summaryrefslogtreecommitdiff
path: root/bsp/raspberry-pi
diff options
context:
space:
mode:
authorbigmagic <[email protected]>2020-03-13 21:16:42 +0800
committerbigmagic <[email protected]>2020-03-18 14:22:15 +0800
commitf6a13de08f48521bc56e80c33df6f50d69b5795d (patch)
tree1d10e6a7413fb77044bf34eb8270462535db452e /bsp/raspberry-pi
parentba482c3346c04fbec46b15122cd8b19a6a3f2f11 (diff)
add raspi3-64 spi driver
Diffstat (limited to 'bsp/raspberry-pi')
-rw-r--r--bsp/raspberry-pi/raspi3-64/.config12
-rw-r--r--bsp/raspberry-pi/raspi3-64/driver/Kconfig15
-rw-r--r--bsp/raspberry-pi/raspi3-64/driver/drv_spi.c491
-rw-r--r--bsp/raspberry-pi/raspi3-64/driver/drv_spi.h128
-rw-r--r--bsp/raspberry-pi/raspi3-64/rtconfig.h4
5 files changed, 268 insertions, 382 deletions
diff --git a/bsp/raspberry-pi/raspi3-64/.config b/bsp/raspberry-pi/raspi3-64/.config
index c34aca6c96..87e28aaed5 100644
--- a/bsp/raspberry-pi/raspi3-64/.config
+++ b/bsp/raspberry-pi/raspi3-64/.config
@@ -166,7 +166,12 @@ CONFIG_RT_MMCSD_STACK_SIZE=4096
CONFIG_RT_MMCSD_THREAD_PREORITY=22
CONFIG_RT_MMCSD_MAX_PARTITION=16
CONFIG_RT_SDIO_DEBUG=y
-# CONFIG_RT_USING_SPI is not set
+CONFIG_RT_USING_SPI=y
+# CONFIG_RT_USING_QSPI is not set
+# CONFIG_RT_USING_SPI_MSD is not set
+# CONFIG_RT_USING_SFUD is not set
+# CONFIG_RT_USING_ENC28J60 is not set
+# CONFIG_RT_USING_SPI_WIFI is not set
CONFIG_RT_USING_WDT=y
# CONFIG_RT_USING_AUDIO is not set
# CONFIG_RT_USING_SENSOR is not set
@@ -444,7 +449,10 @@ CONFIG_RT_USING_SYSTIMER3=y
CONFIG_BSP_USING_I2C=y
# CONFIG_BSP_USING_I2C0 is not set
CONFIG_BSP_USING_I2C1=y
-# CONFIG_BSP_USING_SPI is not set
+CONFIG_BSP_USING_SPI=y
+CONFIG_BSP_USING_SPI0_BUS=y
+CONFIG_BSP_USING_SPI0_DEVICE0=y
+# CONFIG_BSP_USING_SPI0_DEVICE1 is not set
CONFIG_BSP_USING_WDT=y
# CONFIG_BSP_USING_RTC is not set
CONFIG_BSP_USING_SDIO=y
diff --git a/bsp/raspberry-pi/raspi3-64/driver/Kconfig b/bsp/raspberry-pi/raspi3-64/driver/Kconfig
index 74746bc797..37f7501cc0 100644
--- a/bsp/raspberry-pi/raspi3-64/driver/Kconfig
+++ b/bsp/raspberry-pi/raspi3-64/driver/Kconfig
@@ -63,12 +63,17 @@ menu "Hardware Drivers Config"
select RT_USING_SPI
default n
- if BSP_USING_SPI
- config BSP_USING_SPI0
- bool "Enable SPI0"
+ if BSP_USING_SPI
+ config BSP_USING_SPI0_BUS
+ bool "Enable SPI0 BUS"
default n
- config BSP_USING_SPI1
- bool "Enable SPI1"
+ config BSP_USING_SPI0_DEVICE0
+ bool "Enable SPI0 DEVICE0"
+ select BSP_USING_SPI0_BUS
+ default n
+ config BSP_USING_SPI0_DEVICE1
+ bool "Enable SPI0 DEVICE1"
+ select BSP_USING_SPI0_BUS
default n
endif
diff --git a/bsp/raspberry-pi/raspi3-64/driver/drv_spi.c b/bsp/raspberry-pi/raspi3-64/driver/drv_spi.c
index 70d2096277..0b0c8881a8 100644
--- a/bsp/raspberry-pi/raspi3-64/driver/drv_spi.c
+++ b/bsp/raspberry-pi/raspi3-64/driver/drv_spi.c
@@ -7,446 +7,281 @@
* Date Author Notes
* 2019-07-29 zdzn first version
*/
-
#include "drv_spi.h"
-
-#if !defined(BSP_USING_SPI0) && !defined(BSP_USING_SPI1)
-#ifdef RT_USING_SPI
-#undef RT_USING_SPI
-#endif
-#endif
+#include "raspi.h"
#ifdef RT_USING_SPI
-struct rpi_pin_index
-{
- rt_uint8_t phy_id;
- rt_uint8_t bcm_id;
- rt_uint8_t signal_name;
- rt_uint8_t magic;
-};
-
-//raspi phy id and bcm id
-static struct rpi_pin_index phypin_index[] =
-{
- {0, 0, 0, 0},
- {1, 0, 0, 0},
- {2, 0, 0, 0},
- {3, BCM_GPIO_PIN_2, RPI_SDA1, PIN_MAGIC},
- {4, 0, 0, 0},
- {5, BCM_GPIO_PIN_3, RPI_SCL1, PIN_MAGIC},
- {6, 0, 0, 0},
- {7, BCM_GPIO_PIN_4, RPI_GPIO_GCLK, PIN_MAGIC},
- {8, BCM_GPIO_PIN_14, RPI_TXD0, PIN_MAGIC},
- {9, 0, 0, 0},
- {10, BCM_GPIO_PIN_15, RPI_RXD0, PIN_MAGIC},
