# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1610228311 -3600
# Node ID d5d13bb3a2f0545767d0dd98800c4e22d72f4ebc
# Parent  84945015fb9c287520e6ba1bdb6c9ce4bf349123
Added configuration files for the Letux 400 I2C example.

diff -r 84945015fb9c -r d5d13bb3a2f0 conf/landfall-examples/mips-letux400-i2c.cfg
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/conf/landfall-examples/mips-letux400-i2c.cfg	Sat Jan 09 22:38:31 2021 +0100
@@ -0,0 +1,136 @@
+-- vim: ft=lua ts=2 et sw=2
+  
+-- Start Mag to multiplex the framebuffer showing only a single program.
+-- This example shows a framebuffer terminal showing the hello example's output.
+-- The target platform is the Letux 400 notebook computer.
+
+local L4 = require("L4");
+
+local l = L4.default_loader;
+
+-- Define general access to peripherals.
+
+local io_buses = {
+    cpm     = l:new_channel();
+    gpio    = l:new_channel();
+    i2c     = l:new_channel();
+    lcd     = l:new_channel();
+    pwm     = l:new_channel(); -- exposes GPIO, PWM
+  };
+
+l:start({
+    caps = {
+      cpm    = io_buses.cpm:svr(),
+      gpio   = io_buses.gpio:svr(),
+      i2c    = io_buses.i2c:svr(),
+      lcd    = io_buses.lcd:svr(),
+      pwm    = io_buses.pwm:svr(),
+
+      icu    = L4.Env.icu,
+      sigma0 = L4.cast(L4.Proto.Factory, L4.Env.sigma0):create(L4.Proto.Sigma0),
+    },
+  },
+  "rom/io rom/hw_devices.io rom/mips-letux400-common.io");
+
+-- Expose a PWM peripheral as a device.
+
+local pwm = l:new_channel();
+
+l:startv({
+    caps = {
+      vbus = io_buses.pwm,
+      pwm  = pwm:svr(),
+    },
+  },
+  "rom/dev_pwm_jz4730", "0", "250", "299", "47"); -- specifying peripheral number, parameters
+
+-- Expose a PWM backlight device.
+
+local backlight = l:new_channel(); -- exposes backlight device
+
+l:startv({
+    caps = {
+      pwm       = pwm,
+      backlight = backlight:svr(),
+    },
+  },
+  "rom/dev_backlight_pwm", "0", "300"); -- specifying limits
+
+-- Expose a display device for the Letux.
+
+local display = l:new_channel(); -- exposes display device
+
+l:start({
+    caps = {
+      backlight = backlight,
+      display   = display:svr(),
+      vbus      = io_buses.gpio,
+    },
+  },
+  "rom/dev_display_letux400");
+
+-- Expose the CPM peripheral.
+
+local cpm = l:new_channel();
+
+l:start({
+  caps = {
+      vbus    = io_buses.cpm,
+      cpm     = cpm:svr(),
+    },
+  },
+  "rom/dev_cpm_jz4730");
+
+-- Expose a framebuffer device.
+
+local fbdrv_fb = l:new_channel();
+
+l:start({
+    caps = {
+      vbus    = io_buses.lcd,
+      fb      = fbdrv_fb:svr(),
+      cpm     = cpm,
+      display = display, -- needed by LCD driver
+    },
+  },
+  "rom/fb-drv");
+
+-- Multiplex the framebuffer.
+
+local mag_caps = {
+    mag = l:new_channel(),
+    svc = l:new_channel(),
+  };
+
+l:start({
+    caps = {
+      vbus = io_buses.gpio, -- needed by input driver
+      fb   = fbdrv_fb,
+      mag  = mag_caps.mag:svr(),
+      svc  = mag_caps.svc:svr(),
+    },
+  },
+  "rom/mag");
+
+-- Show the terminal.
+
+local term = l:new_channel();
+
+l:start({
+    caps = {
+      fb = mag_caps.svc:create(L4.Proto.Goos, "g=800x460+0+0", "barheight=20"),
+      term = term:svr(),
+    },
+  },
+  "rom/fbterminal");
+
+-- Show the I2C example.
+
+l:start({
+    caps = {
+      icu  = L4.Env.icu,
+      vbus = io_buses.i2c,
+    },
+    log_cap = term,
+  },
+  "rom/ex_letux400_i2c");
diff -r 84945015fb9c -r d5d13bb3a2f0 conf/landfall-examples/mips-letux400-i2c.list
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/conf/landfall-examples/mips-letux400-i2c.list	Sat Jan 09 22:38:31 2021 +0100
@@ -0,0 +1,47 @@
+
+modaddr 0x1100000
+
+entry mips-letux400-i2c-example
+bootstrap bootstrap -serial
+kernel fiasco -serial_esc
+roottask moe rom/mips-letux400-i2c.cfg
+module mips-letux400-i2c.cfg
+module mips-letux400-common.io
+module plat-letux400/hw_devices.io
+module l4re
+module io
+module ned
+module fb-drv
+module mag
+module dev_pwm_jz4730
+module dev_backlight_pwm
+module dev_display_letux400
+module dev_cpm_jz4730
+module fbterminal
+module ex_letux400_i2c
+module libpanel_letux400.so
+module mips-jz4740-panel.txt
+module lib4re-c.so
+module lib4re-c-util.so
+module lib4re.so
+module lib4re-util.so
+module libc_be_l4refile.so
+module libc_be_l4re.so
+module libc_be_socket_noop.so
+module libcpm.o.so
+module libc_support_misc.so
+module libdevice_util.o.so
+module libdl.so
+module libgpio.o.so
+module libio-io.so
+module libio-vbus.so
+module libipc.so
+module libl4sys-direct.so
+module libl4sys.so
+module libl4util.so
+module liblcd_jz4740.o.so
+module libld-l4.so
+module libpthread.so
+module libpwm.o.so
+module libsupc++.so
+module libuc_c.so