diff options
Diffstat (limited to 'src/systemcmds/mtd/mtd.c')
| -rw-r--r-- | src/systemcmds/mtd/mtd.c | 300 |
1 files changed, 257 insertions, 43 deletions
diff --git a/src/systemcmds/mtd/mtd.c b/src/systemcmds/mtd/mtd.c index baef9dccc..a2a0c109c 100644 --- a/src/systemcmds/mtd/mtd.c +++ b/src/systemcmds/mtd/mtd.c @@ -62,26 +62,43 @@ #include "systemlib/param/param.h" #include "systemlib/err.h" +#include <board_config.h> + __EXPORT int mtd_main(int argc, char *argv[]); -#ifndef CONFIG_MTD_RAMTRON +#ifndef CONFIG_MTD /* create a fake command with decent warnx to not confuse users */ int mtd_main(int argc, char *argv[]) { - errx(1, "RAMTRON not enabled, skipping."); + errx(1, "MTD not enabled, skipping."); } #else -static void mtd_attach(void); +#ifdef CONFIG_MTD_RAMTRON +static void ramtron_attach(void); +#else + +#ifndef PX4_I2C_BUS_ONBOARD +# error PX4_I2C_BUS_ONBOARD not defined, cannot locate onboard EEPROM +#endif + +static void at24xxx_attach(void); +#endif static void mtd_start(char *partition_names[], unsigned n_partitions); static void mtd_test(void); static void mtd_erase(char *partition_names[], unsigned n_partitions); +static void mtd_readtest(char *partition_names[], unsigned n_partitions); +static void mtd_rwtest(char *partition_names[], unsigned n_partitions); +static void mtd_print_info(); +static int mtd_get_geometry(unsigned long *blocksize, unsigned long *erasesize, unsigned long *neraseblocks, + unsigned *blkpererase, unsigned *nblocks, unsigned *partsize, unsigned n_partitions); static bool attached = false; static bool started = false; static struct mtd_dev_s *mtd_dev; +static unsigned n_partitions_current = 0; /* note, these will be equally sized */ static char *partition_names_default[] = {"/fs/mtd_params", "/fs/mtd_waypoints"}; @@ -93,9 +110,8 @@ int mtd_main(int argc, char *argv[]) if (!strcmp(argv[1], "start")) { /* start mapping according to user request */ - if (argc > 3) { + if (argc >= 3) { mtd_start(argv + 2, argc - 2); - } else { mtd_start(partition_names_default, n_partitions_default); } @@ -104,28 +120,49 @@ int mtd_main(int argc, char *argv[]) if (!strcmp(argv[1], "test")) mtd_test(); + if (!strcmp(argv[1], "readtest")) { + if (argc >= 3) { + mtd_readtest(argv + 2, argc - 2); + } else { + mtd_readtest(partition_names_default, n_partitions_default); + } + } + + if (!strcmp(argv[1], "rwtest")) { + if (argc >= 3) { + mtd_rwtest(argv + 2, argc - 2); + } else { + mtd_rwtest(partition_names_default, n_partitions_default); + } + } + + if (!strcmp(argv[1], "status")) + mtd_status(); + if (!strcmp(argv[1], "erase")) { - if (argc < 3) { - errx(1, "usage: mtd erase <PARTITION_PATH..>"); + if (argc >= 3) { + mtd_erase(argv + 2, argc - 2); + } else { + mtd_erase(partition_names_default, n_partitions_default); } - mtd_erase(argv + 2, argc - 2); } } - errx(1, "expected a command, try 'start', 'erase' or 'test'"); + errx(1, "expected a command, try 'start', 'erase', 'status', 'readtest', 'rwtest' or 'test'"); } struct mtd_dev_s *ramtron_initialize(FAR struct spi_dev_s *dev); struct mtd_dev_s *mtd_partition(FAR struct mtd_dev_s *mtd, off_t firstblock, off_t nblocks); +#ifdef CONFIG_MTD_RAMTRON static void -mtd_attach(void) +ramtron_attach(void) { /* find the right spi */ struct spi_dev_s *spi = up_spiinitialize(2); /* this resets the spi bus, set correct bus speed again */ - SPI_SETFREQUENCY(spi, 40 * 1000 * 1000); + SPI_SETFREQUENCY(spi, 10 * 1000 * 1000); SPI_SETBITS(spi, 8); SPI_SETMODE(spi, SPIDEV_MODE3); SPI_SELECT(spi, SPIDEV_FLASH, false); @@ -133,7 +170,7 @@ mtd_attach(void) if (spi == NULL) errx(1, "failed to locate spi bus"); - /* start the MTD driver, attempt 5 times */ + /* start the RAMTRON driver, attempt 5 times */ for (int i = 0; i < 5; i++) { mtd_dev = ramtron_initialize(spi); @@ -151,8 +188,44 @@ mtd_attach(void) if (mtd_dev == NULL) errx(1, "failed to initialize mtd driver"); + int ret = mtd_dev->ioctl(mtd_dev, MTDIOC_SETSPEED, (unsigned long)10*1000*1000); + if (ret != OK) + warnx(1, "failed to set bus speed"); + + attached = true; +} +#else + +static void +at24xxx_attach(void) +{ + /* find the right I2C */ + struct i2c_dev_s *i2c = up_i2cinitialize(PX4_I2C_BUS_ONBOARD); + /* this resets the I2C bus, set correct bus speed again */ + I2C_SETFREQUENCY(i2c, 400000); + + if (i2c == NULL) + errx(1, "failed to locate I2C bus"); + + /* start the MTD driver, attempt 5 times */ + for (int i = 0; i < 5; i++) { + mtd_dev = at24c_initialize(i2c); + if (mtd_dev) { + /* abort on first valid result */ + if (i > 0) { + warnx("warning: EEPROM needed %d attempts to attach", i+1); + } + break; + } + } + + /* if last attempt is still unsuccessful, abort */ + if (mtd_dev == NULL) + errx(1, "failed to initialize EEPROM driver"); + attached = true; } +#endif static void mtd_start(char *partition_names[], unsigned n_partitions) @@ -162,42 +235,25 @@ mtd_start(char *partition_names[], unsigned n_partitions) if (started) errx(1, "mtd already mounted"); - if (!attached) - mtd_attach(); + if (!attached) { + #ifdef CONFIG_ARCH_BOARD_PX4FMU_V1 + at24xxx_attach(); + #else + ramtron_attach(); + #endif + } if (!mtd_dev) { warnx("ERROR: Failed to create RAMTRON FRAM MTD instance"); exit(1); } + unsigned long blocksize, erasesize, neraseblocks; + unsigned blkpererase, nblocks, partsize; - /* Get the geometry of the FLASH device */ - - FAR struct mtd_geometry_s geo; - - ret = mtd_dev->ioctl(mtd_dev, MTDIOC_GEOMETRY, (unsigned long)((uintptr_t)&geo)); - - if (ret < 0) { - warnx("ERROR: mtd->ioctl failed: %d", ret); + ret = mtd_get_geometry(&blocksize, &erasesize, &neraseblocks, &blkpererase, &nblocks, &partsize, n_partitions); + if (ret) exit(3); - } - - warnx("Flash Geometry:"); - warnx(" blocksize: %lu", (unsigned long)geo.blocksize); - warnx(" erasesize: %lu", (unsigned long)geo.erasesize); - warnx(" neraseblocks: %lu", (unsigned long)geo.neraseblocks); - - /* Determine the size of each partition. Make each partition an even - * multiple of the erase block size (perhaps not using some space at the - * end of the FLASH). - */ - - unsigned blkpererase = geo.erasesize / geo.blocksize; - unsigned nblocks = (geo.neraseblocks / n_partitions) * blkpererase; - unsigned partsize = nblocks * geo.blocksize; - - warnx(" No. partitions: %u", n_partitions); - warnx(" Partition size: %lu Blocks (%lu bytes)", (unsigned long)nblocks, (unsigned long)partsize); /* Now create MTD FLASH partitions */ @@ -244,18 +300,98 @@ mtd_start(char *partition_names[], unsigned n_partitions) } } + n_partitions_current = n_partitions; + started = true; exit(0); } -static void +int mtd_get_geometry(unsigned long *blocksize, unsigned long *erasesize, unsigned long *neraseblocks, + unsigned *blkpererase, unsigned *nblocks, unsigned *partsize, unsigned n_partitions) +{ + /* Get the geometry of the FLASH device */ + + FAR struct mtd_geometry_s geo; + + int ret = mtd_dev->ioctl(mtd_dev, MTDIOC_GEOMETRY, (unsigned long)((uintptr_t)&geo)); + + if (ret < 0) { + warnx("ERROR: mtd->ioctl failed: %d", ret); + return ret; + } + + *blocksize = geo.blocksize; + *erasesize = geo.blocksize; + *neraseblocks = geo.neraseblocks; + + /* Determine the size of each partition. Make each partition an even + * multiple of the erase block size (perhaps not using some space at the + * end of the FLASH). + */ + + *blkpererase = geo.erasesize / geo.blocksize; + *nblocks = (geo.neraseblocks / n_partitions) * *blkpererase; + *partsize = *nblocks * geo.blocksize; + + return ret; +} + +/* + get partition size in bytes + */ +static ssize_t mtd_get_partition_size(void) +{ + unsigned long