From patchwork Sat Nov 11 14:33:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: ~aminier X-Patchwork-Id: 1867366 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Sb1rL3crvz1yRq for ; Thu, 23 Nov 2023 00:12:49 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1r5n0r-0006tG-1t; Wed, 22 Nov 2023 08:11:29 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1r5n0p-0006sW-9C; Wed, 22 Nov 2023 08:11:27 -0500 Received: from mail-b.sr.ht ([173.195.146.151]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1r5n0m-0001vh-2b; Wed, 22 Nov 2023 08:11:26 -0500 Authentication-Results: mail-b.sr.ht; dkim=none Received: from git.sr.ht (unknown [173.195.146.142]) by mail-b.sr.ht (Postfix) with ESMTPSA id 12A8F11EF31; Wed, 22 Nov 2023 13:11:20 +0000 (UTC) From: ~aminier Date: Sat, 11 Nov 2023 15:33:33 +0100 Subject: [PATCH qemu v2 1/1] Implement STM32L4x5 EXTI MIME-Version: 1.0 Message-ID: <170065867969.8823.8108107963720785285-1@git.sr.ht> X-Mailer: git.sr.ht In-Reply-To: <170065867969.8823.8108107963720785285-0@git.sr.ht> To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, alistair@alistair23.me, philmd@linaro.org, peter.maydell@linaro.org, ines.varhol@telecom-paris.fr, arnaud.minier@telecom-paris.fr Received-SPF: pass client-ip=173.195.146.151; envelope-from=outgoing@sr.ht; helo=mail-b.sr.ht X-Spam_score_int: 15 X-Spam_score: 1.5 X-Spam_bar: + X-Spam_report: (1.5 / 5.0 requ) BAYES_00=-1.9, DATE_IN_PAST_96_XX=3.405, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: ~aminier Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Arnaud Minier Signed-off-by: Arnaud Minier Signed-off-by: Inès Varhol --- hw/arm/Kconfig | 1 + hw/arm/stm32l4x5_soc.c | 65 ++++++- hw/misc/Kconfig | 3 + hw/misc/meson.build | 1 + hw/misc/stm32l4x5_exti.c | 303 ++++++++++++++++++++++++++++++ hw/misc/trace-events | 5 + include/hw/arm/stm32l4x5_soc.h | 3 + include/hw/misc/stm32l4x5_exti.h | 58 ++++++ tests/qtest/meson.build | 5 + tests/qtest/stm32l4x5_exti-test.c | 104 ++++++++++ 10 files changed, 546 insertions(+), 2 deletions(-) create mode 100644 hw/misc/stm32l4x5_exti.c create mode 100644 include/hw/misc/stm32l4x5_exti.h create mode 100644 tests/qtest/stm32l4x5_exti-test.c diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig index b95576fb0c..28d378ed83 100644 --- a/hw/arm/Kconfig +++ b/hw/arm/Kconfig @@ -458,6 +458,7 @@ config STM32L4X5_SOC bool select ARM_V7M select OR_IRQ + select STM32L4X5_EXTI config XLNX_ZYNQMP_ARM bool diff --git a/hw/arm/stm32l4x5_soc.c b/hw/arm/stm32l4x5_soc.c index 198d3f6d3e..8065050907 100644 --- a/hw/arm/stm32l4x5_soc.c +++ b/hw/arm/stm32l4x5_soc.c @@ -43,10 +43,51 @@ #define SRAM2_BASE_ADDRESS 0x10000000 #define SRAM2_SIZE (32 * KiB) +#define EXTI_ADDR 0x40010400 + +#define NUM_EXTI_IRQ 40 +/* Match exti line connections with their CPU IRQ number */ +/* See Vector Table (Reference Manual p.396) */ +static const int exti_irq[NUM_EXTI_IRQ] = { + 