mirror of
git://projects.qi-hardware.com/iris.git
synced 2024-07-02 23:32:57 +03:00
300 lines
9.5 KiB
COBOL
300 lines
9.5 KiB
COBOL
#pypp 0
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// Iris: micro-kernel for a capability-based operating system.
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// boot-programs/nanonote-gpio.ccp: gpio devices on the nanonote.
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// Copyright 2009 Bas Wijnen <wijnen@debian.org>
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//
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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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//
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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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//
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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 <http://www.gnu.org/licenses/>.
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#include "devices.hh"
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#define ARCH
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#include "arch.hh"
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#include "keys.hh"
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//#define QI
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#define SCAN_INTERVAL HZ / 50
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class DevKbd:
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static unsigned const NUM_COLS = 8
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static unsigned const NUM_ROWS = 8
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static unsigned const COLS_PORT = 2
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static unsigned const ROWS_PORT = 3
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static unsigned const ALL_COLS = 0x0003fc00
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static unsigned const ALL_ROWS = 0x05fc0000
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static unsigned const COLS[NUM_COLS]
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static unsigned const ROWS[NUM_ROWS]
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static unsigned const encode[NUM_ROWS][NUM_COLS]
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static unsigned const NUM_KEYS = 58
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static unsigned const keys[NUM_KEYS]
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unsigned state[NUM_COLS]
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Iris::Cap event
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bool is_active
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bool is_scanning
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public:
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unsigned size ():
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return NUM_KEYS
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void send_keys (unsigned first, Iris::Cap target):
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unsigned d[4]
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unsigned i
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for i = 0; first + i < NUM_KEYS && i < 4; ++i:
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d[i] = keys[first + i]
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for ; i < 4; ++i:
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d[i] = ~0
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target.invoke (Iris::Num (d[0], d[1]), Iris::Num (d[2], d[3]))
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bool scanning ():
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return is_scanning
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void inactive ():
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if is_active:
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Iris::free_cap (event)
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is_active = false
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void check (unsigned col, unsigned rowdata):
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for unsigned r = 0; r < NUM_ROWS; ++r:
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if !((rowdata ^ state[col]) & (1 << ROWS[r])):
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continue
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unsigned code = encode[r][col]
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if rowdata & (1 << ROWS[r]):
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code |= Iris::Keyboard::RELEASE
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if is_active:
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event.invoke (code)
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state[col] = rowdata
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void delay ():
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for unsigned i = 0; i < 10000; ++i:
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gpio_set (0, 0)
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void scan ():
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unsigned r
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gpio_mask_irq (ROWS_PORT, ALL_ROWS)
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is_scanning = false
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if !is_active:
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return
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for unsigned c = 0; c < NUM_COLS; ++c:
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gpio_as_input (COLS_PORT, ALL_COLS & ~(1 << COLS[c]))
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gpio_as_output (COLS_PORT, 1 << COLS[c])
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if c > 0:
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check (c - 1, r)
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delay ()
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else:
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check (0, state[0])
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delay ()
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r = gpio_get_port (ROWS_PORT) & ALL_ROWS
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if r != ALL_ROWS:
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is_scanning = true
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gpio_as_output (COLS_PORT, ALL_COLS)
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check (NUM_COLS - 1, r)
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delay ()
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r = gpio_get_port (ROWS_PORT) & ALL_ROWS
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unsigned high = 0, low = 0
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for unsigned i = 0; i < NUM_ROWS; ++i:
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if r & (1 << ROWS[i]):
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low |= 1 << ROWS[i]
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else:
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high |= 1 << ROWS[i]
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gpio_as_interrupt (ROWS_PORT, high, true, true)
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gpio_as_interrupt (ROWS_PORT, low, false, true)
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gpio_unmask_irq (ROWS_PORT, ALL_ROWS)
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void active (Iris::Cap cb):
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inactive ()
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event = cb
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is_active = true
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for unsigned c = 0; c < NUM_COLS; ++c:
