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zephyr/drivers/dma/dma_stm32f4x.c

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/*
* Copyright (c) 2016 Linaro Limited.
*
* SPDX-License-Identifier: Apache-2.0
*
*/
#define SYS_LOG_LEVEL CONFIG_SYS_LOG_DMA_LEVEL
#include <board.h>
#include <device.h>
#include <dma.h>
#include <errno.h>
#include <init.h>
#include <logging/sys_log.h>
#include <stdio.h>
#include <string.h>
#include <clock_control/stm32_clock_control.h>
#define DMA_STM32_MAX_STREAMS 8 /* Number of streams per controller */
#define DMA_STM32_MAX_DEVS 2 /* Number of controllers */
#define DMA_STM32_1 0 /* First DMA controller */
#define DMA_STM32_2 1 /* Second DMA controller */
#define DMA_STM32_IRQ_PRI CONFIG_DMA_0_IRQ_PRI
#define DMA_STM32_1_RX_CHANNEL_ID CONFIG_DMA_1_RX_SUB_CHANNEL_ID
#define DMA_STM32_1_TX_CHANNEL_ID CONFIG_DMA_1_TX_SUB_CHANNEL_ID
#define DMA_STM32_2_RX_CHANNEL_ID CONFIG_DMA_2_RX_SUB_CHANNEL_ID
#define DMA_STM32_2_TX_CHANNEL_ID CONFIG_DMA_2_TX_SUB_CHANNEL_ID
struct dma_stm32_stream_reg {
/* Shared registers */
u32_t lisr;
u32_t hisr;
u32_t lifcr;
u32_t hifcr;
/* Per stream registers */
u32_t scr;
u32_t sndtr;
u32_t spar;
u32_t sm0ar;
u32_t sm1ar;
u32_t sfcr;
};
struct dma_stm32_stream {
u32_t direction;
struct device *dev;
struct dma_stm32_stream_reg regs;
bool busy;
void (*dma_callback)(struct device *dev, u32_t id,
int error_code);
};
static struct dma_stm32_device {
u32_t base;
struct device *clk;
struct dma_stm32_stream stream[DMA_STM32_MAX_STREAMS];
bool mem2mem;
u8_t channel_rx;
u8_t channel_tx;
} device_data[DMA_STM32_MAX_DEVS];
struct dma_stm32_config {
struct stm32_pclken pclken;
void (*config)(struct dma_stm32_device *);
};
/* DMA burst length */
#define BURST_TRANS_LENGTH_1 0
/* DMA direction */
#define DMA_STM32_DEV_TO_MEM 0
#define DMA_STM32_MEM_TO_DEV 1
#define DMA_STM32_MEM_TO_MEM 2
/* DMA priority level */
#define DMA_STM32_PRIORITY_LOW 0
#define DMA_STM32_PRIORITY_MEDIUM 1
#define DMA_STM32_PRIORITY_HIGH 2
#define DMA_STM32_PRIORITY_VERY_HIGH 3
/* DMA FIFO threshold selection */
#define DMA_STM32_FIFO_THRESHOLD_1QUARTERFULL 0
#define DMA_STM32_FIFO_THRESHOLD_HALFFULL 1
#define DMA_STM32_FIFO_THRESHOLD_3QUARTERSFULL 2
#define DMA_STM32_FIFO_THRESHOLD_FULL 3
/* Maximum data sent in single transfer (Bytes) */
#define DMA_STM32_MAX_DATA_ITEMS 0xffff
#define BITS_PER_LONG 32
#define GENMASK(h, l) (((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h))))
#define DMA_STM32_1_BASE 0x40026000
#define DMA_STM32_2_BASE 0x40026400
/* Shared registers */
#define DMA_STM32_LISR 0x00 /* DMA low int status reg */
#define DMA_STM32_HISR 0x04 /* DMA high int status reg */
