free(devname);
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|     }
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| 
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|     /* GPIO */
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|     for (i = 0; i < GPIO_MAX; i++) {
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|         int idx = GPIO(i);
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|         if (!mc->dev[idx].addr) {
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|             continue;
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|         }
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|         devname = g_strdup_printf("atmega-gpio-%c", 'a' + (char)i);
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|         create_unimplemented_device(devname,
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|                                     OFFSET_DATA + mc->dev[idx].addr, 3);
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|         g_free(devname);
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|     }
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| 
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|     /* USART */
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|     for (i = 0; i < USART_MAX; i++) {
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|         int idx = USART(i);
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|         if (!mc->dev[idx].addr) {
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|             continue;
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|         }
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|         devname = g_strdup_printf("usart%zu", i);
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|         object_initialize_child(OBJECT(dev), devname, &s->usart[i],
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|                                 TYPE_AVR_USART);
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|         qdev_prop_set_chr(DEVICE(&s->usart[i]), "chardev", serial_hd(i));
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|         sbd = SYS_BUS_DEVICE(&s->usart[i]);
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|         sysbus_realize(sbd, &error_abort);
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|         sysbus_mmio_map(sbd, 0, OFFSET_DATA + mc->dev[USART(i)].addr);
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|         connect_peripheral_irq(mc, sbd, 0, cpudev, USART_RXC_IRQ(i));
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|         connect_peripheral_irq(mc, sbd, 1, cpudev, USART_DRE_IRQ(i));
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|         connect_peripheral_irq(mc, sbd, 2, cpudev, USART_TXC_IRQ(i));
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|         connect_power_reduction_gpio(s, mc, DEVICE(&s->usart[i]), idx);
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|         g_free(devname);
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|     }
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| 
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|     /* Timer */
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|     for (i = 0; i < TIMER_MAX; i++) {
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|         int idx = TIMER(i);
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|         if (!mc->dev[idx].addr) {
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|             continue;
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|         }
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|         if (!mc->dev[idx].is_timer16) {
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|             create_unimplemented_device("avr-timer8",
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|                                         OFFSET_DATA + mc->dev[idx].addr, 5);
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|             create_unimplemented_device("avr-timer8-intmask",
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|                                         OFFSET_DATA
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|                                         + mc->dev[idx].intmask_addr, 1);
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|             create_unimplemented_device("avr-timer8-intflag",
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|                                         OFFSET_DATA
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|                                         + mc->dev[idx].intflag_addr, 1);
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|             continue;
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|         }
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|         devname = g_strdup_printf("timer%zu", i);
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|         object_initialize_child(OBJECT(dev), devname, &s->timer[i],
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|                                 TYPE_AVR_TIMER16);
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|         object_property_set_uint(OBJECT(&s->timer[i]), "cpu-frequency-hz",
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|                                  s->xtal_freq_hz, &error_abort);
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|         sbd = SYS_BUS_DEVICE(&s->timer[i]);
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|         sysbus_realize(sbd, &error_abort);
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|         sysbus_mmio_map(sbd, 0, OFFSET_DATA + mc->dev[idx].addr);
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|         sysbus_mmio_map(sbd, 1, OFFSET_DATA + mc->dev[idx].intmask_addr);
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|         sysbus_mmio_map(sbd, 2, OFFSET_DATA + mc->dev[idx].intflag_addr);
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|         connect_peripheral_irq(mc, sbd, 0, cpudev, TIMER_CAPT_IRQ(i));
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|         connect_peripheral_irq(mc, sbd, 1, cpudev, TIMER_COMPA_IRQ(i));
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|         connect_peripheral_irq(mc, sbd, 2, cpudev, TIMER_COMPB_IRQ(i));
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|         connect_peripheral_irq(mc, sbd, 3, cpudev, TIMER_COMPC_IRQ(i));
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|         connect_peripheral_irq(mc, sbd, 4, cpudev, TIMER_OVF_IRQ(i));
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|         connect_power_reduction_gpio(s, mc, DEVICE(&s->timer[i]), idx);
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|         g_free(devname);
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|     }
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| 
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|     create_unimplemented_device("avr-twi",          OFFSET_DATA + 0x0b8, 6);
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|     create_unimplemented_device("avr-adc",          OFFSET_DATA + 0x078, 8);
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|     create_unimplemented_device("avr-ext-mem-ctrl", OFFSET_DATA + 0x074, 2);
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|     create_unimplemented_device("avr-watchdog",     OFFSET_DATA + 0x060, 1);
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|     create_unimplemented_device("avr-spi",          OFFSET_DATA + 0x04c, 3);
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|     create_unimplemented_device("avr-eeprom",       OFFSET_DATA + 0x03f, 3);
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| }
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| 
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| static Property atmega_props[] = {
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|     DEFINE_PROP_UINT64("xtal-frequency-hz", AtmegaMcuState,
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|                        xtal_freq_hz, 0),
