diff options
Diffstat (limited to 'ni845x_spi.c')
| -rw-r--r-- | ni845x_spi.c | 269 |
1 files changed, 131 insertions, 138 deletions
diff --git a/ni845x_spi.c b/ni845x_spi.c index 7b2bea3e..253025f0 100644 --- a/ni845x_spi.c +++ b/ni845x_spi.c @@ -40,8 +40,6 @@ enum voltage_coerce_mode { USE_HIGHER }; -static const struct spi_master spi_programmer_ni845x; - static unsigned char CS_number; // use chip select 0 as default static enum USB845x_type device_pid = Unknown_NI845X_Device; @@ -50,10 +48,6 @@ static NiHandle configuration_handle; static uint16_t io_voltage_in_mV; static bool ignore_io_voltage_limits; -static int ni845x_spi_shutdown(void *data); -static int32 ni845x_spi_open_resource(char *resource_handle, uInt32 *opened_handle); -static void ni845x_spi_print_available_devices(void); - // USB-8452 supported voltages, keep this array in ascending order! static const uint8_t usb8452_io_voltages_in_100mV[5] = { kNi845x12Volts, @@ -129,8 +123,30 @@ static void ni845x_report_warning(const char *const func, const int32 err) } /** + * @brief ni845x_spi_open_resource + * @param resource_handle the resource handle returned by the ni845xFindDevice or ni845xFindDeviceNext + * @param opened_handle the opened handle from the ni845xOpen + * @return the 0 on successful competition, negative error code on failure positive code on warning + */ +static int32 ni845x_spi_open_resource(char *resource_handle, uInt32 *opened_handle) +{ + // NI-845x driver loads the FPGA bitfile at the first time + // which can take couple seconds + if (device_pid == USB8452) + msg_pwarn("Opening NI-8452, this might take a while for the first time\n"); + + int32 tmp = ni845xOpen(resource_handle, opened_handle); + + if (tmp < 0) + ni845x_report_error("ni845xOpen", tmp); + else if (tmp > 0) + ni845x_report_warning("ni845xOpen", tmp); + return tmp; +} + +/** * @param serial a null terminated string containing the serial number of the specific device or NULL - * @return the 0 on successful completition, negative error code on failure + * @return the 0 on successful completion, negative error code on failure */ static int ni845x_spi_open(const char *serial, uInt32 *return_handle) { @@ -145,7 +161,7 @@ static int ni845x_spi_open(const char *serial, uInt32 *return_handle) tmp = ni845xFindDevice(resource_name, &device_find_handle, &found_devices_count); if (tmp != 0) { - // supress warning if no device found + // suppress warning if no device found if (tmp != NI845x_FIND_DEVICE_NO_DEVICE_FOUND) ni845x_report_error("ni845xFindDevice", tmp); return -1; @@ -194,33 +210,11 @@ _close_ret: } /** - * @brief ni845x_spi_open_resource - * @param resource_handle the resource handle returned by the ni845xFindDevice or ni845xFindDeviceNext - * @param opened_handle the opened handle from the ni845xOpen - * @return the 0 on successful competition, negative error code on failure positive code on warning - */ -static int32 ni845x_spi_open_resource(char *resource_handle, uInt32 *opened_handle) -{ - // NI-845x driver loads the FPGA bitfile at the first time - // which can take couple seconds - if (device_pid == USB8452) - msg_pwarn("Opening NI-8452, this might take a while for the first time\n"); - - int32 tmp = ni845xOpen(resource_handle, opened_handle); - - if (tmp < 0) - ni845x_report_error("ni845xOpen", tmp); - else if (tmp > 0) - ni845x_report_warning("ni845xOpen", tmp); - return tmp; -} - -/** * @brief usb8452_spi_set_io_voltage sets the IO voltage for the USB-8452 devices * @param requested_io_voltage_mV the desired IO voltage in mVolts * @param set_io_voltage_mV the IO voltage which was set in mVolts * @param coerce_mode if set to USE_LOWER the closest supported IO voltage which is lower or equal to - * the requested_io_voltage_mV will be selected. Otherwise the next closest supported voltage will be choosen + * the requested_io_voltage_mV will be selected. Otherwise the next closest supported voltage will be chosen * which is higher or equal to the requested_io_voltage_mV. * @return 0 on success, negative on error, positive on warning */ @@ -346,7 +340,7 @@ static void ni845x_spi_print_available_devices(void) tmp = ni845xFindDevice(resource_handle, &device_find_handle, &found_devices_count); if (tmp != 0) { - // supress warning if no device found + // suppress warning if no device found if (tmp != NI845x_FIND_DEVICE_NO_DEVICE_FOUND) ni845x_report_error("ni845xFindDevice", tmp); return; @@ -389,103 +383,6 @@ static void ni845x_spi_print_available_devices(void) ni845x_report_error("ni845xCloseFindDeviceHandle", tmp); } -int ni845x_spi_init(void) -{ - char *speed_str = NULL; - char *CS_str = NULL; - char *voltage = NULL; - char *endptr = NULL; - int requested_io_voltage_mV = 1200; // default the IO voltage to 1.2V - int spi_speed_KHz = 1000; // selecting 1 MHz SCK is a good bet - char *serial_number = NULL; // by default open the first connected device - char *ignore_io_voltage_limits_str = NULL; - int32 tmp = 0; - - // read the cs parameter (which Chip select should we use) - CS_str = extract_programmer_param("cs"); - if (CS_str) { - CS_number = CS_str[0] - '0'; - free(CS_str); - if (strlen(CS_str) > 1 || CS_number < 0 || 7 < CS_number) { - msg_perr("Only CS 0-7 supported\n"); - return 1; - } - } - - voltage = extract_programmer_param("voltage"); - if (voltage != NULL) { - requested_io_voltage_mV = parse_voltage(voltage); - free(voltage); - if (requested_io_voltage_mV < 0) - return 1; - } - - serial_number = extract_programmer_param("serial"); - - speed_str = extract_programmer_param("spispeed"); - if (speed_str) { - spi_speed_KHz = strtoul(speed_str, &endptr, 0); - if (*endptr) { - msg_perr("The spispeed parameter passed with invalid format: %s\n", - speed_str); - msg_perr("Please pass the parameter with a simple number in kHz\n"); - return 1; - } - free(speed_str); - } - - ignore_io_voltage_limits = false; - ignore_io_voltage_limits_str = extract_programmer_param("ignore_io_voltage_limits"); - if (ignore_io_voltage_limits_str - && strcmp(ignore_io_voltage_limits_str, "yes") == 0) { - ignore_io_voltage_limits = true; - } - - if (ni845x_spi_open(serial_number, &device_handle)) { - if (serial_number) { - msg_pinfo("Could not find any connected NI USB-8451/8452 with serialnumber: %s!\n", - serial_number); - ni845x_spi_print_available_devices(); - msg_pinfo("Check the S/N field on the bottom of the device,\n" - "or use 'lsusb -v -d 3923:7166 | grep Serial' for USB-8451\n" - "or 'lsusb -v -d 3923:7514 | grep Serial' for USB-8452\n"); - free(serial_number); - } else { - msg_pinfo("Could not find any connected NI USB-845x device!\n"); - } - return 1; - } - free(serial_number); - - // open the SPI config handle - tmp = ni845xSpiConfigurationOpen(&configuration_handle); - if (tmp != 0) { - ni845x_report_error("ni845xSpiConfigurationOpen", tmp); - ni845x_spi_shutdown(NULL); - return 1; - } - - if (usb8452_spi_set_io_voltage(requested_io_voltage_mV, &io_voltage_in_mV, USE_LOWER) < 0) { - ni845x_spi_shutdown(NULL); - return 1; // no alert here usb8452_spi_set_io_voltage already printed that - } - - if (ni845x_spi_set_speed(spi_speed_KHz)) { - msg_perr("Unable to set SPI speed\n"); - ni845x_spi_shutdown(NULL); - return 1; - } - - if (register_shutdown(ni845x_spi_shutdown, NULL)) { - ni845x_spi_shutdown(NULL); - return 1; - } - - register_spi_master(&spi_programmer_ni845x); - - return 0; -} - static int ni845x_spi_shutdown(void *data) { int32 ret = 0; @@ -583,7 +480,7 @@ static int ni845x_spi_io_voltage_check(const struct flashctx *flash) return 0; } -static int ni845x_spi_transmit(struct flashctx *flash, +static int ni845x_spi_transmit(const struct flashctx *flash, unsigned int write_cnt, unsigned int read_cnt, const unsigned char *write_arr, @@ -620,7 +517,7 @@ static int ni845x_spi_transmit(struct flashctx *flash, if (read_cnt != 0 && read_arr != NULL) { if ((read_cnt + write_cnt) != read_size) { - msg_perr("%s: expected and returned read count mismatch: %u expected, %ld recieved\n", + msg_perr("%s: expected and returned read count mismatch: %u expected, %ld received\n", __func__, read_cnt, read_size); free(transfer_buffer); return -1; @@ -632,11 +529,107 @@ static int ni845x_spi_transmit(struct flashctx *flash, } static const struct spi_master spi_programmer_ni845x = { - .max_data_read = MAX_DATA_READ_UNLIMITED, - .max_data_write = MAX_DATA_WRITE_UNLIMITED, - .command = ni845x_spi_transmit, - .multicommand = default_spi_send_multicommand, - .read = default_spi_read, - .write_256 = default_spi_write_256, - .write_aai = default_spi_write_aai, + .max_data_read = MAX_DATA_READ_UNLIMITED, + .max_data_write = MAX_DATA_WRITE_UNLIMITED, + .command = ni845x_spi_transmit, + .read = default_spi_read, + .write_256 = default_spi_write_256, + .shutdown = ni845x_spi_shutdown, +}; + +static int ni845x_spi_init(const struct programmer_cfg *cfg) +{ + char *speed_str = NULL; + char *CS_str = NULL; + char *voltage = NULL; + char *endptr = NULL; + int requested_io_voltage_mV = 1200; // default the IO voltage to 1.2V + int spi_speed_KHz = 1000; // selecting 1 MHz SCK is a good bet + char *serial_number = NULL; // by default open the first connected device + char *ignore_io_voltage_limits_str = NULL; + int32 tmp = 0; + + // read the cs parameter (which Chip select should we use) + CS_str = extract_programmer_param_str(cfg, "cs"); + if (CS_str) { + CS_number = CS_str[0] - '0'; + free(CS_str); + if (strlen(CS_str) > 1 || CS_number < 0 || 7 < CS_number) { + msg_perr("Only CS 0-7 supported\n"); + return 1; + } + } + + voltage = extract_programmer_param_str(cfg, "voltage"); + if (voltage != NULL) { + requested_io_voltage_mV = parse_voltage(voltage); + free(voltage); + if (requested_io_voltage_mV < 0) + return 1; + } + + serial_number = extract_programmer_param_str(cfg, "serial"); + + speed_str = extract_programmer_param_str(cfg, "spispeed"); + if (speed_str) { + spi_speed_KHz = strtoul(speed_str, &endptr, 0); + if (*endptr) { + msg_perr("The spispeed parameter passed with invalid format: %s\n", + speed_str); + msg_perr("Please pass the parameter with a simple number in kHz\n"); + return 1; + } + free(speed_str); + } + + ignore_io_voltage_limits = false; + ignore_io_voltage_limits_str = extract_programmer_param_str(cfg, "ignore_io_voltage_limits"); + if (ignore_io_voltage_limits_str + && strcmp(ignore_io_voltage_limits_str, "yes") == 0) { + ignore_io_voltage_limits = true; + } + + if (ni845x_spi_open(serial_number, &device_handle)) { + if (serial_number) { + msg_pinfo("Could not find any connected NI USB-8451/8452 with serialnumber: %s!\n", + serial_number); + ni845x_spi_print_available_devices(); + msg_pinfo("Check the S/N field on the bottom of the device,\n" + "or use 'lsusb -v -d 3923:7166 | grep Serial' for USB-8451\n" + "or 'lsusb -v -d 3923:7514 | grep Serial' for USB-8452\n"); + free(serial_number); + } else { + msg_pinfo("Could not find any connected NI USB-845x device!\n"); + } + return 1; + } + free(serial_number); + + // open the SPI config handle + tmp = ni845xSpiConfigurationOpen(&configuration_handle); + if (tmp != 0) { + ni845x_report_error("ni845xSpiConfigurationOpen", tmp); + ni845x_spi_shutdown(NULL); + return 1; + } + + if (usb8452_spi_set_io_voltage(requested_io_voltage_mV, &io_voltage_in_mV, USE_LOWER) < 0) { + ni845x_spi_shutdown(NULL); + return 1; // no alert here usb8452_spi_set_io_voltage already printed that + } + + if (ni845x_spi_set_speed(spi_speed_KHz)) { + msg_perr("Unable to set SPI speed\n"); + ni845x_spi_shutdown(NULL); + return 1; + } + + return register_spi_master(&spi_programmer_ni845x, NULL); +} + +const struct programmer_entry programmer_ni845x_spi = { + .name = "ni845x_spi", + .type = OTHER, // choose other because NI-845x uses own USB implementation + .devs.note = "National Instruments USB-845x\n", + .init = ni845x_spi_init, }; |