#define DMA_STM32_LIFCR 0x08 /* DMA low int flag clear reg */
#define DMA_STM32_HIFCR 0x0c /* DMA high int flag clear reg */
#define DMA_STM32_FEI BIT(0) /* FIFO error interrupt */
#define RESERVED_1 BIT(1)
#define DMA_STM32_DMEI BIT(2) /* Direct mode error interrupt */
#define DMA_STM32_TEI BIT(3) /* Transfer error interrupt */
#define DMA_STM32_HTI BIT(4) /* Transfer half complete interrupt */
#define DMA_STM32_TCI BIT(5) /* Transfer complete interrupt */
/* DMA Stream x Configuration Register */
#define DMA_STM32_SCR(x) (0x10 + 0x18 * (x))
#define DMA_STM32_SCR_EN BIT(0) /* Stream Enable */
#define DMA_STM32_SCR_DMEIE BIT(1) /* Direct Mode Err Int En */
#define DMA_STM32_SCR_TEIE BIT(2) /* Transfer Error Int En */
#define DMA_STM32_SCR_HTIE BIT(3) /* Transfer 1/2 Comp Int En */
#define DMA_STM32_SCR_TCIE BIT(4) /* Transfer Comp Int En */
#define DMA_STM32_SCR_PFCTRL BIT(5) /* Peripheral Flow Controller */
#define DMA_STM32_SCR_DIR_MASK GENMASK(7, 6) /* Transfer direction */
#define DMA_STM32_SCR_CIRC BIT(8) /* Circular mode */
#define DMA_STM32_SCR_PINC BIT(9) /* Peripheral increment mode */
#define DMA_STM32_SCR_MINC BIT(10) /* Memory increment mode */
#define DMA_STM32_SCR_PSIZE_MASK GENMASK(12, 11) /* Periph data size */
#define DMA_STM32_SCR_MSIZE_MASK GENMASK(14, 13) /* Memory data size */
#define DMA_STM32_SCR_PINCOS BIT(15) /* Periph inc offset size */
#define DMA_STM32_SCR_PL_MASK GENMASK(17, 16) /* Priority level */
#define DMA_STM32_SCR_DBM BIT(18) /* Double Buffer Mode */
#define DMA_STM32_SCR_CT BIT(19) /* Target in double buffer */
#define DMA_STM32_SCR_PBURST_MASK GENMASK(22, 21) /* Periph burst size */
#define DMA_STM32_SCR_MBURST_MASK GENMASK(24, 23) /* Memory burst size */
/* Setting MACROS */
#define DMA_STM32_SCR_DIR(n) ((n & 0x3) << 6)
#define DMA_STM32_SCR_PSIZE(n) ((n & 0x3) << 11)
#define DMA_STM32_SCR_MSIZE(n) ((n & 0x3) << 13)
#define DMA_STM32_SCR_PL(n) ((n & 0x3) << 16)
#define DMA_STM32_SCR_PBURST(n) ((n & 0x3) << 21)
#define DMA_STM32_SCR_MBURST(n) ((n & 0x3) << 23)
#define DMA_STM32_SCR_REQ(n) ((n & 0x7) << 25)
/* Getting MACROS */
#define DMA_STM32_SCR_PSIZE_GET(n) ((n & DMA_STM32_SCR_PSIZE_MASK) >> 11)
#define DMA_STM32_SCR_CFG_MASK (DMA_STM32_SCR_PINC \
| DMA_STM32_SCR_MINC \
| DMA_STM32_SCR_PINCOS \
| DMA_STM32_SCR_PL_MASK)
#define DMA_STM32_SCR_IRQ_MASK (DMA_STM32_SCR_TCIE \
| DMA_STM32_SCR_TEIE \
| DMA_STM32_SCR_DMEIE)
/* DMA stream x number of data register (len) */
#define DMA_STM32_SNDTR(x) (0x14 + 0x18 * (x))
/* DMA stream peripheral address register (source) */
#define DMA_STM32_SPAR(x) (0x18 + 0x18 * (x))
/* DMA stream x memory 0 address register (destination) */