6, /* GPIO[0] */ + 7, /* GPIO[1] */ + 8, /* GPIO[2] */ + 9, /* GPIO[3] */ + 10, /* GPIO[4] */ + 23, 23, 23, 23, 23, /* GPIO[5..9] */ + 40, 40, 40, 40, 40, 40, /* GPIO[10..15] */ + 1, /* PVD */ + 67, /* OTG_FS_WKUP, Direct */ + 41, /* RTC_ALARM */ + 2, /* RTC_TAMP_STAMP2/CSS_LSE */ + 3, /* RTC wakeup timer */ + 63, /* COMP1 */ + 63, /* COMP2 */ + 31, /* I2C1 wakeup, Direct */ + 33, /* I2C2 wakeup, Direct */ + 72, /* I2C3 wakeup, Direct */ + 37, /* USART1 wakeup, Direct */ + 38, /* USART2 wakeup, Direct */ + 39, /* USART3 wakeup, Direct */ + 52, /* UART4 wakeup, Direct */ + 53, /* UART4 wakeup, Direct */ + 70, /* LPUART1 wakeup, Direct */ + 65, /* LPTIM1, Direct */ + 66, /* LPTIM2, Direct */ + 76, /* SWPMI1 wakeup, Direct */ + 1, /* PVM1 wakeup */ + 1, /* PVM2 wakeup */ + 1, /* PVM3 wakeup */ + 1, /* PVM4 wakeup */ + 78 /* LCD wakeup, Direct */ +}; + static void stm32l4x5_soc_initfn(Object *obj) { Stm32l4x5SocState *s = STM32L4X5_SOC(obj); + object_initialize_child(obj, "exti", &s->exti, TYPE_STM32L4X5_EXTI); + s->sysclk = qdev_init_clock_in(DEVICE(s), "sysclk", NULL, NULL, 0); s->refclk = qdev_init_clock_in(DEVICE(s), "refclk", NULL, NULL, 0); } @@ -57,7 +98,9 @@ static void stm32l4x5_soc_realize(DeviceState *dev_soc, Error **errp) Stm32l4x5SocState *s = STM32L4X5_SOC(dev_soc); const Stm32l4x5SocClass *sc = STM32L4X5_SOC_GET_CLASS(dev_soc); MemoryRegion *system_memory = get_system_memory(); - DeviceState *armv7m; + DeviceState *dev, *armv7m; + SysBusDevice *busdev; + int i; /* * We use s->refclk internally and only define it with qdev_init_clock_in() @@ -122,6 +165,25 @@ static void stm32l4x5_soc_realize(DeviceState *dev_soc, Error **errp) return; } + dev = DEVICE(&s->exti); + if (!sysbus_realize(SYS_BUS_DEVICE(&s->exti), errp)) { + return; + } + busdev = SYS_BUS_DEVICE(dev); + sysbus_mmio_map(busdev, 0, EXTI_ADDR); + for (i = 0; i < NUM_EXTI_IRQ; i++) { + /* IRQ seems not to be connected ? */ + sysbus_connect_irq(busdev, i, qdev_get_gpio_in(armv7m, exti_irq[i])); + } + + /* + * Uncomment when Syscfg is implemented + * for (i = 0; i < 16; i++) { + * qdev_connect_gpio_out(DEVICE(&s->syscfg), i, + * qdev_get_gpio_in(dev, i)); + * } + */ + /* APB1 BUS */ create_unimplemented_device("TIM2", 0x40000000, 0x400); create_unimplemented_device("TIM3", 0x40000400, 0x400); @@ -162,7 +224,6 @@ static void stm32l4x5_soc_realize(DeviceState *dev_soc, Error **errp) create_unimplemented_device("SYSCFG", 0x40010000, 0x30); create_unimplemented_device("VREFBUF", 0x40010030, 0x1D0); create_unimplemented_device("COMP", 0x40010200, 0x200); - create_unimplemented_device("EXTI", 0x40010400, 0x400); /* RESERVED: 0x40010800, 0x1400 */ create_unimplemented_device("FIREWALL", 0x40011C00, 0x400); /* RESERVED: 0x40012000, 0x800 */ diff --git a/hw/misc/Kconfig b/hw/misc/Kconfig index cc8a8c1418..3efe3dc2cc 100644 --- a/hw/misc/Kconfig +++ b/hw/misc/Kconfig @@ -87,6 +87,9 @@ config STM32F4XX_SYSCFG config STM32F4XX_EXTI bool +config STM32L4X5_EXTI + bool + config MIPS_ITU bool diff --git a/hw/misc/meson.build b/hw/misc/meson.build index 36c20d5637..16db6e228d 100644 --- a/hw/misc/meson.build +++ b/hw/misc/meson.build @@ -110,6 +110,7 @@ system_ss.add(when: 'CONFIG_XLNX_VERSAL_TRNG', if_true: files( system_ss.add(when: 'CONFIG_STM32F2XX_SYSCFG', if_true: files('stm32f2xx_syscfg.c')) system_ss.add(when: 'CONFIG_STM32F4XX_SYSCFG', if_true: files('stm32f4xx_syscfg.c')) system_ss.add(when: 'CONFIG_STM32F4XX_EXTI', if_true: files('stm32f4xx_exti.c')) +system_ss.add(when: 'CONFIG_STM32L4X5_EXTI', if_true: files('stm32l4x5_exti.c')) system_ss.add(when: 'CONFIG_MPS2_FPGAIO', if_true: files('mps2-fpgaio.c')) system_ss.add(when: 'CONFIG_MPS2_SCC', if_true: files('mps2-scc.c')) diff --git a/hw/misc/stm32l4x5_exti.c b/hw/misc/stm32l4x5_exti.c new file mode 100644 index 0000000000..117a1a31b4 --- /dev/null +++ b/hw/misc/stm32l4x5_exti.c @@ -0,0 +1,303 @@ +/* + * STM32L4x5 EXTI (Extended interrupts and events controller) + * + * Copyright (c) 2014 Alistair Francis + * Copyright (c) 2023 Arnaud Minier + * Copyright (c) 2023 Inès Varhol + * + * SPDX-License-Identifier: MIT + * + * 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. + */ + +/* stm32l4x5_exti implementation is derived from stm32f4xx_exti */ + +#include "qemu/osdep.h" +#include "qemu/log.h" +#include "trace.h" +#include "hw/irq.h" +#include "migration/vmstate.h" +#include "hw/misc/stm32l4x5_exti.h" + +#define EXTI_IMR1 0x00 +#define EXTI_EMR1 0x04 +#define EXTI_RTSR1 0x08 +#define EXTI_FTSR1 0x0C +#define EXTI_SWIER1 0x10 +#define EXTI_PR1 0x14 +#define EXTI_IMR2 0x20 +#define EXTI_EMR2 0x24 +#define EXTI_RTSR2 0x28 +#define EXTI_FTSR2 0x2C +#define EXTI_SWIER2 0x30 +#define EXTI_PR2 0x34 + +#define EXTI_NUM_GPIO_EVENT_IN_LINES 16 + +/* 0b11111111_10000010_00000000_00000000 */ +#define DIRECT_LINE_MASK1 0xFF820000 +/* 0b00000000_00000000_00000000_10000111 */ +#define DIRECT_LINE_MASK2 0x00000087 +/* 0b11111111_11111111_11111111_00000000 */ +#define RESERVED_BITS_MASK_EXTI_xMR2 0xFFFFFF00 + +/* 0b00000000_00000000_00000000_01111000 */ +#define ACTIVABLE_xR2 (~DIRECT_LINE_MASK2 & ~RESERVED_BITS_MASK_EXTI_xMR2) + +static void stm32l4x5_exti_reset_hold(Object *obj) +{ + Stm32l4x5ExtiState *s = STM32L4X5_EXTI(obj); + + s->imr[0] = DIRECT_LINE_MASK1; + s->emr[0] = 0x00000000; + s->rtsr[0] = 0x00000000; + s->ftsr[0] = 0x00000000; + s->swier[0] = 0x00000000; + s->pr[0] = 0x00000000; + + s->imr[1] = DIRECT_LINE_MASK2; + s->emr[1] = 0x00000000; + s->rtsr[1] = 0x00000000; + s->ftsr[1] = 0x00000000; + s->swier[1] = 0x00000000; + s->pr[1] = 0x00000000; +} + +static void stm32l4x5_exti_set_irq(void *opaque, int irq, int level) +{ + Stm32l4x5ExtiState *s = opaque; + const unsigned n = irq >= 32; + const int oirq = irq; + + trace_stm32l4x5_exti_set_irq(irq, level); + + if (irq >= 32) { + /* Shift the value to enable access in x2 registers. */ + irq -= 32; + } + + if (((1 << irq) & s->rtsr[n]) && level) { + /* Rising Edge */ + s->pr[n] |= 1 << irq; + } + + if (((1 << irq) & s->ftsr[n]) && !level) { + /* Falling Edge */ + s->pr[n] |= 1 << irq; + } + + if (!