1529fc5fdSAlistair Francis /* 2529fc5fdSAlistair Francis * STM32F405 SoC 3529fc5fdSAlistair Francis * 4529fc5fdSAlistair Francis * Copyright (c) 2014 Alistair Francis <alistair@alistair23.me> 5529fc5fdSAlistair Francis * 6529fc5fdSAlistair Francis * Permission is hereby granted, free of charge, to any person obtaining a copy 7529fc5fdSAlistair Francis * of this software and associated documentation files (the "Software"), to deal 8529fc5fdSAlistair Francis * in the Software without restriction, including without limitation the rights 9529fc5fdSAlistair Francis * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10529fc5fdSAlistair Francis * copies of the Software, and to permit persons to whom the Software is 11529fc5fdSAlistair Francis * furnished to do so, subject to the following conditions: 12529fc5fdSAlistair Francis * 13529fc5fdSAlistair Francis * The above copyright notice and this permission notice shall be included in 14529fc5fdSAlistair Francis * all copies or substantial portions of the Software. 15529fc5fdSAlistair Francis * 16529fc5fdSAlistair Francis * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17529fc5fdSAlistair Francis * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18529fc5fdSAlistair Francis * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19529fc5fdSAlistair Francis * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20529fc5fdSAlistair Francis * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21529fc5fdSAlistair Francis * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22529fc5fdSAlistair Francis * THE SOFTWARE. 23529fc5fdSAlistair Francis */ 24529fc5fdSAlistair Francis 25529fc5fdSAlistair Francis #include "qemu/osdep.h" 26529fc5fdSAlistair Francis #include "qapi/error.h" 27529fc5fdSAlistair Francis #include "qemu-common.h" 28529fc5fdSAlistair Francis #include "exec/address-spaces.h" 29529fc5fdSAlistair Francis #include "sysemu/sysemu.h" 30529fc5fdSAlistair Francis #include "hw/arm/stm32f405_soc.h" 31529fc5fdSAlistair Francis #include "hw/misc/unimp.h" 32529fc5fdSAlistair Francis 33529fc5fdSAlistair Francis #define SYSCFG_ADD 0x40013800 34529fc5fdSAlistair Francis static const uint32_t usart_addr[] = { 0x40011000, 0x40004400, 0x40004800, 35529fc5fdSAlistair Francis 0x40004C00, 0x40005000, 0x40011400, 36529fc5fdSAlistair Francis 0x40007800, 0x40007C00 }; 37529fc5fdSAlistair Francis /* At the moment only Timer 2 to 5 are modelled */ 38529fc5fdSAlistair Francis static const uint32_t timer_addr[] = { 0x40000000, 0x40000400, 39529fc5fdSAlistair Francis 0x40000800, 0x40000C00 }; 40529fc5fdSAlistair Francis #define ADC_ADDR 0x40012000 41529fc5fdSAlistair Francis static const uint32_t spi_addr[] = { 0x40013000, 0x40003800, 0x40003C00, 42529fc5fdSAlistair Francis 0x40013400, 0x40015000, 0x40015400 }; 43529fc5fdSAlistair Francis #define EXTI_ADDR 0x40013C00 44529fc5fdSAlistair Francis 45529fc5fdSAlistair Francis #define SYSCFG_IRQ 71 46529fc5fdSAlistair Francis static const int usart_irq[] = { 37, 38, 39, 52, 53, 71, 82, 83 }; 47529fc5fdSAlistair Francis static const int timer_irq[] = { 28, 29, 30, 50 }; 48529fc5fdSAlistair Francis #define ADC_IRQ 