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state[c] = ALL_ROWS
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scan ()
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DevKbd ():
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is_active = false
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gpio_as_gpio (COLS_PORT, ALL_COLS)
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gpio_as_gpio (ROWS_PORT, ALL_ROWS)
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gpio_clear (COLS_PORT, ALL_COLS)
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gpio_as_output (COLS_PORT, ALL_COLS)
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gpio_as_input (ROWS_PORT, ALL_ROWS)
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gpio_enable_pull (ROWS_PORT, ALL_ROWS)
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for unsigned i = 0; i < NUM_COLS; ++i:
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state[i] = ALL_ROWS
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scan ()
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unsigned const DevKbd::COLS[NUM_COLS] = { 10, 11, 12, 13, 14, 15, 16, 17 }
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unsigned const DevKbd::ROWS[NUM_ROWS] = { 18, 19, 20, 21, 22, 23, 24, 26 }
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unsigned const DevKbd::encode[NUM_ROWS][NUM_COLS] = {
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#ifdef QI
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{ Key::F1, Key::F2, Key::F3, Key::F4, Key::F5, Key::F6, Key::F7, ~0 },
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{ Key::Q, Key::W, Key::E, Key::R, Key::T, Key::Y, Key::U, Key::I },
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{ Key::A, Key::S, Key::D, Key::F, Key::G, Key::H, Key::J, Key::K },
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{ Key::ESCAPE, Key::Z, Key::X, Key::C, Key::V, Key::B, Key::N, Key::M },
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{ Key::TAB, Key::CAPS, Key::BACKSLASH, Key::QUOTE, Key::COMMA, Key::PERIOD, Key::SLASH, Key::UP },
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{ Key::O, Key::L, Key::EQUAL, Key::ARROW, Key::SPACE, Key::QI, Key::CTRL, Key::LEFT },
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{ Key::F8, Key::P, Key::BACKSPACE, Key::ENTER, Key::VOLUME_UP, Key::VOLUME_DOWN, Key::DOWN, Key::RIGHT },
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{ Key::SHIFT, Key::ALT, Key::FN, ~0, ~0, ~0, ~0, ~0 }
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#else
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{ Key::ESCAPE, Key::TAB, Key::F1, Key::F2, Key::F3, Key::F4, Key::SPECIAL + 0, ~0 },
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{ Key::N1, Key::N2, Key::N3, Key::N4, Key::N5, Key::N6, Key::N7, Key::N8 },
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{ Key::Q, Key::W, Key::E, Key::R, Key::T, Key::Y, Key::U, Key::I },
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{ Key::A, Key::S, Key::D, Key::F, Key::G, Key::H, Key::J, Key::K },
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{ Key::Z, Key::X, Key::C, Key::V, Key::B, Key::N, Key::M, Key::UP },
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{ Key::N9, Key::O, Key::L, Key::LEFT_ALT, Key::CAPS_LOCK, Key::SPACE, Key::EQUALS, Key::LEFT },
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{ Key::BACKSPACE, Key::N0, Key::P, Key::ENTER, Key::VOLUME_UP, Key::VOLUME_DOWN, Key::DOWN, Key::RIGHT },
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{ Key::FN, Key::LEFT_SHIFT, Key::LEFT_CONTROL, ~0, ~0, ~0, ~0, ~0 }
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#endif
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}
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unsigned const DevKbd::keys[NUM_KEYS] = {
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#ifdef QI
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Key::F1, Key::F2, Key::F3, Key::F4, Key::F5, Key::F6, Key::F7,
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Key::Q, Key::W, Key::E, Key::R, Key::T, Key::Y, Key::U, Key::I,
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Key::A, Key::S, Key::D, Key::F, Key::G, Key::H, Key::J, Key::K,
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Key::ESCAPE, Key::Z, Key::X, Key::C, Key::V, Key::B, Key::N, Key::M,
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Key::TAB, Key::CAPS, Key::BACKSLASH, Key::QUOTE, Key::COMMA, Key::PERIOD, Key::SLASH, Key::UP,
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Key::O, Key::L, Key::EQUAL, Key::ARROW, Key::SPACE, Key::QI, Key::CTRL, Key::LEFT,
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Key::F8, Key::P, Key::BACKSPACE, Key::ENTER, Key::VOLUME_UP, Key::VOLUME_DOWN, Key::DOWN, Key::RIGHT,
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Key::SHIFT, Key::ALT, Key::FN
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#else
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Key::ESCAPE, Key::TAB, Key::F1, Key::F2, Key::F3, Key::F4, Key::SPECIAL + 0,
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Key::N1, Key::N2, Key::N3, Key::N4, Key::N5, Key::N6, Key::N7, Key::N8,
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Key::Q, Key::W, Key::E, Key::R, Key::T, Key::Y, Key::U, Key::I,
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Key::A, Key::S, Key::D, Key::F, Key::G, Key::H, Key::J, Key::K,
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Key::Z, Key::X, Key::C, Key::V, Key::B, Key::N, Key::M, Key::UP,
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Key::N9, Key::O, Key::L, Key::LEFT_ALT, Key::CAPS_LOCK, Key::SPACE, Key::EQUALS, Key::LEFT,
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Key::BACKSPACE, Key::N0, Key::P, Key::ENTER, Key::VOLUME_UP, Key::VOLUME_DOWN, Key::DOWN, Key::RIGHT,
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Key::FN, Key::LEFT_SHIFT, Key::LEFT_CONTROL
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#endif
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}
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class Event:
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bool state, started
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unsigned pin
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Iris::Cap cb
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public:
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void scan ():
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if !started:
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return
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gpio_mask_irq (3, 1 << pin)
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bool s = gpio_get_port (3) & (1 << pin)
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if s != state:
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state = s
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cb.invoke (state ? Iris::Keyboard::RELEASE : 0)
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gpio_as_interrupt (3, 1 << pin, !state, true)
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gpio_unmask_irq (3, 1 << pin)
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Event (unsigned p):
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pin = p
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gpio_as_gpio (3, pin)
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state = true
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started = false
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void set_cb (Iris::Cap c):
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if started:
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Iris::free_cap (cb)
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else:
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started = true