((1 << irq) & s->imr[n])) { + /* Interrupt is masked */ + return; + } + + qemu_irq_pulse(s->irq[oirq]); +} + +static uint64_t stm32l4x5_exti_read(void *opaque, hwaddr addr, + unsigned int size) +{ + Stm32l4x5ExtiState *s = opaque; + uint32_t r = 0; + const unsigned n = addr >= EXTI_IMR2; + + switch (addr) { + case EXTI_IMR1: + case EXTI_IMR2: + r = s->imr[n]; + break; + case EXTI_EMR1: + case EXTI_EMR2: + r = s->emr[n]; + break; + case EXTI_RTSR1: + case EXTI_RTSR2: + r = s->rtsr[n]; + break; + case EXTI_FTSR1: + case EXTI_FTSR2: + r = s->ftsr[n]; + break; + case EXTI_SWIER1: + case EXTI_SWIER2: + r = s->swier[n]; + break; + case EXTI_PR1: + case EXTI_PR2: + r = s->pr[n]; + break; + + default: + qemu_log_mask(LOG_GUEST_ERROR, + "STM32L4X5_exti_read: Bad offset 0x%x\n", (int)addr); + break; + } + + trace_stm32l4x5_exti_read(addr, r); + + return r; +} + +static void stm32l4x5_exti_write(void *opaque, hwaddr addr, + uint64_t val64, unsigned int size) +{ + Stm32l4x5ExtiState *s = opaque; + const uint32_t value = (uint32_t)val64; + + trace_stm32l4x5_exti_write(addr, value); + + switch (addr) { + case EXTI_IMR1: + s->imr[0] = value; + return; + case EXTI_EMR1: + s->emr[0] = value; + return; + case EXTI_RTSR1: + s->rtsr[0] = value & ~DIRECT_LINE_MASK1; + return; + case EXTI_FTSR1: + s->ftsr[0] = value & ~DIRECT_LINE_MASK1; + return; + case EXTI_SWIER1: + s->swier[0] = value & ~DIRECT_LINE_MASK1; + for (int i = 0; i < 32; i++) { + const uint32_t mask = 1 << i; + if (s->swier[0] & s->imr[0] & mask) { + s->pr[0] |= mask; + qemu_irq_pulse(s->irq[i]); + } + } + return; + case EXTI_PR1: + /* This bit is cleared by writing a 1 to it */ + s->pr[0] &= ~(value & ~DIRECT_LINE_MASK1); + /* Don't forget to clean software interrupts */ + s->swier[0] &= ~(value & ~DIRECT_LINE_MASK1); + for (int i = 0; i < 32; i++) { + const uint32_t mask = 1 << i; + if (!(s->pr[0] & mask)) { + qemu_irq_lower(s->irq[i]); + } + } + return; + case EXTI_IMR2: + s->imr[1] = value & ~RESERVED_BITS_MASK_EXTI_xMR2; + return; + case EXTI_EMR2: + s->emr[1] = value & ~RESERVED_BITS_MASK_EXTI_xMR2; + return; + case EXTI_RTSR2: + s->rtsr[1] = value & ACTIVABLE_xR2; + return; + case EXTI_FTSR2: + s->ftsr[1] = value & ACTIVABLE_xR2; + return; + case EXTI_SWIER2: + s->swier[1] = value & ACTIVABLE_xR2; + for (int i = 0; i < 8; i++) { + const uint32_t mask = 1 << i; + if (s->swier[1] & s->imr[1] & mask) { + s->pr[1] |= mask; + qemu_irq_raise(s->irq[32 + i]); + } + } + return; + case EXTI_PR2: + /* This bit is cleared by writing a 1 to it */ + s->pr[1] &= ~value | ~ACTIVABLE_xR2; + /* Don't forget to clean software interrupts */ + s->swier[1] &= ~value | ~ACTIVABLE_xR2; + for (int i = 0; i < 8; i++) { + const uint32_t mask = 1 << i; + if (!