#include <sys/stat.h>
#include <fcntl.h>
#include <sys/mman.h>
+#include <sys/ioctl.h>
#include <unistd.h>
+#include <linux/soundcard.h>
#include "soc.h"
#include "soc_mmsp2.h"
#include "plat_gp2x.h"
-#include "../emu.h"
#include "../plat.h"
-#include "../arm_utils.h"
-#include "940ctl.h"
-volatile unsigned short *gp2x_memregs;
-volatile unsigned long *gp2x_memregl;
-extern void *gp2x_screens[4];
-static int screensel = 0;
-
-int memdev = -1; /* used by code940 */
+static int mixerdev = -1;
static int touchdev = -1;
static int touchcal[7] = { 6203, 0, -1501397, 0, -4200, 16132680, 65536 };
-#define FRAMEBUFF_SIZE 0x30000
-#define FRAMEBUFF_WHOLESIZE (FRAMEBUFF_SIZE*4) // 320*240*2 + some more
-#define FRAMEBUFF_ADDR0 (0x4000000 - FRAMEBUFF_WHOLESIZE)
-#define FRAMEBUFF_ADDR1 (FRAMEBUFF_ADDR0 + FRAMEBUFF_SIZE)
-#define FRAMEBUFF_ADDR2 (FRAMEBUFF_ADDR1 + FRAMEBUFF_SIZE)
-#define FRAMEBUFF_ADDR3 (FRAMEBUFF_ADDR2 + FRAMEBUFF_SIZE)
-
-static const int gp2x_screenaddrs[4] = { FRAMEBUFF_ADDR0, FRAMEBUFF_ADDR1, FRAMEBUFF_ADDR2, FRAMEBUFF_ADDR3 };
-static int gp2x_screenaddrs_use[4];
-
static char gamma_was_changed = 0;
static char cpuclk_was_changed = 0;
-static unsigned short gp2x_screenaddr_old[4];
static unsigned short memtimex_old[2];
static unsigned short reg0910;
-/* video stuff */
-static void gp2x_video_flip_(void)
-{
- unsigned short lsw = (unsigned short) gp2x_screenaddrs_use[screensel&3];
- unsigned short msw = (unsigned short)(gp2x_screenaddrs_use[screensel&3] >> 16);
-
- gp2x_memregs[0x2910>>1] = msw;
- gp2x_memregs[0x2914>>1] = msw;
- gp2x_memregs[0x290E>>1] = lsw;
- gp2x_memregs[0x2912>>1] = lsw;
-
- // jump to other buffer:
- g_screen_ptr = gp2x_screens[++screensel&3];
-}
-
-/* doulblebuffered flip */
-static void gp2x_video_flip2_(void)
-{
- unsigned short msw = (unsigned short)(gp2x_screenaddrs_use[screensel&1] >> 16);
-
- gp2x_memregs[0x2910>>1] = msw;
- gp2x_memregs[0x2914>>1] = msw;
- gp2x_memregs[0x290E>>1] = 0;
- gp2x_memregs[0x2912>>1] = 0;
-
- // jump to other buffer:
- g_screen_ptr = gp2x_screens[++screensel&1];
-}
-
-static void gp2x_video_changemode_ll_(int bpp)
-{
- gp2x_memregs[0x28DA>>1] = (((bpp+1)/8)<<9)|0xAB; /*8/15/16/24bpp...*/
- gp2x_memregs[0x290C>>1] = 320*((bpp+1)/8); /*line width in bytes*/
-}
-
-static void gp2x_video_setpalette_(int *pal, int len)
-{
- unsigned short *g = (unsigned short *)pal;
- volatile unsigned short *memreg = &gp2x_memregs[0x295A>>1];
-
- gp2x_memregs[0x2958>>1] = 0;
-
- len *= 2;
- while (len--)
- *memreg = *g++;
-}
-
-static void gp2x_video_RGB_setscaling_(int ln_offs, int W, int H)
-{
- float escalaw, escalah;
- int bpp = (gp2x_memregs[0x28DA>>1]>>9)&0x3;
- unsigned short scalw;
-
- // set offset
- gp2x_screenaddrs_use[0] = gp2x_screenaddrs[0] + ln_offs * 320 * bpp;
- gp2x_screenaddrs_use[1] = gp2x_screenaddrs[1] + ln_offs * 320 * bpp;
- gp2x_screenaddrs_use[2] = gp2x_screenaddrs[2] + ln_offs * 320 * bpp;
- gp2x_screenaddrs_use[3] = gp2x_screenaddrs[3] + ln_offs * 320 * bpp;
-
- escalaw = 1024.0; // RGB Horiz LCD
- escalah = 320.0; // RGB Vert LCD
-
- if (gp2x_memregs[0x2800>>1]&0x100) //TV-Out
- {
- escalaw=489.0; // RGB Horiz TV (PAL, NTSC)
- if (gp2x_memregs[0x2818>>1] == 287) //PAL
- escalah=274.0; // RGB Vert TV PAL
- else if (gp2x_memregs[0x2818>>1] == 239) //NTSC
- escalah=331.0; // RGB Vert TV NTSC
- }
-
- // scale horizontal
- scalw = (unsigned short)((float)escalaw *(W/320.0));
- /* if there is no horizontal scaling, vertical doesn't work.
