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risc-v/espressif: Add Hardware RNG support

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Signed-off-by: Gustavo Henrique Nihei <gustavo.nihei@espressif.com>
This commit is contained in:
Gustavo Henrique Nihei 2023-03-29 18:58:16 -03:00 committed by Petro Karashchenko
parent cf90fa62b2
commit 5081cef2c9
9 changed files with 275 additions and 0 deletions
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3
arch/risc-v/src/espressif/Kconfig
View file

@ -18,6 +18,7 @@ config ESPRESSIF_ESP32C3
select ARCH_HAVE_BOOTLOADER
select ARCH_HAVE_MPU
select ARCH_HAVE_RESET
select ARCH_HAVE_RNG
select LIBC_ARCH_ATOMIC
select LIBC_ARCH_MEMCPY
select LIBC_ARCH_MEMCHR
@ -44,6 +45,7 @@ config ESPRESSIF_ESP32C6
select ARCH_HAVE_BOOTLOADER
select ARCH_HAVE_MPU
select ARCH_HAVE_RESET
select ARCH_HAVE_RNG
select LIBC_ARCH_MEMCPY
select LIBC_ARCH_MEMCHR
select LIBC_ARCH_MEMCMP
@ -68,6 +70,7 @@ config ESPRESSIF_ESP32H2
select ARCH_HAVE_BOOTLOADER
select ARCH_HAVE_MPU
select ARCH_HAVE_RESET
select ARCH_HAVE_RNG
select LIBC_ARCH_ATOMIC
select LIBC_ARCH_MEMCPY
select LIBC_ARCH_MEMCHR

4
arch/risc-v/src/espressif/Make.defs
View file

@ -42,6 +42,10 @@ ifeq ($(CONFIG_WATCHDOG),y)
CHIP_CSRCS += esp_wdt.c
endif
ifneq ($(CONFIG_DEV_RANDOM)$(CONFIG_DEV_URANDOM_ARCH),)
CHIP_CSRCS += esp_random.c
endif
#############################################################################
# Espressif HAL for 3rd Party Platforms
#############################################################################

122
arch/risc-v/src/espressif/esp_random.c Normal file
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@ -0,0 +1,122 @@
/****************************************************************************
* arch/risc-v/src/espressif/esp_random.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <nuttx/fs/fs.h>
#include <nuttx/drivers/drivers.h>
#include "esp_random.h"
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
static ssize_t esp_rng_read(struct file *filep, char *buffer, size_t buflen);
/****************************************************************************
* Private Data
****************************************************************************/
static const struct file_operations g_rngops =
{
.read = esp_rng_read, /* read */
};
/****************************************************************************
* Private functions
****************************************************************************/
/****************************************************************************
* Name: esp_rng_read
*
* Description:
* Fill a buffer with random bytes from hardware RNG.
*
* Input Parameters:
* filep - Pointer to a file structure instance.
* buffer - Pointer to buffer to fill with random numbers.
* buflen - Length of buffer in bytes.
*
* Returned Value:
* None.
*
****************************************************************************/
static ssize_t esp_rng_read(struct file *filep, char *buffer, size_t buflen)
{
UNUSED(filep);
esp_fill_random(buffer, buflen);
return (ssize_t)buflen;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: devrandom_register
*
* Description:
* Initialize the RNG hardware and register the /dev/random driver.
*
* Input Parameters:
* None.
*
* Returned Value:
* None.
*
****************************************************************************/
#ifdef CONFIG_DEV_RANDOM
void devrandom_register(void)
{
register_driver("/dev/random", &g_rngops, 0444, NULL);
}
#endif
/****************************************************************************
* Name: devurandom_register
*
* Description:
* Initialize the RNG hardware and register the /dev/urandom driver.
*
* Input Parameters:
* None.
*
* Returned Value:
* None.
*
****************************************************************************/
#ifdef CONFIG_DEV_URANDOM_ARCH
void devurandom_register(void)
{
register_driver("/dev/urandom", &g_rngops, 0444, NULL);
}
#endif

1
arch/risc-v/src/espressif/hal_esp32c3.mk
View file

@ -67,6 +67,7 @@ CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/efuse/$(CHIP_SERIES)/es
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/efuse/$(CHIP_SERIES)/esp_efuse_utility.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/cpu.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/esp_clk.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/hw_random.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/periph_ctrl.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/regi2c_ctrl.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/port/clk_tree_common.c

1
arch/risc-v/src/espressif/hal_esp32c6.mk
View file

@ -68,6 +68,7 @@ CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/efuse/$(CHIP_SERIES)/es
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/efuse/$(CHIP_SERIES)/esp_efuse_utility.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/cpu.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/esp_clk.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/hw_random.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/modem_clock.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/periph_ctrl.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/regi2c_ctrl.c

1
arch/risc-v/src/espressif/hal_esp32h2.mk
View file

@ -68,6 +68,7 @@ CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/efuse/$(CHIP_SERIES)/es
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/efuse/$(CHIP_SERIES)/esp_efuse_utility.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/cpu.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/esp_clk.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/hw_random.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/periph_ctrl.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/regi2c_ctrl.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/port/clk_tree_common.c