#define DMA_STM32_SM0AR(x) (0x1c + 0x18 * (x))
/* DMA stream x memory 1 address register (destination - double buffer) */
#define DMA_STM32_SM1AR(x) (0x20 + 0x18 * (x))
/* DMA stream x FIFO control register */
#define DMA_STM32_SFCR(x) (0x24 + 0x18 * (x))
#define DMA_STM32_SFCR_FTH_MASK GENMASK(1, 0) /* FIFO threshold */
#define DMA_STM32_SFCR_DMDIS BIT(2) /* Direct mode disable */
#define DMA_STM32_SFCR_STAT_MASK GENMASK(5, 3) /* FIFO status */
#define RESERVED_6 BIT(6) /* Reserved */
#define DMA_STM32_SFCR_FEIE BIT(7) /* FIFO error interrupt enable */
/* Setting MACROS */
#define DMA_STM32_SFCR_FTH(n) (n & DMA_STM32_SFCR_FTH_MASK)
#define DMA_STM32_SFCR_MASK (DMA_STM32_SFCR_FEIE \
| DMA_STM32_SFCR_DMDIS)
#define SYS_LOG_U32 __attribute((__unused__)) u32_t
static void dma_stm32_1_config(struct dma_stm32_device *ddata);
static void dma_stm32_2_config(struct dma_stm32_device *ddata);
static u32_t dma_stm32_read(struct dma_stm32_device *ddata, u32_t reg)
{
return sys_read32(ddata->base + reg);
}
static void dma_stm32_write(struct dma_stm32_device *ddata,
u32_t reg, u32_t val)
{
sys_write32(val, ddata->base + reg);
}
static void dma_stm32_dump_reg(struct dma_stm32_device *ddata, u32_t id)
{
SYS_LOG_INF("Using stream: %d\n", id);
SYS_LOG_INF("SCR: 0x%x \t(config)\n",
dma_stm32_read(ddata, DMA_STM32_SCR(id)));
SYS_LOG_INF("SNDTR: 0x%x \t(length)\n",
dma_stm32_read(ddata, DMA_STM32_SNDTR(id)));
SYS_LOG_INF("SPAR: 0x%x \t(source)\n",
dma_stm32_read(ddata, DMA_STM32_SPAR(id)));
SYS_LOG_INF("SM0AR: 0x%x \t(destination)\n",
dma_stm32_read(ddata, DMA_STM32_SM0AR(id)));
SYS_LOG_INF("SM1AR: 0x%x \t(destination (double buffer mode))\n",
dma_stm32_read(ddata, DMA_STM32_SM1AR(id)));
SYS_LOG_INF("SFCR: 0x%x \t(fifo control)\n",
dma_stm32_read(ddata, DMA_STM32_SFCR(id)));
}
static u32_t dma_stm32_irq_status(struct dma_stm32_device *ddata,
u32_t id)
{
u32_t irqs;
if (id & 4) {
irqs = dma_stm32_read(ddata, DMA_STM32_HISR);
} else {
irqs = dma_stm32_read(ddata, DMA_STM32_LISR);
}
return (irqs >> (((id & 2) << 3) | ((id & 1) * 6)));
}
static void dma_stm32_irq_clear(struct dma_stm32_device *ddata,
u32_t id, u32_t irqs)
{
irqs = irqs << (((id & 2) << 3) | ((id & 1) * 6));
if (id & 4) {
dma_stm32_write(ddata, DMA_STM32_HIFCR, irqs);
} else {
dma_stm32_write(ddata, DMA_STM32_LIFCR, irqs);
}
}
static void dma_stm32_irq_handler(void *arg, u32_t id)
{
struct device *dev = arg;
struct dma_stm32_device *ddata = dev->driver_data;
struct dma_stm32_stream *stream = &ddata->stream[id];
u32_t irqstatus, config, sfcr;
irqstatus = dma_stm32_irq_status(ddata, id);
config = dma_stm32_read(ddata, DMA_STM32_SCR(id));
sfcr = dma_stm32_read(ddata, DMA_STM32_SFCR(id));