18 49529fc5fdSAlistair Francis static const int spi_irq[] = { 35, 36, 51, 0, 0, 0 }; 50529fc5fdSAlistair Francis static const int exti_irq[] = { 6, 7, 8, 9, 10, 23, 23, 23, 23, 23, 40, 51529fc5fdSAlistair Francis 40, 40, 40, 40, 40} ; 52529fc5fdSAlistair Francis 53529fc5fdSAlistair Francis 54529fc5fdSAlistair Francis static void stm32f405_soc_initfn(Object *obj) 55529fc5fdSAlistair Francis { 56529fc5fdSAlistair Francis STM32F405State *s = STM32F405_SOC(obj); 57529fc5fdSAlistair Francis int i; 58529fc5fdSAlistair Francis 59529fc5fdSAlistair Francis sysbus_init_child_obj(obj, "armv7m", &s->armv7m, sizeof(s->armv7m), 60529fc5fdSAlistair Francis TYPE_ARMV7M); 61529fc5fdSAlistair Francis 62529fc5fdSAlistair Francis sysbus_init_child_obj(obj, "syscfg", &s->syscfg, sizeof(s->syscfg), 63529fc5fdSAlistair Francis TYPE_STM32F4XX_SYSCFG); 64529fc5fdSAlistair Francis 65529fc5fdSAlistair Francis for (i = 0; i < STM_NUM_USARTS; i++) { 66529fc5fdSAlistair Francis sysbus_init_child_obj(obj, "usart[*]", &s->usart[i], 67529fc5fdSAlistair Francis sizeof(s->usart[i]), TYPE_STM32F2XX_USART); 68529fc5fdSAlistair Francis } 69529fc5fdSAlistair Francis 70529fc5fdSAlistair Francis for (i = 0; i < STM_NUM_TIMERS; i++) { 71529fc5fdSAlistair Francis sysbus_init_child_obj(obj, "timer[*]", &s->timer[i], 72529fc5fdSAlistair Francis sizeof(s->timer[i]), TYPE_STM32F2XX_TIMER); 73529fc5fdSAlistair Francis } 74529fc5fdSAlistair Francis 75529fc5fdSAlistair Francis for (i = 0; i < STM_NUM_ADCS; i++) { 76529fc5fdSAlistair Francis sysbus_init_child_obj(obj, "adc[*]", &s->adc[i], sizeof(s->adc[i]), 77529fc5fdSAlistair Francis TYPE_STM32F2XX_ADC); 78529fc5fdSAlistair Francis } 79529fc5fdSAlistair Francis 80529fc5fdSAlistair Francis for (i = 0; i < STM_NUM_SPIS; i++) { 81529fc5fdSAlistair Francis sysbus_init_child_obj(obj, "spi[*]", &s->spi[i], sizeof(s->spi[i]), 82529fc5fdSAlistair Francis TYPE_STM32F2XX_SPI); 83529fc5fdSAlistair Francis } 84529fc5fdSAlistair Francis 85529fc5fdSAlistair Francis sysbus_init_child_obj(obj, "exti", &s->exti, sizeof(s->exti), 86529fc5fdSAlistair Francis TYPE_STM32F4XX_EXTI); 87529fc5fdSAlistair Francis } 88529fc5fdSAlistair Francis 89529fc5fdSAlistair Francis static void stm32f405_soc_realize(DeviceState *dev_soc, Error **errp) 90529fc5fdSAlistair Francis { 91529fc5fdSAlistair Francis STM32F405State *s = STM32F405_SOC(dev_soc); 92529fc5fdSAlistair Francis MemoryRegion *system_memory = get_system_memory(); 93529fc5fdSAlistair Francis DeviceState *dev, *armv7m; 94529fc5fdSAlistair Francis SysBusDevice *busdev; 95529fc5fdSAlistair Francis Error *err = NULL; 96529fc5fdSAlistair Francis int i; 97529fc5fdSAlistair Francis 98529fc5fdSAlistair Francis memory_region_init_ram(&s->flash, NULL, "STM32F405.flash", FLASH_SIZE, 99529fc5fdSAlistair Francis &err); 100529fc5fdSAlistair Francis if (err != NULL) { 101529fc5fdSAlistair Francis error_propagate(errp, err); 102529fc5fdSAlistair Francis return; 103529fc5fdSAlistair Francis } 104529fc5fdSAlistair Francis memory_region_init_alias(&s->flash_alias, NULL, "STM32F405.flash.alias", 105529fc5fdSAlistair Francis &s->flash, 0, FLASH_SIZE); 106529fc5fdSAlistair Francis 