X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=libpicofe.git;a=blobdiff_plain;f=gp2x%2Fsoc_pollux.c;h=e59a5611e8b78cdc7704b0921c6f8ed28c009851;hp=a773ae19216800ac509881dd7a5d7bb9849f5e49;hb=7ceadd9993ea84078e9d74d79215419e06496f90;hpb=c54d04fd84f59c60c6ecdbd2502fbda5de735b4b diff --git a/gp2x/soc_pollux.c b/gp2x/soc_pollux.c index a773ae1..e59a561 100644 --- a/gp2x/soc_pollux.c +++ b/gp2x/soc_pollux.c @@ -19,237 +19,88 @@ #include #include #include -#include #include #include #include #include #include #include -#include #include #include "soc.h" #include "plat_gp2x.h" #include "../plat.h" -volatile unsigned short *memregs; -volatile unsigned int *memregl; -int memdev = -1; -int gp2x_dev_id; - static int battdev = -1, mixerdev = -1; static int cpu_clock_allowed; static unsigned int saved_video_regs[2][6]; +static unsigned int timer_drift; // count per real second #ifndef ARRAY_SIZE #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) #endif -// TODO FIXME: merge -#if 0 -extern void *gp2x_screens[4]; - -#define fb_buf_count 4 -static unsigned int fb_paddr[fb_buf_count]; -static int fb_work_buf; -static int fbdev = -1; - -static char cpuclk_was_changed = 0; -static unsigned short memtimex_old[2]; -static unsigned int pllsetreg0_old; -static unsigned int timer_drift; // count per real second -static int last_pal_setting = 0; - - -/* misc */ -static void pollux_set_fromenv(const char *env_var) -{ - const char *set_string; - set_string = getenv(env_var); - if (set_string) - pollux_set(memregs, set_string); - else - printf("env var %s not defined.\n", env_var); -} - -/* video stuff */ -static void pollux_video_flip(int buf_count) -{ - memregl[0x406C>>2] = fb_paddr[fb_work_buf]; - memregl[0x4058>>2] |= 0x10; - fb_work_buf++; - if (fb_work_buf >= buf_count) - fb_work_buf = 0; - g_screen_ptr = gp2x_screens[fb_work_buf]; -} - -static void gp2x_video_flip_(void) -{ - pollux_video_flip(fb_buf_count); -} - -/* doulblebuffered flip */ -static void gp2x_video_flip2_(void) -{ - pollux_video_flip(2); -} - -static void gp2x_video_changemode_ll_(int bpp) +/* note: both PLLs are programmed the same way, + * the databook incorrectly states that PLL1 differs */ +static int decode_pll(unsigned int reg) { - static int prev_bpp = 0; - int code = 0, bytes = 2; - int rot_cmd[2] = { 0, 0 }; - unsigned int r; - char buff[32]; - int ret; - - if (bpp == prev_bpp) - return; - prev_bpp = bpp; - - printf("changemode: %dbpp rot=%d\n", abs(bpp), bpp < 0); - - /* negative bpp means rotated mode */ - rot_cmd[0] = (bpp < 0) ? 6 : 5; - ret = ioctl(fbdev, _IOW('D', 90, int[2]), rot_cmd); - if (ret < 0) - perror("rot ioctl failed"); - memregl[0x4004>>2] = (bpp < 0) ? 0x013f00ef : 0x00ef013f; - memregl[0x4000>>2] |= 1 << 3; - - /* the above ioctl resets LCD timings, so set them here */ - snprintf(buff, sizeof(buff), "POLLUX_LCD_TIMINGS_%s", last_pal_setting ? "PAL" : "NTSC"); - pollux_set_fromenv(buff); - - switch (abs(bpp)) - { - case 8: - code = 0x443a; - bytes = 1; - break; - - case 15: - case 16: - code = 0x4432; - bytes = 2; - break; - - default: - printf("unhandled bpp request: %d\n", abs(bpp)); - return; - } + long long v; + int p, m, s; - memregl[0x405c>>2] = bytes; - memregl[0x4060>>2] = bytes * (bpp < 0 ? 