/* Silently ignore spurious transfer half complete IRQ */
if (irqstatus & DMA_STM32_HTI) {
dma_stm32_irq_clear(ddata, id, DMA_STM32_HTI);
return;
}
stream->busy = false;
if ((irqstatus & DMA_STM32_TCI) && (config & DMA_STM32_SCR_TCIE)) {
dma_stm32_irq_clear(ddata, id, DMA_STM32_TCI);
stream->dma_callback(stream->dev, id, 0);
} else {
SYS_LOG_ERR("Internal error: IRQ status: 0x%x\n", irqstatus);
dma_stm32_irq_clear(ddata, id, irqstatus);
stream->dma_callback(stream->dev, id, -EIO);
}
}
static int dma_stm32_disable_stream(struct dma_stm32_device *ddata,
u32_t id)
{
u32_t config;
int count = 0;
int ret = 0;
for (;;) {
config = dma_stm32_read(ddata, DMA_STM32_SCR(id));
/* Stream already disabled */
if (!(config & DMA_STM32_SCR_EN)) {
return 0;
}
/* Try to disable stream */
dma_stm32_write(ddata, DMA_STM32_SCR(id),
config &= ~DMA_STM32_SCR_EN);
/* After trying for 5 seconds, give up */
k_sleep(K_SECONDS(5));
if (count++ > (5 * 1000) / 50) {
SYS_LOG_ERR("DMA error: Stream in use\n");
return -EBUSY;
}
}
return ret;
}
static int dma_stm32_config_devcpy(struct device *dev, u32_t id,
struct dma_config *config)
{
struct dma_stm32_device *ddata = dev->driver_data;
struct dma_stm32_stream_reg *regs = &ddata->stream[id].regs;
u32_t src_bus_width = dma_width_index(config->source_data_size);
u32_t dst_bus_width = dma_width_index(config->dest_data_size);
u32_t src_burst_size = dma_burst_index(config->source_burst_length);
u32_t dst_burst_size = dma_burst_index(config->dest_burst_length);
enum dma_channel_direction direction = config->channel_direction;
switch (direction) {
case MEMORY_TO_PERIPHERAL:
regs->scr = DMA_STM32_SCR_DIR(DMA_STM32_MEM_TO_DEV) |
DMA_STM32_SCR_PSIZE(dst_bus_width) |
DMA_STM32_SCR_MSIZE(src_bus_width) |
DMA_STM32_SCR_PBURST(dst_burst_size) |
DMA_STM32_SCR_MBURST(src_burst_size) |
DMA_STM32_SCR_REQ(ddata->channel_tx) |
DMA_STM32_SCR_MINC;
break;
case PERIPHERAL_TO_MEMORY:
regs->scr = DMA_STM32_SCR_DIR(DMA_STM32_DEV_TO_MEM) |
DMA_STM32_SCR_PSIZE(src_bus_width) |
DMA_STM32_SCR_MSIZE(dst_bus_width) |
DMA_STM32_SCR_PBURST(src_burst_size) |
DMA_STM32_SCR_MBURST(dst_burst_size) |
DMA_STM32_SCR_REQ(ddata->channel_rx);
break;
default:
SYS_LOG_ERR("DMA error: Direction not supported: %d",
direction);
return -EINVAL;
}
if (src_burst_size == BURST_TRANS_LENGTH_1 &&
dst_burst_size == BURST_TRANS_LENGTH_1) {
/* Enable 'direct' mode error IRQ, disable 'FIFO' error IRQ */
regs->scr |= DMA_STM32_SCR_DMEIE;
regs->sfcr &= ~DMA_STM32_SFCR_MASK;
} else {
/* Enable 'FIFO' error IRQ, disable 'direct' mode error IRQ */
regs->sfcr |= DMA_STM32_SFCR_MASK;
regs->scr &= ~DMA_STM32_SCR_DMEIE;
}
return 0;
}
static int dma_stm32_config_memcpy(struct device *dev, u32_t id)