47
boards/risc-v/espressif/esp32c3-generic/configs/random/defconfig Normal file
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@ -0,0 +1,47 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
CONFIG_ARCH="risc-v"
CONFIG_ARCH_BOARD="esp32c3-generic"
CONFIG_ARCH_BOARD_COMMON=y
CONFIG_ARCH_BOARD_ESP32C3_GENERIC=y
CONFIG_ARCH_CHIP="espressif"
CONFIG_ARCH_CHIP_ESPRESSIF=y
CONFIG_ARCH_INTERRUPTSTACK=2048
CONFIG_ARCH_RISCV=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_BOARD_LOOPSPERMSEC=15000
CONFIG_BUILTIN=y
CONFIG_DEV_URANDOM=y
CONFIG_DEV_ZERO=y
CONFIG_EXAMPLES_RANDOM=y
CONFIG_FS_PROCFS=y
CONFIG_IDLETHREAD_STACKSIZE=2048
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INTELHEX_BINARY=y
CONFIG_LIBC_PERROR_STDOUT=y
CONFIG_LIBC_STRERROR=y
CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_READLINE=y
CONFIG_NSH_STRERROR=y
CONFIG_PREALLOC_TIMERS=0
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_BACKTRACE=y
CONFIG_SCHED_WAITPID=y
CONFIG_START_DAY=29
CONFIG_START_MONTH=3
CONFIG_START_YEAR=2023
CONFIG_SYSTEM_DUMPSTACK=y
CONFIG_SYSTEM_NSH=y
CONFIG_TESTING_GETPRIME=y
CONFIG_TESTING_OSTEST=y
CONFIG_UART0_SERIAL_CONSOLE=y

48
boards/risc-v/espressif/esp32c6-generic/configs/random/defconfig Normal file
View file

@ -0,0 +1,48 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
CONFIG_ARCH="risc-v"
CONFIG_ARCH_BOARD="esp32c6-generic"
CONFIG_ARCH_BOARD_COMMON=y
CONFIG_ARCH_BOARD_ESP32C6_GENERIC=y
CONFIG_ARCH_CHIP="espressif"
CONFIG_ARCH_CHIP_ESPRESSIF=y
CONFIG_ARCH_INTERRUPTSTACK=2048
CONFIG_ARCH_RISCV=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_BOARD_LOOPSPERMSEC=15000
CONFIG_BUILTIN=y
CONFIG_DEV_URANDOM=y
CONFIG_DEV_ZERO=y
CONFIG_ESPRESSIF_ESP32C6=y
CONFIG_EXAMPLES_RANDOM=y
CONFIG_FS_PROCFS=y
CONFIG_IDLETHREAD_STACKSIZE=2048
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INTELHEX_BINARY=y
CONFIG_LIBC_PERROR_STDOUT=y
CONFIG_LIBC_STRERROR=y
CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_READLINE=y
CONFIG_NSH_STRERROR=y
CONFIG_PREALLOC_TIMERS=0
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_BACKTRACE=y
CONFIG_SCHED_WAITPID=y
CONFIG_START_DAY=29
CONFIG_START_MONTH=3
CONFIG_START_YEAR=2023
CONFIG_SYSTEM_DUMPSTACK=y
CONFIG_SYSTEM_NSH=y
CONFIG_TESTING_GETPRIME=y
CONFIG_TESTING_OSTEST=y
CONFIG_UART0_SERIAL_CONSOLE=y

48
boards/risc-v/espressif/esp32h2-generic/configs/random/defconfig Normal file
View file

@ -0,0 +1,48 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
CONFIG_ARCH="risc-v"
CONFIG_ARCH_BOARD="esp32h2-generic"
CONFIG_ARCH_BOARD_COMMON=y
CONFIG_ARCH_BOARD_ESP32H2_GENERIC=y
CONFIG_ARCH_CHIP="espressif"
CONFIG_ARCH_CHIP_ESPRESSIF=y
CONFIG_ARCH_INTERRUPTSTACK=2048
CONFIG_ARCH_RISCV=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_BOARD_LOOPSPERMSEC=15000
CONFIG_BUILTIN=y
CONFIG_DEV_URANDOM=y
CONFIG_DEV_ZERO=y
CONFIG_ESPRESSIF_ESP32H2=y
CONFIG_EXAMPLES_RANDOM=y
CONFIG_FS_PROCFS=y
CONFIG_IDLETHREAD_STACKSIZE=2048
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INTELHEX_BINARY=y
CONFIG_LIBC_PERROR_STDOUT=y
CONFIG_LIBC_STRERROR=y
CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_READLINE=y
CONFIG_NSH_STRERROR=y
CONFIG_PREALLOC_TIMERS=0
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_BACKTRACE=y
CONFIG_SCHED_WAITPID=y
CONFIG_START_DAY=29
CONFIG_START_MONTH=3
CONFIG_START_YEAR=2023
CONFIG_SYSTEM_DUMPSTACK=y
CONFIG_SYSTEM_NSH=y
CONFIG_TESTING_GETPRIME=y
CONFIG_TESTING_OSTEST=y
CONFIG_UART0_SERIAL_CONSOLE=y