blocksize, erasesize, neraseblocks; + unsigned blkpererase, nblocks, partsize = 0; + + int ret = mtd_get_geometry(&blocksize, &erasesize, &neraseblocks, &blkpererase, &nblocks, &partsize, n_partitions_current); + if (ret != OK) { + errx(1, "Failed to get geometry"); + } + return partsize; +} + +void mtd_print_info() +{ + if (!attached) + exit(1); + + unsigned long blocksize, erasesize, neraseblocks; + unsigned blkpererase, nblocks, partsize; + + int ret = mtd_get_geometry(&blocksize, &erasesize, &neraseblocks, &blkpererase, &nblocks, &partsize, n_partitions_current); + if (ret) + exit(3); + + warnx("Flash Geometry:"); + + printf(" blocksize: %lu\n", blocksize); + printf(" erasesize: %lu\n", erasesize); + printf(" neraseblocks: %lu\n", neraseblocks); + printf(" No. partitions: %u\n", n_partitions_current); + printf(" Partition size: %u Blocks (%u bytes)\n", nblocks, partsize); + printf(" TOTAL SIZE: %u KiB\n", neraseblocks * erasesize / 1024); + +} + +void mtd_test(void) { warnx("This test routine does not test anything yet!"); exit(1); } -static void +void +mtd_status(void) +{ + if (!attached) + errx(1, "MTD driver not started"); + + mtd_print_info(); + exit(0); +} + +void mtd_erase(char *partition_names[], unsigned n_partitions) { uint8_t v[64]; @@ -267,7 +403,7 @@ mtd_erase(char *partition_names[], unsigned n_partitions) if (fd == -1) { errx(1, "Failed to open partition"); } - while (write(fd, &v, sizeof(v)) == sizeof(v)) { + while (write(fd, v, sizeof(v)) == sizeof(v)) { count += sizeof(v); } printf("Erased %lu bytes\n", (unsigned long)count); @@ -276,4 +412,82 @@ mtd_erase(char *partition_names[], unsigned n_partitions) exit(0); } +/* + readtest is useful during startup to validate the device is + responding on the bus. It relies on the driver returning an error on + bad reads (the ramtron driver does return an error) + */ +void +mtd_readtest(char *partition_names[], unsigned n_partitions) +{ + ssize_t expected_size = mtd_get_partition_size(); + + uint8_t v[128]; + for (uint8_t i = 0; i < n_partitions; i++) { + uint32_t count = 0; + printf("reading %s expecting %u bytes\n", partition_names[i], expected_size); + int fd = open(partition_names[i], O_RDONLY); + if (fd == -1) { + errx(1, "Failed to open partition"); + } + while (read(fd, v, sizeof(v)) == sizeof(v)) { + count += sizeof(v); + } + if (count != expected_size) { + errx(1,"Failed to read partition - got %u/%u bytes", count, expected_size); + } + close(fd); + } + printf("readtest OK\n"); + exit(0); +} + +/* + rwtest is useful during startup to validate the device is + responding on the bus for both reads and writes. It reads data in + blocks and writes the data back, then reads it again, failing if the + data isn't the same + */ +void +mtd_rwtest(char *partition_names[], unsigned n_partitions) +{ + ssize_t expected_size = mtd_get_partition_size(); + + uint8_t v[128], v2[128]; + for (uint8_t i = 0; i < n_partitions; i++) { + uint32_t count = 0; + off_t offset = 0; + printf("rwtest %s testing %u bytes\n", partition_names[i], expected_size); + int fd = open(partition_names[i], O_RDWR); + if (fd == -1) { + errx(1, "Failed to open partition"); + } + while (read(fd, v, sizeof(v)) == sizeof(v)) { + count += sizeof(v); + if (lseek(fd, offset, SEEK_SET) != offset) { + errx(1, "seek failed"); + } + if (write(fd, v, sizeof(v)) != sizeof(v)) { + errx(1, "write failed"); + } + if (lseek(fd, offset, SEEK_SET) != offset) { + errx(1, "seek failed"); + } + if (read(fd, v2, sizeof(v2)) != sizeof(v2)) { + errx(1, "read failed"); + } + if (memcmp(v, v2, sizeof(v2)) != 0) { + errx(1, "memcmp failed"); + } + offset += sizeof(v); + } + if (count != expected_size) { + errx(1,"Failed to read partition - got %u/%u bytes", count, expected_size); + } + close(fd); + } + printf("rwtest OK\n"); + exit(0); +} + #endif |