240 : 320); + p = (reg >> 18) & 0x3f; + m = (reg >> 8) & 0x3ff; + s = reg & 0xff; - r = memregl[0x4058>>2]; - r = (r & 0xffff) | (code << 16) | 0x10; - memregl[0x4058>>2] = r; -} + if (p == 0) + p = 1; -static void gp2x_video_setpalette_(int *pal, int len) -{ - /* pollux palette is 16bpp only.. */ - int i; - for (i = 0; i < len; i++) - { - int c = pal[i]; - c = ((c >> 8) & 0xf800) | ((c >> 5) & 0x07c0) | ((c >> 3) & 0x001f); - memregl[0x4070>>2] = (i << 24) | c; - } + v = 27000000; // master clock + v = v * m / (p << s); + return v; } -static void gp2x_video_RGB_setscaling_(int ln_offs, int W, int H) -{ - /* maybe a job for 3d hardware? */ -} +#define TIMER_BASE3 0x1980 +#define TIMER_REG(x) memregl[(TIMER_BASE3 + x) >> 2] -static void gp2x_video_wait_vsync_(void) +static unsigned int gp2x_get_ticks_us_(void) { - while (!(memregl[0x308c>>2] & (1 << 10))) - spend_cycles(128); - memregl[0x308c>>2] |= 1 << 10; + TIMER_REG(0x08) = 0x4b; /* run timer, latch value */ + return TIMER_REG(0); } -/* CPU clock */ -static void gp2x_set_cpuclk_(unsigned int mhz) +static unsigned int gp2x_get_ticks_ms_(void) { - char buff[24]; - snprintf(buff, sizeof(buff), "cpuclk=%u", mhz); - pollux_set(memregs, buff); - - cpuclk_was_changed = 1; + /* approximate /= 1000 */ + unsigned long long v64; + v64 = (unsigned long long)gp2x_get_ticks_us_() * 4294968; + return v64 >> 32; } -/* RAM timings */ -static void set_ram_timings_(void) +static void timer_cleanup(void) { - pollux_set_fromenv("POLLUX_RAM_TIMINGS"); + TIMER_REG(0x40) = 0x0c; /* be sure clocks are on */ + TIMER_REG(0x08) = 0x23; /* stop the timer, clear irq in case it's pending */ + TIMER_REG(0x00) = 0; /* clear counter */ + TIMER_REG(0x40) = 0; /* clocks off */ + TIMER_REG(0x44) = 0; /* dividers back to default */ } -static void unset_ram_timings_(void) +static void save_multiple_regs(unsigned int *dest, int base, int count) { + const volatile unsigned int *regs = memregl + base / 4; int i; - memregs[0x14802>>1] = memtimex_old[0]; - memregs[0x14804>>1] = memtimex_old[1] | 0x8000; - - for (i = 0; i < 0x100000; i++) - if (!(memregs[0x14804>>1] & 0x8000)) - break; - - printf("RAM timings reset to startup values.\n"); -} - -/* LCD refresh */ -static void set_lcd_custom_rate_(int is_pal) -{ - /* just remember PAL/NTSC. We always set timings in _changemode_ll() */ - last_pal_setting = is_pal; -} - -static void unset_lcd_custom_rate_(void) -{ -} - -static void set_lcd_gamma_(int g100, int A_SNs_curve) -{ - /* hm, the LCD possibly can do it (but not POLLUX) */ -} - -static int gp2x_read_battery_(void) -{ - unsigned short magic_val = 0; - - if (battdev < 0) - return -1; - if (read(battdev, &magic_val, sizeof(magic_val)) != sizeof(magic_val)) - return -1; - switch (magic_val) { - default: - case 1: return 100; - case 2: return 66; - case 3: return 40; - case 4: return 0; - } + for (i = 0; i < count; i++) + dest[i] = regs[i]; } -#define TIMER_BASE3 0x1980 -#define TIMER_REG(x) memregl[(TIMER_BASE3 + x) >> 2] - -static unsigned int gp2x_get_ticks_us_(void) +static void restore_multiple_regs(int base, const unsigned int *src, int count) { - TIMER_REG(0x08) = 0x4b; /* run timer, latch value */ - return TIMER_REG(0); -} + volatile unsigned int *regs = memregl + base / 4; + int i; -static unsigned int gp2x_get_ticks_ms_(void) -{ - /* approximate /= 1000 */ - unsigned long long v64; - v64 = (unsigned long long)gp2x_get_ticks_us_() * 4294968; - return v64 >> 32; + for (i = 0; i < count; i++) + regs[i] = src[i]; } int pollux_get_real_snd_rate(int req_rate) @@ -284,192 +135,6 @@ int pollux_get_real_snd_rate(int req_rate) return rate; } -void pollux_init(void) -{ - struct fb_fix_screeninfo fbfix; - int i, ret, rate, timer_div; - - memdev = open("/dev/mem", O_RDWR); - if (memdev == -1) { - perror("open(/dev/mem) failed"); - exit(1); - } - - memregs = mmap(0, 0x20000, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0xc0000000); - if (memregs == MAP_FAILED) { - perror("mmap(memregs) failed"); - exit(1); - } - memregl = (volatile