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os: move synaptics_dsx touch driver to imx repo
Ref genodelabs/genode#5252
This commit is contained in:
Stefan Kalkowski
Norman Feske
parent
6162eae9e0
commit
86386548c0
@ -1,183 +0,0 @@
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/*
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* \brief Driver for the i.MX53 i2c controller
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* \author Stefan Kalkowski
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* \date 2013-03-15
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*/
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/*
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* Copyright (C) 2013-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _DRIVERS__INPUT__SPEC__IMX53__I2C_H_
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#define _DRIVERS__INPUT__SPEC__IMX53__I2C_H_
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/* Genode includes */
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#include <platform_session/device.h>
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#include <timer_session/connection.h>
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/* local includes */
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#include "irq_handler.h"
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namespace I2c
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{
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class I2c;
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}
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class I2c::I2c : Platform::Device::Mmio<0x12>
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{
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private:
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struct Address : public Register<0x0, 16>
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{
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struct Addr : Bitfield<1,7> {};
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};
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struct Freq_divider : public Register<0x4, 16> {};
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struct Control : public Register<0x8, 16>
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{
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struct Repeat_start : Bitfield<2,1> {};
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struct Tx_ack_enable : Bitfield<3,1> {};
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struct Tx_rx_select : Bitfield<4,1> {};
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struct Master_slave_select : Bitfield<5,1> {};
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struct Irq_enable : Bitfield<6,1> {};
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struct Enable : Bitfield<7,1> {};
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};
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struct Status : public Register<0xc, 16>
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{
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struct Rcv_ack : Bitfield<0,1> {};
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struct Irq : Bitfield<1,1> {};
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struct Slave_rw : Bitfield<2,1> {};
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struct Arbitration_lost : Bitfield<4,1> {};
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struct Busy : Bitfield<5,1> {};
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struct Addressed_as_slave : Bitfield<6,1> {};
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struct Data_transfer : Bitfield<7,1> {};
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};
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struct Data : public Register<0x10, 16> { };
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class No_ack : Genode::Exception {};
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Irq_handler _irq_handler;
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void _busy() { while (!read<Status::Busy>()); }
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void _start()
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{
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/* clock enable */
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/* input root 90 is 25Mhz target is 400Khz, divide by 64 */
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write<Freq_divider>(0x2a);
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write<Status>(0);
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write<Control>(Control::Enable::bits(1));
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while (!read<Control::Enable>()) { ; }
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write<Control::Master_slave_select>(1);
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_busy();
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write<Control>(Control::Tx_rx_select::bits(1) |
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Control::Tx_ack_enable::bits(1) |
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Control::Irq_enable::bits(1) |
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Control::Master_slave_select::bits(1) |
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Control::Enable::bits(1));
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}
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void _stop()
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{
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write<Control>(0);
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/* clock disable */
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}
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void _write(Genode::uint8_t value)
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{
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write<Data>(value);
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do { _irq_handler.wait(); }
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while (!read<Status::Irq>());
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write<Status::Irq>(0);
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_irq_handler.ack();
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if (read<Status::Rcv_ack>()) throw No_ack();
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}
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public:
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I2c(Genode::Env & env, Platform::Device & dev)
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: Platform::Device::Mmio<SIZE>(dev, {0}),
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_irq_handler(env, dev)
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{
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write<Control>(0);
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write<Status>(0);
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}
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void send(Genode::uint8_t addr, const Genode::uint8_t *buf,
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Genode::size_t num)
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{
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while (true) {
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try {
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_start();
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_write(addr << 1);
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for (Genode::size_t i = 0; i < num; i++)
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_write(buf[i]);
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_stop();
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return;
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} catch(No_ack) { }
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_stop();
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}
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}
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void recv(Genode::uint8_t addr, Genode::uint8_t *buf,
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Genode::size_t num)
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{
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while (true) {
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try {
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_start();
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_write((Genode::uint8_t)(addr << 1 | 1));
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write<Control::Tx_rx_select>(0);
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if (num > 1)
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write<Control::Tx_ack_enable>(0);
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read<Data>(); /* dummy read */
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for (Genode::size_t i = 0; i < num; i++) {
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do { _irq_handler.wait(); }
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while (!read<Status::Irq>());
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write<Status::Irq>(0);
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if (i == num-1) {
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write<Control::Tx_rx_select>(0);
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write<Control::Master_slave_select>(0);
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while (read<Status::Busy>()) ;
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} else if (i == num-2) {
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write<Control::Tx_ack_enable>(1);
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}
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buf[i] = (Genode::uint8_t)read<Data>();
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_irq_handler.ack();
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}
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_stop();
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return;
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} catch(No_ack) {
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Genode::log("no ack");
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_stop();
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}
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}
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}
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};
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#endif /* _DRIVERS__INPUT__SPEC__IMX53__I2C_H_ */
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@ -1,52 +0,0 @@
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/*
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* \brief Input-interrupt handler
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* \author Josef Soentgen
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* \date 2015-04-08
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*/
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/*
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* Copyright (C) 2015-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _IRQ_HANDLER_H_
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#define _IRQ_HANDLER_H_
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/* Genode includes */
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#include <platform_session/device.h>
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class Irq_handler
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{