107529fc5fdSAlistair Francis memory_region_set_readonly(&s->flash, true); 108529fc5fdSAlistair Francis memory_region_set_readonly(&s->flash_alias, true); 109529fc5fdSAlistair Francis 110529fc5fdSAlistair Francis memory_region_add_subregion(system_memory, FLASH_BASE_ADDRESS, &s->flash); 111529fc5fdSAlistair Francis memory_region_add_subregion(system_memory, 0, &s->flash_alias); 112529fc5fdSAlistair Francis 113529fc5fdSAlistair Francis memory_region_init_ram(&s->sram, NULL, "STM32F405.sram", SRAM_SIZE, 114529fc5fdSAlistair Francis &err); 115529fc5fdSAlistair Francis if (err != NULL) { 116529fc5fdSAlistair Francis error_propagate(errp, err); 117529fc5fdSAlistair Francis return; 118529fc5fdSAlistair Francis } 119529fc5fdSAlistair Francis memory_region_add_subregion(system_memory, SRAM_BASE_ADDRESS, &s->sram); 120529fc5fdSAlistair Francis 121529fc5fdSAlistair Francis armv7m = DEVICE(&s->armv7m); 122529fc5fdSAlistair Francis qdev_prop_set_uint32(armv7m, "num-irq", 96); 123529fc5fdSAlistair Francis qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type); 124529fc5fdSAlistair Francis qdev_prop_set_bit(armv7m, "enable-bitband", true); 125529fc5fdSAlistair Francis object_property_set_link(OBJECT(&s->armv7m), OBJECT(system_memory), 126529fc5fdSAlistair Francis "memory", &error_abort); 127529fc5fdSAlistair Francis object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err); 128529fc5fdSAlistair Francis if (err != NULL) { 129529fc5fdSAlistair Francis error_propagate(errp, err); 130529fc5fdSAlistair Francis return; 131529fc5fdSAlistair Francis } 132529fc5fdSAlistair Francis 133529fc5fdSAlistair Francis /* System configuration controller */ 134529fc5fdSAlistair Francis dev = DEVICE(&s->syscfg); 135529fc5fdSAlistair Francis object_property_set_bool(OBJECT(&s->syscfg), true, "realized", &err); 136529fc5fdSAlistair Francis if (err != NULL) { 137529fc5fdSAlistair Francis error_propagate(errp, err); 138529fc5fdSAlistair Francis return; 139529fc5fdSAlistair Francis } 140529fc5fdSAlistair Francis busdev = SYS_BUS_DEVICE(dev); 141529fc5fdSAlistair Francis sysbus_mmio_map(busdev, 0, SYSCFG_ADD); 142529fc5fdSAlistair Francis sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, SYSCFG_IRQ)); 143529fc5fdSAlistair Francis 144529fc5fdSAlistair Francis /* Attach UART (uses USART registers) and USART controllers */ 145529fc5fdSAlistair Francis for (i = 0; i < STM_NUM_USARTS; i++) { 146529fc5fdSAlistair Francis dev = DEVICE(&(s->usart[i])); 147529fc5fdSAlistair Francis qdev_prop_set_chr(dev, "chardev", serial_hd(i)); 148529fc5fdSAlistair Francis object_property_set_bool(OBJECT(&s->usart[i]), true, "realized", &err); 149529fc5fdSAlistair Francis if (err != NULL) { 150529fc5fdSAlistair Francis error_propagate(errp, err); 151529fc5fdSAlistair Francis return; 152529fc5fdSAlistair Francis } 153529fc5fdSAlistair Francis busdev = SYS_BUS_DEVICE(dev); 154529fc5fdSAlistair Francis sysbus_mmio_map(busdev, 0, usart_addr[i]); 155529fc5fdSAlistair Francis sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, usart_irq[i])); 156529fc5fdSAlistair Francis } 157529fc5fdSAlistair Francis 158529fc5fdSAlistair Francis /* Timer 2 to 5 */ 159529fc5fdSAlistair Francis for (i = 0; i < STM_NUM_TIMERS; i++) { 160529fc5fdSAlistair Francis dev = DEVICE(&(s->timer[i])); 161529fc5fdSAlistair Francis qdev_prop_set_uint64(dev, "clock-frequency", 1000000000); 162529fc5fdSAlistair Francis object_property_set_bool(OBJECT(&s->timer[i]), true, "realized", &err); 163529fc5fdSAlistair Francis if (err != NULL) { 164529fc5fdSAlistair Francis error_propagate(errp, err); 165529fc5fdSAlistair Francis return; 166529fc5fdSAlistair Francis } 167529fc5fdSAlistair Francis busdev = SYS_BUS_DEVICE(dev); 168529fc5fdSAlistair Francis sysbus_mmio_map(busdev, 0, timer_addr[i]); 169529fc5fdSAlistair Francis sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, timer_irq[i])); 170529fc5fdSAlistair Francis } 171529fc5fdSAlistair Francis 172529fc5fdSAlistair Francis /* ADC device, the IRQs are ORed together */ 173529fc5fdSAlistair Francis object_initialize_child(OBJECT(s), "adc-orirq", &s->adc_irqs, 174529fc5fdSAlistair Francis sizeof(s->adc_irqs), TYPE_OR_IRQ, 175529fc5fdSAlistair Francis &err, NULL); 176529fc5fdSAlistair Francis if (err != NULL) { 177529fc5fdSAlistair Francis error_propagate(errp, err); 178529fc5fdSAlistair Francis return; 179529fc5fdSAlistair Francis } 180529fc5fdSAlistair Francis object_property_set_int(OBJECT(&s->adc_irqs), STM_NUM_ADCS, 181529fc5fdSAlistair Francis "num-lines", &err); 182529fc5fdSAlistair Francis object_property_set_bool(OBJECT(&s->adc_irqs), true, "realized", &err); 183529fc5fdSAlistair Francis if (err != NULL) { 184529fc5fdSAlistair Francis error_propagate(errp, err); 185529fc5fdSAlistair Francis return; 186529fc5fdSAlistair Francis } 187529fc5fdSAlistair Francis qdev_connect_gpio_out(DEVICE(&s->adc_irqs), 0, 188529fc5fdSAlistair Francis qdev_get_gpio_in(armv7m, ADC_IRQ)); 189529fc5fdSAlistair Francis 190529fc5fdSAlistair Francis dev = DEVICE(&(s->adc[i])); 191529fc5fdSAlistair Francis object_property_set_bool(OBJECT(&s->adc[i]), true, "realized", &err); 192529fc5fdSAlistair Francis if (err != NULL) { 193529fc5fdSAlistair Francis error_propagate(errp, err); 194529fc5fdSAlistair Francis return; 195529fc5fdSAlistair Francis } 196529fc5fdSAlistair Francis busdev = SYS_BUS_DEVICE(dev); 197529fc5fdSAlistair Francis sysbus_mmio_map(busdev, 0, ADC_ADDR); 198529fc5fdSAlistair Francis sysbus_connect_irq(busdev, 0, 199529fc5fdSAlistair Francis qdev_get_gpio_in(DEVICE(&s->adc_irqs), i)); 200529fc5fdSAlistair Francis 201529fc5fdSAlistair Francis /* SPI devices */ 202529fc5fdSAlistair Francis for (i = 0; i < STM_NUM_SPIS; i++) { 203529fc5fdSAlistair Francis dev = DEVICE(&(s->spi[i])); 204529fc5fdSAlistair Francis object_property_set_bool(OBJECT(&s->spi[i]), true, "realized", &err); 205529fc5fdSAlistair Francis if (err != NULL) { 206529fc5fdSAlistair Francis error_propagate(errp, err); 207529fc5fdSAlistair Francis return; 208529fc5fdSAlistair Francis } 209529fc5fdSAlistair Francis busdev = SYS_BUS_DEVICE(dev); 210529fc5fdSAlistair Francis sysbus_mmio_map(busdev, 0, spi_addr[i]); 211529fc5fdSAlistair Francis sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, spi_irq[i])); 212529fc5fdSAlistair Francis } 