(s->pr[1] & mask)) { + qemu_irq_lower(s->irq[32 + i]); + } + } + return; + default: + qemu_log_mask(LOG_GUEST_ERROR, + "STM32L4X5_exti_write: Bad offset 0x%x\n", (int)addr); + } +} + +static const MemoryRegionOps stm32l4x5_exti_ops = { + .read = stm32l4x5_exti_read, + .write = stm32l4x5_exti_write, + .endianness = DEVICE_NATIVE_ENDIAN, + .impl.min_access_size = 4, + .impl.max_access_size = 4, + .impl.unaligned = false, + .valid.min_access_size = 4, + .valid.max_access_size = 4, + .valid.unaligned = false, +}; + +static void stm32l4x5_exti_init(Object *obj) +{ + Stm32l4x5ExtiState *s = STM32L4X5_EXTI(obj); + int i; + + for (i = 0; i < EXTI_NUM_INTERRUPT_OUT_LINES; i++) { + sysbus_init_irq(SYS_BUS_DEVICE(obj), &s->irq[i]); + } + + memory_region_init_io(&s->mmio, obj, &stm32l4x5_exti_ops, s, + TYPE_STM32L4X5_EXTI, 0x400); + sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->mmio); + + qdev_init_gpio_in(DEVICE(obj), stm32l4x5_exti_set_irq, + EXTI_NUM_GPIO_EVENT_IN_LINES); +} + +static const VMStateDescription vmstate_stm32l4x5_exti = { + .name = TYPE_STM32L4X5_EXTI, + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32_ARRAY(imr, Stm32l4x5ExtiState, EXTI_NUM_REGISTER), + VMSTATE_UINT32_ARRAY(emr, Stm32l4x5ExtiState, EXTI_NUM_REGISTER), + VMSTATE_UINT32_ARRAY(rtsr, Stm32l4x5ExtiState, EXTI_NUM_REGISTER), + VMSTATE_UINT32_ARRAY(ftsr, Stm32l4x5ExtiState, EXTI_NUM_REGISTER), + VMSTATE_UINT32_ARRAY(swier, Stm32l4x5ExtiState, EXTI_NUM_REGISTER), + VMSTATE_UINT32_ARRAY(pr, Stm32l4x5ExtiState, EXTI_NUM_REGISTER), + VMSTATE_END_OF_LIST() + } +}; + +static void stm32l4x5_exti_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + ResettableClass *rc = RESETTABLE_CLASS(klass); + + dc->vmsd = &vmstate_stm32l4x5_exti; + rc->phases.hold = stm32l4x5_exti_reset_hold; +} + +static const TypeInfo stm32l4x5_exti_types[] = { + { + .name = TYPE_STM32L4X5_EXTI, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(Stm32l4x5ExtiState), + .instance_init = stm32l4x5_exti_init, + .class_init = stm32l4x5_exti_class_init, + } +}; + +DEFINE_TYPES(stm32l4x5_exti_types) diff --git a/hw/misc/trace-events b/hw/misc/trace-events index 05ff692441..2f01c62c0e 100644 --- a/hw/misc/trace-events +++ b/hw/misc/trace-events @@ -163,6 +163,11 @@ stm32f4xx_exti_set_irq(int irq, int level) "Set EXTI: %d to %d" stm32f4xx_exti_read(uint64_t addr) "reg read: addr: 0x%" PRIx64 " " stm32f4xx_exti_write(uint64_t addr, uint64_t data) "reg write: addr: 0x%" PRIx64 " val: 0x%" PRIx64 "" +# stm32l4x5_exti.c +stm32l4x5_exti_set_irq(int irq, int level) "Set EXTI: %d to %d" +stm32l4x5_exti_read(uint64_t addr, uint64_t data) "reg read: addr: 0x%" PRIx64 " val: 0x%" PRIx64 "" +stm32l4x5_exti_write(uint64_t addr, uint64_t data) "reg write: addr: 0x%" PRIx64 " val: 0x%" PRIx64 "" + # tz-mpc.c tz_mpc_reg_read(uint32_t