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hw/omap1.c: Separate PWL from omap_mpu_state 

Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
[Riku Voipio: Fixes and restructuring patchset]
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
[Peter Maydell: More fixes and cleanups for upstream submission]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
master
Juha Riihimäki 2011-12-20 08:11:32 +00:00 committed by Peter Maydell
parent 3b204c8129
commit 8717d88ac7
2 changed files with 38 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
hw/omap.h
View File

@ -829,7 +829,6 @@ struct omap_mpu_state_s {
MemoryRegion tcmi_iomem; MemoryRegion tcmi_iomem;
MemoryRegion clkm_iomem; MemoryRegion clkm_iomem;
MemoryRegion clkdsp_iomem; MemoryRegion clkdsp_iomem;
MemoryRegion pwl_iomem;
MemoryRegion pwt_iomem; MemoryRegion pwt_iomem;
MemoryRegion mpui_io_iomem; MemoryRegion mpui_io_iomem;
MemoryRegion tap_iomem; MemoryRegion tap_iomem;
@ -867,12 +866,7 @@ struct omap_mpu_state_s {
struct omap_uwire_s *microwire; struct omap_uwire_s *microwire;
struct { struct omap_pwl_s *pwl;
uint8_t output;
uint8_t level;
uint8_t enable;
int clk;
} pwl;
struct { struct {
uint8_t frc; uint8_t frc;

