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pico hid: ps/2 bytes and packets queue (#142)

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This commit is contained in:
No0ne
2023-08-22 23:22:36 +02:00
committed by Maxim Devaev
parent 94041d45fc
commit 72df815407
6 changed files with 281 additions and 197 deletions
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219
hid/pico/src/ph_ps2.c
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@@ -24,15 +24,17 @@
#include "ph_types.h"
#include "ph_outputs.h"
#include "ph_ps2.pio.h"
#include "ph_ps2_phy.h"
#include "hardware/gpio.h"
u8 ph_g_ps2_kbd_leds = 0;
bool ph_g_ps2_kbd_online = 0;
bool ph_g_ps2_mouse_online = 0;
ph_ps2_phy ph_ps2_kbd;
ph_ps2_phy ph_ps2_mouse;
uint8_t const mod2ps2[] = { 0x14, 0x12, 0x11, 0x1f, 0x14, 0x59, 0x11, 0x27 };
uint8_t const hid2ps2[] = {
u8 const ph_ps2_mod2ps2[] = { 0x14, 0x12, 0x11, 0x1f, 0x14, 0x59, 0x11, 0x27 };
u8 const ph_ps2_hid2ps2[] = {
0x00, 0x00, 0xfc, 0x00, 0x1c, 0x32, 0x21, 0x23, 0x24, 0x2b, 0x34, 0x33, 0x43, 0x3b, 0x42, 0x4b,
0x3a, 0x31, 0x44, 0x4d, 0x15, 0x2d, 0x1b, 0x2c, 0x3c, 0x2a, 0x1d, 0x22, 0x35, 0x1a, 0x16, 0x1e,
0x26, 0x25, 0x2e, 0x36, 0x3d, 0x3e, 0x46, 0x45, 0x5a, 0x76, 0x66, 0x0d, 0x29, 0x4e, 0x55, 0x54,
@@ -42,32 +44,78 @@ uint8_t const hid2ps2[] = {
0x75, 0x7d, 0x70, 0x71, 0x61, 0x2f, 0x37, 0x0f, 0x08, 0x10, 0x18, 0x20, 0x28, 0x30, 0x38, 0x40,
0x48, 0x50, 0x57, 0x5f
};
uint8_t const maparray = sizeof(hid2ps2) / sizeof(uint8_t);
u8 const ph_ps2_maparray = sizeof(ph_ps2_hid2ps2);
PIO pio = pio0;
uint sm;
uint offset;
void ph_ps2_kbd_send(u8 byte) {
queue_try_add(&ph_ps2_kbd.qbytes, &byte);
}
uint16_t ph_ps2_frame(uint8_t data) {
uint8_t parity = 1;
for (uint8_t i = 0; i < 8; i++) {
parity = parity ^ (data >> i & 1);
void ph_ps2_kbd_maybe_send_e0(u8 byte) {
if (byte == 0x46 ||
(byte >= 0x49 && byte <= 0x52) ||
byte == 0x54 || byte == 0x58 ||
byte == 0x65 || byte == 0x66 ||
byte >= 0x81) {
ph_ps2_kbd_send(0xe0);
}
}
void ph_ps2_kbd_receive(u8 byte) {
switch(byte) {
case 0xed: // CMD: Set LEDs
break;
case 0xf3: // CMD: Set typematic rate and delay
break;
default:
switch(byte) {
case 0xff: // CMD: Reset
//pio_sm_clear_fifos(pio, sm);
//pio_sm_drain_tx_fifo(pio, sm);
ph_ps2_kbd_send(0xfa);
ph_ps2_kbd_send(0xaa);
return;
case 0xfe: // CMD: Resend
return;
case 0xee: // CMD: Echo
ph_ps2_kbd_send(0xee);
return;
case 0xf2: // CMD: Identify keyboard
ph_ps2_kbd_send(0xfa);
ph_ps2_kbd_send(0xab);
ph_ps2_kbd_send(0x83);
return;
case 0xf3: // CMD: Set typematic rate and delay
case 0xed: // CMD: Set LEDs
break;
case 0xf4: // CMD: Enable scanning
break;
case 0xf5: // CMD: Disable scanning, restore default parameters
case 0xf6: // CMD: Set default parameters
break;
}
break;
}
return ((1 << 10) | (parity << 9) | (data << 1)) ^ 0x7ff;
ph_ps2_kbd_send(0xfa);
}
void ph_ps2_kbd_send(uint8_t data) {
pio_sm_put(pio, sm, ph_ps2_frame(data));
}
void ph_ps2_kbd_maybe_send_e0(uint8_t data) {
if (data == 0x46 ||
(data >= 0x49 && data <= 0x52) ||
data == 0x54 || data == 0x58 ||
