OmniNX/hekate
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

bdk: bm92t: add version check

Browse Source
This commit is contained in:
CTCaer
2025-06-22 13:00:01 +03:00
parent f365dd40f4
commit 835dba384b
2 changed files with 26 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
bdk/power/bm92t36.c
View File

@@ -1,7 +1,7 @@
/*
* USB-PD driver for Nintendo Switch's TI BM92T36
*
* Copyright (c) 2020-2023 CTCaer
* Copyright (c) 2020-2025 CTCaer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -54,6 +54,10 @@
#define STATUS1_INSERT BIT(7) // Cable inserted.
#define VER_36 0x36
#define MAX_ROHM 0x4B5
#define DEV_BM92T 0x3B0
typedef struct _pd_object_t {
unsigned int amp:10;
unsigned int volt:10;
@@ -63,9 +67,29 @@ typedef struct _pd_object_t {
static int _bm92t36_read_reg(u8 *buf, u32 size, u32 reg)
{
memset(buf, 0, size);
return i2c_recv_buf_big(buf, size, I2C_1, BM92T36_I2C_ADDR, reg);
}
int bm92t36_get_version(u32 *value)
{
u8 buf[2];
u16 version, man, dev;
_bm92t36_read_reg(buf, 2, FW_TYPE_REG);
version = (buf[0] << 4) | buf[1];
_bm92t36_read_reg(buf, 2, MAN_ID_REG);
man = (buf[1] << 8) | buf[0];
_bm92t36_read_reg(buf, 2, DEV_ID_REG);
dev = (buf[1] << 8) | buf[0];
if (value)
*value = (dev << 16) | version;
if (version == VER_36 && man == MAX_ROHM && dev == DEV_BM92T)
return 0;
else
return -1;
}
void bm92t36_get_sink_info(bool *inserted, usb_pd_objects_t *usb_pd)
{
u8 buf[32];
@@ -73,14 +97,12 @@ void bm92t36_get_sink_info(bool *inserted, usb_pd_objects_t *usb_pd)
if (inserted)
{
memset(buf, 0, sizeof(buf));
_bm92t36_read_reg(buf, 2, STATUS1_REG);
*inserted = (buf[0] & STATUS1_INSERT) ? true : false;
}
if (usb_pd)
{
memset(buf, 0, sizeof(buf));
_bm92t36_read_reg(buf, 29, READ_PDOS_SRC_REG);
memcpy(pdos, &buf[1], 28);

1
bdk/power/bm92t36.h
View File

@@ -36,6 +36,7 @@ typedef struct _usb_pd_objects_t
usb_pd_object_t selected_pdo;
} usb_pd_objects_t;
int bm92t36_get_version(u32 *value);
void bm92t36_get_sink_info(bool *inserted, usb_pd_objects_t *usb_pd);
#endif