- * Here is a nasty wrokaround... */
- if (H != 240 && W == 320) scalw--;
- gp2x_memregs[0x2906>>1]=scalw;
- // scale vertical
- gp2x_memregl[0x2908>>2]=(unsigned long)((float)escalah *bpp *(H/240.0));
-}
-
-static void gp2x_video_wait_vsync_(void)
-{
- unsigned short v = gp2x_memregs[0x1182>>1];
- while (!((v ^ gp2x_memregs[0x1182>>1]) & 0x10))
- spend_cycles(1024);
-}
-
/* 940 */
void pause940(int yes)
{
if (yes)
- gp2x_memregs[0x0904>>1] &= 0xFFFE;
+ memregs[0x0904>>1] &= 0xFFFE;
else
- gp2x_memregs[0x0904>>1] |= 1;
+ memregs[0x0904>>1] |= 1;
}
void reset940(int yes, int bank)
{
- gp2x_memregs[0x3B48>>1] = ((yes&1) << 7) | (bank & 0x03);
+ memregs[0x3B48>>1] = ((yes&1) << 7) | (bank & 0x03);
}
/*
#define SYS_CLK_FREQ 7372800
-static void gp2x_set_cpuclk_(unsigned int mhz)
+static int cpu_current_mhz = 200;
+
+static int mmsp2_clock_get(void)
+{
+ // TODO: read the actual value?
+ return cpu_current_mhz;
+}
+
+static int mmsp2_clock_set(int mhz)
{
unsigned int mdiv, pdiv, sdiv = 0;
unsigned int v;
mdiv = (mhz * pdiv * 1000000) / SYS_CLK_FREQ;
if (mdiv & ~0xff) {
fprintf(stderr, "invalid cpuclk MHz: %u\n", mhz);
- return;
+ return -1;
}
v = ((mdiv-8)<<8) | ((pdiv-2)<<2) | sdiv;
- gp2x_memregs[0x910>>1] = v;
+ memregs[0x910>>1] = v;
for (i = 0; i < 10000; i++)
- if (!(gp2x_memregs[0x902>>1] & 1))
+ if (!(memregs[0x902>>1] & 1))
break;
cpuclk_was_changed = 1;
+ cpu_current_mhz = mhz;
+ return 0;
}
/* RAM timings */
if (t & ~mask) \
goto bad
+static __attribute__((noinline)) void spend_cycles(int c)
+{
+ asm volatile(
+ "0: subs %0, %0, #1 ;"
+ "bgt 0b"
+ : "=r" (c) : "0" (c) : "cc");
+}
+
static void set_ram_timing_vals(int tCAS, int tRC, int tRAS, int tWR, int tMRD, int tRFC, int tRP, int tRCD)
{
int i;
/* get spend_cycles() into cache */
spend_cycles(1);
- gp2x_memregs[0x3802>>1] = ((tMRD & 0xF) << 12) | ((tRFC & 0xF) << 8) | ((tRP & 0xF) << 4) | (tRCD & 0xF);
- gp2x_memregs[0x3804>>1] = 0x8000 | ((tCAS & 1) << 12) | ((tRC & 0xF) << 8) | ((tRAS & 0xF) << 4) | (tWR & 0xF);
+ memregs[0x3802>>1] = ((tMRD & 0xF) << 12) | ((tRFC & 0xF) << 8) | ((tRP & 0xF) << 4) | (tRCD & 0xF);
+ memregs[0x3804>>1] = 0x8000 | ((tCAS & 1) << 12) | ((tRC & 0xF) << 8) | ((tRAS & 0xF) << 4) | (tWR & 0xF);
/* be sure we don't access the mem while it's being reprogrammed */
spend_cycles(128*1024);
for (i = 0; i < 8*1024; i++)
- if (!(gp2x_memregs[0x3804>>1] & 0x8000))
+ if (!(memregs[0x3804>>1] & 0x8000))
break;
printf("RAM timings set.\n");
static void unset_ram_timings_(void)
{
- gp2x_memregs[0x3802>>1] = memtimex_old[0];
- gp2x_memregs[0x3804>>1] = memtimex_old[1] | 0x8000;
+ memregs[0x3802>>1] = memtimex_old[0];
+ memregs[0x3804>>1] = memtimex_old[1] | 0x8000;
printf("RAM timings reset to startup values.\n");
