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| author | Aleksander Morgado <aleksander@aleksander.es> | 2018-09-12 15:45:45 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-09-17 09:50:41 +0200 |
| commit | de6d3aeec9a590c4eb53a953c8758f183ffeba1e (patch) | |
| tree | 89c4df0d7bcfdcd157d80a5b759037b7db052ef8 /scripts/remote/main.py | |
| parent | 2d2daa3c65a08c201cbbbad772a93b1855709eb3 (diff) | |
| download | barebox-de6d3aeec9a590c4eb53a953c8758f183ffeba1e.tar.gz barebox-de6d3aeec9a590c4eb53a953c8758f183ffeba1e.tar.xz | |
bbremote: implement i2c read/write support
Extend the bbremote script with operations to perform binary i2c
read/write operations.
E.g.:
barebox:/ i2c_read -b 0 -a 0x68 -r 0x06A0 -c 4 -w
0x8f 0x30 0x00 0x00
barebox:/ i2c_write -b 0 -a 0x68 -r 0x06A0 -w 0x87 0x30 0x00 0x00
barebox:/ i2c_read -b 0 -a 0x68 -r 0x06A0 -c 4 -w
0x87 0x30 0x00 0x00
barebox:/ i2c_write -b 0 -a 0x68 -r 0x06A0 -w 0x8f 0x30 0x00 0x00
barebox:/ i2c_read -b 0 -a 0x68 -r 0x06A0 -c 4 -w
0x8f 0x30 0x00 0x00
===================================================================
$ ./scripts/bbremote --port /dev/ttyUSB2 i2c-read 0x00 0x68 0x06A0 0x01 4
8f300000
$ ./scripts/bbremote --port /dev/ttyUSB2 i2c-write 0x00 0x68 0x06A0 0x01 "87300000"
4 bytes written
$ ./scripts/bbremote --port /dev/ttyUSB2 i2c-read 0x00 0x68 0x06A0 0x01 4
87300000
$ ./scripts/bbremote --port /dev/ttyUSB2 i2c-write 0x00 0x68 0x06A0 0x01 "8f300000"
4 bytes written
$ ./scripts/bbremote --port /dev/ttyUSB2 i2c-read 0x00 0x68 0x06A0 0x01 4
8f300000
Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'scripts/remote/main.py')
| -rw-r--r-- | scripts/remote/main.py | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/scripts/remote/main.py b/scripts/remote/main.py index 38d280bfee..0f77839272 100644 --- a/scripts/remote/main.py +++ b/scripts/remote/main.py @@ -98,6 +98,27 @@ def handle_mw(args): return res +def handle_i2c_read(args): + ctrl = get_controller(args) + (res,data) = ctrl.i2c_read(args.bus, args.address, args.reg, args.flags, args.size) + if res == 0: + print(binascii.hexlify(data)) + ctrl.close() + return res + + +def handle_i2c_write(args): + ctrl = get_controller(args) + data=args.data + if ((len(data) % 2) != 0): + data="0"+data + (res,written) = ctrl.i2c_write(args.bus, args.address, args.reg, args.flags, binascii.unhexlify(data)) + if res == 0: + print("%i bytes written" % written) + ctrl.close() + return res + + def handle_reset(args): ctrl = get_controller(args) ctrl.reset(args.force) @@ -188,6 +209,22 @@ parser_mw.add_argument('address', type=auto_int, help="address") parser_mw.add_argument('data', help="data") parser_mw.set_defaults(func=handle_mw) +parser_i2c_read = subparsers.add_parser('i2c-read', help="run i2c read command") +parser_i2c_read.add_argument('bus', type=auto_int, help="bus") +parser_i2c_read.add_argument('address', type=auto_int, help="address") +parser_i2c_read.add_argument('reg', type=auto_int, help="reg") +parser_i2c_read.add_argument('flags', type=auto_int, help="flags") +parser_i2c_read.add_argument('size', type=auto_int, help="size") +parser_i2c_read.set_defaults(func=handle_i2c_read) + +parser_i2c_write = subparsers.add_parser('i2c-write', help="run i2c write command") +parser_i2c_write.add_argument('bus', type=auto_int, help="bus") +parser_i2c_write.add_argument('address', type=auto_int, help="address") +parser_i2c_write.add_argument('reg', type=auto_int, help="reg") +parser_i2c_write.add_argument('flags', type=auto_int, help="flags") +parser_i2c_write.add_argument('data', help="data") +parser_i2c_write.set_defaults(func=handle_i2c_write) + parser_reset = subparsers.add_parser('reset', help="run reset command") parser_reset_force = parser_reset.add_mutually_exclusive_group(required=False) parser_reset_force.add_argument('--force', dest='force', action='store_true') |