diff --git a/drivers/Kconfig b/drivers/Kconfig index 7944d205214..b4f517c8060 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -69,4 +69,6 @@ source "drivers/sensor/Kconfig" source "drivers/counter/Kconfig" +source "drivers/dma/Kconfig" + endmenu diff --git a/drivers/Makefile b/drivers/Makefile index 5d911ac5bde..dcae986e9bc 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -27,3 +27,4 @@ obj-$(CONFIG_IPM) += ipm/ obj-$(CONFIG_SENSOR) += sensor/ obj-$(CONFIG_AIO_COMPARATOR) += aio/ obj-$(CONFIG_PINMUX) += pinmux/ +obj-$(CONFIG_DMA) += dma/ diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig new file mode 100644 index 00000000000..6596ad11414 --- /dev/null +++ b/drivers/dma/Kconfig @@ -0,0 +1,47 @@ +# Kconfig - DMA configuration options +# +# +# Copyright (c) 2016 Intel Corporation +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +# +# DMA options +# +menuconfig DMA + bool + prompt "DMA driver Configuration" + default n + +if DMA +menuconfig DMA_QMSI + bool "Enable QMSI DMA driver" + default n + depends on QMSI + help + QMSI DMA driver. + +config DMA_0_NAME + string "Device name for QMSI DMA Controller" + default "DMA_0" + help + Device name for the QMSI DMA Controller. + +config DMA_0_IRQ_PRI + int "IRQ Priority for DMA" + default 3 + help + IRQ Priority for the DMA Controller. + +endif # DMA diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile new file mode 100644 index 00000000000..67a1131e805 --- /dev/null +++ b/drivers/dma/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_DMA_QMSI) += dma_qmsi.o diff --git a/drivers/dma/dma_qmsi.c b/drivers/dma/dma_qmsi.c new file mode 100644 index 00000000000..167395a25b6 --- /dev/null +++ b/drivers/dma/dma_qmsi.c @@ -0,0 +1,206 @@ +/* + * Copyright (c) 2016 Intel Corporation. + * + * Licensed 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. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include "qm_dma.h" +#include "qm_isr.h" +#include "clk.h" + +struct dma_qmsi_config_info { + qm_dma_t instance; /* Controller instance. */ + qm_dma_channel_id_t channel[QM_DMA_CHANNEL_NUM]; +}; + +struct dma_qmsi_context { + uint32_t index; + struct device *dev; +}; + +struct dma_qmsi_driver_data { + void (*transfer[QM_DMA_CHANNEL_NUM])(struct device *dev, void *data); + void (*error[QM_DMA_CHANNEL_NUM])(struct device *dev, void *data); + void *callback_data[QM_DMA_CHANNEL_NUM]; +}; + + +static struct dma_qmsi_context dma_context[QM_DMA_CHANNEL_NUM]; +static void dma_qmsi_config(struct device *dev); + +static void dma_callback(void *callback_context, uint32_t len, + int error_code) +{ + struct dma_qmsi_driver_data *data; + uint32_t channel; + struct dma_qmsi_context *context = callback_context; + + channel = context->index; + data = context->dev->driver_data; + if (error_code != 0) { + data->error[channel](context->dev, + data->callback_data[channel]); + return; + } + + data->transfer[channel](context->dev, data->callback_data[channel]); +} + +static int dma_qmsi_channel_config(struct device *dev, uint32_t channel, + struct dma_channel_config *config) +{ + qm_dma_channel_config_t qmsi_cfg; + struct dma_qmsi_config_info *info = dev->config->config_info; + struct dma_qmsi_driver_data *data = dev->driver_data; + + info->channel[channel] = channel; + + qmsi_cfg.handshake_interface = config->handshake_interface; + qmsi_cfg.handshake_polarity = config->handshake_polarity; + qmsi_cfg.source_transfer_width = config->source_transfer_width; + qmsi_cfg.channel_direction = config->channel_direction; + qmsi_cfg.destination_burst_length = config->destination_burst_length; + qmsi_cfg.destination_transfer_width = + config->destination_transfer_width; + qmsi_cfg.source_burst_length = config->source_burst_length; + + data->callback_data[channel] = config->callback_data; + data->transfer[channel] = config->dma_transfer; + data->error[channel] = config->dma_error; + + dma_context[channel].index = channel; + dma_context[channel].dev = dev; + + qmsi_cfg.callback_context = &dma_context[channel]; + qmsi_cfg.client_callback = dma_callback; + + return qm_dma_channel_set_config(info->instance, channel, &qmsi_cfg); +} + +static int dma_qmsi_transfer_config(struct device *dev, uint32_t channel, + struct dma_transfer_config *config) +{ + struct dma_qmsi_config_info *info = dev->config->config_info; + + return qm_dma_transfer_set_config(info->instance, channel, + (qm_dma_transfer_t *)config); +} + +static int dma_qmsi_transfer_start(struct device *dev, uint32_t channel) +{ + struct dma_qmsi_config_info *info = dev->config->config_info; + + return qm_dma_transfer_start(info->instance, channel); +} + +static int dma_qmsi_transfer_stop(struct device *dev, uint32_t channel) +{ + struct dma_qmsi_config_info *info = dev->config->config_info; + + return qm_dma_transfer_terminate(info->instance, channel); +} + +static struct dma_driver_api dma_funcs = { + .channel_config = dma_qmsi_channel_config, + .transfer_config = dma_qmsi_transfer_config, + .transfer_start = dma_qmsi_transfer_start, + .transfer_stop = dma_qmsi_transfer_stop +}; + +int dma_qmsi_init(struct device *dev) +{ + struct dma_qmsi_config_info *info = dev->config->config_info; + + dma_qmsi_config(dev); + qm_dma_init(info->instance); + return 0; +} + +static struct dma_qmsi_config_info dma_qmsi_config_data = { + .instance = QM_DMA_0, +}; + +static struct dma_qmsi_driver_data dma_qmsi_dev_data; + + +DEVICE_AND_API_INIT(dma_qmsi, CONFIG_DMA_0_NAME, + &dma_qmsi_init, &dma_qmsi_dev_data, &dma_qmsi_config_data, + SECONDARY, CONFIG_KERNEL_INIT_PRIORITY_DEVICE, + (void *)&dma_funcs); + +static void dma_qmsi_config(struct device *dev) +{ + ARG_UNUSED(dev); + + IRQ_CONNECT(QM_IRQ_DMA_0, CONFIG_DMA_0_IRQ_PRI, + qm_dma_0_isr_0, DEVICE_GET(dma_qmsi), 0); + irq_enable(QM_IRQ_DMA_0); + QM_SCSS_INT->int_dma_channel_0_mask &= ~BIT(0); + + IRQ_CONNECT(QM_IRQ_DMA_1, CONFIG_DMA_0_IRQ_PRI, + qm_dma_0_isr_1, DEVICE_GET(dma_qmsi), 0); + irq_enable(QM_IRQ_DMA_1); + QM_SCSS_INT->int_dma_channel_1_mask &= ~BIT(0); + +#if (CONFIG_SOC_QUARK_SE) + + IRQ_CONNECT(QM_IRQ_DMA_2, CONFIG_DMA_0_IRQ_PRI, + qm_dma_0_isr_2, DEVICE_GET(dma_qmsi), 0); + irq_enable(QM_IRQ_DMA_2); + QM_SCSS_INT->int_dma_channel_2_mask &= ~BIT(0); + + IRQ_CONNECT(QM_IRQ_DMA_3, CONFIG_DMA_0_IRQ_PRI, + qm_dma_0_isr_3, DEVICE_GET(dma_qmsi), 0); + irq_enable(QM_IRQ_DMA_3); + QM_SCSS_INT->int_dma_channel_3_mask &= ~BIT(0); + + IRQ_CONNECT(QM_IRQ_DMA_4, CONFIG_DMA_0_IRQ_PRI, + qm_dma_0_isr_4, DEVICE_GET(dma_qmsi), 0); + irq_enable(QM_IRQ_DMA_4); + QM_SCSS_INT->int_dma_channel_4_mask &= ~BIT(0); + + IRQ_CONNECT(QM_IRQ_DMA_5, CONFIG_DMA_0_IRQ_PRI, + qm_dma_0_isr_5, DEVICE_GET(dma_qmsi), 0); + irq_enable(QM_IRQ_DMA_5); + QM_SCSS_INT->int_dma_channel_5_mask &= ~BIT(0); + + IRQ_CONNECT(QM_IRQ_DMA_6, CONFIG_DMA_0_IRQ_PRI, + qm_dma_0_isr_6, DEVICE_GET(dma_qmsi), 0); + irq_enable(QM_IRQ_DMA_6); + QM_SCSS_INT->int_dma_channel_6_mask &= ~BIT(0); + + IRQ_CONNECT(QM_IRQ_DMA_7, CONFIG_DMA_0_IRQ_PRI, + qm_dma_0_isr_7, DEVICE_GET(dma_qmsi), 0); + irq_enable(QM_IRQ_DMA_7); + QM_SCSS_INT->int_dma_channel_7_mask &= ~BIT(0); + +#endif /* CONFIG_SOC_QUARK_SE */ + + IRQ_CONNECT(QM_IRQ_DMA_ERR, CONFIG_DMA_0_IRQ_PRI, + qm_dma_0_isr_err, DEVICE_GET(dma_qmsi), 0); + irq_enable(QM_IRQ_DMA_ERR); + QM_SCSS_INT->int_dma_error_mask &= ~BIT(0); + +} + + + diff --git a/ext/hal/qmsi/Kbuild b/ext/hal/qmsi/Kbuild index 8348b0e7269..4489900832d 100644 --- a/ext/hal/qmsi/Kbuild +++ b/ext/hal/qmsi/Kbuild @@ -15,6 +15,7 @@ obj-$(CONFIG_AON_COUNTER_QMSI) += drivers/qm_aon_counters.o obj-$(CONFIG_GPIO_QMSI) += drivers/qm_gpio.o obj-$(CONFIG_ADC_QMSI) += drivers/qm_adc.o obj-$(CONFIG_UART_QMSI) += drivers/qm_uart.o +obj-$(CONFIG_DMA_QMSI) += drivers/qm_dma.o obj-$(CONFIG_SPI_QMSI) += drivers/qm_spi.o obj-$(CONFIG_SOC_FLASH_QMSI) += drivers/qm_flash.o obj-$(CONFIG_PINMUX_DEV_QMSI) += drivers/qm_pinmux.o