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Tosa: dummy lcd support (Dmitry Baryshkov). 

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5616 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
balrog 2008-11-04 08:54:23 +00:00
parent 1f163b1493
commit 4ea29f749d
1 changed files with 84 additions and 0 deletions
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84
hw/tosa.c
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@ -17,6 +17,7 @@
#include "pcmcia.h"
#include "block.h"
#include "boards.h"
#include "i2c.h"
#define TOSA_RAM 0x04000000
#define TOSA_ROM 0x00800000
@ -39,6 +40,10 @@
#define TOSA_GPIO_CHRG_ERR_LED (TOSA_SCOOP_JC_GPIO_BASE + 2)
#define TOSA_GPIO_WLAN_LED (TOSA_SCOOP_JC_GPIO_BASE + 7)
#define DAC_BASE 0x4e
#define DAC_CH1 0
#define DAC_CH2 1
static void tosa_microdrive_attach(struct pxa2xx_state_s *cpu)
{
struct pcmcia_card_s *md;
@ -105,6 +110,83 @@ static void tosa_gpio_setup(struct pxa2xx_state_s *cpu,
scoop_gpio_out_set(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);
}
static uint32_t tosa_ssp_read(void *opaque)
{
return 0;
}
static void tosa_ssp_write(void *opaque, uint32_t value)
{
fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
}
struct tosa_dac_i2c {
i2c_slave i2c;
int len;
char buf[3];
};
static int tosa_dac_send(i2c_slave *i2c, uint8_t data)
{
struct tosa_dac_i2c *s = (struct tosa_dac_i2c *)i2c;
s->buf[s->len] = data;
if (s->len ++ > 2) {
#ifdef VERBOSE
fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
#endif
return 1;
}
if (s->len == 2) {
fprintf(stderr, "dac: channel %d value 0x%02x\n",
s->buf[0], s->buf[1]);
}
return 0;
}
static void tosa_dac_event(i2c_slave *i2c, enum i2c_event event)
{
struct tosa_dac_i2c *s = (struct tosa_dac_i2c *)i2c;
s->len = 0;
switch (event) {
case I2C_START_SEND:
break;
case I2C_START_RECV:
printf("%s: recv not supported!!!\n", __FUNCTION__);
break;
case I2C_FINISH:
#ifdef VERBOSE
if (s->len < 2)
printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
if (s->len > 2)
printf("%s: message too long\n", __FUNCTION__);
#endif
break;
default:
break;
}
}
int tosa_dac_recv(i2c_slave *s)
{
printf("%s: recv not supported!!!\n", __FUNCTION__);
return -1;
}
static void tosa_tg_init(struct pxa2xx_state_s *cpu)
{
struct i2c_bus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
struct i2c_slave *dac = i2c_slave_init(bus, 0, sizeof(struct tosa_dac_i2c));
dac->send = tosa_dac_send;
dac->event = tosa_dac_event;
dac->recv = tosa_dac_recv;
i2c_set_slave_address(dac, DAC_BASE);
pxa2xx_ssp_attach(cpu->ssp[1], tosa_ssp_read,
tosa_ssp_write, cpu);
}
static struct arm_boot_info tosa_binfo = {
.loader_start = PXA2XX_SDRAM_BASE,
.ram_size = 0x04000000,
@ -141,6 +223,8 @@ static void tosa_init(ram_addr_t ram_size, int vga_ram_size,
tosa_microdrive_attach(cpu);
tosa_tg_init(cpu);
/* Setup initial (reset) machine state */
cpu->env->regs[15] = tosa_binfo.loader_start;