void *)memregs; - - fbdev = open("/dev/fb0", O_RDWR); - if (fbdev < 0) { - perror("can't open fbdev"); - exit(1); - } - - ret = ioctl(fbdev, FBIOGET_FSCREENINFO, &fbfix); - if (ret == -1) { - perror("ioctl(fbdev) failed"); - exit(1); - } - - printf("framebuffer: \"%s\" @ %08lx\n", fbfix.id, fbfix.smem_start); - fb_paddr[0] = fbfix.smem_start; - - gp2x_screens[0] = mmap(0, 320*240*2*fb_buf_count, PROT_READ|PROT_WRITE, - MAP_SHARED, memdev, fb_paddr[0]); - if (gp2x_screens[0] == MAP_FAILED) - { - perror("mmap(gp2x_screens) failed"); - exit(1); - } - memset(gp2x_screens[0], 0, 320*240*2*fb_buf_count); - - printf(" %p -> %08x\n", gp2x_screens[0], fb_paddr[0]); - for (i = 1; i < fb_buf_count; i++) - { - fb_paddr[i] = fb_paddr[i-1] + 320*240*2; - gp2x_screens[i] = (char *)gp2x_screens[i-1] + 320*240*2; - printf(" %p -> %08x\n", gp2x_screens[i], fb_paddr[i]); - } - fb_work_buf = 0; - g_screen_ptr = gp2x_screens[0]; - - battdev = open("/dev/pollux_batt", O_RDONLY); - if (battdev < 0) - perror("Warning: could't open pollux_batt"); - - /* find what PLL1 runs at, for the timer */ - rate = decode_pll(memregl[0xf008>>2]); - printf("PLL1 @ %dHz\n", rate); - - /* setup timer */ - timer_div = (rate + 500000) / 1000000; - if (1 <= timer_div && timer_div <= 256) { - timer_drift = (rate - (timer_div * 1000000)) / timer_div; - - if (TIMER_REG(0x08) & 8) { - fprintf(stderr, "warning: timer in use, overriding!\n"); - timer_cleanup(); - } - - TIMER_REG(0x44) = ((timer_div - 1) << 4) | 2; /* using PLL1, divide by it's rate */ - TIMER_REG(0x40) = 0x0c; /* clocks on */ - TIMER_REG(0x08) = 0x6b; /* run timer, clear irq, latch value */ - - gp2x_get_ticks_ms = gp2x_get_ticks_ms_; - gp2x_get_ticks_us = gp2x_get_ticks_us_; - } - else { - fprintf(stderr, "warning: could not make use of timer\n"); - - // those functions are actually not good at all on Wiz kernel - gp2x_get_ticks_ms = plat_get_ticks_ms_good; - gp2x_get_ticks_us = plat_get_ticks_us_good; - } - - pllsetreg0_old = memregl[0xf004>>2]; - memtimex_old[0] = memregs[0x14802>>1]; - memtimex_old[1] = memregs[0x14804>>1]; - - gp2x_video_flip = gp2x_video_flip_; - gp2x_video_flip2 = gp2x_video_flip2_; - gp2x_video_changemode_ll = gp2x_video_changemode_ll_; - gp2x_video_setpalette = gp2x_video_setpalette_; - gp2x_video_RGB_setscaling = gp2x_video_RGB_setscaling_; - gp2x_video_wait_vsync = gp2x_video_wait_vsync_; - - /* some firmwares have sys clk on PLL0, we can't adjust CPU clock - * by reprogramming the PLL0 then, as it overclocks system bus */ - if ((memregl[0xf000>>2] & 0x03000030) == 0x01000000) - gp2x_set_cpuclk = gp2x_set_cpuclk_; - else { - fprintf(stderr, "unexpected PLL config (%08x), overclocking disabled\n", - memregl[0xf000>>2]); - gp2x_set_cpuclk = NULL; - } - - set_lcd_custom_rate = set_lcd_custom_rate_; - unset_lcd_custom_rate = unset_lcd_custom_rate_; - set_lcd_gamma = set_lcd_gamma_; - - set_ram_timings = set_ram_timings_; - unset_ram_timings = unset_ram_timings_; - gp2x_read_battery = gp2x_read_battery_; -} - -void pollux_finish(void) -{ - /* switch to default fb mem, turn portrait off */ - memregl[0x406C>>2] = fb_paddr[0]; - memregl[0x4058>>2] |= 0x10; - close(fbdev); - - gp2x_video_changemode_ll_(16); - unset_ram_timings_(); - if (cpuclk_was_changed) { - memregl[0xf004>>2] = pllsetreg0_old; - memregl[0xf07c>>2] |= 0x8000; - } - timer_cleanup(); - - munmap((void *)memregs, 0x20000); - close(memdev); - if (battdev >= 0) - close(battdev); -} -#endif - -/* note: both PLLs are programmed the same way, - * the databook incorrectly states that PLL1 differs */ -static int decode_pll(unsigned int reg) -{ - long long v; - int p, m, s; - - p = (reg >> 18) & 0x3f; - m = (reg >> 8) & 0x3ff; - s = reg & 0xff; - - if (p == 0) - p = 1; - - v = 27000000; // master clock - v = v * m / (p << s); - return v; -} - -#define TIMER_BASE3 0x1980 -#define TIMER_REG(x) memregl[(TIMER_BASE3 + x) >> 2] - -static void timer_cleanup(void) -{ - TIMER_REG(0x40) = 0x0c; /* be sure clocks are on */ - TIMER_REG(0x08) = 0x23; /* stop the timer, clear irq in case it's pending */ - TIMER_REG(0x00) = 0; /* clear counter */ - TIMER_REG(0x40) = 0; /* clocks off */ - TIMER_REG(0x44) = 0; /* dividers back to default */ -} - -static void save_multiple_regs(unsigned int *dest, int base, int count) -{ - const volatile unsigned int *regs = memregl + base / 4; - int i; - - for (i = 0; i < count; i++) - dest[i] = regs[i]; -} - -static void restore_multiple_regs(int base, const unsigned int *src, int count) -{ - volatile unsigned int *regs = memregl + base / 4; - int i; - - for (i = 0; i < count; i++) - regs[i] = src[i]; -} - /* newer API */ static int pollux_cpu_clock_get(void) { @@ -527,44 +192,34 @@ static int pollux_bat_capacity_get(void) } } -static int step_volume(int is_up) +static int step_volume(int *volume, int diff) { - static int volume = 50; int ret, val; if (mixerdev < 0) return -1; - if (is_up) { - volume += 5; - if (volume > 255) volume = 255; - } - else { - volume -= 5; - if (volume < 0) volume = 0; - } - val = volume; + *volume += diff; + if (*volume > 255) + *volume = 255; + else if (*volume < 0) + *volume = 0; + + val = *volume; val |= val << 8; ret = ioctl(mixerdev, SOUND_MIXER_WRITE_PCM, &val); - if (ret == -1) + if (ret == -1) { perror("WRITE_PCM"); + return ret; + } - return ret; + return 0; } -struct plat_target plat_target = { - pollux_cpu_clock_get, - pollux_cpu_clock_set, - pollux_bat_capacity_get, - - .step_volume = step_volume, -}; - -int plat_target_init(void) +void pollux_init(void) { int rate, timer_div, timer_div2; - FILE *f; memdev = open("/dev/mem", O_RDWR); if (memdev == -1) { @@ -611,45 +266,42 @@ int plat_target_init(void) fprintf(stderr, "warning: timer in use, overriding!\n"); timer_cleanup(); } - if (timer_rate != 1000000) - fprintf(stderr, "warning: timer drift %d us\n", timer_rate - 1000000); + timer_drift = timer_rate - 1000000; + if (timer_drift != 0) + fprintf(stderr, "warning: timer drift %d us\n", + timer_drift); timer_div2 = (timer_div2 + 3) & 3; TIMER_REG(0x44) = ((timer_div - 1) << 4) | 2; /* using PLL1 */ TIMER_REG(0x40) = 0x0c; /* clocks on */ TIMER_REG(0x08) = 0x68 | timer_div2; /* run timer, clear irq, latch value */ } - else + else { fprintf(stderr, "warning: could not make use of timer\n"); + // those functions are actually not good at all on Wiz kernel + gp2x_get_ticks_ms = plat_get_ticks_ms_good; + gp2x_get_ticks_us = plat_get_ticks_us_good; + } + battdev = open("/dev/pollux_batt", O_RDONLY); if (battdev < 0) perror("Warning: could't open pollux_batt"); - f = fopen("/dev/accel", "rb"); - if (f) { - printf("detected Caanoo\n"); - gp2x_dev_id = GP2X_DEV_CAANOO; - fclose(f); - } - else { - printf("detected Wiz\n"); - gp2x_dev_id = GP2X_DEV_WIZ; - } - mixerdev = open("/dev/mixer", O_RDWR); if (mixerdev == -1) perror("open(/dev/mixer)"); - return 0; -} + plat_target.cpu_clock_get = pollux_cpu_clock_get; + plat_target.cpu_clock_set = pollux_cpu_clock_set; + plat_target.bat_capacity_get = pollux_bat_capacity_get; + plat_target.step_volume = step_volume; -/* to be called after in_probe */ -void plat_target_setup_input(void) -{ + gp2x_get_ticks_ms = gp2x_get_ticks_ms_; + gp2x_get_ticks_us = gp2x_get_ticks_us_; } -void plat_target_finish(void) +void pollux_finish(void) { timer_cleanup();