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authorLibreboot Contributor <contributor@libreboot.org>2020-04-02 20:59:23 +0200
committerLibreboot Contributor <contributor@libreboot.org>2020-04-02 20:59:43 +0200
commita2f4bef6de0e1f5770d489e861c78890f81229c1 (patch)
treebc74ce87d44cfcae1eecff62c0fbf6a97b1812fc /i18n/fr_FR/resources/utilities/i945-pwm/i945-pwm.c
parentc6cb6cf4769cd535eee9abfd41fbf717a51d067c (diff)
downloadlibrebootfr-a2f4bef6de0e1f5770d489e861c78890f81229c1.tar.gz
librebootfr-a2f4bef6de0e1f5770d489e861c78890f81229c1.zip
link to french version of gplv3 at the top of i18n/fr_FR/COPYING . Also, we remove files that we haven't translated yet, it weights a lot.
Diffstat (limited to 'i18n/fr_FR/resources/utilities/i945-pwm/i945-pwm.c')
-rw-r--r--i18n/fr_FR/resources/utilities/i945-pwm/i945-pwm.c163
1 files changed, 0 insertions, 163 deletions
diff --git a/i18n/fr_FR/resources/utilities/i945-pwm/i945-pwm.c b/i18n/fr_FR/resources/utilities/i945-pwm/i945-pwm.c
deleted file mode 100644
index e3dc5742..00000000
--- a/i18n/fr_FR/resources/utilities/i945-pwm/i945-pwm.c
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
- Copyright (C) 2014 Michał Masłowski <mtjm@mtjm.eu>
-
- 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 3 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, see <http://www.gnu.org/licenses/>.
-*/
-
-/* Try several backlight PWM frequencies and duty cycles to see which
- expose the noise on X60 with coreboot.
-*/
-
-#include <assert.h>
-#include <fcntl.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/mman.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <pci/pci.h>
-
-static struct pci_access *pacc;
-static uint32_t *map;
-static int fd;
-
-#define REGISTER 0x61254
-
-static void
-init (void)
-{
- fd = -1;
- /* Find the device. */
- struct pci_dev *dev;
- pacc = pci_alloc ();
- pacc->writeable = 1;
- pci_init (pacc);
- pci_scan_bus (pacc);
- for (dev = pacc->devices; dev != NULL; dev = dev->next)
- {
- pci_fill_info (dev, PCI_FILL_IDENT | PCI_FILL_BASES);
- if (dev->vendor_id != 0x8086 || dev->device_id != 0x27a2)
- continue;
- break;
- }
- if (dev == NULL)
- {
- fprintf (stderr, "Device not found.\n");
- goto fail;
- }
- /* Map a part of its MMIO. */
- fd = open ("/dev/mem", O_RDWR);
- if (fd == -1)
- {
- fprintf (stderr, "Cannot open memory. Are you root?\n");
- goto fail;
- }
- map = mmap (NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, fd, dev->base_addr[0] + (REGISTER & (~4095)));
- if (map != MAP_FAILED)
- return;
- else
- perror ("mmap failed");
- fail:
- if (pacc != NULL)
- pci_cleanup (pacc);
- if (fd != -1)
- close (fd);
- exit (1);
-}
-
-static void
-set_pwm (uint16_t freq, uint16_t duty)
-{
- assert (duty <= freq);
- map[((REGISTER - 4) & 4095) >> 2] = 0x80000000;
- map[(REGISTER & 4095) >> 2] = ((freq | 1) << 16) | duty;
-}
-
-int
-main (void)
-{
- init ();
- int exponent = 8;
- int diff = 0;
- int divisor = 2;
- uint16_t freq = 0x61;
- uint16_t duties[] = {
-#if 1
- // i945
- 0xf,
- 0x13,
- 0x19,
- 0x1f,
- 0x23,
- 0x29,
- 0x2f,
- 0x35,
- 0x39,
- 0x3f,
- 0x45,
- 0x4b,
- 0x4f,
- 0x55,
- 0x5b,
- 0x61
-#else
- // gm45
- 0x2,
- 0x4,
- 0x5,
- 0x7,
- 0x9,
- 0xb,
- 0xd,
- 0x11,
- 0x14,
- 0x17,
- 0x1c,
- 0x20,
- 0x27,
- 0x31,
- 0x41,
- 0x61,
-#endif
- };
-#if 1
- for (unsigned int di = 0; di < sizeof (duties) / sizeof (duties[0]); di++)
- {
- uint16_t duty = duties[di];
-#else
- for (uint16_t duty = 0; duty < 0x61; duty++)
- {
-#endif
-#if 0
- }
-#endif
- uint16_t pwm_freq = (freq + diff) << exponent;
- pwm_freq += (pwm_freq >> divisor);
- //pwm_freq |= 0x33;
- uint16_t pwm_duty = (duty + diff) << exponent;
- pwm_duty += (pwm_duty >> divisor);
- //pwm_duty |= 0x32;
- set_pwm (pwm_freq, pwm_duty);
- sleep (1);
- }
- if (pacc != NULL)
- pci_cleanup (pacc);
- if (map != NULL)
- munmap (map, 4096);
- if (fd != -1)
- close (fd);
- return 0;
-}