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* reMarkable port Mostly based on the sony-prstux port * remarkable: no longer using lj-wpaclient * remarkable: add simple button listener launcher Assumes the koreader systemd unit is installed correctly. Launch koreader when the middle (home) button is held for 3 seconds. Inspired by https://github.com/dixonary/button-capture-reMarkable but significantly simpler. * remarkable: include fbink & fbdepth * remarkable: add fake event generation USB Plug/Unplug, charge status change. Seems to take a minute or two from USB Unplug to the battery state changing to discharging in sysfs. * remarkable: switch to remarkable toolchain Rather than reusing kobo toolchain. Built from koxtoolchain. * Reorder some lists alphabetically * remarkable: strip fbdepth As on Kobo
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| #include <linux/input.h> | ||
| #include <stdio.h> | ||
| #include <time.h> | ||
| #include <stdlib.h> | ||
|
|
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| static double timeval_diff(struct timeval const* start, struct timeval const* end) | ||
| { | ||
| double s = (double)end->tv_sec - (double)start->tv_sec; | ||
| double us = (double)end->tv_usec - (double)start->tv_usec; | ||
| return s + (us / 1e6); | ||
| } | ||
|
|
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| int main(int argc, char** argv) | ||
| { | ||
| FILE* evf = fopen("/dev/input/event2", "rb"); | ||
| if(!evf) { | ||
| fprintf(stderr, "Could not open /dev/input/event2\n"); | ||
| return 1; | ||
| } | ||
|
|
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| struct input_event ev; | ||
| struct timeval press_stamp = {0}; | ||
| while(1) { | ||
| size_t sz = fread(&ev, sizeof(ev), 1, evf); | ||
| if(sz == 0) { | ||
| return 1; | ||
| } | ||
| if(ev.type == EV_KEY && ev.code == KEY_HOME) { | ||
| if(ev.value == 0) { /* keyrelease */ | ||
| double t = timeval_diff(&press_stamp, &ev.time); | ||
| /* hold home (middle) button for 3 seconds to start koreader */ | ||
| if(t >= 3.0) { | ||
| system("systemctl start koreader"); | ||
| } | ||
| } | ||
| else if(ev.value == 1) { /* keypress */ | ||
| press_stamp = ev.time; | ||
| } | ||
| } | ||
| } | ||
| } |
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| /* | ||
| * Copyright (C) 2013-2015 Freescale Semiconductor, Inc. All Rights Reserved | ||
| */ | ||
|
|
||
| /* | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation; either version 2 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License along | ||
| * with this program; if not, write to the Free Software Foundation, Inc., | ||
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| */ | ||
|
|
||
| /* Original source: | ||
| * https://github.com/reMarkable/linux/blob/zero-gravitas/include/uapi/linux/mxcfb.h | ||
| * Waveform modes constants originally from libremarkable: | ||
| * https://github.com/canselcik/libremarkable | ||
| * Then later cleaned up thanks to the official SDK: | ||
| * https://remarkable.engineering/ | ||
| */ | ||
|
|
||
| /* | ||
| * @file uapi/linux/mxcfb.h | ||
| * | ||
| * @brief Global header file for the MXC frame buffer | ||
| * | ||
| * @ingroup Framebuffer | ||
| */ | ||
| #ifndef __ASM_ARCH_MXCFB_H__ | ||
| #define __ASM_ARCH_MXCFB_H__ | ||
|
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| #include <linux/fb.h> | ||
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||
| #define FB_SYNC_OE_LOW_ACT 0x80000000 | ||
| #define FB_SYNC_CLK_LAT_FALL 0x40000000 | ||
| #define FB_SYNC_DATA_INVERT 0x20000000 | ||
| #define FB_SYNC_CLK_IDLE_EN 0x10000000 | ||