offset, uint64_t data, unsigned size) "TZ MPC regs read: offset 0x%x data 0x%" PRIx64 " size %u" tz_mpc_reg_write(uint32_t offset, uint64_t data, unsigned size) "TZ MPC regs write: offset 0x%x data 0x%" PRIx64 " size %u" diff --git a/include/hw/arm/stm32l4x5_soc.h b/include/hw/arm/stm32l4x5_soc.h index ab61c4b8a1..940941598e 100644 --- a/include/hw/arm/stm32l4x5_soc.h +++ b/include/hw/arm/stm32l4x5_soc.h @@ -32,6 +32,7 @@ #include "qemu/units.h" #include "hw/qdev-core.h" #include "hw/arm/armv7m.h" +#include "hw/misc/stm32l4x5_exti.h" #include "qom/object.h" #define TYPE_STM32L4X5_SOC "stm32l4x5-soc" @@ -45,6 +46,8 @@ struct Stm32l4x5SocState { ARMv7MState armv7m; + Stm32l4x5ExtiState exti; + MemoryRegion sram1; MemoryRegion sram2; MemoryRegion flash; diff --git a/include/hw/misc/stm32l4x5_exti.h b/include/hw/misc/stm32l4x5_exti.h new file mode 100644 index 0000000000..89b3e33b6b --- /dev/null +++ b/include/hw/misc/stm32l4x5_exti.h @@ -0,0 +1,58 @@ +/* + * STM32L4x5 EXTI (Extended interrupts and events controller) + * + * Copyright (c) 2014 Alistair Francis + * Copyright (c) 2023 Arnaud Minier + * Copyright (c) 2023 Inès Varhol + * + * SPDX-License-Identifier: MIT + * + * 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. + */ + +/* stm32l4x5_exti implementation is derived from stm32f4xx_exti */ + +#ifndef HW_STM32L4X5_EXTI_H +#define HW_STM32L4X5_EXTI_H + +#include "hw/sysbus.h" +#include "qom/object.h" + +#define TYPE_STM32L4X5_EXTI "stm32l4x5-exti" +OBJECT_DECLARE_SIMPLE_TYPE(Stm32l4x5ExtiState, STM32L4X5_EXTI) + +#define EXTI_NUM_INTERRUPT_OUT_LINES 40 +#define EXTI_NUM_REGISTER 2 + +struct Stm32l4x5ExtiState { + SysBusDevice parent_obj; + + MemoryRegion mmio; + + uint32_t imr[EXTI_NUM_REGISTER]; + uint32_t emr[EXTI_NUM_REGISTER]; + uint32_t rtsr[EXTI_NUM_REGISTER]; + uint32_t ftsr[EXTI_NUM_REGISTER]; + uint32_t swier[EXTI_NUM_REGISTER]; + uint32_t pr[EXTI_NUM_REGISTER]; + + qemu_irq irq[EXTI_NUM_INTERRUPT_OUT_LINES]; +}; + +#endif diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index c9945e69b1..bc62f201a8 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -194,6 +194,10 @@ qtests_aspeed = \ ['aspeed_hace-test', 'aspeed_smc-test', 'aspeed_gpio-test'] + +qtests_stm32l4x5 = \ + ['stm32l4x5_exti-test'] + qtests_arm = \ (config_all_devices.has_key('CONFIG_MPS2') ? ['sse-timer-test'] : []) + \ (config_all_devices.has_key('CONFIG_CMSDK_APB_DUALTIMER') ? ['cmsdk-apb-dualtimer-test'] : []) + \ @@ -207,6 +211,7 @@ qtests_arm = \ (config_all_devices.has_key('CONFIG_TPM_TIS_I2C') ? ['tpm-tis-i2c-test'] : []) + \ (config_all_devices.has_key('CONFIG_VEXPRESS') ? ['test-arm-mptimer'] : []) + \ (config_all_devices.has_key('CONFIG_MICROBIT') ? ['microbit-test'] : []) + \ + (config_all_devices.has_key('CONFIG_STM32L4X5_SOC') ? qtests_stm32l4x5 : []) + \ ['arm-cpu-features', 'boot-serial-test'] diff --git a/tests/qtest/stm32l4x5_exti-test.c