62
hw/omap1.c
View File

@ -2289,12 +2289,20 @@ void omap_uwire_attach(struct omap_uwire_s *s,
} }
/* Pseudonoise Pulse-Width Light Modulator */ /* Pseudonoise Pulse-Width Light Modulator */
static void omap_pwl_update(struct omap_mpu_state_s *s) struct omap_pwl_s {
{ MemoryRegion iomem;
int output = (s->pwl.clk && s->pwl.enable) ? s->pwl.level : 0; uint8_t output;
uint8_t level;
uint8_t enable;
int clk;
};
if (output != s->pwl.output) { static void omap_pwl_update(struct omap_pwl_s *s)
s->pwl.output = output; {
int output = (s->clk && s->enable) ? s->level : 0;
if (output != s->output) {
s->output = output;
printf("%s: Backlight now at %i/256\n", __FUNCTION__, output); printf("%s: Backlight now at %i/256\n", __FUNCTION__, output);
} }
} }
@ -2302,7 +2310,7 @@ static void omap_pwl_update(struct omap_mpu_state_s *s)
static uint64_t omap_pwl_read(void *opaque, target_phys_addr_t addr, static uint64_t omap_pwl_read(void *opaque, target_phys_addr_t addr,
unsigned size) unsigned size)
{ {
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; struct omap_pwl_s *s = (struct omap_pwl_s *) opaque;
int offset = addr & OMAP_MPUI_REG_MASK; int offset = addr & OMAP_MPUI_REG_MASK;
if (size != 1) { if (size != 1) {
@ -2311,9 +2319,9 @@ static uint64_t omap_pwl_read(void *opaque, target_phys_addr_t addr,
switch (offset) { switch (offset) {
case 0x00: /* PWL_LEVEL */ case 0x00: /* PWL_LEVEL */
return s->pwl.level; return s->level;
case 0x04: /* PWL_CTRL */ case 0x04: /* PWL_CTRL */
return s->pwl.enable; return s->enable;
} }
OMAP_BAD_REG(addr); OMAP_BAD_REG(addr);
return 0; return 0;
@ -2322,7 +2330,7 @@ static uint64_t omap_pwl_read(void *opaque, target_phys_addr_t addr,
static void omap_pwl_write(void *opaque, target_phys_addr_t addr, static void omap_pwl_write(void *opaque, target_phys_addr_t addr,
uint64_t value, unsigned size) uint64_t value, unsigned size)
{ {
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; struct omap_pwl_s *s = (struct omap_pwl_s *) opaque;
int offset = addr & OMAP_MPUI_REG_MASK; int offset = addr & OMAP_MPUI_REG_MASK;
if (size != 1) { if (size != 1) {
@ -2331,11 +2339,11 @@ static void omap_pwl_write(void *opaque, target_phys_addr_t addr,
switch (offset) { switch (offset) {
case 0x00: /* PWL_LEVEL */ case 0x00: /* PWL_LEVEL */
s->pwl.level = value; s->level = value;
omap_pwl_update(s); omap_pwl_update(s);
break; break;
case 0x04: /* PWL_CTRL */ case 0x04: /* PWL_CTRL */
s->pwl.enable = value & 1; s->enable = value & 1;
omap_pwl_update(s); omap_pwl_update(s);
break; break;
default: default:
@ -2350,34 +2358,37 @@ static const MemoryRegionOps omap_pwl_ops = {
.endianness = DEVICE_NATIVE_ENDIAN, .endianness = DEVICE_NATIVE_ENDIAN,
}; };
static void omap_pwl_reset(struct omap_mpu_state_s *s) static void omap_pwl_reset(struct omap_pwl_s *s)
{ {
s->pwl.output = 0; s->output = 0;
s->pwl.level = 0; s->level = 0;
s->pwl.enable = 0; s->enable = 0;
s->pwl.clk = 1; s->clk = 1;
omap_pwl_update(s); omap_pwl_update(s);
} }
static void omap_pwl_clk_update(void *opaque, int line, int on) static void omap_pwl_clk_update(void *opaque, int line, int on)
{ {
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; struct omap_pwl_s *s = (struct omap_pwl_s *) opaque;
s->pwl.clk = on; s->clk = on;
omap_pwl_update(s); omap_pwl_update(s);
} }
static void omap_pwl_init(MemoryRegion *system_memory, static struct omap_pwl_s *omap_pwl_init(MemoryRegion *system_memory,
target_phys_addr_t base, struct omap_mpu_state_s *s, target_phys_addr_t base,
omap_clk clk) omap_clk clk)
{ {
struct omap_pwl_s *s = g_malloc0(sizeof(*s));
omap_pwl_reset(s); omap_pwl_reset(s);
memory_region_init_io(&s->pwl_iomem, &omap_pwl_ops, s, memory_region_init_io(&s->iomem, &omap_pwl_ops, s,
"omap-pwl", 0x800); "omap-pwl", 0x800);
memory_region_add_subregion(system_memory, base, &s->pwl_iomem); memory_region_add_subregion(system_memory, base, &s->iomem);
omap_clk_adduser(clk, qemu_allocate_irqs(omap_pwl_clk_update, s, 1)[0]); omap_clk_adduser(clk, qemu_allocate_irqs(omap_pwl_clk_update, s, 1)[0]);
return s;
} }
/* Pulse-Width Tone module */ /* Pulse-Width Tone module */
@ -3667,7 +3678,7 @@ static void omap1_mpu_reset(void *opaque)
omap_mmc_reset(mpu->mmc); omap_mmc_reset(mpu->mmc);
omap_mpuio_reset(mpu->mpuio); omap_mpuio_reset(mpu->mpuio);
omap_uwire_reset(mpu->microwire); omap_uwire_reset(mpu->microwire);
omap_pwl_reset(mpu); omap_pwl_reset(mpu->pwl);
omap_pwt_reset(mpu); omap_pwt_reset(mpu);
omap_i2c_reset(mpu->i2c[0]); omap_i2c_reset(mpu->i2c[0]);
omap_rtc_reset(mpu->rtc); omap_rtc_reset(mpu->rtc);
@ -3961,7 +3972,8 @@ struct omap_mpu_state_s *omap310_mpu_init(MemoryRegion *system_memory,
qdev_get_gpio_in(s->ih[1], OMAP_INT_uWireRX), qdev_get_gpio_in(s->ih[1], OMAP_INT_uWireRX),
s->drq[OMAP_DMA_UWIRE_TX], omap_findclk(s, "mpuper_ck")); s->drq[OMAP_DMA_UWIRE_TX], omap_findclk(s, "mpuper_ck"));
omap_pwl_init(system_memory, 0xfffb5800, s, omap_findclk(s, "armxor_ck")); s->pwl = omap_pwl_init(system_memory, 0xfffb5800,
omap_findclk(s, "armxor_ck"));
omap_pwt_init(system_memory, 0xfffb6000, s, omap_findclk(s, "armxor_ck")); omap_pwt_init(system_memory, 0xfffb6000, s, omap_findclk(s, "armxor_ck"));
s->i2c[0] = omap_i2c_init(system_memory, 0xfffb3800, s->i2c[0] = omap_i2c_init(system_memory, 0xfffb3800,