- {11, BCM_GPIO_PIN_17, RPI_GPIO_GEN0, PIN_MAGIC},
- {12, BCM_GPIO_PIN_18, RPI_GPIO_GEN1, PIN_MAGIC},
- {13, BCM_GPIO_PIN_27, RPI_GPIO_GEN2, PIN_MAGIC},
- {14, 0, 0, 0},
- {15, BCM_GPIO_PIN_22, RPI_GPIO_GEN3, PIN_MAGIC},
- {16, BCM_GPIO_PIN_23, RPI_GPIO_GEN4, PIN_MAGIC},
- {17, 0, 0, 0},
- {18, BCM_GPIO_PIN_24, RPI_GPIO_GEN5, PIN_MAGIC},
- {19, BCM_GPIO_PIN_10, RPI_SPI_MOSI, PIN_MAGIC},
- {20, 0, 0, 0},
- {21, BCM_GPIO_PIN_9, RPI_SPI_MISO, PIN_MAGIC},
- {22, BCM_GPIO_PIN_25, RPI_GPIO_GEN6, PIN_MAGIC},
- {23, BCM_GPIO_PIN_11, RPI_SPI_SCLK, PIN_MAGIC},
- {24, BCM_GPIO_PIN_8, RPI_SPI_CE0_N, PIN_MAGIC},
- {25, 0, 0, 0},
- {26, BCM_GPIO_PIN_7, RPI_SPI_CE1_N, PIN_MAGIC},
- {27, BCM_GPIO_PIN_0, RPI_SDA0, PIN_MAGIC},
- {28, BCM_GPIO_PIN_1, RPI_SCL0, PIN_MAGIC},
- {29, BCM_GPIO_PIN_5, RPI_CAM_CLK, PIN_MAGIC},
- {30, 0, 0, 0},
- {31, BCM_GPIO_PIN_6, RPI_LAN_RUN, PIN_MAGIC},
- {32, BCM_GPIO_PIN_12, 0, PIN_MAGIC},
- {33, BCM_GPIO_PIN_13, 0, PIN_MAGIC},
- {34, 0, 0, 0},
- {35, BCM_GPIO_PIN_19, 0, PIN_MAGIC},
- {36, BCM_GPIO_PIN_16, RPI_STATUS_LED_N, PIN_MAGIC},
- {37, BCM_GPIO_PIN_26, 0, PIN_MAGIC},
- {38, BCM_GPIO_PIN_20, 0, PIN_MAGIC},
- {39, 0, 0, 0},
- {40, BCM_GPIO_PIN_21, RPI_CAM_GPIO, PIN_MAGIC},
-};
-
-
-static rt_uint8_t bcm2835_spi_bit_order = BCM283X_SPI_BIT_ORDER_MSBFIRST;
-static rt_uint8_t bcm2835_byte_reverse_table[] =
-{
- 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
- 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
- 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
- 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
- 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
- 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
- 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
- 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
- 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
- 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
- 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
- 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
- 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
- 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
- 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
- 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
- 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
- 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
- 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
- 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
- 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
- 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
- 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
- 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
- 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
- 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
- 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
- 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
- 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
- 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
- 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
- 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
-};
-
+#define RPI_CORE_CLK_HZ 250000000
#define BSP_SPI_MAX_HZ (30* 1000 *1000)
#define SPITIMEOUT 0x0FFF
-struct rt_spi_hw_config
+void spi_gpio_write(rt_uint8_t pin, rt_uint8_t val)
{
- rt_int8_t sclk_pin;
- rt_int8_t sclk_mode;
- rt_int8_t mosi_pin;
- rt_int8_t mosi_mode;
- rt_int8_t miso_pin;
- rt_int8_t miso_mode;
- rt_int8_t cs_pin;
- rt_int8_t cs_mode;