213529fc5fdSAlistair Francis 214529fc5fdSAlistair Francis /* EXTI device */ 215529fc5fdSAlistair Francis dev = DEVICE(&s->exti); 216529fc5fdSAlistair Francis object_property_set_bool(OBJECT(&s->exti), true, "realized", &err); 217529fc5fdSAlistair Francis if (err != NULL) { 218529fc5fdSAlistair Francis error_propagate(errp, err); 219529fc5fdSAlistair Francis return; 220529fc5fdSAlistair Francis } 221529fc5fdSAlistair Francis busdev = SYS_BUS_DEVICE(dev); 222529fc5fdSAlistair Francis sysbus_mmio_map(busdev, 0, EXTI_ADDR); 223529fc5fdSAlistair Francis for (i = 0; i < 16; i++) { 224529fc5fdSAlistair Francis sysbus_connect_irq(busdev, i, qdev_get_gpio_in(armv7m, exti_irq[i])); 225529fc5fdSAlistair Francis } 226529fc5fdSAlistair Francis for (i = 0; i < 16; i++) { 227529fc5fdSAlistair Francis qdev_connect_gpio_out(DEVICE(&s->syscfg), i, qdev_get_gpio_in(dev, i)); 228529fc5fdSAlistair Francis } 229529fc5fdSAlistair Francis 230529fc5fdSAlistair Francis create_unimplemented_device("timer[7]", 0x40001400, 0x400); 231529fc5fdSAlistair Francis create_unimplemented_device("timer[12]", 0x40001800, 0x400); 232529fc5fdSAlistair Francis create_unimplemented_device("timer[6]", 0x40001000, 0x400); 233529fc5fdSAlistair Francis create_unimplemented_device("timer[13]", 0x40001C00, 0x400); 234529fc5fdSAlistair Francis create_unimplemented_device("timer[14]", 0x40002000, 0x400); 235529fc5fdSAlistair Francis create_unimplemented_device("RTC and BKP", 0x40002800, 0x400); 236529fc5fdSAlistair Francis create_unimplemented_device("WWDG", 0x40002C00, 0x400); 237529fc5fdSAlistair Francis create_unimplemented_device("IWDG", 0x40003000, 0x400); 238529fc5fdSAlistair Francis create_unimplemented_device("I2S2ext", 0x40003000, 0x400); 239529fc5fdSAlistair Francis create_unimplemented_device("I2S3ext", 0x40004000, 0x400); 240529fc5fdSAlistair Francis create_unimplemented_device("I2C1", 0x40005400, 0x400); 241529fc5fdSAlistair Francis create_unimplemented_device("I2C2", 0x40005800, 0x400); 242529fc5fdSAlistair Francis create_unimplemented_device("I2C3", 0x40005C00, 0x400); 243529fc5fdSAlistair Francis create_unimplemented_device("CAN1", 0x40006400, 0x400); 244529fc5fdSAlistair Francis create_unimplemented_device("CAN2", 0x40006800, 0x400); 245529fc5fdSAlistair Francis create_unimplemented_device("PWR", 0x40007000, 0x400); 246529fc5fdSAlistair Francis create_unimplemented_device("DAC", 0x40007400, 0x400); 247529fc5fdSAlistair Francis create_unimplemented_device("timer[1]", 0x40010000, 0x400); 248529fc5fdSAlistair Francis create_unimplemented_device("timer[8]", 0x40010400, 0x400); 249529fc5fdSAlistair Francis create_unimplemented_device("SDIO", 0x40012C00, 0x400); 250529fc5fdSAlistair Francis create_unimplemented_device("timer[9]", 0x40014000, 0x400); 251529fc5fdSAlistair Francis create_unimplemented_device("timer[10]", 0x40014400, 0x400); 252529fc5fdSAlistair Francis create_unimplemented_device("timer[11]", 0x40014800, 0x400); 253529fc5fdSAlistair Francis create_unimplemented_device("GPIOA", 0x40020000, 0x400); 254529fc5fdSAlistair Francis create_unimplemented_device("GPIOB", 0x40020400, 0x400); 255529fc5fdSAlistair Francis