hw/omap2.c : separate gptimer module

Signed-off-by: cmchao <cmchao@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

1 files changed, 0 insertions, 462 deletions

diff --git a/hw/omap2.c b/hw/omap2.c
index 7533ccb..5ad5a98 100644
--- a/hw/omap2.c
+++ b/hw/omap2.c
@@ -29,468 +29,6 @@
 #include "soc_dma.h"
 #include "audio/audio.h"
 
-/* GP timers */
-struct omap_gp_timer_s {
-    qemu_irq irq;
-    qemu_irq wkup;
-    qemu_irq in;
-    qemu_irq out;
-    omap_clk clk;
-    QEMUTimer *timer;
-    QEMUTimer *match;
-    struct omap_target_agent_s *ta;
-
-    int in_val;
-    int out_val;
-    int64_t time;
-    int64_t rate;
-    int64_t ticks_per_sec;
-
-    int16_t config;
-    int status;
-    int it_ena;
-    int wu_ena;
-    int enable;
-    int inout;
-    int capt2;
-    int pt;
-    enum {
-        gpt_trigger_none, gpt_trigger_overflow, gpt_trigger_both
-    } trigger;
-    enum {
-        gpt_capture_none, gpt_capture_rising,
-        gpt_capture_falling, gpt_capture_both
-    } capture;
-    int scpwm;
-    int ce;
-    int pre;
-    int ptv;
-    int ar;
-    int st;
-    int posted;
-    uint32_t val;
-    uint32_t load_val;
-    uint32_t capture_val[2];
-    uint32_t match_val;
-    int capt_num;
-
-    uint16_t writeh;	/* LSB */
-    uint16_t readh;	/* MSB */
-};
-
-#define GPT_TCAR_IT	(1 << 2)
-#define GPT_OVF_IT	(1 << 1)
-#define GPT_MAT_IT	(1 << 0)
-
-static inline void omap_gp_timer_intr(struct omap_gp_timer_s *timer, int it)
-{
-    if (timer->it_ena & it) {
-        if (!timer->status)
-            qemu_irq_raise(timer->irq);
-
-        timer->status |= it;
-        /* Or are the status bits set even when masked?
-         * i.e. is masking applied before or after the status register?  */
-    }
-
-    if (timer->wu_ena & it)
-        qemu_irq_pulse(timer->wkup);
-}
-
-static inline void omap_gp_timer_out(struct omap_gp_timer_s *timer, int level)
-{
-    if (!timer->inout && timer->out_val != level) {
-        timer->out_val = level;
-        qemu_set_irq(timer->out, level);
-    }
-}
-
-static inline uint32_t omap_gp_timer_read(struct omap_gp_timer_s *timer)
-{
-    uint64_t distance;
-
-    if (timer->st && timer->rate) {
-        distance = qemu_get_clock(vm_clock) - timer->time;
-        distance = muldiv64(distance, timer->rate, timer->ticks_per_sec);
-
-        if (distance >= 0xffffffff - timer->val)
-            return 0xffffffff;
-        else
-            return timer->val + distance;
-    } else
-        return timer->val;
-}
-
-static inline void omap_gp_timer_sync(struct omap_gp_timer_s *timer)
-{
-    if (timer->st) {
-        timer->val = omap_gp_timer_read(timer);
-        timer->time = qemu_get_clock(vm_clock);
-    }
-}
-
-static inline void omap_gp_timer_update(struct omap_gp_timer_s *timer)
-{
-    int64_t expires, matches;
-
-    if (timer->st && timer->rate) {
-        expires = muldiv64(0x100000000ll - timer->val,
-                        timer->ticks_per_sec, timer->rate);
-        qemu_mod_timer(timer->timer, timer->time + expires);
-
-        if (timer->ce && timer->match_val >= timer->val) {
-            matches = muldiv64(timer->match_val - timer->val,
-                            timer->ticks_per_sec, timer->rate);
-            qemu_mod_timer(timer->match, timer->time + matches);
