diff options
| -rw-r--r-- | host/apps/omap_debug/usrp-e-mm-loopback.c | 27 | ||||
| -rw-r--r-- | host/apps/omap_debug/usrp_e.h | 35 | ||||
| -rw-r--r-- | host/include/linux/usrp_e.h | 35 |
3 files changed, 51 insertions, 46 deletions
diff --git a/host/apps/omap_debug/usrp-e-mm-loopback.c b/host/apps/omap_debug/usrp-e-mm-loopback.c index 71519d535..a1da926a2 100644 --- a/host/apps/omap_debug/usrp-e-mm-loopback.c +++ b/host/apps/omap_debug/usrp-e-mm-loopback.c @@ -1,5 +1,6 @@ #include <stdio.h> #include <sys/types.h> +#include <sys/ioctl.h> #include <fcntl.h> #include <pthread.h> #include <stdlib.h> @@ -20,12 +21,6 @@ struct pkt { short data[1024-6]; }; -/* delete after usrp_e.h updated */ -struct ring_buffer_info { - int flags; - int len; -}; - struct ring_buffer_info (*rxi)[]; struct ring_buffer_info (*txi)[]; struct pkt (*rx_buf)[200]; @@ -182,6 +177,8 @@ int main(int argc, char *argv[]) struct sched_param s = { .sched_priority = 1 }; + struct usrp_e_ring_buffer_size_t rb_size; + int ret, map_size, page_size; void *rb; if (argc < 2) { @@ -194,7 +191,14 @@ int main(int argc, char *argv[]) fp = open("/dev/usrp_e0", O_RDWR); printf("fp = %d\n", fp); - rb = mmap(0, 102 * 4096, PROT_READ|PROT_WRITE, MAP_SHARED, fp, 0); + page_size = getpagesize(); + + ret = ioctl(fp, USRP_E_GET_RB_INFO, &rb_size); + + map_size = (rb_size.num_pages_rx_flags + rb_size.num_pages_tx_flags) * page_size + + (rb_size.num_rx_frames + rb_size.num_tx_frames) * (page_size >> 1); + + rb = mmap(0, map_size, PROT_READ|PROT_WRITE, MAP_SHARED, fp, 0); if (rb == MAP_FAILED) { perror("mmap failed"); return -1; @@ -203,9 +207,12 @@ int main(int argc, char *argv[]) printf("rb = %X\n", rb); rxi = rb; - rx_buf = rb + 4096; - txi = rb + 4096 + 4096 * 100; - tx_buf = rb + 4096 * 2 + 4096 * 100; + rx_buf = rb + (rb_size.num_pages_rx_flags * page_size); + txi = rb + (rb_size.num_pages_rx_flags * page_size) + + (rb_size.num_rx_frames * page_size >> 1); + tx_buf = rb + (rb_size.num_pages_rx_flags * page_size) + + (rb_size.num_rx_frames * page_size >> 1) + + (rb_size.num_pages_tx_flags * page_size); printf("rxi = %X, rx_buf = %X, txi = %X, tx_buf = %X\n", rxi, rx_buf, txi, tx_buf); diff --git a/host/apps/omap_debug/usrp_e.h b/host/apps/omap_debug/usrp_e.h index b098ad114..fd38027d4 100644 --- a/host/apps/omap_debug/usrp_e.h +++ b/host/apps/omap_debug/usrp_e.h @@ -34,8 +34,8 @@ struct usrp_e_ctl32 { #define UE_SPI_TXRX 1 /* Defines for spi ctrl register */ -#define UE_SPI_CTRL_TXNEG (1 << 10) -#define UE_SPI_CTRL_RXNEG (1 << 9) +#define UE_SPI_CTRL_TXNEG (BIT(10)) +#define UE_SPI_CTRL_RXNEG (BIT(9)) #define UE_SPI_PUSH_RISE 