| #define FB_SYNC_SHARP_MODE 0x08000000 | ||
| #define FB_SYNC_SWAP_RGB 0x04000000 | ||
| #define FB_ACCEL_TRIPLE_FLAG 0x00000000 | ||
| #define FB_ACCEL_DOUBLE_FLAG 0x00000001 | ||
|
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| struct mxcfb_gbl_alpha { | ||
| int enable; | ||
| int alpha; | ||
| }; | ||
|
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| struct mxcfb_loc_alpha { | ||
| int enable; | ||
| int alpha_in_pixel; | ||
| unsigned long alpha_phy_addr0; | ||
| unsigned long alpha_phy_addr1; | ||
| }; | ||
|
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| struct mxcfb_color_key { | ||
| int enable; | ||
| __u32 color_key; | ||
| }; | ||
|
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| struct mxcfb_pos { | ||
| __u16 x; | ||
| __u16 y; | ||
| }; | ||
|
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| struct mxcfb_gamma { | ||
| int enable; | ||
| int constk[16]; | ||
| int slopek[16]; | ||
| }; | ||
|
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| struct mxcfb_gpu_split_fmt { | ||
| struct fb_var_screeninfo var; | ||
| unsigned long offset; | ||
| }; | ||
|
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| struct mxcfb_rect { | ||
| __u32 top; | ||
| __u32 left; | ||
| __u32 width; | ||
| __u32 height; | ||
| }; | ||
|
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||
| #define GRAYSCALE_8BIT 0x1 | ||
| #define GRAYSCALE_8BIT_INVERTED 0x2 | ||
| #define GRAYSCALE_4BIT 0x3 | ||
| #define GRAYSCALE_4BIT_INVERTED 0x4 | ||
|
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| #define AUTO_UPDATE_MODE_REGION_MODE 0 | ||
| #define AUTO_UPDATE_MODE_AUTOMATIC_MODE 1 | ||
|
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| #define UPDATE_SCHEME_SNAPSHOT 0 | ||
| #define UPDATE_SCHEME_QUEUE 1 | ||
| #define UPDATE_SCHEME_QUEUE_AND_MERGE 2 | ||
|
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| #define UPDATE_MODE_PARTIAL 0x0 | ||
| #define UPDATE_MODE_FULL 0x1 | ||
|
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| // Findings courtesy of libremarkable | ||
| /* | ||
| // c.f., https://github.com/canselcik/libremarkable/blob/67ff7ea3926319a6d33a216a2b8c1f679916aa3c/src/framebuffer/common.rs#L338 | ||
| // NOTE: Those constant names seem to be inspired from https://github.com/fread-ink/inkwave | ||
| // (which was itself built around Kindle waveforms, which is why some of those names will look familiar if you check mxcfb-kindle.h ;)). | ||
| // NOTE: Also added relevant enum names from libqsgepaper.a (it's part of the official SDK) as inline comments (AFAICT, here be dragons!). | ||
| // NOTE: Speaking of inkwave, it seems to confirm that the firmware blob only ships 5 different waveform modes, so I'd trust EPFrameBuffer::WaveformMode ;). | ||
| // Still, it was designed with Kindle firmware blobs in mind, so, take that with a grain of salt nonetheless. | ||
| #define WAVEFORM_MODE_INIT 0 // EPFrameBuffer::WaveformMode::Initialize EPFrameBuffer::Waveform::INIT | ||
| #define WAVEFORM_MODE_DU 1 // EPFrameBuffer::WaveformMode::Mono EPFrameBuffer::Waveform::DU | ||
| #define WAVEFORM_MODE_GC16 2 // EPFrameBuffer::WaveformMode::HighQualityGrayscale EPFrameBuffer::Waveform::GC16 | ||
| #define WAVEFORM_MODE_GC16_FAST 3 // EPFrameBuffer::WaveformMode::Grayscale EPFrameBuffer::Waveform::GL16 | ||
| #define WAVEFORM_MODE_GL16_FAST 6 // EPFrameBuffer::Waveform::A2 | ||
| #define WAVEFORM_MODE_DU4 7 // EPFrameBuffer::Waveform::DU4 | ||
| #define WAVEFORM_MODE_REAGL 8 // EPFrameBuffer::WaveformMode::Highlight EPFrameBuffer::Waveform::UNKNOWN | ||
| #define WAVEFORM_MODE_REAGLD 9 // EPFrameBuffer::Waveform::INIT2 | ||