create_unimplemented_device("GPIOC", 0x40020800, 0x400); 256529fc5fdSAlistair Francis create_unimplemented_device("GPIOD", 0x40020C00, 0x400); 257529fc5fdSAlistair Francis create_unimplemented_device("GPIOE", 0x40021000, 0x400); 258529fc5fdSAlistair Francis create_unimplemented_device("GPIOF", 0x40021400, 0x400); 259529fc5fdSAlistair Francis create_unimplemented_device("GPIOG", 0x40021800, 0x400); 260529fc5fdSAlistair Francis create_unimplemented_device("GPIOH", 0x40021C00, 0x400); 261529fc5fdSAlistair Francis create_unimplemented_device("GPIOI", 0x40022000, 0x400); 262529fc5fdSAlistair Francis create_unimplemented_device("CRC", 0x40023000, 0x400); 263529fc5fdSAlistair Francis create_unimplemented_device("RCC", 0x40023800, 0x400); 264529fc5fdSAlistair Francis create_unimplemented_device("Flash Int", 0x40023C00, 0x400); 265529fc5fdSAlistair Francis create_unimplemented_device("BKPSRAM", 0x40024000, 0x400); 266529fc5fdSAlistair Francis create_unimplemented_device("DMA1", 0x40026000, 0x400); 267529fc5fdSAlistair Francis create_unimplemented_device("DMA2", 0x40026400, 0x400); 268529fc5fdSAlistair Francis create_unimplemented_device("Ethernet", 0x40028000, 0x1400); 269529fc5fdSAlistair Francis create_unimplemented_device("USB OTG HS", 0x40040000, 0x30000); 270529fc5fdSAlistair Francis create_unimplemented_device("USB OTG FS", 0x50000000, 0x31000); 271529fc5fdSAlistair Francis create_unimplemented_device("DCMI", 0x50050000, 0x400); 272529fc5fdSAlistair Francis create_unimplemented_device("RNG", 0x50060800, 0x400); 273529fc5fdSAlistair Francis } 274529fc5fdSAlistair Francis 275529fc5fdSAlistair Francis static Property stm32f405_soc_properties[] = { 276529fc5fdSAlistair Francis DEFINE_PROP_STRING("cpu-type", STM32F405State, cpu_type), 277529fc5fdSAlistair Francis DEFINE_PROP_END_OF_LIST(), 278529fc5fdSAlistair Francis }; 279529fc5fdSAlistair Francis 280529fc5fdSAlistair Francis static void stm32f405_soc_class_init(ObjectClass *klass, void *data) 281529fc5fdSAlistair Francis { 282529fc5fdSAlistair Francis DeviceClass *dc = DEVICE_CLASS(klass); 283529fc5fdSAlistair Francis 284529fc5fdSAlistair Francis dc->realize = stm32f405_soc_realize; 285*4f67d30bSMarc-André Lureau device_class_set_props(dc, stm32f405_soc_properties); 286529fc5fdSAlistair Francis /* No vmstate or reset required: device has no internal state */ 287529fc5fdSAlistair Francis } 288529fc5fdSAlistair Francis 289529fc5fdSAlistair Francis static const TypeInfo stm32f405_soc_info = { 290529fc5fdSAlistair Francis .name = TYPE_STM32F405_SOC, 291529fc5fdSAlistair Francis .parent = TYPE_SYS_BUS_DEVICE, 292529fc5fdSAlistair Francis .instance_size = sizeof(STM32F405State), 293529fc5fdSAlistair Francis .instance_init = stm32f405_soc_initfn, 294529fc5fdSAlistair Francis .class_init = stm32f405_soc_class_init, 295529fc5fdSAlistair Francis }; 296529fc5fdSAlistair Francis 297529fc5fdSAlistair Francis static void stm32f405_soc_types(void) 298529fc5fdSAlistair Francis { 299529fc5fdSAlistair Francis type_register_static(&stm32f405_soc_info); 300529fc5fdSAlistair Francis } 301529fc5fdSAlistair Francis 302529fc5fdSAlistair Francis type_init(stm32f405_soc_types) 303