data == 0x65 || data == 0x66 ||
data >= 0x81) {
ph_ps2_kbd_send(0xe0);
void ph_ps2_mouse_receive(u8 byte) {
switch(byte) {
}
}
@@ -75,85 +123,26 @@ void ph_ps2_init(void) {
if (PH_O_IS_KBD_PS2 || PH_O_IS_MOUSE_PS2) {
gpio_init(13);
gpio_set_dir(13, GPIO_OUT);
gpio_put(13, 1); // LV pull-up voltage
sm = pio_claim_unused_sm(pio, true);
offset = pio_add_program(pio, &ps2device_program);
ps2device_program_init(pio, sm, offset, 14);
gpio_put(13, 1); // GPIO13=LV pull-up voltage
}
if (PH_O_IS_KBD_PS2) {
ph_ps2_phy_init(&ph_ps2_kbd, pio0, 11, &ph_ps2_kbd_receive); // keyboard: GPIO11=data, GPIO12=clock
ph_ps2_kbd_send(0xaa);
}
if (PH_O_IS_MOUSE_PS2) {
ph_ps2_phy_init(&ph_ps2_mouse, pio1, 14, &ph_ps2_mouse_receive); // mouse: GPIO14=data, GPIO15=clock
}
}
void ph_ps2_task(void) {
if (PH_O_IS_KBD_PS2 || PH_O_IS_MOUSE_PS2) {
if (!pio_sm_is_rx_fifo_empty(pio, sm)) {
uint32_t fifo = pio_sm_get(pio, sm);
fifo = fifo >> 23;
uint8_t parity = 1;
for(uint8_t i = 0; i < 8; i++) {
parity = parity ^ (fifo >> i & 1);
}
if(parity != fifo >> 8) {
ph_ps2_kbd_send(0xfe);
return;
}
uint8_t data = fifo;
/*switch() {
case 0xed: // CMD: Set LEDs
break;
case 0xf3: // CMD: Set typematic rate and delay
break;
default:*/
switch(data) {
case 0xff: // CMD: Reset
pio_sm_clear_fifos(pio, sm);
pio_sm_drain_tx_fifo(pio, sm);
ph_ps2_kbd_send(0xfa);
ph_ps2_kbd_send(0xaa);
return;
case 0xfe: // CMD: Resend
return;
case 0xee: // CMD: Echo
ph_ps2_kbd_send(0xee);
return;
case 0xf2: // CMD: Identify keyboard
ph_ps2_kbd_send(0xfa);
ph_ps2_kbd_send(0xab);
ph_ps2_kbd_send(0x83);
return;
case 0xf3: // CMD: Set typematic rate and delay
case 0xed: // CMD: Set LEDs
break;
case 0xf4: // CMD: Enable scanning
break;
case 0xf5: // CMD: Disable scanning, restore default parameters
case 0xf6: // CMD: Set default parameters
break;
}
/* break;
}*/
ph_ps2_kbd_send(0xfa);
}
if (PH_O_IS_KBD_PS2) {
ph_ps2_phy_task(&ph_ps2_kbd);
}
if (PH_O_IS_MOUSE_PS2) {
ph_ps2_phy_task(&ph_ps2_mouse);
}
// Here you should update some values:
// - ph_g_ps2_kbd_leds - keyboard LEDs mask like on USB
@@ -167,25 +156,39 @@ void ph_ps2_kbd_send_key(u8 key, bool state) {
if (PH_O_IS_KBD_PS2) {
if (key >= 0xe0 && key <= 0xe7) {
key -= 0xe0;
if(key > 2 && key != 5) {
if (key > 2 && key != 5) {
ph_ps2_kbd_send(0xe0);
}
if(!state) {
if (!state) {
ph_ps2_kbd_send(0xf0);
}
ph_ps2_kbd_send(mod2ps2[key]);
ph_ps2_kbd_send(ph_ps2_mod2ps2[key]);
} else if (key < maparray) {
ph_ps2_kbd_maybe_send_e0(key);
} else if (key < ph_ps2_maparray) {
if(!state) {
ph_ps2_kbd_send(0xf0);
if (key == 0x48) {
if (state) {
if (false) { // TODO: is shift
ph_ps2_kbd_send(0xe0); ph_ps2_kbd_send(0x7e); ph_ps2_kbd_send(0xe0); ph_ps2_kbd_send(0xf0); ph_ps2_kbd_send(0x7e);
} else {
ph_ps2_kbd_send(0xe1); ph_ps2_kbd_send(0x14); ph_ps2_kbd_send(0x77); ph_ps2_kbd_send(0xe1);
ph_ps2_kbd_send(0xf0); ph_ps2_kbd_send(0x14); ph_ps2_kbd_send(0xf0); ph_ps2_kbd_send(0x77);
}
}
} else {
ph_ps2_kbd_maybe_send_e0(key);
if (!state) {
ph_ps2_kbd_send(0xf0);
}
ph_ps2_kbd_send(ph_ps2_hid2ps2[key]);
}
ph_ps2_kbd_send(hid2ps2[key]);
}
}
}