| #define WAVEFORM_MODE_GL4 0xA | ||
| #define WAVEFORM_MODE_GL16_INV 0xB | ||
| // NOTE: Those leftover constants from the upstream kernel sources are *extremely* confusingly named. | ||
| // libremarkable tests & comments hinted that this one was actually A2, which we've also confirmed. | ||
| #define WAVEFORM_MODE_GLR16 4 // EPFrameBuffer::Waveform::GLR16 | ||
| #define WAVEFORM_MODE_A2 WAVEFORM_MODE_GLR16 | ||
| // NOTE: Which would actually make this GL16 (purely by virtue of GL16 *usually* being A2 + 1)? | ||
| // Practical tests have yielded weird results, but with a weirdness consistent with GL16_FAST at least ^^. | ||
| #define WAVEFORM_MODE_GLD16 5 // EPFrameBuffer::Waveform::GLD16 | ||
| #define WAVEFORM_MODE_GL16 WAVEFORM_MODE_GLD16 | ||
| // NOTE: That one can't be bogus, because it's actually used by the driver to check for obviously invalid modes ;). | ||
| // Also, it's consistent with other platforms. | ||
| // Speaking of other platforms, usually, GLR16 == REAGL & GLD16 == REAGLD ;). | ||
| #define WAVEFORM_MODE_AUTO 257 | ||
| */ | ||
|
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||
| // Let's honor <epframebuffer.h> instead, it's slightly less confusing ;). | ||
| // c.f., https://github.com/NiLuJe/FBInk/pull/41#issuecomment-579579351 | ||
| #define WAVEFORM_MODE_INIT 0 | ||
| #define WAVEFORM_MODE_DU 1 | ||
| #define WAVEFORM_MODE_GC16 2 | ||
| #define WAVEFORM_MODE_GL16 3 | ||
| // NOTE: Here be dragons! | ||
| // xochitl itself will never use any of those, and despite what's detailed in <epframebuffer.h>, | ||
| // testing on production devices reveals that no-one really should either, actually ;). | ||
| // c.f., https://github.com/NiLuJe/FBInk/pull/41#issuecomment-580926264 | ||
| /* | ||
| #define WAVEFORM_MODE_GLR16 4 | ||
| #define WAVEFORM_MODE_GLD16 5 | ||
| #define WAVEFORM_MODE_A2 6 | ||
| #define WAVEFORM_MODE_DU4 7 | ||
| #define WAVEFORM_MODE_UNKNOWN 8 | ||
| #define WAVEFORM_MODE_INIT2 9 | ||
| */ | ||
| // NOTE: The only thing we can salvage is what's quite likely actually A2, according both to testing, | ||
| // and poking at the binary firmware blob. | ||
| #define WAVEFORM_MODE_A2 4 | ||
|
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| #define WAVEFORM_MODE_AUTO 257 | ||
|
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| #define TEMP_USE_AMBIENT 0x1000 | ||
|
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| // Again, pilfered from libremarkable ;). | ||
| // In practice, only appears to be used in conjunction w/ DU | ||
| // (c.f., https://github.com/NiLuJe/FBInk/pull/41#issuecomment-579424194) | ||
| #define TEMP_USE_REMARKABLE 0x0018 | ||
|
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||
| #define EPDC_FLAG_ENABLE_INVERSION 0x01 | ||
| #define EPDC_FLAG_FORCE_MONOCHROME 0x02 | ||
| #define EPDC_FLAG_USE_CMAP 0x04 | ||
| #define EPDC_FLAG_USE_ALT_BUFFER 0x100 | ||
| #define EPDC_FLAG_TEST_COLLISION 0x200 | ||
| #define EPDC_FLAG_GROUP_UPDATE 0x400 | ||
| #define EPDC_FLAG_USE_DITHERING_Y1 0x2000 | ||
| #define EPDC_FLAG_USE_DITHERING_Y4 0x4000 | ||
| #define EPDC_FLAG_USE_REGAL 0x8000 | ||
|
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||
| enum mxcfb_dithering_mode { | ||
| EPDC_FLAG_USE_DITHERING_PASSTHROUGH = 0x0, | ||
| EPDC_FLAG_USE_DITHERING_FLOYD_STEINBERG, | ||
| EPDC_FLAG_USE_DITHERING_ATKINSON, | ||
| EPDC_FLAG_USE_DITHERING_ORDERED, | ||
| EPDC_FLAG_USE_DITHERING_QUANT_ONLY, | ||
| EPDC_FLAG_USE_DITHERING_MAX, | ||
| }; | ||
|
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||
| #define FB_POWERDOWN_DISABLE -1 | ||
