merged lume1 branch for LoneOceans' FW3A-Lume1 driver support

1 files changed, 169 insertions, 0 deletions

diff --git a/hwdef-fw3x-lume1.h b/hwdef-fw3x-lume1.h
new file mode 100644
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+++ b/hwdef-fw3x-lume1.h
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+#ifndef HWDEF_FW3X_LUME1_H
+#define HWDEF_FW3X_LUME1_H
+
+/* lume1 Driver Rev B for FW3x driver layout (attiny1634)
+ * www.loneoceans.com/labs/ for more information
+ *
+ * Pin / Name / Function in Lume1 Rev B
+ *   1    PA6   Regulated PWM (PWM1B)
+ *   2    PA5   R red aux LED (PWM0B)
+ *   3    PA4   G green aux LED
+ *   4    PA3   B blue aux LED
+ *   5    PA2   e-switch (PCINT2)
+ *   6    PA1   Jumper 1
+ *   7    PA0   Jumper 2
+ *   8    GND   GND
+ *   9    VCC   VCC
+ *  10    PC5   Jumper 3
+ *  11    PC4   Jumper 4
+ *  12    PC3   RESET
+ *  13    PC2   External Thermal Sensor (ADC11)
+ *  14    PC1   SCK
+ *  15    PC0   N/C
+ *  16    PB3   FET PWM (PWM1A)
+ *  17    PB2   MISO
+ *  18    PB1   MOSI
+ *  19    PB0   ADC5 Voltage Battery Sense (2:1 divider)
+ *  20    PA7   BB_Enable
+ *        ADC12 internal thermal sensor (not used for lume1)
+ *
+ * Main LED power uses one pin as a global Buck Boost Enable, and
+ * one pin to control the power level via PWM. Another pin is used
+ * for FET control.
+ */
+
+#ifdef ATTINY
+#undef ATTINY
+#endif
+#define ATTINY 1634
+#include <avr/io.h>
+
+#define PWM_CHANNELS 2
+// Added for Lume1 Buck Boost Driver
+#define PWM_BITS 10  // 0 to 1023 at 3.9 kHz, not 0 to 255 at 15.6 kHz
+#define PWM_TOP 1023
+
+#define SWITCH_PIN   PA2    // pin 5
+#define SWITCH_PCINT PCINT2 // pin 5 pin change interrupt
+#define SWITCH_PCIE  PCIE0  // PCIE0 is for PCINT[7:0]
+#define SWITCH_PCMSK PCMSK0 // PCMSK0 is for PCINT[7:0]
+#define SWITCH_PORT  PINA   // PINA or PINB or PINC
+
+#define PWM1_PIN PA6        // pin 1, Buck Boost CTRL pin or 7135-eqv PWM
+#define PWM1_LVL OCR1B      // OCR1A is the output compare register for PA6
+
+#define PWM2_PIN PB3        // pin 16, FET PWM Pin, but only used as on (1023) or off (0)
+#define PWM2_LVL OCR1A      // OCR1A is the output compare register for PB3
+
+// Added for Lume1 Buck Boost Driver
+#define LED_ENABLE_PIN  PA7    // pin 20, BuckBoost Enable
+#define LED_ENABLE_PORT PORTA  // control port for PA7
+
+/* // For Jumpers X1 to X4, no SW support yet
+#define JUMPER1_PIN PA1
+#define JUMPER2_PIN PA0
+#define JUMPER3_PIN PC5
+#define JUMPER4_PIN PC4
+*/
+
+#define USE_VOLTAGE_DIVIDER   // use a dedicated pin, not VCC, because VCC input is flattened
+#define VOLTAGE_PIN PB0       // Pin 19  PB0  ADC5
+// pin to ADC mappings are in DS table 19-4
+#define VOLTAGE_ADC ADC5D  // digital input disable pin for PB1
+// DIDR0/DIDR1 mappings are in DS section 19.13.5, 19.13.6
+#define VOLTAGE_ADC_DIDR DIDR1  // DIDR channel for ADC5D
+// DS tables 19-3, 19-4
+// Bit   7     6     5      4     3    2    1    0
+//     REFS1 REFS0 REFEN ADC0EN MUX3 MUX2 MUX1 MUX0
+// MUX[3:0] = 0, 1, 0, 1 for ADC5 / PB0
+// divided by ...