{
struct dma_stm32_device *ddata = dev->driver_data;
struct dma_stm32_stream_reg *regs = &ddata->stream[id].regs;
regs->scr = DMA_STM32_SCR_DIR(DMA_STM32_MEM_TO_MEM) |
DMA_STM32_SCR_MINC | /* Memory increment mode */
DMA_STM32_SCR_PINC | /* Peripheral increment mode */
DMA_STM32_SCR_TCIE | /* Transfer comp IRQ enable */
DMA_STM32_SCR_TEIE; /* Transfer error IRQ enable */
regs->sfcr = DMA_STM32_SFCR_DMDIS | /* Direct mode disable */
DMA_STM32_SFCR_FTH(DMA_STM32_FIFO_THRESHOLD_FULL) |
DMA_STM32_SFCR_FEIE; /* FIFI error IRQ enable */
return 0;
}
static int dma_stm32_config(struct device *dev, u32_t id,
struct dma_config *config)
{
struct dma_stm32_device *ddata = dev->driver_data;
struct dma_stm32_stream *stream = &ddata->stream[id];
struct dma_stm32_stream_reg *regs = &ddata->stream[id].regs;
int ret;
if (stream->busy) {
return -EBUSY;
}
if (config->head_block->block_size > DMA_STM32_MAX_DATA_ITEMS) {
SYS_LOG_ERR("DMA error: Data size too big: %d\n",
config->head_block->block_size);
return -EINVAL;
}
stream->busy = true;
stream->dma_callback = config->dma_callback;
stream->direction = config->channel_direction;
if (stream->direction == MEMORY_TO_PERIPHERAL) {
regs->sm0ar = (u32_t)config->head_block->source_address;
regs->spar = (u32_t)config->head_block->dest_address;
} else {
regs->spar = (u32_t)config->head_block->source_address;
regs->sm0ar = (u32_t)config->head_block->dest_address;
}
if (stream->direction == MEMORY_TO_MEMORY) {
ret = dma_stm32_config_memcpy(dev, id);
} else {
ret = dma_stm32_config_devcpy(dev, id, config);
}
regs->sndtr = config->head_block->block_size;
return ret;
}
static int dma_stm32_start(struct device *dev, u32_t id)
{
struct dma_stm32_device *ddata = dev->driver_data;
struct dma_stm32_stream_reg *regs = &ddata->stream[id].regs;
u32_t irqstatus;
int ret;
ret = dma_stm32_disable_stream(ddata, id);
if (ret) {
return ret;
}
dma_stm32_write(ddata, DMA_STM32_SCR(id), regs->scr);
dma_stm32_write(ddata, DMA_STM32_SPAR(id), regs->spar);
dma_stm32_write(ddata, DMA_STM32_SM0AR(id), regs->sm0ar);
dma_stm32_write(ddata, DMA_STM32_SFCR(id), regs->sfcr);
dma_stm32_write(ddata, DMA_STM32_SM1AR(id), regs->sm1ar);
dma_stm32_write(ddata, DMA_STM32_SNDTR(id), regs->sndtr);
/* Clear remanent IRQs from previous transfers */
irqstatus = dma_stm32_irq_status(ddata, id);
if (irqstatus) {
dma_stm32_irq_clear(ddata, id, irqstatus);
}
dma_stm32_dump_reg(ddata, id);
/* Push the start button */
dma_stm32_write(ddata, DMA_STM32_SCR(id),
regs->scr | DMA_STM32_SCR_EN);
return 0;
}
static int dma_stm32_stop(struct device *dev, u32_t id)
{
struct dma_stm32_device *ddata = dev->driver_data;
struct dma_stm32_stream *stream = &ddata->stream[id];