}
{
for (; set->reg; set++)
{
- unsigned short val = gp2x_memregs[set->reg >> 1];
+ unsigned short val = memregs[set->reg >> 1];
val &= set->valmask;
set->val = val;
}
{
for (; set->reg; set++)
{
- unsigned short val = gp2x_memregs[set->reg >> 1];
+ unsigned short val = memregs[set->reg >> 1];
val &= ~set->valmask;
val |= set->val;
- gp2x_memregs[set->reg >> 1] = val;
+ memregs[set->reg >> 1] = val;
}
}
-static void set_lcd_custom_rate_(int is_pal)
+static int mmsp2_lcdrate_set(int is_pal)
{
- if (gp2x_memregs[0x2800>>1] & 0x100) // tv-out
- return;
+ if (memregs[0x2800>>1] & 0x100) // tv-out
+ return 0;
printf("setting custom LCD refresh (%d Hz)... ", is_pal ? 100 : 120);
fflush(stdout);
set_reg_setting(is_pal ? lcd_rate_100 : lcd_rate_120);
printf("done.\n");
+ return 0;
}
static void unset_lcd_custom_rate_(void)
static void set_lcd_gamma_(int g100, int A_SNs_curve)
{
- float gamma = (float) g100 / 100;
+ float gamma = (float) g100 / 100.0f;
int i;
gamma = 1 / gamma;
+ if (g100 == 100)
+ A_SNs_curve = 0;
+
/* enable gamma */
- gp2x_memregs[0x2880>>1] &= ~(1<<12);
+ memregs[0x2880>>1] &= ~(1<<12);
- gp2x_memregs[0x295C>>1] = 0;
+ memregs[0x295C>>1] = 0;
for (i = 0; i < 256; i++)
{
unsigned char g;
}
else
{
- blah = i;
+ blah = (double)i;
}
g = (unsigned char)(255.0 * pow(blah/255.0, gamma));
//printf("%d : %d\n", i, g);
s = (g<<8) | g;
- gp2x_memregs[0x295E>>1]= s;
- gp2x_memregs[0x295E>>1]= g;
+ memregs[0x295E>>1]= s;
+ memregs[0x295E>>1]= g;
}
gamma_was_changed = 1;
}
-static int gp2x_read_battery_(void)
+static int mmsp2_gamma_set(int val, int black_level)
{
- return -1; /* TODO? */
+ set_lcd_gamma_(val, 1);
+ return 0;
}
/* these are not quite MMSP2 related,
fclose(f);
}
+static int step_volume(int *volume, int diff)
+{
+ int ret, val;
+
+ if (mixerdev < 0)
+ return -1;
+
+ *volume += diff;
+ if (*volume >= 100)
+ *volume = 100;
+ else if (*volume < 0)
+ *volume = 0;
+
+ val = *volume;
+ val |= val << 8;
+
+ ret = ioctl(mixerdev, SOUND_MIXER_WRITE_PCM, &val);
+ if (ret == -1) {
+ perror("WRITE_PCM");
+ return ret;
+ }
+
+ return 0;
+}
void mmsp2_init(void)
{
- int i;
-
memdev = open("/dev/mem", O_RDWR);
if (memdev == -1)
{
exit(1);
}
- gp2x_memregs = mmap(0, 0x10000, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0xc0000000);
- if (gp2x_memregs == MAP_FAILED)
+ memregs = mmap(0, 0x10000, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0xc0000000);
+ if (memregs == MAP_FAILED)
{
perror("mmap(memregs)");
exit(1);
}
- gp2x_memregl = (unsigned long *) gp2x_memregs;
+ memregl = (volatile unsigned int *) memregs;
- gp2x_memregs[0x2880>>1] &= ~0x383; // disable cursor, subpict, osd, video layers
-
- gp2x_screens[0] = mmap(0, FRAMEBUFF_WHOLESIZE, PROT_WRITE, MAP_SHARED,