b/tests/qtest/stm32l4x5_exti-test.c new file mode 100644 index 0000000000..b165111579 --- /dev/null +++ b/tests/qtest/stm32l4x5_exti-test.c @@ -0,0 +1,104 @@ +/* + * QTest testcase for STML4XX_EXTI + * + * Copyright (c) 2023 Arnaud Minier + * Copyright (c) 2023 Inès Varhol + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "libqtest-single.h" + +#define EXTI_BASE_ADDR 0x40010400 +#define EXTI_IMR1 0x00 +#define EXTI_EMR1 0x04 +#define EXTI_RTSR1 0x08 +#define EXTI_FTSR1 0x0C +#define EXTI_SWIER1 0x10 +#define EXTI_PR1 0x14 +#define EXTI_IMR2 0x20 +#define EXTI_EMR2 0x24 +#define EXTI_RTSR2 0x28 +#define EXTI_FTSR2 0x2C +#define EXTI_SWIER2 0x30 +#define EXTI_PR2 0x34 + +#define GPIO_0_IRQ 6 + +static void exti_writel(unsigned int offset, uint32_t value) +{ + writel(EXTI_BASE_ADDR + offset, value); +} + +static uint32_t exti_readl(unsigned int offset) +{ + return readl(EXTI_BASE_ADDR + offset); +} + +static void test_write_read(void) +{ + /* Test that we can write and retrieve a value from the device */ + exti_writel(EXTI_IMR1, 0xFFFFFFFF); + const uint32_t imr1 = exti_readl(EXTI_IMR1); + g_assert_cmpuint(imr1, ==, 0xFFFFFFFF); + + /* Test that reserved address are not written to */ + exti_writel(EXTI_IMR2, 0xFFFFFFFF); + const uint32_t imr2 = exti_readl(EXTI_IMR2); + g_assert_cmpuint(imr2, ==, 0x000000FF); +} + +static void test_direct_lines_write(void) +{ + /* Test that Direct Lines are not written to */ + exti_writel(EXTI_RTSR2, 0xFFFFFFFF); + const uint32_t rtsr2 = exti_readl(EXTI_RTSR2); + g_assert_cmpuint(rtsr2, ==, 0x00000078); +} + +static void test_software_interrupt(void) +{ + /* Test that we can launch irq using software in*/ + + g_assert_false(get_irq(GPIO_0_IRQ)); + /* Bit 0 corresponds to GPIO Px_0 */ + exti_writel(EXTI_IMR1, 0x00000001); + exti_writel(EXTI_SWIER1, 0x00000001); + uint32_t swier1 = exti_readl(EXTI_SWIER1); + uint32_t pr1 = exti_readl(EXTI_PR1); + + g_assert_cmpuint(swier1, ==, 0x00000001); + g_assert_cmpuint(pr1, ==, 0x00000001); + + g_assert_true(get_irq(GPIO_0_IRQ)); + + /* Reset the irq and check the registers state */ + exti_writel(EXTI_PR1, 0x00000001); + swier1 = exti_readl(EXTI_SWIER1); + pr1 = exti_readl(EXTI_PR1); + g_assert_cmpuint(swier1, ==, 0x00000000); + g_assert_cmpuint(pr1, ==, 0x00000000); +} + +int main(int argc, char **argv) +{ + int ret; + + g_test_init(&argc, &argv, NULL); + g_test_set_nonfatal_assertions(); + + qtest_add_func("stm32l4x5/exti/write_read", test_write_read); + qtest_add_func("stm32l4x5/exti/direct_lines_write", test_direct_lines_write); + /* Fails for now, not implemented */ + qtest_add_func("stm32l4x5/exti/software_interrupt", test_software_interrupt); + + qtest_start("-machine b-l475e-iot01a"); + /* The qom path is correct but does it do anything ?*/ + qtest_irq_intercept_in(global_qtest, "/machine/unattached/device[0]/exti"); + ret = g_test_run(); + qtest_end(); + + return ret; +}