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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>
This commit is contained in:
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
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8
hw/omap.h
View File

@ -829,7 +829,6 @@ struct omap_mpu_state_s {
MemoryRegion tcmi_iomem;
MemoryRegion clkm_iomem;
MemoryRegion clkdsp_iomem;
MemoryRegion pwl_iomem;
MemoryRegion pwt_iomem;
MemoryRegion mpui_io_iomem;
MemoryRegion tap_iomem;
@ -867,12 +866,7 @@ struct omap_mpu_state_s {
struct omap_uwire_s *microwire;
struct {
uint8_t output;
uint8_t level;
uint8_t enable;
int clk;
} pwl;
struct omap_pwl_s *pwl;
struct {
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 */
static void omap_pwl_update(struct omap_mpu_state_s *s)
{
int output = (s->pwl.clk && s->pwl.enable) ? s->pwl.level : 0;
struct omap_pwl_s {
MemoryRegion iomem;
uint8_t output;
uint8_t level;
uint8_t enable;
int clk;
};
if (output != s->pwl.output) {
s->pwl.output = output;
static void omap_pwl_update(struct omap_pwl_s *s)
{
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);
}
}
@ -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,
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;
if (size != 1) {
@ -2311,9 +2319,9 @@ static uint64_t omap_pwl_read(void *opaque, target_phys_addr_t addr,
switch (offset) {
case 0x00: /* PWL_LEVEL */
return s->pwl.level;
return s->level;
case 0x04: /* PWL_CTRL */
return s->pwl.enable;
return s->enable;
}
OMAP_BAD_REG(addr);
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,
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;
if (size != 1) {
@ -2331,11 +2339,11 @@ static void omap_pwl_write(void *opaque, target_phys_addr_t addr,
switch (offset) {
case 0x00: /* PWL_LEVEL */
s->pwl.level = value;
s->level = value;
omap_pwl_update(s);
break;
case 0x04: /* PWL_CTRL */
s->pwl.enable = value & 1;
s->enable = value & 1;
omap_pwl_update(s);
break;
default:
@ -2350,34 +2358,37 @@ static const MemoryRegionOps omap_pwl_ops = {
.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->pwl.level = 0;
s->pwl.enable = 0;
s->pwl.clk = 1;
s->output = 0;
s->level = 0;
s->enable = 0;
s->clk = 1;
omap_pwl_update(s);
}
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);
}
static void omap_pwl_init(MemoryRegion *system_memory,
target_phys_addr_t base, struct omap_mpu_state_s *s,
omap_clk clk)
static struct omap_pwl_s *omap_pwl_init(MemoryRegion *system_memory,
target_phys_addr_t base,
omap_clk clk)
{
struct omap_pwl_s *s = g_malloc0(sizeof(*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);
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]);
return s;
}
/* Pulse-Width Tone module */
@ -3667,7 +3678,7 @@ static void omap1_mpu_reset(void *opaque)
omap_mmc_reset(mpu->mmc);
omap_mpuio_reset(mpu->mpuio);
omap_uwire_reset(mpu->microwire);
omap_pwl_reset(mpu);
omap_pwl_reset(mpu->pwl);
omap_pwt_reset(mpu);
omap_i2c_reset(mpu->i2c[0]);
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),
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"));
s->i2c[0] = omap_i2c_init(system_memory, 0xfffb3800,