u32_t scr, sfcr, irqstatus;
int ret;
/* Disable all IRQs */
scr = dma_stm32_read(ddata, DMA_STM32_SCR(id));
scr &= ~DMA_STM32_SCR_IRQ_MASK;
dma_stm32_write(ddata, DMA_STM32_SCR(id), scr);
sfcr = dma_stm32_read(ddata, DMA_STM32_SFCR(id));
sfcr &= ~DMA_STM32_SFCR_FEIE;
dma_stm32_write(ddata, DMA_STM32_SFCR(id), sfcr);
/* Disable stream */
ret = dma_stm32_disable_stream(ddata, id);
if (ret)
return ret;
/* Clear remanent IRQs from previous transfers */
irqstatus = dma_stm32_irq_status(ddata, id);
if (irqstatus) {
dma_stm32_irq_clear(ddata, id, irqstatus);
}
/* Finally, flag stream as free */
stream->busy = false;
return 0;
}
static int dma_stm32_init(struct device *dev)
{
struct dma_stm32_device *ddata = dev->driver_data;
const struct dma_stm32_config *cdata = dev->config->config_info;
int i;
for (i = 0; i < DMA_STM32_MAX_STREAMS; i++) {
ddata->stream[i].dev = dev;
ddata->stream[i].busy = false;
}
/* Enable DMA clock */
ddata->clk = device_get_binding(STM32_CLOCK_CONTROL_NAME);
__ASSERT_NO_MSG(ddata->clk);
clock_control_on(ddata->clk, (clock_control_subsys_t *) &cdata->pclken);
/* Set controller specific configuration */
cdata->config(ddata);
return 0;
}
static const struct dma_driver_api dma_funcs = {
.config = dma_stm32_config,
.start = dma_stm32_start,
.stop = dma_stm32_stop,
};
const struct dma_stm32_config dma_stm32_1_cdata = {
.pclken = { .bus = STM32_CLOCK_BUS_AHB1,
.enr = LL_AHB1_GRP1_PERIPH_DMA1 },
.config = dma_stm32_1_config,
};
DEVICE_AND_API_INIT(dma_stm32_1, CONFIG_DMA_1_NAME, &dma_stm32_init,
&device_data[DMA_STM32_1], &dma_stm32_1_cdata,
POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
(void *)&dma_funcs);
static const struct dma_stm32_config dma_stm32_2_cdata = {
.pclken = { .bus = STM32_CLOCK_BUS_AHB1,
.enr = LL_AHB1_GRP1_PERIPH_DMA2 },
.config = dma_stm32_2_config,
};
DEVICE_AND_API_INIT(dma_stm32_2, CONFIG_DMA_2_NAME, &dma_stm32_init,
&device_data[DMA_STM32_2], &dma_stm32_2_cdata,
POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
(void *)&dma_funcs);
static void dma_stm32_irq_0(void *arg) { dma_stm32_irq_handler(arg, 0); }
static void dma_stm32_irq_1(void *arg) { dma_stm32_irq_handler(arg, 1); }
static void dma_stm32_irq_2(void *arg) { dma_stm32_irq_handler(arg, 2); }
static void dma_stm32_irq_3(void *arg) { dma_stm32_irq_handler(arg, 3); }
static void dma_stm32_irq_4(void *arg) { dma_stm32_irq_handler(arg, 4); }
static void dma_stm32_irq_5(void *arg) { dma_stm32_irq_handler(arg, 5); }
static void dma_stm32_irq_6(void *arg) { dma_stm32_irq_handler(arg, 6); }
static void dma_stm32_irq_7(void *arg) { dma_stm32_irq_handler(arg, 7); }
static void dma_stm32_1_config(struct dma_stm32_device *ddata)
