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Signed-off-by: Gergely Nagy <algernon@keyboard.io>
hardware/ploopy
Gergely Nagy 2 years ago
parent 4f98813695
commit d81cdaeb77
No known key found for this signature in database
GPG Key ID: AC1E90BAC433F68F
1 changed files with 37 additions and 37 deletions
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74
src/kaleidoscope/driver/sensor/ADNS5050.h
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@ -28,9 +28,11 @@ namespace driver {
namespace sensor { namespace sensor {
struct ADNS5050BaseProps { struct ADNS5050BaseProps {
static constexpr uint8_t clock_pin = NO_PIN; struct pin {
static constexpr uint8_t io_pin = NO_PIN; static constexpr uint8_t SCLK = NO_PIN;
static constexpr uint8_t chip_select_pin = NO_PIN; static constexpr uint8_t SDIO = NO_PIN;
static constexpr uint8_t NCS = NO_PIN;
};
}; };
template <typename _Props> template <typename _Props>
@ -58,39 +60,39 @@ class ADNS5050 {
}; };
void setup() { void setup() {
static_assert(_Props::clock_pin != NO_PIN, "No clock pin specified!"); static_assert(_Props::pin::SCLK != NO_PIN, "No clock pin specified!");
static_assert(_Props::io_pin != NO_PIN, "No IO pin specified!"); static_assert(_Props::pin::SDIO != NO_PIN, "No IO pin specified!");
static_assert(_Props::chip_select_pin != NO_PIN, "No chip select pin specified!"); static_assert(_Props::pin::NCS != NO_PIN, "No chip select pin specified!");
DDR_OUTPUT(_Props::clock_pin); DDR_OUTPUT(_Props::pin::SCLK);
DDR_OUTPUT(_Props::io_pin); DDR_OUTPUT(_Props::pin::SDIO);
DDR_OUTPUT(_Props::chip_select_pin); DDR_OUTPUT(_Props::pin::NCS);
// 0x5a is chip reset (datasheet page 26) // 0x5a is chip reset (datasheet page 26)
writeRegister(Register::CHIP_RESET, 0x5a); writeRegister(Register::CHIP_RESET, 0x5a);
delay(55); delay(55);
// read an initial report from the sensor, and discard it. // read an initial report from the sensor, and discard it.
readReport(); // readReport();
} }
void sync() { void sync() {
cs_select(); OUTPUT_LOW(_Props::pin::NCS);
delayMicroseconds(1); delayMicroseconds(1);
cs_deselect(); OUTPUT_HIGH(_Props::pin::NCS);
} }
Report readReport() { Report readReport() {
Report report; Report report;
cs_select(); OUTPUT_LOW(_Props::pin::NCS);
serialWrite(Register::MOTION_BURST); serialWrite(Register::MOTION_BURST);
uint8_t x = serialRead(); uint8_t x = serialRead();
uint8_t y = serialRead(); uint8_t y = serialRead();
cs_deselect(); OUTPUT_HIGH(_Props::pin::NCS);
report.dx = convertTwosComp(x); report.dx = convertTwosComp(x);
report.dy = convertTwosComp(y); report.dy = convertTwosComp(y);
@ -123,6 +125,14 @@ class ADNS5050 {
} }
public: public:
struct Timeout {
static constexpr uint16_t WAKEUP = 55000;
static constexpr uint16_t SWW = 30;
static constexpr uint16_t SWR = 20;
static constexpr uint16_t SRW = 1;
static constexpr uint16_t SRR = 1;
static constexpr uint16_t SRAD = 4;
};
enum class Register { enum class Register {
PRODUCT_ID = 0x00, PRODUCT_ID = 0x00,
REVISION_ID = 0x01, REVISION_ID = 0x01,
@ -143,18 +153,18 @@ class ADNS5050 {
} }
uint8_t serialRead() { uint8_t serialRead() {
DDR_INPUT(_Props::io_pin); DDR_INPUT(_Props::pin::SDIO);
delayMicroseconds(1); delayMicroseconds(1);
uint8_t byte; uint8_t byte;
for (uint8_t i = 0; i < 8; i++) { for (uint8_t i = 0; i < 8; i++) {
OUTPUT_LOW(_Props::clock_pin); OUTPUT_LOW(_Props::pin::SCLK);
delayMicroseconds(1); delayMicroseconds(1);
byte = (byte << 1) | READ_PIN(_Props::io_pin); byte = (byte << 1) | READ_PIN(_Props::pin::SDIO);
OUTPUT_HIGH(_Props::clock_pin); OUTPUT_HIGH(_Props::pin::SCLK);
delayMicroseconds(1); delayMicroseconds(1);
} }
@ -162,22 +172,22 @@ class ADNS5050 {
} }
void serialWrite(uint8_t data) { void serialWrite(uint8_t data) {
DDR_OUTPUT(_Props::io_pin); DDR_OUTPUT(_Props::pin::SDIO);
delayMicroseconds(1); delayMicroseconds(1);
for (int8_t i = 7; i >= 0; i--) { for (int8_t i = 7; i >= 0; i--) {
OUTPUT_LOW(_Props::clock_pin); OUTPUT_LOW(_Props::pin::SCLK);
delayMicroseconds(1); delayMicroseconds(1);
if (data && (1 << i)) { if (data && (1 << i)) {
OUTPUT_HIGH(_Props::io_pin); OUTPUT_HIGH(_Props::pin::SDIO);
} else { } else {
OUTPUT_LOW(_Props::io_pin); OUTPUT_LOW(_Props::pin::SDIO);
} }
delayMicroseconds(2); delayMicroseconds(2);
OUTPUT_HIGH(_Props::clock_pin); OUTPUT_HIGH(_Props::pin::SCLK);
delayMicroseconds(1); delayMicroseconds(1);
} }
@ -188,33 +198,23 @@ class ADNS5050 {
} }
uint8_t readRegister(Register reg) { uint8_t readRegister(Register reg) {
cs_select(); OUTPUT_LOW(_Props::pin::NCS);
serialWrite(reg); serialWrite(reg);
uint8_t byte = serialRead(); uint8_t byte = serialRead();
delayMicroseconds(1); delayMicroseconds(1);
cs_deselect(); OUTPUT_HIGH(_Props::pin::NCS);
return byte; return byte;
} }
void writeRegister(Register reg, uint8_t data) { void writeRegister(Register reg, uint8_t data) {
cs_select(); OUTPUT_LOW(_Props::pin::NCS);
serialWrite(0b10000000 | (uint8_t)reg); serialWrite(0b10000000 | (uint8_t)reg);
serialWrite(data); serialWrite(data);
cs_deselect(); OUTPUT_HIGH(_Props::pin::NCS);
}
void cs_select() {
OUTPUT_LOW(_Props::chip_select_pin);
delayMicroseconds(1);
}
void cs_deselect() {
OUTPUT_HIGH(_Props::chip_select_pin);
delayMicroseconds(1);
} }
}; };
} // namespace sensor } // namespace sensor

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