diff options
Diffstat (limited to 'src/systemcmds/mtd/mtd.c')
| -rw-r--r-- | src/systemcmds/mtd/mtd.c | 169 |
1 files changed, 134 insertions, 35 deletions
diff --git a/src/systemcmds/mtd/mtd.c b/src/systemcmds/mtd/mtd.c index baef9dccc..41da63750 100644 --- a/src/systemcmds/mtd/mtd.c +++ b/src/systemcmds/mtd/mtd.c @@ -62,26 +62,41 @@ #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_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"}; @@ -104,6 +119,9 @@ int mtd_main(int argc, char *argv[]) if (!strcmp(argv[1], "test")) mtd_test(); + if (!strcmp(argv[1], "status")) + mtd_status(); + if (!strcmp(argv[1], "erase")) { if (argc < 3) { errx(1, "usage: mtd erase <PARTITION_PATH..>"); @@ -119,8 +137,9 @@ 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); @@ -133,7 +152,7 @@ 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); @@ -153,6 +172,38 @@ mtd_attach(void) 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 +213,25 @@ 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 +278,83 @@ 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; +} + +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]; |