mirror of
https://github.com/livingcomputermuseum/UniBone.git
synced 2026-01-29 21:21:25 +00:00
135 lines
4.4 KiB
C++
135 lines
4.4 KiB
C++
/* panels.hpp: a device to access lamps & buttons connected over I2C bus
|
|
|
|
Copyright (c) 2018, Joerg Hoppe
|
|
j_hoppe@t-online.de, www.retrocmp.com
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a
|
|
copy of this software and associated documentation files (the "Software"),
|
|
to deal in the Software without restriction, including without limitation
|
|
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
and/or sell copies of the Software, and to permit persons to whom the
|
|
Software is furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
JOERG HOPPE BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
|
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
|
|
12-nov-2018 JH entered beta phase
|
|
*/
|
|
|
|
#include "utils.hpp"
|
|
#include "device.hpp"
|
|
#include "parameter.hpp"
|
|
|
|
// describes the register of an I2C bus chip
|
|
class i2c_chip_register_c {
|
|
public:
|
|
uint8_t chip_addr;
|
|
uint8_t reg_addr;bool is_input;
|
|
uint8_t invert_mask; // these GPIO work inverted
|
|
i2c_chip_register_c(uint8_t chip_addr, uint8_t reg_addr, bool is_input,
|
|
uint8_t invert_mask) {
|
|
this->chip_addr = chip_addr;
|
|
this->reg_addr = reg_addr;
|
|
this->is_input = is_input;
|
|
this->invert_mask = invert_mask;
|
|
}
|
|
};
|
|
|
|
/* one instance of a lamp or button on one of the panels
|
|
* may be linked to a device parameter*/
|
|
class panelcontrol_c {
|
|
public:
|
|
// unique identifier is combination of arbitary device anen
|
|
// and arbitrary control name.
|
|
// device name ideally same as device-> name
|
|
// control name ideally same as deviceparameter->name
|
|
string device_name; // "rl1"
|
|
string control_name; // "load_button"
|
|
string full_name();
|
|
|
|
bool is_input; // false = 0 = output
|
|
unsigned bitwidth = 1; // later non-binary controls?
|
|
// bool inverted ; // help interpret GPIO signals
|
|
|
|
// parameter interface
|
|
parameter_c *parameter; // link
|
|
|
|
// i2c interface
|
|
uint8_t chip_addr; // addr of chip in I2C addr space
|
|
uint8_t reg_addr; // register address of GPIO port inside chip
|
|
uint8_t reg_bitmask; // bit positions in device GPIO registers
|
|
|
|
// run time data
|
|
bool value_invalid;
|
|
unsigned value; // input or output
|
|
|
|
// output lamps can be linekd to their including buttons
|
|
panelcontrol_c *associate;
|
|
|
|
panelcontrol_c(string device_name, string control_name,
|
|
bool is_input, uint8_t chip_addr, uint8_t reg_addr, uint8_t reg_bitmask);
|
|
|
|
void set_param_from_register_value(i2c_chip_register_c *chip_register, uint8_t reg_value);
|
|
uint8_t get_param_as_register_value(i2c_chip_register_c *chip_register);
|
|
|
|
};
|
|
|
|
/* manages the I2C hardware and updates parameters */
|
|
class paneldriver_c: public device_c {
|
|
private:
|
|
int i2c_device_file; // file handle to I2C bus devive
|
|
const char *i2c_device_fname = "/dev/i2c-2"; // BUS I2C2
|
|
|
|
vector<i2c_chip_register_c> i2c_chip_registers;
|
|
|
|
public:
|
|
paneldriver_c();
|
|
~paneldriver_c();
|
|
|
|
bool on_param_changed(parameter_c *param) override; // must implement
|
|
|
|
vector<panelcontrol_c *> controls;
|
|
|
|
void unregister_controls(void); // clear static list of all connected controls
|
|
void register_controls(void); // build static list of all connected controls
|
|
panelcontrol_c *control_by_name(string device_name, string control_name);
|
|
|
|
void reset(void);
|
|
|
|
// low level I2C register access
|
|
bool i2c_read_byte(uint8_t slave_addr, uint8_t reg_addr, uint8_t *result);
|
|
|
|
bool i2c_write_byte(uint8_t slave_addr, uint8_t reg_addr, uint8_t b);
|
|
|
|
void i2c_sync_all_params();
|
|
|
|
// background worker function
|
|
void worker(unsigned instance) override;
|
|
|
|
void on_power_changed(void) override; // must implement
|
|
void on_init_changed(void) override; // must implement
|
|
|
|
void clear_all_outputs(void);
|
|
|
|
// link_control_to_parameter(new panelcontrol_c()) ;
|
|
void link_control_to_parameter(parameter_c *deviceparameter, panelcontrol_c *panelcontrol);
|
|
void unlink_controls_from_device(device_c *device);
|
|
|
|
void refresh_params(device_c *device);
|
|
|
|
void test_moving_ones(void);
|
|
void test_manual_loopback(void);
|
|
|
|
};
|
|
|
|
extern paneldriver_c *paneldriver; // another Singleton
|
|
|