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private:
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unsigned _sem_cnt = 1;
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void _handle() { _sem_cnt = 0; }
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Platform::Device::Irq _irq;
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Genode::Entrypoint & _ep;
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Genode::Io_signal_handler<Irq_handler> _handler { _ep, *this, &Irq_handler::_handle };
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public:
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Irq_handler(Genode::Env & env, Platform::Device & dev)
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:
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_irq(dev, { 0 }), _ep(env.ep())
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{
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_irq.sigh(_handler);
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_irq.ack();
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}
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void wait()
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{
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_sem_cnt++;
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while (_sem_cnt > 0)
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_ep.wait_and_dispatch_one_io_signal();
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}
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void ack() { _irq.ack(); }
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};
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#endif /* _IRQ_HANDLER_H_ */
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@ -1,156 +0,0 @@
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/**
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* \brief Synaptics DSX touch input
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* \author Sebastian Sumpf
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* \date 2020-09-03
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*/
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/*
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* Copyright (C) 2020 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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/* Genode includes */
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#include <base/attached_dataspace.h>
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#include <base/component.h>
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#include <base/env.h>
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#include <event_session/connection.h>
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#include <gpio_session/connection.h>
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#include <platform_session/device.h>
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#include <i2c.h>
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using namespace Genode;
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struct Finger_data
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{
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uint8_t status;
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uint8_t x_lsb;
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uint8_t x_msb;
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uint8_t y_lsb;
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uint8_t y_msb;
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uint8_t wx;
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uint8_t wy;
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unsigned x() const
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{
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return 1080 - ((x_msb << 8) | x_lsb);
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}
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unsigned y() const
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{
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return 1920 - ((y_msb << 8) | y_lsb);
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}
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void dump() const
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{
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log("status: ", Hex(status),
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" x_lsb: ", x_lsb, " x_msb: ", x_msb,
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" y_lsb: ", y_lsb, " y_msb: ", y_msb,
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" wx: ", wx, " wy: ", wy,
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" x: ", x(),
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" y: ", y());
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}
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};
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struct Synaptics
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{
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enum { FINGERS = 5, I2C_ADDR = 0x20, };
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enum Gpio_irq { IRQ = 135 };
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Genode::Env &env;
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I2c::I2c _i2c;
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Gpio::Connection _gpio { env, IRQ };
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Irq_session_client _irq { _gpio.irq_session(Gpio::Session::LOW_LEVEL) };
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Io_signal_handler<Synaptics> _irq_dispatcher { env.ep(), *this, &Synaptics::_handle_irq };
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Event::Connection _event { env };
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uint8_t _buf[10];
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bool _button[FINGERS] { };
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void _handle_event(Event::Session_client::Batch &batch)
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{
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/* retrieve status */
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Finger_data fingers[FINGERS];
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_buf[0] = 6;
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_i2c.send(I2C_ADDR, _buf, 1);
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_i2c.recv(I2C_ADDR, (uint8_t *)fingers, sizeof(fingers));
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for (unsigned i = 0; i < FINGERS; i++) {
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Finger_data ¤t = fingers[i];
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Input::Touch_id id { i };
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if (current.status == 0) {
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if (_button[i]) {
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batch.submit(Input::Release{Input::BTN_LEFT});
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batch.submit(Input::Touch_release{id});
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_button[i] = false;
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}
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continue;
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}
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batch.submit(Input::Absolute_motion { (int)current.x(), (int)current.y() });
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batch.submit(Input::Touch { id, (float)current.x(), (float)current.y() });
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if (_button[i] == false) {
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batch.submit(Input::Press { Input::BTN_LEFT });
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}
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_button[i] = true;
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}
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}
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void _handle_irq()
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{
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/* read device IRQ */
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_buf[0] = 4;
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_i2c.send(I2C_ADDR, _buf, 1);
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_i2c.recv(I2C_ADDR, _buf, 2);
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_event.with_batch([&] (Event::Session_client::Batch &batch) {
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_handle_event(batch);
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});
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_irq.ack_irq();
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}
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Synaptics(Env &env, Platform::Device & i2c_dev)
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: env(env), _i2c(env, i2c_dev)
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{
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/* set page 0 */
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_buf[0] = 0xff;
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_buf[1] = 0;
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_i2c.send(I2C_ADDR, _buf, 2);
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/* enable interrupt */
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_buf[0] = 0xf;
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_buf[1] = 0x16;
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_i2c.send(I2C_ADDR, _buf, 2);
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/* set configured */
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_buf[0] = 0xe;
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_buf[1] = 0x84;
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_i2c.send(I2C_ADDR, _buf, 2);
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/* GPIO touchscreen handling */
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_gpio.direction(Gpio::Session::IN);
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_irq.sigh(_irq_dispatcher);
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_irq.ack_irq();
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}
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};
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struct Main
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{
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Genode::Env & _env;
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Platform::Connection _platform { _env };
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Platform::Device _device { _platform };
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Synaptics _synaptics { _env, _device };
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Main(Env &env) : _env(env) { }
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};
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void Component::construct(Genode::Env &env) { static Main main(env); }
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@ -1,5 +0,0 @@
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TARGET = imx8_synaptics_touch
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REQUIRES = arm_v8
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SRC_CC = main.cc
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LIBS = base
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INC_DIR += $(PRG_DIR)
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