- rt_uint32_t spi_base;
- rt_uint32_t clk_div;
-};
+ if (val)
+ BCM283X_GPIO_GPSET((pin / 32)) = 1 << (pin % 32);
+ else
+ BCM283X_GPIO_GPCLR((pin / 32)) = 1 << (pin % 32);
+}
-struct rt_sw_spi_cs
+struct raspi_spi_hw_config
{
- rt_uint32_t pin;
+ rt_uint8_t spi_num;
+ raspi_gpio_pin sclk_pin;
+ raspi_pin_select sclk_mode;
+ raspi_gpio_pin mosi_pin;
+ raspi_pin_select mosi_mode;
+ raspi_gpio_pin miso_pin;
+ raspi_pin_select miso_mode;
+#if defined (BSP_USING_SPI0_DEVICE0) || defined (BSP_USING_SPI1_DEVICE0)
+ raspi_gpio_pin ce0_pin;
+ raspi_pin_select ce0_mode;
+#endif
+
+#if defined (BSP_USING_SPI0_DEVICE1) || defined (BSP_USING_SPI1_DEVICE1)
+ raspi_gpio_pin ce1_pin;
+ raspi_pin_select ce1_mode;
+#endif
+
+#if defined (BSP_USING_SPI1_DEVICE2)
+ raspi_gpio_pin ce2_pin;
+ raspi_pin_select ce2_mode;
+#endif
};
-struct rt_spi
+struct raspi_spi_device
{
char *device_name;
struct rt_spi_bus *spi_bus;
- struct rt_spi_hw_config *hwcfg;
- struct rt_spi_configuration *cfg;
+ struct rt_spi_device *spi_device;
+ raspi_gpio_pin cs_pin;
};
-static rt_err_t raspi_hostspi_init(struct rt_spi_configuration *cfg)
+static rt_err_t raspi_spi_configure(struct rt_spi_device *device, struct rt_spi_configuration *cfg)
{
-
- volatile rt_uint32_t addr = (PER_BASE + BCM283X_SPI0_BASE) + BCM283X_SPI0_CS;
- //volatile rt_uint32_t fifo = (PER_BASE + BCM283X_SPI0_BASE) + BCM283X_SPI0_FIFO;
+ RT_ASSERT(cfg != RT_NULL);
+ RT_ASSERT(device != RT_NULL);
+ rt_uint16_t divider;
// spi clear fifo
- bcm283x_peri_set_bits(addr, BCM283X_SPI0_CS_CLEAR, BCM283X_SPI0_CS_CLEAR);
-
- // /* Set TA = 1 */
- // bcm2835_peri_set_bits(addr, BCM283X_SPI0_CS_TA, BCM283X_SPI0_CS_TA);
-
- /* Mask in the CPO and CPHA bits of CS */
+ BCM283X_SPI0_CS(BCM283X_SPI0_BASE) |= BCM283X_SPI0_CS_CLEAR;
- bcm283x_peri_set_bits(addr, (rt_uint32_t)(cfg->mode << 2), BCM283X_SPI0_CS_CPOL | BCM283X_SPI0_CS_CPHA);
+ if (cfg->mode & RT_SPI_CPOL)
+ BCM283X_SPI0_CS(BCM283X_SPI0_BASE) |= BCM283X_SPI0_CS_CPOL;
- //chipSelect
- bcm283x_peri_set_bits(addr, BCM283X_SPI_CS0, BCM283X_SPI0_CS_CS);
+ if (cfg->mode & RT_SPI_CPHA)
+ BCM283X_SPI0_CS(BCM283X_SPI0_BASE) |= BCM283X_SPI0_CS_CPHA;
- rt_uint8_t shift = 21 + BCM283X_SPI_CS0;
- /* Mask in the appropriate CSPOLn bit */
- bcm283x_peri_set_bits(addr, LOW << shift, 1 << shift);
+ if (cfg->mode & RT_SPI_CS_HIGH)
+ BCM283X_SPI0_CS(BCM283X_SPI0_BASE) |= BCM283X_SPI0_CS_CSPOL;
-
- if(cfg->max_hz > BSP_SPI_MAX_HZ)
- {
+ //set clk
+ if (cfg->max_hz > BSP_SPI_MAX_HZ)
cfg->max_hz = BSP_SPI_MAX_HZ;
- }
- volatile rt_uint32_t clk_addr = (PER_BASE + BCM283X_SPI0_BASE) + BCM283X_SPI0_CLK;
- bcm283x_peri_write(clk_addr, cfg->max_hz);
+ divider = (rt_uint16_t) ((rt_uint32_t) RPI_CORE_CLK_HZ / cfg->max_hz);
+ divider &= 0xFFFE;
- return RT_EOK;
-}
-
-static rt_err_t raspi_spi_configure(struct rt_spi_device *device, struct rt_spi_configuration *cfg)
-{
- RT_ASSERT(cfg != RT_NULL);
- RT_ASSERT(device != RT_NULL);
-
- struct rt_spi *hspi = (struct rt_spi *)&device->bus->parent;
- hspi->cfg = cfg;
-
- raspi_hostspi_init(cfg);
+ BCM283X_SPI0_CLK(BCM283X_SPI0_BASE) = divider;
return RT_EOK;
}
-
-rt_uint8_t correct_order(rt_uint8_t b)
+rt_uint8_t correct_order(rt_uint8_t b, rt_uint8_t flag)
{
- if (bcm2835_spi_bit_order == BCM283X_SPI_BIT_ORDER_LSBFIRST)
- return bcm2835_byte_reverse_table[b];
+ if (flag)
+ return raspi_byte_reverse_table[b];
else
return b;
}
-static rt_err_t spi_transfernb(rt_uint8_t* tbuf, rt_uint8_t* rbuf, rt_uint32_t len)
+static rt_err_t spi_transfernb(rt_uint8_t* tbuf, rt_uint8_t* rbuf, rt_uint32_t len, rt_uint8_t flag)
