mirror of
https://github.com/dingusdev/dingusppc.git
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58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
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/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-22 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/** @file Generic PROM device programmable over I2C. */
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#ifndef I2C_PROM_H
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#define I2C_PROM_H
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#include <devices/common/hwcomponent.h>
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#include <devices/common/i2c/i2c.h>
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#include <cinttypes>
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#include <memory>
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class I2CProm : public I2CDevice, public HWComponent
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{
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public:
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I2CProm(uint8_t dev_addr, int size);
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~I2CProm() = default;
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// I2CDevice methods
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void start_transaction();
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bool send_subaddress(uint8_t sub_addr);
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bool send_byte(uint8_t data);
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bool receive_byte(uint8_t* p_data);
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// data management methods
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void fill_memory(int start, int size, uint8_t c);
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void set_memory(int start, const uint8_t* in_data, int size);
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private:
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std::unique_ptr<uint8_t[]> data;
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int rom_size = 0;
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int pos = 0;
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uint8_t my_addr = 0xA0;
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};
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#endif // I2C_PROM_H
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