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bdk: joycon: add 3 mbaud support and full init

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Additionally use states for proper init
This commit is contained in:
CTCaer 2022-05-09 05:48:10 +03:00
parent 12aac3a0fc
commit 2aed1b3b83
1 changed files with 109 additions and 6 deletions
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109
bdk/input/joycon.c
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@ -44,6 +44,9 @@
#define JC_WIRED_CMD_GET_INFO 0x01
#define JC_WIRED_CMD_INIT_DONE 0x10
#define JC_WIRED_CMD_BRATE_DONE 0x11
#define JC_WIRED_CMD_SET_RATE 0x12 // Output report rate.
#define JC_WIRED_CMD_SET_BRATE 0x20
#define JC_HID_OUTPUT_RPT 0x01
#define JC_HID_RUMBLE_RPT 0x10
@ -70,6 +73,15 @@
#define JC_CRC8_POLY 0x8D
enum
{
JC_STATE_START = 0,
JC_STATE_HANDSHAKED = 1,
JC_STATE_BRATE_CHANGED = 2,
JC_STATE_BRATE_OK = 3,
JC_STATE_INIT_DONE = 4
};
enum
{
JC_BATT_EMTPY = 0,
@ -95,6 +107,32 @@ static const u8 init_get_info[] = {
0x00, 0x00, 0x00, 0x00, 0x24 // Wired subcmd data and crc.
};
static const u8 init_switch_brate[] = {
0x19, 0x01, 0x03, 0x0F, 0x00, // Uart header.
JC_WIRED_CMD, JC_WIRED_CMD_SET_BRATE, // Wired cmd and subcmd.
0x08, 0x00, 0x00, 0xBD, 0xB1, // Wired subcmd data, data crc and crc.
// Baudrate 3 megabaud.
0xC0, 0xC6, 0x2D, 0x00, 0x00, 0x00, 0x00, 0x00
};
static const u8 init_switched_brate[] = {
0x19, 0x01, 0x03, 0x07, 0x00, // Uart header.
JC_WIRED_CMD, JC_WIRED_CMD_BRATE_DONE, // Wired cmd and subcmd.
0x00, 0x00, 0x00, 0x00, 0x0E // Wired subcmd data and crc.
};
static const u8 init_set_rpt_rate[] = {
0x19, 0x01, 0x03, 0x0B, 0x00, // Uart header.
JC_WIRED_CMD, JC_WIRED_CMD_SET_RATE, // Wired cmd and subcmd.
0x04, 0x00, 0x00, 0x12, 0xA6, // Wired subcmd data, data crc and crc.
// Output report rate 15 ms.
0x0F, 0x00, 0x00, 0x00
// 5 ms.
// 0x04, 0x00, 0x00, 0x0E, 0xD5,
// 0x05, 0x00, 0x00, 0x00
};
static const u8 init_finalize[] = {
0x19, 0x01, 0x03, 0x07, 0x00, // Uart header.
JC_WIRED_CMD, JC_WIRED_CMD_INIT_DONE, // Wired cmd and subcmd.
@ -189,6 +227,7 @@ typedef struct _joycon_ctxt_t
u8 buf[0x100]; //FIXME: If heap is used, dumping breaks.
u8 uart;
u8 type;
u8 state;
u8 mac[6];
u32 last_received_time;
u32 last_status_req_time;
@ -521,7 +560,6 @@ static void _jc_parse_wired_hid(joycon_ctxt_t *jc, const u8* packet, u32 size)
default:
break;
}
jc->last_received_time = get_tmr_ms();
}
static void _jc_parse_wired_init(joycon_ctxt_t *jc, const u8* data, u32 size)
@ -533,6 +571,16 @@ static void _jc_parse_wired_init(joycon_ctxt_t *jc, const u8* data, u32 size)
jc->mac[12 - i] = data[i];
jc->type = data[6];
jc->connected = true;
break;
case JC_WIRED_CMD_SET_BRATE:
jc->state = JC_STATE_BRATE_CHANGED;
break;
case JC_WIRED_CMD_BRATE_DONE:
jc->state = JC_STATE_BRATE_OK;
break;
case JC_WIRED_CMD_INIT_DONE:
case JC_WIRED_CMD_SET_RATE:
// done.
default:
break;
}
@ -550,9 +598,14 @@ static void jc_uart_pkt_parse(joycon_ctxt_t *jc, const u8* packet, size_t size)
case JC_WIRED_INIT_REPLY:
_jc_parse_wired_init(jc, pkt->data, size - sizeof(jc_uart_hdr_t) - 1);
break;
case JC_INIT_HANDSHAKE:
jc->state = JC_STATE_HANDSHAKED;
break;
default:
break;
}
jc->last_received_time = get_tmr_ms();
}
static void _jc_rcv_pkt(joycon_ctxt_t *jc)
@ -795,26 +848,76 @@ static void _jc_init_conn(joycon_ctxt_t *jc)
// Initialize uart to 1 megabaud and manual RTS.
uart_init(jc->uart, 1000000, UART_AO_TX_MN_RX);
jc->state = JC_STATE_START;
uart_invert(jc->uart, true, UART_INVERT_TXD);
uart_set_IIR(jc->uart);
// Wake up the controller.
_joycon_send_raw(jc->uart, init_wake, sizeof(init_wake));
_jc_rcv_pkt(jc); // Clear RX FIFO.
// Do a handshake.
u32 retries = 10;
while (retries && jc->state != JC_STATE_HANDSHAKED)
{
_joycon_send_raw(jc->uart, init_handshake, sizeof(init_handshake));
msleep(5);
_jc_rcv_pkt(jc);
retries--;
}
if (jc->state != JC_STATE_HANDSHAKED)
goto out;
// Get info about the controller.
_joycon_send_raw(jc->uart, init_get_info, sizeof(init_get_info));
msleep(5);
msleep(2);
_jc_rcv_pkt(jc);
if (!(jc->type & JC_ID_HORI))
{
_joycon_send_raw(jc->uart, init_finalize, sizeof(init_finalize));
// Request 3 megabaud change.
_joycon_send_raw(jc->uart, init_switch_brate, sizeof(init_switch_brate));
msleep(2);
_jc_rcv_pkt(jc);
if (jc->state == JC_STATE_BRATE_CHANGED)
{
// Reinitialize uart to 3 megabaud and manual RTS.
uart_init(jc->uart, 3000000, UART_AO_TX_MN_RX);
uart_invert(jc->uart, true, UART_INVERT_TXD | UART_INVERT_RTS);
// Handshake with the new speed.
retries = 10;
while (retries && jc->state != JC_STATE_BRATE_OK)
{
_joycon_send_raw(jc->uart, init_switched_brate, sizeof(init_switched_brate));
msleep(5);
_jc_rcv_pkt(jc);
retries--;
}
if (jc->state != JC_STATE_BRATE_OK)
goto out;
}
// Finalize initialization.
_joycon_send_raw(jc->uart, init_finalize, sizeof(init_finalize));
msleep(2);
_jc_rcv_pkt(jc);
// Set packet rate.
_joycon_send_raw(jc->uart, init_set_rpt_rate, sizeof(init_set_rpt_rate));
msleep(2);
_jc_rcv_pkt(jc);
}
// Initialization done.
jc->state = JC_STATE_INIT_DONE;
out:
jc->last_received_time = get_tmr_ms();
if (jc->connected)