{
- volatile rt_uint32_t paddr = SPI0_BASE_ADDR + BCM283X_SPI0_CS;
- volatile rt_uint32_t fifo = SPI0_BASE_ADDR + BCM283X_SPI0_FIFO;
rt_uint32_t TXCnt=0;
rt_uint32_t RXCnt=0;
/* Clear TX and RX fifos */
- bcm283x_peri_set_bits(paddr, BCM283X_SPI0_CS_CLEAR, BCM283X_SPI0_CS_CLEAR);
+ BCM283X_SPI0_CS(BCM283X_SPI0_BASE) |= (BCM283X_SPI0_CS_CLEAR & BCM283X_SPI0_CS_CLEAR);
/* Set TA = 1 */
- bcm283x_peri_set_bits(paddr, BCM283X_SPI0_CS_TA, BCM283X_SPI0_CS_TA);
+ BCM283X_SPI0_CS(BCM283X_SPI0_BASE) |= (BCM283X_SPI0_CS_TA & BCM283X_SPI0_CS_TA);
+
/* Use the FIFO's to reduce the interbyte times */
while ((TXCnt < len) || (RXCnt < len))
{
/* TX fifo not full, so add some more bytes */
- while (((bcm283x_peri_read(paddr) & BCM283X_SPI0_CS_TXD)) && (TXCnt < len))
+ while (((BCM283X_SPI0_CS(BCM283X_SPI0_BASE) & BCM283X_SPI0_CS_TXD)) && (TXCnt < len))
{
- bcm283x_peri_write_nb(fifo, correct_order(tbuf[TXCnt]));
+ BCM283X_SPI0_FIFO(BCM283X_SPI0_BASE) = correct_order(tbuf[TXCnt],flag);
TXCnt++;
}
/* Rx fifo not empty, so get the next received bytes */
- while (((bcm283x_peri_read(paddr) & BCM283X_SPI0_CS_RXD)) && (RXCnt < len))
+ while (((BCM283X_SPI0_CS(BCM283X_SPI0_BASE) & BCM283X_SPI0_CS_RXD)) && (RXCnt < len))
{
- rbuf[RXCnt] = correct_order(bcm283x_peri_read_nb(fifo));
+ rbuf[RXCnt] = correct_order(BCM283X_SPI0_FIFO(BCM283X_SPI0_BASE),flag);
RXCnt++;
}
}
/* Wait for DONE to be set */
- while (!(bcm283x_peri_read_nb(paddr) & BCM283X_SPI0_CS_DONE));
+ while (!(BCM283X_SPI0_CS(BCM283X_SPI0_BASE) & BCM283X_SPI0_CS_DONE));
/* Set TA = 0, and also set the barrier */
- bcm283x_peri_set_bits(paddr, 0, BCM283X_SPI0_CS_TA);
+ BCM283X_SPI0_CS(BCM283X_SPI0_BASE) |= (0 & BCM283X_SPI0_CS_TA);
return RT_EOK;
-
}
static rt_uint32_t raspi_spi_xfer(struct rt_spi_device *device, struct rt_spi_message *message)
{
- rt_err_t res;
+
RT_ASSERT(device != RT_NULL);
RT_ASSERT(device->bus != RT_NULL);
- RT_ASSERT(device->bus->parent.user_data != RT_NULL);
+ RT_ASSERT(device->parent.user_data != RT_NULL);
RT_ASSERT(message->send_buf != RT_NULL || message->recv_buf != RT_NULL);
- struct rt_spi *hspi = (struct rt_spi *)&device->bus->parent;
- /* only send data */
- if (message->recv_buf == RT_NULL)
- {
- if (message->cs_take)
- {
- bcm283x_gpio_write(hspi->hwcfg->cs_pin, 0);
- }
- res = spi_transfernb((rt_uint8_t *)message->send_buf, RT_NULL,(rt_int32_t)message->length);
- if (message->cs_release)
- {
- bcm283x_gpio_write(hspi->hwcfg->cs_pin, 1);
-
- }
- if (res != RT_EOK)
- return RT_ERROR;
- }
+ rt_err_t res;
+ rt_uint8_t flag;
+ struct rt_spi_configuration config = device->config;
+ raspi_gpio_pin cs_pin = (raspi_gpio_pin)device->parent.user_data;
- /* only receive data */
- if (message->send_buf == RT_NULL)
- {
- if (message->cs_take)
- {
- bcm283x_gpio_write(hspi->hwcfg->cs_pin, 0);
- }
- res = spi_transfernb(RT_NULL,(rt_uint8_t *)message->recv_buf, (rt_int32_t)message->length);
- if (message->cs_release)
- {
- bcm283x_gpio_write(hspi->hwcfg->cs_pin, 1);
- }
- if (res != RT_EOK)
- return RT_ERROR;
- }
- /* send & receive */
+ if (config.mode & RT_SPI_MSB)
+ flag = 0;
else
- {
- if (message->cs_take)
- {
- bcm283x_gpio_write(hspi->hwcfg->cs_pin, 0);
- }
- res = spi_transfernb((rt_uint8_t *)message->send_buf, (rt_uint8_t *)message->recv_buf,
- (rt_int32_t)message->length);
- if (message->cs_release)
- {
- bcm283x_gpio_write(hspi->hwcfg->cs_pin, 1);
- }
- if (res != RT_EOK)
- return RT_ERROR;
- }
+ flag = 1;
+ if (message->cs_take);
+ // (config.mode & RT_SPI_CS_HIGH)?