0 #define UE_SPI_PUSH_FALL UE_SPI_CTRL_TXNEG @@ -64,25 +64,24 @@ struct usrp_e_i2c { #define USRP_E_SPI _IOWR(USRP_E_IOC_MAGIC, 0x24, struct usrp_e_spi) #define USRP_E_I2C_READ _IOWR(USRP_E_IOC_MAGIC, 0x25, struct usrp_e_i2c) #define USRP_E_I2C_WRITE _IOW(USRP_E_IOC_MAGIC, 0x26, struct usrp_e_i2c) +#define USRP_E_GET_RB_INFO _IOR(USRP_E_IOC_MAGIC, 0x27, struct usrp_e_ring_buffer_size_t) -/* Data transfer frame definition */ - -struct usrp_transfer_frame { - __u32 status; - __u32 len; - __u8 buf[]; +/* Flag defines */ +#define RB_USER (1<<0) +#define RB_KERNEL (1<<1) +#define RB_OVERRUN (1<<2) +#define RB_DMA_ACTIVE (1<<3) + +struct ring_buffer_info { + int flags; + int len; }; -/* Flag defines */ -#define RB_USER (1 << 0) -#define RB_KERNEL (1 << 1) -#define RB_OVERRUN (1 << 2) -#define RB_DMA_ACTIVE (1 << 3) - -struct ring_buffer_entry { - unsigned int flags; - unsigned long dma_addr; - struct usrp_transfer_frame *frame_addr; +struct usrp_e_ring_buffer_size_t { + int num_pages_rx_flags; + int num_rx_frames; + int num_pages_tx_flags; + int num_tx_frames; }; #endif diff --git a/host/include/linux/usrp_e.h b/host/include/linux/usrp_e.h index b098ad114..fd38027d4 100644 --- a/host/include/linux/usrp_e.h +++ b/host/include/linux/usrp_e.h @@ -34,8 +34,8 @@ struct usrp_e_ctl32 { #define UE_SPI_TXRX 1 /* Defines for spi ctrl register */ -#define UE_SPI_CTRL_TXNEG (1 << 10) -#define UE_SPI_CTRL_RXNEG (1 << 9) +#define UE_SPI_CTRL_TXNEG (BIT(10)) +#define UE_SPI_CTRL_RXNEG (BIT(9)) #define UE_SPI_PUSH_RISE 0 #define UE_SPI_PUSH_FALL UE_SPI_CTRL_TXNEG @@ -64,25 +64,24 @@ struct usrp_e_i2c { #define USRP_E_SPI _IOWR(USRP_E_IOC_MAGIC, 0x24, struct usrp_e_spi) #define USRP_E_I2C_READ _IOWR(USRP_E_IOC_MAGIC, 0x25, struct usrp_e_i2c) #define USRP_E_I2C_WRITE _IOW(USRP_E_IOC_MAGIC, 0x26, struct usrp_e_i2c) +#define USRP_E_GET_RB_INFO _IOR(USRP_E_IOC_MAGIC, 0x27, struct usrp_e_ring_buffer_size_t) -/* Data transfer frame definition */ - -struct usrp_transfer_frame { - __u32 status; - __u32 len; - __u8 buf[]; +/* Flag defines */ +#define RB_USER (1<<0) +#define RB_KERNEL (1<<1) +#define RB_OVERRUN (1<<2) +#define RB_DMA_ACTIVE (1<<3) + +struct ring_buffer_info { + int flags; + int len; }; -/* Flag defines */ -#define RB_USER (1 << 0) -#define RB_KERNEL (1 << 1) -#define RB_OVERRUN (1 << 2) -#define RB_DMA_ACTIVE (1 << 3) - -struct ring_buffer_entry { - unsigned int flags; - unsigned long dma_addr; - struct usrp_transfer_frame *frame_addr; +struct usrp_e_ring_buffer_size_t { + int num_pages_rx_flags; + int num_rx_frames; + int num_pages_tx_flags; + int num_tx_frames; }; #endif |