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|     DEFINE_PROP_END_OF_LIST()
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| };
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| 
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| static void atmega_class_init(ObjectClass *oc, void *data)
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| {
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|     DeviceClass *dc = DEVICE_CLASS(oc);
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| 
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|     dc->realize = atmega_realize;
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|     device_class_set_props(dc, atmega_props);
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|     /* Reason: Mapped at fixed location on the system bus */
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|     dc->user_creatable = false;
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| }
 | |
| 
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| static void atmega168_class_init(ObjectClass *oc, void *data)
 | |
| {
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|     AtmegaMcuClass *amc = ATMEGA_MCU_CLASS(oc);
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| 
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|     amc->cpu_type = AVR_CPU_TYPE_NAME("avr5");
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|     amc->flash_size = 16 * KiB;
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|     amc->eeprom_size = 512;
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|     amc->sram_size = 1 * KiB;
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|     amc->io_size = 256;
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|     amc->gpio_count = 23;
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|     amc->adc_count = 6;
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|     amc->irq = irq168_328;
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|     amc->dev = dev168_328;
 | |
| };
 | |
| 
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| static void atmega328_class_init(ObjectClass *oc, void *data)
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| {
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|     AtmegaMcuClass *amc = ATMEGA_MCU_CLASS(oc);
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| 
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|     amc->cpu_type = AVR_CPU_TYPE_NAME("avr5");
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|     amc->flash_size = 32 * KiB;
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|     amc->eeprom_size = 1 * KiB;
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|     amc->sram_size = 2 * KiB;
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|     amc->io_size = 256;
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|     amc->gpio_count = 23;
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|     amc->adc_count = 6;
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|     amc->irq = irq168_328;
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|     amc->dev = dev168_328;
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| };
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| 
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| static void atmega1280_class_init(ObjectClass *oc, void *data)
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| {
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|     AtmegaMcuClass *amc = ATMEGA_MCU_CLASS(oc);
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| 
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|     amc->cpu_type = AVR_CPU_TYPE_NAME("avr6");
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|     amc->flash_size = 128 * KiB;
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|     amc->eeprom_size = 4 * KiB;
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|     amc->sram_size = 8 * KiB;
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|     amc->io_size = 512;
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|     amc->gpio_count = 86;
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|     amc->adc_count = 16;
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|     amc->irq = irq1280_2560;
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|     amc->dev = dev1280_2560;
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| };
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| 
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| static void atmega2560_class_init(ObjectClass *oc, void *data)
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| {
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|     AtmegaMcuClass *amc = ATMEGA_MCU_CLASS(oc);
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| 
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|     amc->cpu_type = AVR_CPU_TYPE_NAME("avr6");
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|     amc->flash_size = 256 * KiB;
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|     amc->eeprom_size = 4 * KiB;
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|     amc->sram_size = 8 * KiB;
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|     amc->io_size = 512;
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|     amc->gpio_count = 54;
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|     amc->adc_count = 16;
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|     amc->irq = irq1280_2560;
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|     amc->dev = dev1280_2560;
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| };
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| 
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| static const TypeInfo atmega_mcu_types[] = {
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|     {
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|         .name           = TYPE_ATMEGA168_MCU,
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|         .parent         = TYPE_ATMEGA_MCU,
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|         .class_init     = atmega168_class_init,
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|     }, {
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|         .name           = TYPE_ATMEGA328_MCU,
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|         .parent         = TYPE_ATMEGA_MCU,
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|         .class_init     = atmega328_class_init,
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|     }, {
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|         .name           = TYPE_ATMEGA1280_MCU,
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|         .parent         = TYPE_ATMEGA_MCU,
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|         .class_init     = atmega1280_class_init,
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|     }, {
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|         .name           = TYPE_ATMEGA2560_MCU,
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|         .parent         = TYPE_ATMEGA_MCU,
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|         .class_init     = atmega2560_class_init,
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|     }, {
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|         .name           = TYPE_ATMEGA_MCU,
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|         .parent         = TYPE_SYS_BUS_DEVICE,
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|         .instance_size  = sizeof(AtmegaMcuState),
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|         .class_size     = sizeof(AtmegaMcuClass),
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|         .class_init     = atmega_class_init,
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|         .abstract       = true,
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|     }
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| };
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| 
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| DEFINE_TYPES(atmega_mcu_types)
 |