diff options
author | Jack Humbert <jack.humb@gmail.com> | 2018-06-12 10:59:35 -0400 |
---|---|---|
committer | Jack Humbert <jack.humb@gmail.com> | 2018-06-12 10:59:35 -0400 |
commit | 998ddbb122c9d3e2a77bd4e88c881b225ca0d569 (patch) | |
tree | ca91ff7ad3c4866555d1e623fe9ea05276397e1c /keyboards/sx60/sx60.c | |
parent | c0095710a7c7e9bd94aa9f4dd814dc28d718c731 (diff) | |
parent | 06487daaddf923d635e8a528d1eb644b875a73f6 (diff) | |
download | qmk_firmware-998ddbb122c9d3e2a77bd4e88c881b225ca0d569.tar.gz qmk_firmware-998ddbb122c9d3e2a77bd4e88c881b225ca0d569.zip |
Merge branch 'master' of github.com:qmk/qmk_firmware into hf/shinydox
Diffstat (limited to 'keyboards/sx60/sx60.c')
-rwxr-xr-x | keyboards/sx60/sx60.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/keyboards/sx60/sx60.c b/keyboards/sx60/sx60.c new file mode 100755 index 0000000000..ede8c07e97 --- /dev/null +++ b/keyboards/sx60/sx60.c @@ -0,0 +1,38 @@ +#include "sx60.h" +#include "i2cmaster.h" + + +bool i2c_initialized = 0; +uint8_t mcp23018_status = 0x20; + +uint8_t init_mcp23018(void) { + mcp23018_status = 0x20; + + /* I2C subsystem */ + + if (i2c_initialized == 0) { + i2c_init(); // on pins D(1,0) + i2c_initialized = true; + _delay_ms(1000); + } + + /* B Pins are Row, A pins are Columns + Set them to output */ + mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(IODIRA); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(0b11111111); if (mcp23018_status) goto out; + /* Now write to IODIRB */ + mcp23018_status = i2c_write(0b00000000); if (mcp23018_status) goto out; + i2c_stop(); + + mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(GPPUA); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(0b11111111); if (mcp23018_status) goto out; + /* Now write to GPPUB */ + mcp23018_status = i2c_write(0b00000000); if (mcp23018_status) goto out; + +out: + i2c_stop(); + + return mcp23018_status; +} |