-        } else
-            qemu_del_timer(timer->match);
-    } else {
-        qemu_del_timer(timer->timer);
-        qemu_del_timer(timer->match);
-        omap_gp_timer_out(timer, timer->scpwm);
-    }
-}
-
-static inline void omap_gp_timer_trigger(struct omap_gp_timer_s *timer)
-{
-    if (timer->pt)
-        /* TODO in overflow-and-match mode if the first event to
-         * occur is the match, don't toggle.  */
-        omap_gp_timer_out(timer, !timer->out_val);
-    else
-        /* TODO inverted pulse on timer->out_val == 1?  */
-        qemu_irq_pulse(timer->out);
-}
-
-static void omap_gp_timer_tick(void *opaque)
-{
-    struct omap_gp_timer_s *timer = (struct omap_gp_timer_s *) opaque;
-
-    if (!timer->ar) {
-        timer->st = 0;
-        timer->val = 0;
-    } else {
-        timer->val = timer->load_val;
-        timer->time = qemu_get_clock(vm_clock);
-    }
-
-    if (timer->trigger == gpt_trigger_overflow ||
-                    timer->trigger == gpt_trigger_both)
-        omap_gp_timer_trigger(timer);
-
-    omap_gp_timer_intr(timer, GPT_OVF_IT);
-    omap_gp_timer_update(timer);
-}
-
-static void omap_gp_timer_match(void *opaque)
-{
-    struct omap_gp_timer_s *timer = (struct omap_gp_timer_s *) opaque;
-
-    if (timer->trigger == gpt_trigger_both)
-        omap_gp_timer_trigger(timer);
-
-    omap_gp_timer_intr(timer, GPT_MAT_IT);
-}
-
-static void omap_gp_timer_input(void *opaque, int line, int on)
-{
-    struct omap_gp_timer_s *s = (struct omap_gp_timer_s *) opaque;
-    int trigger;
-
-    switch (s->capture) {
-    default:
-    case gpt_capture_none:
-        trigger = 0;
-        break;
-    case gpt_capture_rising:
-        trigger = !s->in_val && on;
-        break;
-    case gpt_capture_falling:
-        trigger = s->in_val && !on;
-        break;
-    case gpt_capture_both:
-        trigger = (s->in_val == !on);
-        break;
-    }
-    s->in_val = on;
-
-    if (s->inout && trigger && s->capt_num < 2) {
-        s->capture_val[s->capt_num] = omap_gp_timer_read(s);
-
-        if (s->capt2 == s->capt_num ++)
-            omap_gp_timer_intr(s, GPT_TCAR_IT);
-    }
-}
-
-static void omap_gp_timer_clk_update(void *opaque, int line, int on)
-{
-    struct omap_gp_timer_s *timer = (struct omap_gp_timer_s *) opaque;
-
-    omap_gp_timer_sync(timer);
-    timer->rate = on ? omap_clk_getrate(timer->clk) : 0;
-    omap_gp_timer_update(timer);
-}
-
-static void omap_gp_timer_clk_setup(struct omap_gp_timer_s *timer)
-{
-    omap_clk_adduser(timer->clk,
-                    qemu_allocate_irqs(omap_gp_timer_clk_update, timer, 1)[0]);
-    timer->rate = omap_clk_getrate(timer->clk);
-}
-
-static void omap_gp_timer_reset(struct omap_gp_timer_s *s)
-{
-    s->config = 0x000;
-    s->status = 0;
-    s->it_ena = 0;
-    s->wu_ena = 0;
-    s->inout = 0;
-    s->capt2 = 0;
-    s->capt_num = 0;
-    s->pt = 0;
-    s->trigger = gpt_trigger_none;
-    s->capture = gpt_capture_none;
-    s->scpwm = 0;
-    s->ce = 0;
-    s->pre = 0;
-    s->ptv = 0;
-    s->ar = 0;
-    s->st = 0;
-    s->posted = 1;
-    s->val = 0x00000000;
-    s->load_val = 0x00000000;
-    s->capture_val[0] = 0x00000000;
-    s->capture_val[1] = 0x00000000;
-    s->match_val = 0x00000000;
-    omap_gp_timer_update(s);
-}
-