+ // spi_gpio_write(cs_pin, 1):
+ // spi_gpio_write(cs_pin, 0);
+
+ /* deal data */
+ res = spi_transfernb((rt_uint8_t *)message->send_buf, (rt_uint8_t *)message->recv_buf,
+ (rt_int32_t)message->length, flag);
+
+ if (message->cs_release)
+ (config.mode & RT_SPI_CS_HIGH)?
+ spi_gpio_write(cs_pin, 0):
+ spi_gpio_write(cs_pin, 1);
+
+ if (res != RT_EOK)
+ return RT_ERROR;
return message->length;
}
-rt_err_t raspi_spi_bus_attach_device(const char *bus_name, const char *device_name, rt_uint32_t pin)
+rt_err_t raspi_spi_bus_attach_device(const char *bus_name, struct raspi_spi_device *device)
{
rt_err_t ret;
- rt_int16_t gpio_pin;
- struct rt_spi_device *spi_device;
- struct rt_sw_spi_cs *cs_pin;
-
- gpio_pin = phypin_index[pin].bcm_id;
-
- spi_device = (struct rt_spi_device *)rt_malloc(sizeof(struct rt_spi_device));
- RT_ASSERT(spi_device != RT_NULL);
-
- cs_pin = (struct rt_sw_spi_cs *)rt_malloc(sizeof(struct rt_sw_spi_cs));
- RT_ASSERT(cs_pin != RT_NULL);
-
- cs_pin->pin = gpio_pin;
-
- ret = rt_spi_bus_attach_device(spi_device, device_name, bus_name, (void *)cs_pin);
-
+ RT_ASSERT(device != RT_NULL);
+ ret = rt_spi_bus_attach_device(device->spi_device, device->device_name, bus_name, (void *)(device->cs_pin));
return ret;
}
-#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
-rt_uint16_t spi_clockdivider(rt_uint32_t speed_hz)
+rt_err_t raspi_spi_hw_init(struct raspi_spi_hw_config *hwcfg)
{
- rt_uint16_t divider;
+ GPIO_FSEL(hwcfg->sclk_pin, hwcfg->sclk_mode);
+ GPIO_FSEL(hwcfg->miso_pin, hwcfg->miso_mode);
+ GPIO_FSEL(hwcfg->mosi_pin, hwcfg->mosi_mode);
- if (speed_hz < (rt_uint32_t) BCM283X_AUX_SPI_CLOCK_MIN)
- {
- speed_hz = (rt_uint32_t) BCM283X_AUX_SPI_CLOCK_MIN;
- }
- else if (speed_hz > (rt_uint32_t) BCM283X_AUX_SPI_CLOCK_MAX)
- {
- speed_hz = (rt_uint32_t) BCM283X_AUX_SPI_CLOCK_MAX;
- }
-
- divider = (rt_uint16_t) DIV_ROUND_UP(BCM283X_CORE_CLK_HZ, 2 * speed_hz) - 1;
-
- if (divider > (rt_uint16_t) BCM283X_AUX_SPI_CNTL0_SPEED_MAX)
- {
- return (rt_uint16_t) BCM283X_AUX_SPI_CNTL0_SPEED_MAX;
- }
-
- return divider;
-}
+#if defined (BSP_USING_SPI0_DEVICE0)
+ GPIO_FSEL(hwcfg->ce0_pin, hwcfg->ce0_mode);
+#endif
-rt_err_t raspi_spi_hw_init(struct rt_spi_hw_config *hwcfg)
-{
- volatile rt_uint32_t enable = PER_BASE + BCM283X_AUX_BASE + BCM283X_AUX_ENABLE;
- volatile rt_uint32_t cntl0 = PER_BASE + BCM283X_SPI1_BASE + BCM283X_AUX_SPI_CNTL0;
- volatile rt_uint32_t cntl1 = PER_BASE + BCM283X_SPI1_BASE + BCM283X_AUX_SPI_CNTL1;
+#if defined (BSP_USING_SPI0_DEVICE1)
+ GPIO_FSEL(hwcfg->ce1_pin, hwcfg->ce1_mode);
+#endif
- bcm283x_gpio_fsel(hwcfg->sclk_pin, hwcfg->sclk_mode);
- bcm283x_gpio_fsel(hwcfg->miso_pin, hwcfg->miso_mode);
- bcm283x_gpio_fsel(hwcfg->mosi_pin, hwcfg->mosi_mode);
- bcm283x_gpio_fsel(hwcfg->cs_pin, hwcfg->cs_mode);
+ BCM283X_SPI0_CS(BCM283X_SPI0_BASE) = 0;
+ BCM283X_SPI0_CS(BCM283X_SPI0_BASE) = BCM283X_SPI0_CS_CLEAR;
- hwcfg->clk_div = spi_clockdivider(1000000); // Default 1MHz SPI
+ //enable chip select
+#if defined (BSP_USING_SPI0_DEVICE0)
+ BCM283X_SPI0_CS(BCM283X_SPI0_BASE) |= 0;
+#endif
- bcm283x_peri_write(enable, BCM283X_AUX_ENABLE_SPI0);