{
ddata->base = DMA_STM32_1_BASE;
ddata->channel_tx = DMA_STM32_1_TX_CHANNEL_ID;
ddata->channel_rx = DMA_STM32_1_RX_CHANNEL_ID;
IRQ_CONNECT(STM32F4_IRQ_DMA1_STREAM0, DMA_STM32_IRQ_PRI,
dma_stm32_irq_0, DEVICE_GET(dma_stm32_1), 0);
irq_enable(STM32F4_IRQ_DMA1_STREAM0);
IRQ_CONNECT(STM32F4_IRQ_DMA1_STREAM1, DMA_STM32_IRQ_PRI,
dma_stm32_irq_1, DEVICE_GET(dma_stm32_1), 0);
irq_enable(STM32F4_IRQ_DMA1_STREAM1);
IRQ_CONNECT(STM32F4_IRQ_DMA1_STREAM2, DMA_STM32_IRQ_PRI,
dma_stm32_irq_2, DEVICE_GET(dma_stm32_1), 0);
irq_enable(STM32F4_IRQ_DMA1_STREAM2);
IRQ_CONNECT(STM32F4_IRQ_DMA1_STREAM3, DMA_STM32_IRQ_PRI,
dma_stm32_irq_3, DEVICE_GET(dma_stm32_1), 0);
irq_enable(STM32F4_IRQ_DMA1_STREAM3);
IRQ_CONNECT(STM32F4_IRQ_DMA1_STREAM4, DMA_STM32_IRQ_PRI,
dma_stm32_irq_4, DEVICE_GET(dma_stm32_1), 0);
irq_enable(STM32F4_IRQ_DMA1_STREAM4);
IRQ_CONNECT(STM32F4_IRQ_DMA1_STREAM5, DMA_STM32_IRQ_PRI,
dma_stm32_irq_5, DEVICE_GET(dma_stm32_1), 0);
irq_enable(STM32F4_IRQ_DMA1_STREAM5);
IRQ_CONNECT(STM32F4_IRQ_DMA1_STREAM6, DMA_STM32_IRQ_PRI,
dma_stm32_irq_6, DEVICE_GET(dma_stm32_1), 0);
irq_enable(STM32F4_IRQ_DMA1_STREAM6);
IRQ_CONNECT(STM32F4_IRQ_DMA1_STREAM7, DMA_STM32_IRQ_PRI,
dma_stm32_irq_7, DEVICE_GET(dma_stm32_1), 0);
irq_enable(STM32F4_IRQ_DMA1_STREAM7);
}
static void dma_stm32_2_config(struct dma_stm32_device *ddata)
{
ddata->base = DMA_STM32_2_BASE;
ddata->mem2mem = true;
ddata->channel_tx = DMA_STM32_2_TX_CHANNEL_ID;
ddata->channel_rx = DMA_STM32_2_RX_CHANNEL_ID;
IRQ_CONNECT(STM32F4_IRQ_DMA2_STREAM0, DMA_STM32_IRQ_PRI,
dma_stm32_irq_0, DEVICE_GET(dma_stm32_2), 0);
irq_enable(STM32F4_IRQ_DMA2_STREAM0);
IRQ_CONNECT(STM32F4_IRQ_DMA2_STREAM1, DMA_STM32_IRQ_PRI,
dma_stm32_irq_1, DEVICE_GET(dma_stm32_2), 0);
irq_enable(STM32F4_IRQ_DMA2_STREAM1);
IRQ_CONNECT(STM32F4_IRQ_DMA2_STREAM2, DMA_STM32_IRQ_PRI,
dma_stm32_irq_2, DEVICE_GET(dma_stm32_2), 0);
irq_enable(STM32F4_IRQ_DMA2_STREAM2);
IRQ_CONNECT(STM32F4_IRQ_DMA2_STREAM3, DMA_STM32_IRQ_PRI,
dma_stm32_irq_3, DEVICE_GET(dma_stm32_2), 0);
irq_enable(STM32F4_IRQ_DMA2_STREAM3);
IRQ_CONNECT(STM32F4_IRQ_DMA2_STREAM4, DMA_STM32_IRQ_PRI,
dma_stm32_irq_4, DEVICE_GET(dma_stm32_2), 0);
irq_enable(STM32F4_IRQ_DMA2_STREAM4);
IRQ_CONNECT(STM32F4_IRQ_DMA2_STREAM5, DMA_STM32_IRQ_PRI,
dma_stm32_irq_5, DEVICE_GET(dma_stm32_2), 0);
irq_enable(STM32F4_IRQ_DMA2_STREAM5);
IRQ_CONNECT(STM32F4_IRQ_DMA2_STREAM6, DMA_STM32_IRQ_PRI,
dma_stm32_irq_6, DEVICE_GET(dma_stm32_2), 0);
irq_enable(STM32F4_IRQ_DMA2_STREAM6);
IRQ_CONNECT(STM32F4_IRQ_DMA2_STREAM7, DMA_STM32_IRQ_PRI,
dma_stm32_irq_7, DEVICE_GET(dma_stm32_2), 0);
irq_enable(STM32F4_IRQ_DMA2_STREAM7);
}
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