+// REFS[1:0] = 0, 0 for VCC as analog reference at 2.5V
+// other bits reserved
+#define ADMUX_VOLTAGE_DIVIDER 0b00000101
+#define ADC_PRSCL   0x06    // clk/64
+
+// Raw ADC readings at 4.4V and 2.2V
+// calibrate the voltage readout here
+// estimated / calculated values are:
+// [(Vbatt)*(R2/(R2+R1)) / 2.5V] * 1023
+// R1 = R2 = 100kR
+#ifndef ADC_44
+#define ADC_44 900
+#endif
+#ifndef ADC_22
+#define ADC_22 450
+#endif
+
+// Default ADMUX_THERM for Temperature is: 0b10001110 in tk-attiny.h
+// REFS[1:0] as 10 for analog reference at internal 1.1Vref
+// MUX[3:0] as 1110 for ADC'12' - temperature sensor internal
+
+// Modified fsm-adc.c to use different ADMUX and ADC_temperature_handler()
+// based on USE_EXTERNAL_TEMP_SENSOR
+// See line 34 and line 209
+#define USE_EXTERNAL_TEMP_SENSOR
+#define ADMUX_THERM_EXTERNAL_SENSOR 0b00001011  // VCC reference (2.5V), Channel PC2
+// Used for Lume1 Driver: MCP9700 - T_Celsius = 100*(VOUT - 0.5V)
+// ADC is 2.5V reference, 0 to 1023
+// FIXME: due to floating point, this calculation takes 916 extra bytes
+//        (should use an integer equivalent instead)
+#define EXTERN_TEMP_FORMULA(m) (((m)-205)/4.09)
+
+// this driver allows for aux LEDs under the optic
+#define AUXLED_R_PIN    PA5    // pin 2
+#define AUXLED_G_PIN    PA4    // pin 3
+#define AUXLED_B_PIN    PA3    // pin 4
+#define AUXLED_RGB_PORT PORTA  // PORTA or PORTB or PORTC
+#define AUXLED_RGB_DDR  DDRA   // DDRA or DDRB or DDRC
+#define AUXLED_RGB_PUE  PUEA   // PUEA or PUEB or PUEC
+
+// with so many pins, doing this all with #ifdefs gets awkward...
+// ... so just hardcode it in each hwdef file instead
+// For lume1 driver, no SW support for Auxillary Jumpers X1 to X4 yet!
+inline void hwdef_setup() {
+  // enable output ports in Data Direction Registers
+  // FET PWM Pin
+  DDRB = (1 << PWM2_PIN);
+  // Main PWM, Buck Boost Enable Pin, aux R/G/B
+  DDRA = (1 << PWM1_PIN)
+       | (1 << LED_ENABLE_PIN)
+       | (1 << AUXLED_R_PIN)
+       | (1 << AUXLED_G_PIN)
+       | (1 << AUXLED_B_PIN)
+       ;
+  //DDRB&=~(1<<VOLTAGE_PIN); // All pins are input by default
+  /* // For Jumpers X1 to X4, no SW support yet
+  DDRA &= (1<<JUMPER1_PIN);
+  DDRA &= (1<<JUMPER2_PIN);
+  DDRC &= (1<<JUMPER3_PIN);
+  DDRC &= (1<<JUMPER4_PIN);
+  PUEA = (1 << JUMPER1_PIN);
+  PUEA = (1 << JUMPER2_PIN);
+  PUEC = (1 << JUMPER3_PIN);
+  PUEC = (1 << JUMPER4_PIN);
+  */
+
+  // configure PWM for 10 bit at 3.9kHz
+  // Setup PWM. F_pwm = F_clkio / 2 / N / TOP, where N = prescale factor, TOP = top of counter
+  // pre-scale for timer: N = 1
+  // WGM1[3:0]: 0,0,1,1: PWM, Phase Correct, 10-bit (DS table 12-5)
+  // CS1[2:0]:    0,0,1: clk/1 (No prescaling) (DS table 12-6)
+  // COM1A[1:0]:    1,0: PWM OC1A in the normal direction (DS table 12-4)
+  // COM1B[1:0]:    1,0: PWM OC1B in the normal direction (DS table 12-4)
+  TCCR1A  = (1<<WGM11)  | (1<<WGM10)   // 10-bit (TOP=0x03FF) (DS table 12-5)
+          | (1<<COM1A1) | (0<<COM1A0)  // PWM 1A Clear OC1A on Compare Match
+          | (1<<COM1B1) | (0<<COM1B0)  // PWM 1B Clear OC1B on Compare Match
+          ;
+  TCCR1B  = (0<<CS12)   | (0<<CS11) | (1<<CS10)  // clk/1 (no prescaling) (DS table 12-6)
+          | (0<<WGM13)  | (0<<WGM12)  // PWM, Phase Correct, 10-bit
+          ;
+
+  // set up e-switch
+  //PORTA = (1 << SWITCH_PIN);  // TODO: configure PORTA / PORTB / PORTC?
+  PUEA = (1 << SWITCH_PIN);  // pull-up for e-switch
+  SWITCH_PCMSK = (1 << SWITCH_PCINT);  // enable pin change interrupt
+}
+
+#define LAYOUT_DEFINED
+
+#endif