diff options
Diffstat (limited to 'drivers/sensors/cirque_pinnacle.c')
| -rw-r--r-- | drivers/sensors/cirque_pinnacle.c | 105 |
1 files changed, 77 insertions, 28 deletions
diff --git a/drivers/sensors/cirque_pinnacle.c b/drivers/sensors/cirque_pinnacle.c index 2db7f916fe..1d1e4ccfc6 100644 --- a/drivers/sensors/cirque_pinnacle.c +++ b/drivers/sensors/cirque_pinnacle.c @@ -1,8 +1,13 @@ // Copyright (c) 2018 Cirque Corp. Restrictions apply. See: www.cirque.com/sw-license +// based on https://github.com/cirque-corp/Cirque_Pinnacle_1CA027/tree/master/Circular_Trackpad +// with modifications and changes for QMK +// refer to documentation: Gen2 and Gen3 (Pinnacle ASIC) at https://www.cirque.com/documentation + #include "cirque_pinnacle.h" #include "print.h" #include "debug.h" #include "wait.h" +#include "timer.h" // Registers for RAP // clang-format off @@ -38,11 +43,9 @@ #define ADC_ATTENUATE_3X 0x80 #define ADC_ATTENUATE_4X 0xC0 -// Register config values for this demo -#define SYSCONFIG_1_VALUE 0x00 -#define FEEDCONFIG_1_VALUE 0x03 // 0x03 for absolute mode 0x01 for relative mode -#define FEEDCONFIG_2_VALUE 0x1C // 0x1F for normal functionality 0x1E for intellimouse disabled -#define Z_IDLE_COUNT_VALUE 0x05 +#ifndef CIRQUE_PINNACLE_ATTENUATION +# define CIRQUE_PINNACLE_ATTENUATION ADC_ATTENUATE_4X +#endif // clang-format on bool touchpad_init; @@ -110,16 +113,14 @@ void cirque_pinnacle_clear_flags() { // Enables/Disables the feed void cirque_pinnacle_enable_feed(bool feedEnable) { uint8_t temp; - RAP_ReadBytes(FEEDCONFIG_1, &temp, 1); // Store contents of FeedConfig1 register if (feedEnable) { temp |= 0x01; // Set Feed Enable bit - RAP_Write(0x04, temp); } else { temp &= ~0x01; // Clear Feed Enable bit - RAP_Write(0x04, temp); } + RAP_Write(FEEDCONFIG_1, temp); } /* ERA (Extended Register Access) Functions */ @@ -191,7 +192,7 @@ void cirque_pinnacle_tune_edge_sensitivity(void) { ERA_ReadBytes(0x0168, &temp, 1); } -/* Pinnacle-based TM040040 Functions */ +/* Pinnacle-based TM040040/TM035035/TM023023 Functions */ void cirque_pinnacle_init(void) { #if defined(POINTING_DEVICE_DRIVER_cirque_pinnacle_spi) spi_init(); @@ -200,39 +201,87 @@ void cirque_pinnacle_init(void) { #endif touchpad_init = true; + // Host clears SW_CC flag cirque_pinnacle_clear_flags(); - // Host configures bits of registers 0x03 and 0x05 - RAP_Write(SYSCONFIG_1, SYSCONFIG_1_VALUE); - RAP_Write(FEEDCONFIG_2, FEEDCONFIG_2_VALUE); - - // Host enables preferred output mode (absolute) - RAP_Write(FEEDCONFIG_1, FEEDCONFIG_1_VALUE); + // SysConfig1 (Low Power Mode) + // Bit 0: Reset, 1=Reset + // Bit 1: Shutdown, 1=Shutdown, 0=Active + // Bit 2: Sleep Enable, 1=low power mode, 0=normal mode + // send a RESET command now, in case QMK had a soft-reset without a power cycle + RAP_Write(SYSCONFIG_1, 0x01); + wait_ms(30); // Pinnacle needs 10-15ms to boot, so wait long enough before configuring + RAP_Write(SYSCONFIG_1, 0x00); + wait_us(50); - // Host sets z-idle packet count to 5 (default is 30) - RAP_Write(Z_IDLE_COUNT, Z_IDLE_COUNT_VALUE); + // FeedConfig2 (Feature flags for Relative Mode Only) + // Bit 0: IntelliMouse Enable, 1=enable, 0=disable + // Bit 