- bcm283x_peri_write(cntl1, 0);
- bcm283x_peri_write(cntl0, BCM283X_AUX_SPI_CNTL0_CLEARFIFO);
+#if defined (BSP_USING_SPI0_DEVICE1)
+ BCM283X_SPI0_CS(BCM283X_SPI0_BASE) |= 0x2;
+#endif
+#if defined (BSP_USING_SPI0_DEVICE0) && defined (BSP_USING_SPI0_DEVICE1)
+ BCM283X_SPI0_CS(BCM283X_SPI0_BASE) |= BCM283X_SPI0_CS_CS;
+#endif
return RT_EOK;
}
-const static struct rt_spi_ops raspi_spi_ops =
+static struct rt_spi_ops raspi_spi_ops =
{
.configure = raspi_spi_configure,
.xfer = raspi_spi_xfer
};
-#if defined (BSP_USING_SPI0)
-#define SPI0BUS_NAME "spi0.0"
-
-struct rt_spi spi0;
-struct rt_spi_bus raspi_spi0_bus =
-{
- .ops = &raspi_spi_ops,
- .parent.user_data = &spi0
-};
+#if defined (BSP_USING_SPI0_BUS)
+#define SPI0_BUS_NAME "spi0"
+#define SPI0_DEVICE0_NAME "spi0.0"
+#define SPI0_DEVICE1_NAME "spi0.1"
-struct rt_spi_hw_config raspi_spi0_hw =
-{
- .sclk_pin = BCM_GPIO_PIN_11,
- .sclk_mode = BCM283X_GPIO_FSEL_ALT0,
- .mosi_pin = BCM_GPIO_PIN_10,
- .mosi_mode = BCM283X_GPIO_FSEL_ALT0,
- .miso_pin = BCM_GPIO_PIN_9,
- .miso_mode = BCM283X_GPIO_FSEL_ALT0,
- .cs_pin = BCM_GPIO_PIN_8,
- .cs_mode = BCM283X_GPIO_FSEL_ALT0,
- .spi_base = (PER_BASE + BCM283X_SPI0_BASE),
- .clk_div = 0,
-};
-
-struct rt_spi spi0 =
-{
- .device_name = SPI0BUS_NAME,
- .spi_bus = &raspi_spi0_bus,
- .hwcfg = &raspi_spi0_hw,
-};
+struct rt_spi_bus spi0_bus;
+#if defined (BSP_USING_SPI0_DEVICE0)
+struct rt_spi_device spi0_device0;
#endif
-#if defined (BSP_USING_SPI1)
-#define SPI1BUS_NAME "spi0.1"
-
-struct rt_spi spi1;
-struct rt_spi_bus raspi_spi1_bus =
-{
- .ops = &raspi_spi_ops,
- .parent.user_data = &spi1
-};
+#if defined (BSP_USING_SPI0_DEVICE1)
+static struct rt_spi_device spi0_device1;
+#endif
-struct rt_spi_hw_config raspi_spi1_hw =
+struct raspi_spi_hw_config raspi_spi0_hw =
{
- .sclk_pin = BCM_GPIO_PIN_11,
+ .spi_num = 0,
+ .sclk_pin = RPI_GPIO_P1_23,
.sclk_mode = BCM283X_GPIO_FSEL_ALT0,
- .mosi_pin = BCM_GPIO_PIN_10,
+ .mosi_pin = RPI_GPIO_P1_19,
.mosi_mode = BCM283X_GPIO_FSEL_ALT0,
- .miso_pin = BCM_GPIO_PIN_9,
+ .miso_pin = RPI_GPIO_P1_21,
.miso_mode = BCM283X_GPIO_FSEL_ALT0,
- .cs_pin = BCM_GPIO_PIN_7,
- .cs_mode = BCM283X_GPIO_FSEL_ALT0,
- .spi_base = (PER_BASE + BCM283X_SPI0_BASE),
- .clk_div = 0,
-};
-struct rt_spi spi1 =
-{
- .device_name = SPI1BUS_NAME,
- .spi_bus = &raspi_spi1_bus,
- .hwcfg = &raspi_spi1_hw,
+#if defined (BSP_USING_SPI0_DEVICE0)
+ .ce0_pin = RPI_GPIO_P1_24,
+ .ce0_mode = BCM283X_GPIO_FSEL_ALT0,
+#endif
+
+#if defined (BSP_USING_SPI0_DEVICE1)
+ .ce1_pin = RPI_GPIO_P1_26,
+ .ce1_mode = BCM283X_GPIO_FSEL_ALT0,
+#endif
};
#endif
-int rt_hw_spi_bus_init(void)
+int rt_hw_spi_init(void)
{
-#if defined (BSP_USING_SPI0)
- raspi_spi_hw_init(spi0.hwcfg);
- rt_spi_bus_register(spi0.spi_bus, spi0.device_name, spi0.spi_bus->ops);
-#endif
-#if defined (BSP_USING_SPI1)
- raspi_spi_hw_init(spi1.hwcfg);
- rt_spi_bus_register(spi1.spi_bus, spi1.device_name, spi1.spi_bus->ops);
+#if defined (BSP_USING_SPI0_BUS)
+ raspi_spi_hw_init(&raspi_spi0_hw);
+ rt_spi_bus_register(&spi0_bus, SPI0_BUS_NAME, &raspi_spi_ops);
+
+#if defined (BSP_USING_SPI0_DEVICE0)
+ struct raspi_spi_device raspi_spi0_device0 =
+ {
