nold/hekate
1
0
Fork 0
mirror of https://github.com/CTCaer/hekate synced 2024-12-22 11:21:23 +00:00
Code Issues Projects Releases Packages Wiki Activity

i2c: Update driver in hekate main also

Browse source
This commit is contained in:
CTCaer 2020-04-30 03:54:24 +03:00
parent 11f1f65ed1
commit 279b67fa49
1 changed files with 30 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

37
bootloader/soc/i2c.c
View file

@ -38,21 +38,39 @@ static void _i2c_wait(vu32 *base)
static int _i2c_send_pkt(u32 idx, u32 x, u8 *buf, u32 size) static int _i2c_send_pkt(u32 idx, u32 x, u8 *buf, u32 size)
{ {
if (size > 4) if (size > 8)
return 0; return 0;
u32 tmp = 0; u32 tmp = 0;
memcpy(&tmp, buf, size);
vu32 *base = (vu32 *)i2c_addrs[idx]; vu32 *base = (vu32 *)i2c_addrs[idx];
base[I2C_CMD_ADDR0] = x << 1; //Set x (send mode). base[I2C_CMD_ADDR0] = x << 1; //Set x (send mode).
base[I2C_CMD_DATA1] = tmp; //Set value.
if (size > 4)
{
memcpy(&tmp, buf, 4);
base[I2C_CMD_DATA1] = tmp; //Set value.
tmp = 0;
memcpy(&tmp, buf + 4, size - 4);
base[I2C_CMD_DATA2] = tmp;
}
else
{
memcpy(&tmp, buf, size);
base[I2C_CMD_DATA1] = tmp; //Set value.
}
base[I2C_CNFG] = ((size - 1) << 1) | 0x2800; //Set size and send mode. base[I2C_CNFG] = ((size - 1) << 1) | 0x2800; //Set size and send mode.
_i2c_wait(base); //Kick transaction. _i2c_wait(base); //Kick transaction.
base[I2C_CNFG] = (base[I2C_CNFG] & 0xFFFFFDFF) | 0x200; base[I2C_CNFG] = (base[I2C_CNFG] & 0xFFFFFDFF) | 0x200;
u32 timeout = get_tmr_ms() + 1500;
while (base[I2C_STATUS] & 0x100) while (base[I2C_STATUS] & 0x100)
; {
if (get_tmr_ms() > timeout)
return 0;
}
if (base[I2C_STATUS] << 28) if (base[I2C_STATUS] << 28)
return 0; return 0;
@ -71,8 +89,13 @@ static int _i2c_recv_pkt(u32 idx, u8 *buf, u32 size, u32 x)
_i2c_wait(base); // Kick transaction. _i2c_wait(base); // Kick transaction.
base[I2C_CNFG] = (base[I2C_CNFG] & 0xFFFFFDFF) | 0x200; base[I2C_CNFG] = (base[I2C_CNFG] & 0xFFFFFDFF) | 0x200;
u32 timeout = get_tmr_ms() + 1500;
while (base[I2C_STATUS] & 0x100) while (base[I2C_STATUS] & 0x100)
; {
if (get_tmr_ms() > timeout)
return 0;
}
if (base[I2C_STATUS] << 28) if (base[I2C_STATUS] << 28)
return 0; return 0;
@ -113,7 +136,7 @@ int i2c_send_buf_small(u32 idx, u32 x, u32 y, u8 *buf, u32 size)
{ {
u8 tmp[4]; u8 tmp[4];
if (size > 3) if (size > 7)
return 0; return 0;
tmp[0] = y; tmp[0] = y;