| #define FB_TEMP_AUTO_UPDATE_DISABLE -1 | ||
|
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| struct mxcfb_alt_buffer_data { | ||
| __u32 phys_addr; | ||
| __u32 width; /* width of entire buffer */ | ||
| __u32 height; /* height of entire buffer */ | ||
| struct mxcfb_rect alt_update_region; /* region within buffer to update */ | ||
| }; | ||
|
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| struct mxcfb_update_data { | ||
| struct mxcfb_rect update_region; | ||
| __u32 waveform_mode; | ||
| __u32 update_mode; | ||
| __u32 update_marker; | ||
| int temp; | ||
| unsigned int flags; | ||
| int dither_mode; | ||
| int quant_bit; | ||
| struct mxcfb_alt_buffer_data alt_buffer_data; | ||
| }; | ||
|
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| struct mxcfb_update_marker_data { | ||
| __u32 update_marker; | ||
| __u32 collision_test; | ||
| }; | ||
|
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| /* | ||
| * Structure used to define waveform modes for driver | ||
| * Needed for driver to perform auto-waveform selection | ||
| */ | ||
| struct mxcfb_waveform_modes { | ||
| int mode_init; | ||
| int mode_du; | ||
| int mode_gc4; | ||
| int mode_gc8; | ||
| int mode_gc16; | ||
| int mode_gc32; | ||
| }; | ||
|
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| /* | ||
| * Structure used to define a 5*3 matrix of parameters for | ||
| * setting IPU DP CSC module related to this framebuffer. | ||
| */ | ||
| struct mxcfb_csc_matrix { | ||
| int param[5][3]; | ||
| }; | ||
|
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| #define MXCFB_WAIT_FOR_VSYNC _IOW('F', 0x20, u_int32_t) | ||
| #define MXCFB_SET_GBL_ALPHA _IOW('F', 0x21, struct mxcfb_gbl_alpha) | ||
| #define MXCFB_SET_CLR_KEY _IOW('F', 0x22, struct mxcfb_color_key) | ||
| #define MXCFB_SET_OVERLAY_POS _IOWR('F', 0x24, struct mxcfb_pos) | ||
| #define MXCFB_GET_FB_IPU_CHAN _IOR('F', 0x25, u_int32_t) | ||
| #define MXCFB_SET_LOC_ALPHA _IOWR('F', 0x26, struct mxcfb_loc_alpha) | ||
| #define MXCFB_SET_LOC_ALP_BUF _IOW('F', 0x27, unsigned long) | ||
| #define MXCFB_SET_GAMMA _IOW('F', 0x28, struct mxcfb_gamma) | ||
| #define MXCFB_GET_FB_IPU_DI _IOR('F', 0x29, u_int32_t) | ||
| #define MXCFB_GET_DIFMT _IOR('F', 0x2A, u_int32_t) | ||
| #define MXCFB_GET_FB_BLANK _IOR('F', 0x2B, u_int32_t) | ||
| #define MXCFB_SET_DIFMT _IOW('F', 0x2C, u_int32_t) | ||
| #define MXCFB_CSC_UPDATE _IOW('F', 0x2D, struct mxcfb_csc_matrix) | ||
| #define MXCFB_SET_GPU_SPLIT_FMT _IOW('F', 0x2F, struct mxcfb_gpu_split_fmt) | ||
| #define MXCFB_SET_PREFETCH _IOW('F', 0x30, int) | ||
| #define MXCFB_GET_PREFETCH _IOR('F', 0x31, int) | ||
|
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| /* IOCTLs for E-ink panel updates */ | ||
| #define MXCFB_SET_WAVEFORM_MODES _IOW('F', 0x2B, struct mxcfb_waveform_modes) | ||
| #define MXCFB_SET_TEMPERATURE _IOW('F', 0x2C, int32_t) | ||
| #define MXCFB_SET_AUTO_UPDATE_MODE _IOW('F', 0x2D, __u32) | ||
| #define MXCFB_SEND_UPDATE _IOW('F', 0x2E, struct mxcfb_update_data) | ||
| #define MXCFB_WAIT_FOR_UPDATE_COMPLETE _IOWR('F', 0x2F, struct mxcfb_update_marker_data) | ||
| #define MXCFB_SET_PWRDOWN_DELAY _IOW('F', 0x30, int32_t) | ||
| #define MXCFB_GET_PWRDOWN_DELAY _IOR('F', 0x31, int32_t) | ||
| #define MXCFB_SET_UPDATE_SCHEME _IOW('F', 0x32, __u32) | ||
| #define MXCFB_GET_WORK_BUFFER _IOWR('F', 0x34, unsigned long) | ||
| #define MXCFB_SET_TEMP_AUTO_UPDATE_PERIOD _IOW('F', 0x36, int32_t) | ||
| #define MXCFB_DISABLE_EPDC_ACCESS _IO('F', 0x35) | ||
| #define MXCFB_ENABLE_EPDC_ACCESS _IO('F', 0x36) | ||
| #endif |
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