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