- memdev, gp2x_screenaddrs[0]);
- if (gp2x_screens[0] == MAP_FAILED)
- {
- perror("mmap(g_screen_ptr)");
- exit(1);
- }
- printf("framebuffers:\n");
- printf(" %08x -> %p\n", gp2x_screenaddrs[0], gp2x_screens[0]);
- for (i = 1; i < 4; i++)
- {
- gp2x_screens[i] = (char *) gp2x_screens[i - 1] + FRAMEBUFF_SIZE;
- printf(" %08x -> %p\n", gp2x_screenaddrs[i], gp2x_screens[i]);
- }
-
- g_screen_ptr = gp2x_screens[0];
- screensel = 0;
-
- gp2x_screenaddr_old[0] = gp2x_memregs[0x290E>>1];
- gp2x_screenaddr_old[1] = gp2x_memregs[0x2910>>1];
- gp2x_screenaddr_old[2] = gp2x_memregs[0x2912>>1];
- gp2x_screenaddr_old[3] = gp2x_memregs[0x2914>>1];
-
- memcpy(gp2x_screenaddrs_use, gp2x_screenaddrs, sizeof(gp2x_screenaddrs));
+ memregs[0x2880>>1] &= ~0x383; // disable cursor, subpict, osd, video layers
/* save startup values: LCD refresh */
get_reg_setting(lcd_rate_defaults);
/* CPU and RAM timings */
- reg0910 = gp2x_memregs[0x0910>>1];
- memtimex_old[0] = gp2x_memregs[0x3802>>1];
- memtimex_old[1] = gp2x_memregs[0x3804>>1];
+ reg0910 = memregs[0x0910>>1];
+ memtimex_old[0] = memregs[0x3802>>1];
+ memtimex_old[1] = memregs[0x3804>>1];
/* touchscreen */
touchdev = open("/dev/touchscreen/wm97xx", O_RDONLY);
proc_set("/proc/sys/vm/max-readahead", "0\n");
proc_set("/proc/sys/vm/min-readahead", "0\n");
- /* code940 portion */
- sharedmem940_init();
-
- 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_;
+ mixerdev = open("/dev/mixer", O_RDWR);
+ if (mixerdev == -1)
+ perror("open(/dev/mixer)");
- gp2x_set_cpuclk = gp2x_set_cpuclk_;
+ set_ram_timings_();
- 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_;
+ plat_target.cpu_clock_get = mmsp2_clock_get;
+ plat_target.cpu_clock_set = mmsp2_clock_set;
+ plat_target.lcdrate_set = mmsp2_lcdrate_set;
+ plat_target.gamma_set = mmsp2_gamma_set;
+ plat_target.step_volume = step_volume;
gp2x_get_ticks_ms = plat_get_ticks_ms_good;
gp2x_get_ticks_us = plat_get_ticks_us_good;
{
reset940(1, 3);
pause940(1);
- sharedmem940_finish();
-
- gp2x_video_RGB_setscaling_(0, 320, 240);
- gp2x_video_changemode_ll_(16);
-
- gp2x_memregs[0x290E>>1] = gp2x_screenaddr_old[0];
- gp2x_memregs[0x2910>>1] = gp2x_screenaddr_old[1];
- gp2x_memregs[0x2912>>1] = gp2x_screenaddr_old[2];
- gp2x_memregs[0x2914>>1] = gp2x_screenaddr_old[3];
unset_lcd_custom_rate_();
if (gamma_was_changed)
set_lcd_gamma_(100, 0);
unset_ram_timings_();
if (cpuclk_was_changed)
- gp2x_memregs[0x910>>1] = reg0910;
+ memregs[0x910>>1] = reg0910;
- munmap(gp2x_screens[0], FRAMEBUFF_WHOLESIZE);
- munmap((void *)gp2x_memregs, 0x10000);
+ munmap((void *)memregs, 0x10000);
close(memdev);
if (touchdev >= 0)
close(touchdev);
+ if (mixerdev >= 0)
+ close(mixerdev);
}
-
notaz.gp2x.de / libpicofe.git / blobdiff