1: All Taps Disable, 1=disable, 0=enable + // Bit 2: Secondary Tap Disable, 1=disable, 0=enable + // Bit 3: Scroll Disable, 1=disable, 0=enable + // Bit 4: GlideExtend® Disable, 1=disable, 0=enable + // Bit 5: reserved + // Bit 6: reserved + // Bit 7: Swap X & Y, 1=90° rotation, 0=0° rotation + RAP_Write(FEEDCONFIG_2, 0x00); + + // FeedConfig1 (Data Output Flags) + // Bit 0: Feed enable, 1=feed, 0=no feed + // Bit 1: Data mode, 1=absolute, 0=relative + // Bit 2: Filter disable, 1=no filter, 0=filter + // Bit 3: X disable, 1=no X data, 0=X data + // Bit 4: Y disable, 1=no Y data, 0=Y data + // Bit 5: reserved + // Bit 6: X data Invert, 1=X max to 0, 0=0 to Y max + // Bit 7: Y data Invert, 1=Y max to 0, 0=0 to Y max + RAP_Write(FEEDCONFIG_1, CIRQUE_PINNACLE_POSITION_MODE << 1); + + // Host sets z-idle packet count to 5 (default is 0x1F/30) + RAP_Write(Z_IDLE_COUNT, 5); + + cirque_pinnacle_set_adc_attenuation(CIRQUE_PINNACLE_ATTENUATION); - cirque_pinnacle_set_adc_attenuation(0xFF); cirque_pinnacle_tune_edge_sensitivity(); cirque_pinnacle_enable_feed(true); } -// Reads XYZ data from Pinnacle registers 0x14 through 0x17 -// Stores result in pinnacle_data_t struct with xValue, yValue, and zValue members pinnacle_data_t cirque_pinnacle_read_data(void) { - uint8_t data[6] = {0}; - pinnacle_data_t result = {0}; + uint8_t data_ready = 0; + uint8_t data[6] = {0}; + pinnacle_data_t result = {0}; + + // Check if there is valid data available + RAP_ReadBytes(STATUS_1, &data_ready, 1); // bit2 is Software Data Ready, bit3 is Command Complete, bit0 and bit1 are reserved/unused + if ((data_ready & 0x04) == 0) { + // no data available yet + result.valid = false; // be explicit + return result; + } + + // Read all data bytes RAP_ReadBytes(PACKET_BYTE_0, data, 6); + // Get ready for the next data sample cirque_pinnacle_clear_flags(); - result.buttonFlags = data[0] & 0x3F; - result.xValue = data[2] | ((data[4] & 0x0F) << 8); - result.yValue = data[3] | ((data[4] & 0xF0) << 4); - result.zValue = data[5] & 0x3F; - - result.touchDown = (result.xValue != 0 || result.yValue != 0); +#if CIRQUE_PINNACLE_POSITION_MODE + // Decode data for absolute mode + // Register 0x13 is unused in this mode (palm detection area) + result.buttonFlags = data[0] & 0x3F; // bit0 to bit5 are switch 0-5, only hardware button presses (from input pin on the Pinnacle chip) + result.xValue = data[2] | ((data[4] & 0x0F) << 8); // merge high and low bits for X + result.yValue = data[3] | ((data[4] & 0xF0) << 4); // merge high and low bits for Y + result.zValue = data[5] & 0x3F; // Z is only lower 6 bits, upper 2 bits are reserved/unused + result.touchDown = (result.xValue != 0 || result.yValue != 0); // (0,0) is a "magic coordinate" to indicate "finger touched down" +#else + // Decode data for relative mode + // Registers 0x16 and 0x17 are unused in this mode + result.buttons = data[0] & 0x07; // bit0 = primary button, bit1 = secondary button, bit2 = auxilary button, if Taps enabled then also software-recognized taps are reported + result.xDelta = data[1]; + result.yDelta = data[2]; + result.wheelCount = data[3]; +#endif + result.valid = true; return result; } |