-static uint32_t omap_gp_timer_readw(void *opaque, target_phys_addr_t addr)
-{
-    struct omap_gp_timer_s *s = (struct omap_gp_timer_s *) opaque;
-
-    switch (addr) {
-    case 0x00:	/* TIDR */
-        return 0x21;
-
-    case 0x10:	/* TIOCP_CFG */
-        return s->config;
-
-    case 0x14:	/* TISTAT */
-        /* ??? When's this bit reset? */
-        return 1;						/* RESETDONE */
-
-    case 0x18:	/* TISR */
-        return s->status;
-
-    case 0x1c:	/* TIER */
-        return s->it_ena;
-
-    case 0x20:	/* TWER */
-        return s->wu_ena;
-
-    case 0x24:	/* TCLR */
-        return (s->inout << 14) |
-                (s->capt2 << 13) |
-                (s->pt << 12) |
-                (s->trigger << 10) |
-                (s->capture << 8) |
-                (s->scpwm << 7) |
-                (s->ce << 6) |
-                (s->pre << 5) |
-                (s->ptv << 2) |
-                (s->ar << 1) |
-                (s->st << 0);
-
-    case 0x28:	/* TCRR */
-        return omap_gp_timer_read(s);
-
-    case 0x2c:	/* TLDR */
-        return s->load_val;
-
-    case 0x30:	/* TTGR */
-        return 0xffffffff;
-
-    case 0x34:	/* TWPS */
-        return 0x00000000;	/* No posted writes pending.  */
-
-    case 0x38:	/* TMAR */
-        return s->match_val;
-
-    case 0x3c:	/* TCAR1 */
-        return s->capture_val[0];
-
-    case 0x40:	/* TSICR */
-        return s->posted << 2;
-
-    case 0x44:	/* TCAR2 */
-        return s->capture_val[1];
-    }
-
-    OMAP_BAD_REG(addr);
-    return 0;
-}
-
-static uint32_t omap_gp_timer_readh(void *opaque, target_phys_addr_t addr)
-{
-    struct omap_gp_timer_s *s = (struct omap_gp_timer_s *) opaque;
-    uint32_t ret;
-
-    if (addr & 2)
-        return s->readh;
-    else {
-        ret = omap_gp_timer_readw(opaque, addr);
-        s->readh = ret >> 16;
-        return ret & 0xffff;
-    }
-}
-
-static CPUReadMemoryFunc * const omap_gp_timer_readfn[] = {
-    omap_badwidth_read32,
-    omap_gp_timer_readh,
-    omap_gp_timer_readw,
-};
-
-static void omap_gp_timer_write(void *opaque, target_phys_addr_t addr,
-                uint32_t value)
-{
-    struct omap_gp_timer_s *s = (struct omap_gp_timer_s *) opaque;
-
-    switch (addr) {
-    case 0x00:	/* TIDR */
-    case 0x14:	/* TISTAT */
-    case 0x34:	/* TWPS */
-    case 0x3c:	/* TCAR1 */
-    case 0x44:	/* TCAR2 */
-        OMAP_RO_REG(addr);
-        break;
-
-    case 0x10:	/* TIOCP_CFG */
-        s->config = value & 0x33d;
-        if (((value >> 3) & 3) == 3)				/* IDLEMODE */
-            fprintf(stderr, "%s: illegal IDLEMODE value in TIOCP_CFG\n",
-                            __FUNCTION__);
-        if (value & 2)						/* SOFTRESET */
-            omap_gp_timer_reset(s);
-        break;
-
-    case 0x18:	/* TISR */
-        if (value & GPT_TCAR_IT)
-            s->capt_num = 0;
-        if (s->status && !(s->status &= ~value))
-            qemu_irq_lower(s->irq);
-        break;
-
-    case 0x1c:	/* TIER */
-        s->it_ena = value & 7;
-        break;
-
-    case 0x20:	/* TWER */
-        s->wu_ena = value & 7;
-        break;
-
-    case 0x24:	/* TCLR */
-        omap_gp_timer_sync(s);
-        s->inout = (value >> 14) & 1;
-        s->capt2 = (value >> 13) & 1;
-        s->pt = (value >> 12) & 1;