+ .device_name = SPI0_DEVICE0_NAME,
+ .spi_bus = &spi0_bus,
+ .spi_device = &spi0_device0,
+ .cs_pin = raspi_spi0_hw.ce0_pin,
+ };
+ raspi_spi_bus_attach_device(SPI0_BUS_NAME, &raspi_spi0_device0);
#endif
+#if defined (BSP_USING_SPI0_DEVICE1)
+ struct raspi_spi_device raspi_spi0_device1 =
+ {
+ .device_name = SPI0_DEVICE1_NAME,
+ .spi_bus = &spi0_bus,
+ .spi_device = &spi0_device1,
+ .cs_pin = raspi_spi0_hw.ce1_pin,
+ };
+ raspi_spi_bus_attach_device(SPI0_BUS_NAME, &raspi_spi0_device1);
+#endif
+#endif
return RT_EOK;
}
-INIT_PREV_EXPORT(rt_hw_spi_bus_init);
+INIT_DEVICE_EXPORT(rt_hw_spi_init);
#endif
diff --git a/bsp/raspberry-pi/raspi3-64/driver/drv_spi.h b/bsp/raspberry-pi/raspi3-64/driver/drv_spi.h
index c4883758e5..9e4623b327 100644
--- a/bsp/raspberry-pi/raspi3-64/driver/drv_spi.h
+++ b/bsp/raspberry-pi/raspi3-64/driver/drv_spi.h
@@ -12,57 +12,91 @@
#define __DRV_SPI_H__
#include <rtthread.h>
-#include <rthw.h>
-
-#include "bcm283x.h"
#include <rtdevice.h>
-#include <drivers/spi.h>
-#include "raspi.h"
+
+//#include <drivers/spi.h>
+#include "board.h"
#define SPI0_BASE_ADDR (PER_BASE + BCM283X_SPI0_BASE)
-#define SPI_CORE_CLK 250000000U
-#define SPI_CS 0x00
-#define SPI_CS_LEN_LONG (1 << 25)
-#define SPI_CS_DMA_LEN (1 << 24)
-#define SPI_CS_CSPOL2 (1 << 23)
-#define SPI_CS_CSPOL1 (1 << 22)
-#define SPI_CS_CSPOL0 (1 << 21)
-#define SPI_CS_RXF (1 << 20)
-#define SPI_CS_RXR (1 << 19)
-#define SPI_CS_TXD (1 << 18)
-#define SPI_CS_RXD (1 << 17)
-#define SPI_CS_DONE (1 << 16)
-#define SPI_CS_LEN (1 << 13)
-#define SPI_CS_REN (1 << 12)
-#define SPI_CS_ADCS (1 << 11)
-#define SPI_CS_INTR (1 << 10)
-#define SPI_CS_INTD (1 << 9)
-#define SPI_CS_DMAEN (1 << 8)
-#define SPI_CS_TA (1 << 7)
-#define SPI_CS_CSPOL (1 << 6)
-#define SPI_CS_CLEAR_RXFIFO (1 << 5)
-#define SPI_CS_CLEAR_TXFIFO (1 << 4)
-#define SPI_CS_CPOL (1 << 3)
-#define SPI_CS_CPHA (1 << 2)
-#define SPI_CS_MASK 0x3
-#define SPI_FIFO 0x04
-#define SPI_CLK 0x08
-#define SPI_CLK_MASK 0xffff
-#define SPI_DLEN 0x0c
-#define SPI_DLEN_MASK 0xffff
-#define SPI_LTOH 0x10
-#define SPI_LTOH_MASK 0xf
-#define SPI_DC 0x14
-#define SPI_DC_RPANIC_SHIFT 24
-#define SPI_DC_RPANIC_MASK (0xff << SPI_DC_RPANIC_SHIFT)
-#define SPI_DC_RDREQ_SHIFT 16
-#define SPI_DC_RDREQ_MASK (0xff << SPI_DC_RDREQ_SHIFT)
-#define SPI_DC_TPANIC_SHIFT 8
-#define SPI_DC_TPANIC_MASK (0xff << SPI_DC_TPANIC_SHIFT)
-#define SPI_DC_TDREQ_SHIFT 0
-#define SPI_DC_TDREQ_MASK 0xff
+static rt_uint8_t raspi_byte_reverse_table[] =
+{
+ 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
+ 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
+ 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
+ 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
+ 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
+ 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
+ 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
+ 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
+ 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
+ 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
+ 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
+ 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
