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Diffstat (limited to 'firmware/target/hosted/sonynwz/system-nwz.c')
-rw-r--r--firmware/target/hosted/sonynwz/system-nwz.c204
1 files changed, 204 insertions, 0 deletions
diff --git a/firmware/target/hosted/sonynwz/system-nwz.c b/firmware/target/hosted/sonynwz/system-nwz.c
new file mode 100644
index 0000000000..c804c5ab66
--- /dev/null
+++ b/firmware/target/hosted/sonynwz/system-nwz.c
@@ -0,0 +1,204 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ *
+ * Copyright (C) 2016 Amaury Pouly
+ *
+ * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <ucontext.h>
+#include <string.h>
+#include "system.h"
+#include "lcd.h"
+#include "font.h"
+#include "logf.h"
+#include "system.h"
+#include "backlight-target.h"
+#include "button.h"
+#include "adc.h"
+#include "power.h"
+#include "power-nwz.h"
+#include <backtrace.h>
+#include <stdio.h>
+
+static const char **kern_mod_list;
+
+void power_off(void)
+{
+ exit(0);
+}
+
+static void compute_kern_mod_list(void)
+{
+ /* create empty list */
+ kern_mod_list = malloc(sizeof(const char **));
+ kern_mod_list[0] = NULL;
+ /* read from proc file system */
+ FILE *f = fopen("/proc/modules", "r");
+ if(f == NULL)
+ {
+ printf("Cannot open /proc/modules");
+ return;
+ }
+ for(int i = 0;; i++)
+ {
+ /* the last entry of the list points to NULL so getline() will allocate
+ * some memory */
+ size_t n;
+ if(getline((char **)&kern_mod_list[i], &n, f) < 0)
+ {
+ /* make sure last entry is NULL and stop */
+ kern_mod_list[i] = NULL;
+ break;
+ }
+ /* grow array */
+ kern_mod_list = realloc(kern_mod_list, (i + 2) * sizeof(const char **));
+ /* and fill last entry with NULL */
+ kern_mod_list[i + 1] = NULL;
+ /* parse line to only keep module name */
+ char *p = strchr(kern_mod_list[i], ' ');
+ if(p != NULL)
+ *p = 0; /* stop at first blank */
+ }
+ fclose(f);
+}
+
+static void print_kern_mod_list(void)
+{
+ printf("Kernel modules:\n");
+ const char **p = kern_mod_list;
+ while(*p)
+ printf(" %s\n", *p++);
+}
+
+/* to make thread-internal.h happy */
+uintptr_t *stackbegin;
+uintptr_t *stackend;
+
+static void nwz_sig_handler(int sig, siginfo_t *siginfo, void *context)
+{
+ /* safe guard variable - we call backtrace() only on first
+ * UIE call. This prevent endless loop if backtrace() touches
+ * memory regions which cause abort
+ */
+ static bool triggered = false;
+
+ lcd_set_backdrop(NULL);
+ lcd_set_drawmode(DRMODE_SOLID);
+ lcd_set_foreground(LCD_BLACK);
+ lcd_set_background(LCD_WHITE);
+ unsigned line = 0;
+
+ lcd_setfont(FONT_SYSFIXED);
+ lcd_set_viewport(NULL);
+ lcd_clear_display();
+
+ /* get context info */
+ ucontext_t *uc = (ucontext_t *)context;
+ unsigned long pc = uc->uc_mcontext.arm_pc;
+ unsigned long sp = uc->uc_mcontext.arm_sp;
+
+ lcd_putsf(0, line++, "%s at %08x", strsignal(sig), pc);
+
+ if(sig == SIGILL || sig == SIGFPE || sig == SIGSEGV || sig == SIGBUS || sig == SIGTRAP)
+ lcd_putsf(0, line++, "address 0x%08x", siginfo->si_addr);
+
+ if(!triggered)
+ {
+ triggered = true;
+ rb_backtrace(pc, sp, &line);
+ }
+
+#ifdef ROCKBOX_HAS_LOGF
+ lcd_putsf(0, line++, "logf:");
+ logf_panic_dump(&line);
+#endif
+
+ lcd_update();
+
+ system_exception_wait(); /* If this returns, try to reboot */
+ system_reboot();
+ while (1); /* halt */
+}
+
+void system_init(void)
+{
+ int *s;
+ /* fake stack, to make thread-internal.h happy */
+ stackbegin = stackend = (uintptr_t*)&s;
+ /* catch some signals for easier debugging */
+ struct sigaction sa;
+ sigfillset(&sa.sa_mask);
+ sa.sa_flags = SA_SIGINFO;
+ sa.sa_sigaction = &nwz_sig_handler;
+ sigaction(SIGILL, &sa, NULL);
+ sigaction(SIGABRT, &sa, NULL);
+ sigaction(SIGFPE, &sa, NULL);
+ sigaction(SIGSEGV, &sa, NULL);
+ sigaction(SIGPIPE, &sa, NULL);
+ sigaction(SIGTERM, &sa, NULL);
+ sigaction(SIGBUS, &sa, NULL);
+ sigaction(SIGTERM, &sa, NULL);
+ compute_kern_mod_list();
+ print_kern_mod_list();
+ /* some init not done on hosted targets */
+ adc_init();
+ power_init();
+}
+
+
+void system_reboot(void)
+{
+ power_off();
+}
+
+void system_exception_wait(void)
+{
+ backlight_hw_on();
+ backlight_hw_brightness(DEFAULT_BRIGHTNESS_SETTING);
+ /* wait until button press and release */
+ while(button_read_device() != 0) {}
+ while(button_read_device() == 0) {}
+ while(button_read_device() != 0) {}
+ while(button_read_device() == 0) {}
+}
+
+int hostfs_init(void)
+{
+ return 0;
+}
+
+int hostfs_flush(void)
+{
+ sync();
+ return 0;
+}
+
+const char **nwz_get_kernel_module_list(void)
+{
+ return kern_mod_list;
+}
+
+bool nwz_is_kernel_module_loaded(const char *name)
+{
+ const char **p = kern_mod_list;
+ while(*p)
+ if(strcmp(*p++, name) == 0)
+ return true;
+ return false;
+}