Commit 4ea29f74 authored by Andrzej Zaborowski's avatar Andrzej Zaborowski
Browse files

Tosa: dummy lcd support (Dmitry Baryshkov). 



Signed-off-by: default avatarDmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: default avatarAndrzej Zaborowski <andrew.zaborowski@intel.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5616 c046a42c-6fe2-441c-8c8c-71466251a162
parent 1f163b14

hw/tosa.c

+84 −0
Original line number Diff line number Diff line
@@ -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;