+ 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
+ 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
+ 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
+ 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
+ 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
+ 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
+ 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
+ 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
+ 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
+ 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
+ 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
+ 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
+ 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
+ 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
+ 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
+ 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
+ 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
+ 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
+ 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
+ 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
+};
+
+#define SPI_CORE_CLK 250000000U
+#define SPI_CS 0x00
+#define SPI_CS_LEN_LONG (1 << 25)
+#define SPI_CS_DMA_LEN (1 << 24)
+#define SPI_CS_CSPOL2 (1 << 23)
+#define SPI_CS_CSPOL1 (1 << 22)
+#define SPI_CS_CSPOL0 (1 << 21)
+#define SPI_CS_RXF (1 << 20)
+#define SPI_CS_RXR (1 << 19)
+#define SPI_CS_TXD (1 << 18)
+#define SPI_CS_RXD (1 << 17)
+#define SPI_CS_DONE (1 << 16)
+#define SPI_CS_LEN (1 << 13)
+#define SPI_CS_REN (1 << 12)
+#define SPI_CS_ADCS (1 << 11)
+#define SPI_CS_INTR (1 << 10)
+#define SPI_CS_INTD (1 << 9)
+#define SPI_CS_DMAEN (1 << 8)
+#define SPI_CS_TA (1 << 7)
+#define SPI_CS_CSPOL (1 << 6)
+#define SPI_CS_CLEAR_RXFIFO (1 << 5)
+#define SPI_CS_CLEAR_TXFIFO (1 << 4)
+#define SPI_CS_CPOL (1 << 3)
+#define SPI_CS_CPHA (1 << 2)
+#define SPI_CS_MASK 0x3
+#define SPI_FIFO 0x04
+#define SPI_CLK 0x08
+#define SPI_CLK_MASK 0xffff
+#define SPI_DLEN 0x0c
+#define SPI_DLEN_MASK 0xffff
+#define SPI_LTOH 0x10
+#define SPI_LTOH_MASK 0xf
+#define SPI_DC 0x14
+#define SPI_DC_RPANIC_SHIFT 24
+#define SPI_DC_RPANIC_MASK (0xff << SPI_DC_RPANIC_SHIFT)
+#define SPI_DC_RDREQ_SHIFT 16
+#define SPI_DC_RDREQ_MASK (0xff << SPI_DC_RDREQ_SHIFT)
+#define SPI_DC_TPANIC_SHIFT 8
+#define SPI_DC_TPANIC_MASK (0xff << SPI_DC_TPANIC_SHIFT)
+#define SPI_DC_TDREQ_SHIFT 0
+#define SPI_DC_TDREQ_MASK 0xff
-int rt_hw_spi_bus_init(void);
+int rt_hw_spi_init(void);
#endif
diff --git a/bsp/raspberry-pi/raspi3-64/rtconfig.h b/bsp/raspberry-pi/raspi3-64/rtconfig.h
index 19e18a299d..11a6a233fc 100644
--- a/bsp/raspberry-pi/raspi3-64/rtconfig.h
+++ b/bsp/raspberry-pi/raspi3-64/rtconfig.h
@@ -113,6 +113,7 @@
#define RT_MMCSD_THREAD_PREORITY 22
#define RT_MMCSD_MAX_PARTITION 16
#define RT_SDIO_DEBUG
+#define RT_USING_SPI
#define RT_USING_WDT
/* Using USB */
@@ -197,6 +198,9 @@
#define RT_USING_SYSTIMER3
#define BSP_USING_I2C
#define BSP_USING_I2C1
+#define BSP_USING_SPI
+#define BSP_USING_SPI0_BUS
+#define BSP_USING_SPI0_DEVICE0
#define BSP_USING_WDT
#define BSP_USING_SDIO
#define BSP_USING_SDIO0