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cb = c
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state = true
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scan ()
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enum codes:
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KBD_DEV = 32
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PWR
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SDMMC
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Iris::Num start ():
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map_gpio ()
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DevKbd kbd
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Event pwr (29)
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Event sdmmc (0)
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Iris::Keyboard dev = Iris::my_receiver.create_capability (KBD_DEV)
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Iris::Keyboard pw = Iris::my_receiver.create_capability (PWR)
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Iris::Event sm = Iris::my_receiver.create_capability (SDMMC)
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Iris::my_parent.provide_capability <Iris::Keyboard> (dev.copy (), 0)
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Iris::my_parent.provide_capability <Iris::Keyboard> (pw.copy (), 1)
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Iris::my_parent.provide_capability <Iris::Event> (sm.copy ())
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Iris::free_cap (dev)
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Iris::free_cap (pw)
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Iris::free_cap (sm)
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Iris::my_parent.init_done ()
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if kbd.scanning ():
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Iris::my_receiver.set_alarm (SCAN_INTERVAL)
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Iris::register_interrupt (IRQ_GPIO3)
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while true:
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Iris::wait ()
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if Iris::recv.protected_data.h == ~0:
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// Alarm.
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kbd.scan ()
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if kbd.scanning ():
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Iris::my_receiver.set_alarm (SCAN_INTERVAL)
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continue
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switch Iris::recv.protected_data.l:
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case IRQ_GPIO3:
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// Interrupt.
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pwr.scan ()
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kbd.scan ()
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sdmmc.scan ()
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if kbd.scanning ():
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Iris::my_receiver.set_alarm (SCAN_INTERVAL)
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Iris::register_interrupt (IRQ_GPIO3)
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break
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case KBD_DEV:
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// Keyboard device user request.
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switch Iris::recv.data[0].l:
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case Iris::Device::RESET:
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Iris::recv.reply.invoke ()
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break
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case Iris::Event::SET_CB:
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Iris::Cap reply = Iris::get_reply ()
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kbd.active (Iris::get_arg ())
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reply.invoke ()
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Iris::free_cap (reply)
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break
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case Iris::Keyboard::GET_NUM_KEYS:
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Iris::recv.reply.invoke (kbd.size ())
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break
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case Iris::Keyboard::GET_KEYS:
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kbd.send_keys (Iris::recv.data[0].l, Iris::recv.reply)
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break
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default:
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kdebug ("keyboard other\n")
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break
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break
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case PWR:
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switch Iris::recv.data[0].l:
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case Iris::Device::RESET:
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Iris::recv.reply.invoke ()
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break
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case Iris::Event::SET_CB:
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Iris::Cap reply = Iris::get_reply ()
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pwr.set_cb (Iris::get_arg ())
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reply.invoke ()
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Iris::free_cap (reply)
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break
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default:
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kdebug ("Power button invalid request\n")
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kdebug_num (Iris::recv.data[0].l)
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kdebug ("\n")
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break
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break
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case SDMMC:
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switch Iris::recv.data[0].l:
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case Iris::Device::RESET:
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Iris::recv.reply.invoke ()
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break
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case Iris::Event::SET_CB:
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Iris::Cap reply = Iris::get_reply ()
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sdmmc.set_cb (Iris::get_arg ())
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reply.invoke ()
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Iris::free_cap (reply)
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break
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default:
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kdebug ("SdMmc gpio invalid request\n")
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kdebug_num (Iris::recv.data[0].l)
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kdebug ("\n")
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break
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break
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default:
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kdebug ("keyboard unknown num: ")
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kdebug_num (Iris::recv.protected_data.h)
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kdebug ("\n")
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