Hello Dmitry, I hadn’t tried that, but the VME7807 has the same configuration registers so I should have. I am able to load that driver successfully, and I’ve checked to make sure the registers are the correct, but it doesn’t change the behavior of the board. I still don’t get any access to the VME bus. I also double checked that the switches on the VME 7807 are set properly, and they are all set to their default configuration, which is known to work with the GE drivers. -Jonathan > On Aug 1, 2015, at 4:32 PM, Dmitry Kalinkin <dmitry.kalinkin@xxxxxxxxx> wrote: > > It seems that GE does some extra FPGA trickery for VME. Could it be that you need vmivme7805 driver? > >> On 01 Aug 2015, at 01:28, Eisch, Jonathan D [PHYSA] <jeisch@xxxxxxxxxxx> wrote: >> >> Hello DriverDev, >> >> I recently installed the latest Debian with Kernel 3.16 including all the vme drivers (and vme_user in staging) on a GE VME7807RC. Using Martyn Welch’s example from 12 March 2013 on this list as a guide, I tried reading out 32 bytes from one of my boards, but I just got a bunch of 0xFF bytes. >> >> I monitored the bus with a diagnostics board, and didn’t see any activity at all (no addresses, no data) from power-up through booting and trying to read from the bus. Attempting the same reads with another VME7807 using the GE provided driver lit up the same diagnostics board like a christmas tree (well, the lower 16 bits). >> >> I hope I’m missing something basic, as I don’t see any error messages anywhere to guide my way. >> >> Thanks for your help, >> -Jonathan >> >> $ sudo modprobe vme_ca91cx42 >> $ sudo modprobe vme_user bus=0 >> $ dmesg | grep vme >> [ 632.942457] vme_ca91cx42 0000:01:0d.0: found PCI INT A -> IRQ 14 >> [ 632.942523] vme_ca91cx42 0000:01:0d.0: Board is the VME system controller >> [ 632.942526] vme_ca91cx42 0000:01:0d.0: Slot ID is 0 >> [ 632.942529] vme_ca91cx42 0000:01:0d.0: CR/CSR Offset: 0 >> [ 632.942533] vme_ca91cx42 0000:01:0d.0: Slot number is unset, not configuring CR/CSR space >> [ 632.942537] vme_ca91cx42 0000:01:0d.0: CR/CSR configuration failed. >> [ 640.990642] vme_user: module is from the staging directory, the quality is unknown, you have been warned. >> [ 640.991404] vme_user: VME User Space Access Driver >> $ sudo ./vmetest >> Simple VME User Module Test >> WARNING: Only read 32 bytes >> 0000: ff ff ff ff ff ff ff ff >> 0008: ff ff ff ff ff ff ff ff >> 0010: ff ff ff ff ff ff ff ff >> 0018: ff ff ff ff ff ff ff ff >> >> $ cat main.c >> /* >> * main.c >> * >> * Created on: Jul 29, 2015 >> * >> * Copied from: http://driverdev.linuxdriverproject.org/pipermail/driverdev-devel/2013-April/037460.html >> * >> */ >> >> #define _XOPEN_SOURCE 500 >> #include <stdio.h> >> #include <stdlib.h> >> #include <sys/ioctl.h> >> #include <sys/types.h> >> #include <sys/stat.h> >> #include <fcntl.h> >> #include <unistd.h> >> #include "vme_user.h" >> int main(int argc, char *argv[]) >> { >> int fd; >> int i; >> int retval; >> unsigned char data[512]; >> >> struct vme_master master; >> >> printf("Simple VME User Module Test\n"); >> >> fd = open("/dev/bus/vme/m0", O_RDONLY); >> if (fd == -1) { >> perror("ERROR: Opening window device file"); >> return 1; >> } >> // master.enable = 1; >> // master.vme_addr = 2*0x8000000; >> // master.size = 0x100000; >> // master.aspace = 0x4; // VME_A32 >> // master.cycle = 0x2000 | 0x8000; // Unprivileged data access >> // master.dwidth = 0x4; // 32 bit word access >> master.enable = 1; >> master.vme_addr = 0xE000; >> master.size = 0x1000; >> master.aspace = 0x1; // VME_A16 >> master.cycle = 0x2000; // Unprivileged data access >> master.dwidth = 0x2; // 16 bit word access >> >> retval = ioctl(fd, VME_SET_MASTER, &master); >> if (retval != 0) { >> printf("retval=%d\n", retval); >> perror("ERROR: Failed to configure window"); >> return 1; >> } >> >> /* >> * Reading first 32 bytes >> */ >> for (i=0; i<32; i++) { >> data[i] = 0; >> } >> >> retval = pread(fd, data, 32, 0); >> if (retval < 512) { >> printf("WARNING: Only read %d bytes", retval); >> } >> >> for(i=0; i<retval; i++) { >> if (i % 8 == 0) { >> printf("\n""%4.4x: ", i); >> } >> printf("%2.2x ", data[i]); >> } >> printf("\n"); >> >> close(fd); >> >> return 0; >> } >> >> >> ---- >> Jonathan Eisch >> Research Associate >> Physics & Astronomy >> Iowa State University >> _______________________________________________ >> devel mailing list >> devel@xxxxxxxxxxxxxxxxxxxxxx >> http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel > _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