-        s->trigger = (value >> 10) & 3;
-        if (s->capture == gpt_capture_none &&
-                        ((value >> 8) & 3) != gpt_capture_none)
-            s->capt_num = 0;
-        s->capture = (value >> 8) & 3;
-        s->scpwm = (value >> 7) & 1;
-        s->ce = (value >> 6) & 1;
-        s->pre = (value >> 5) & 1;
-        s->ptv = (value >> 2) & 7;
-        s->ar = (value >> 1) & 1;
-        s->st = (value >> 0) & 1;
-        if (s->inout && s->trigger != gpt_trigger_none)
-            fprintf(stderr, "%s: GP timer pin must be an output "
-                            "for this trigger mode\n", __FUNCTION__);
-        if (!s->inout && s->capture != gpt_capture_none)
-            fprintf(stderr, "%s: GP timer pin must be an input "
-                            "for this capture mode\n", __FUNCTION__);
-        if (s->trigger == gpt_trigger_none)
-            omap_gp_timer_out(s, s->scpwm);
-        /* TODO: make sure this doesn't overflow 32-bits */
-        s->ticks_per_sec = get_ticks_per_sec() << (s->pre ? s->ptv + 1 : 0);
-        omap_gp_timer_update(s);
-        break;
-
-    case 0x28:	/* TCRR */
-        s->time = qemu_get_clock(vm_clock);
-        s->val = value;
-        omap_gp_timer_update(s);
-        break;
-
-    case 0x2c:	/* TLDR */
-        s->load_val = value;
-        break;
-
-    case 0x30:	/* TTGR */
-        s->time = qemu_get_clock(vm_clock);
-        s->val = s->load_val;
-        omap_gp_timer_update(s);
-        break;
-
-    case 0x38:	/* TMAR */
-        omap_gp_timer_sync(s);
-        s->match_val = value;
-        omap_gp_timer_update(s);
-        break;
-
-    case 0x40:	/* TSICR */
-        s->posted = (value >> 2) & 1;
-        if (value & 2)	/* How much exactly are we supposed to reset? */
-            omap_gp_timer_reset(s);
-        break;
-
-    default:
-        OMAP_BAD_REG(addr);
-    }
-}
-
-static void omap_gp_timer_writeh(void *opaque, target_phys_addr_t addr,
-                uint32_t value)
-{
-    struct omap_gp_timer_s *s = (struct omap_gp_timer_s *) opaque;
-
-    if (addr & 2)
-        return omap_gp_timer_write(opaque, addr, (value << 16) | s->writeh);
-    else
-        s->writeh = (uint16_t) value;
-}
-
-static CPUWriteMemoryFunc * const omap_gp_timer_writefn[] = {
-    omap_badwidth_write32,
-    omap_gp_timer_writeh,
-    omap_gp_timer_write,
-};
-
-struct omap_gp_timer_s *omap_gp_timer_init(struct omap_target_agent_s *ta,
-                qemu_irq irq, omap_clk fclk, omap_clk iclk)
-{
-    int iomemtype;
-    struct omap_gp_timer_s *s = (struct omap_gp_timer_s *)
-            qemu_mallocz(sizeof(struct omap_gp_timer_s));
-
-    s->ta = ta;
-    s->irq = irq;
-    s->clk = fclk;
-    s->timer = qemu_new_timer(vm_clock, omap_gp_timer_tick, s);
-    s->match = qemu_new_timer(vm_clock, omap_gp_timer_match, s);
-    s->in = qemu_allocate_irqs(omap_gp_timer_input, s, 1)[0];
-    omap_gp_timer_reset(s);
-    omap_gp_timer_clk_setup(s);
-
-    iomemtype = l4_register_io_memory(omap_gp_timer_readfn,
-                    omap_gp_timer_writefn, s);
-    omap_l4_attach(ta, 0, iomemtype);
-
-    return s;
-}
-
 /* 32-kHz Sync Timer of the OMAP2 */
 static uint32_t omap_synctimer_read(struct omap_synctimer_s *s) {
     return muldiv64(qemu_get_clock(vm_clock), 0x8000, get_ticks_per_sec());