static inline uint8_t tps65913_read(enum TPS65913_RTC_REG reg)
{
uint8_t val;
i2c_readb(CONFIG_DRIVERS_TI_TPS65913_RTC_BUS,
CONFIG_DRIVERS_TI_TPS65913_RTC_ADDR, reg, &val);
return val;
}
static uint64_t reg_read(struct reg_script_context *ctx)
{
int ret_code;
const struct reg_script *step;
uint8_t value = 0;
step = ctx->step;
switch (step->id) {
default:
printk(BIOS_ERR,
"ERROR - Unknown register set (0x%08x)!\n",
step->id);
ctx->display_features = REG_SCRIPT_DISPLAY_NOTHING;
break;
case GEN1_I2C_GPIO_EXP_0x20:
case GEN1_I2C_GPIO_EXP_0x21:
case GEN2_I2C_GPIO_EXP0:
case GEN2_I2C_GPIO_EXP1:
case GEN2_I2C_GPIO_EXP2:
case GEN2_I2C_LED_PWM:
if (ctx->display_features)
printk(BIOS_INFO, "I2C chip 0x%02x: ", step->id);
ret_code = i2c_readb(0, step->id, (uint8_t)step->reg, &value);
ASSERT(ret_code == 2);
break;
}
return value;
}
static uint8_t as3722_read(enum AS3722_RTC_REG reg)
{
uint8_t val;
i2c_readb(CONFIG_DRIVERS_AS3722_RTC_BUS,
CONFIG_DRIVERS_AS3722_RTC_ADDR, reg, &val);
return val;
}
static int setup_power(int is_resume)
{
int error = 0;
int i;
power_init();
if (is_resume) {
return 0;
}
/* Initialize I2C bus to configure PMIC. */
exynos_pinmux_i2c4();
i2c_init(PMIC_I2C_BUS, 1000000, 0x00); /* 1MHz */
for (i = 0; i < ARRAY_SIZE(pmic_writes); i++) {
uint8_t data = 0;
uint8_t reg = pmic_writes[i].reg;
if (pmic_writes[i].or_orig)
error |= i2c_readb(4, MAX77802_I2C_ADDR, reg, &data);
data |= pmic_writes[i].val;
error |= i2c_writeb(4, MAX77802_I2C_ADDR, reg, data);
}
return error;
}
static int max77620_set_bit(Max77620Pmic *pmic, uint8_t reg, uint8_t bit)
{
uint8_t val;
if (i2c_readb(pmic->bus, pmic->chip, reg, &val) ||
i2c_writeb(pmic->bus, pmic->chip, reg, val | bit))
return -1;
return 0;
}
static void rk808_clrsetbits(uint8_t bus, uint8_t reg, uint8_t clr, uint8_t set)
{
uint8_t value;
if (i2c_readb(bus, RK808_ADDR, reg, &value) ||
i2c_writeb(bus, RK808_ADDR, reg, (value & ~clr) | set))
printk(BIOS_ERR, "ERROR: Cannot set Rk808[%#x]!\n", reg);
}
static int rk808_set_bit(Rk808Pmic *pmic, uint8_t reg, uint8_t bit)
{
uint8_t val;
if (i2c_readb(pmic->bus, pmic->chip, reg, &val) ||
i2c_writeb(pmic->bus, pmic->chip, reg, val | bit))
return -1;
return 0;
}
static int rk808_set_bit(I2cOps *bus, uint8_t chip, uint8_t reg, uint8_t bit)
{
uint8_t val;
if (i2c_readb(bus, chip, reg, &val) ||
i2c_writeb(bus, chip, reg, val | bit))
return -1;
return 0;
}
int pmic_read_reg(unsigned bus, uint16_t reg, uint8_t *data)
{
if (i2c_readb(bus, PAGE_ADDR(reg), PAGE_OFFSET(reg), data)) {
printk(BIOS_ERR, "%s: page = 0x%02X, reg = 0x%02X failed!\n",
__func__, PAGE_ADDR(reg), PAGE_OFFSET(reg));
return -1;
}
return 0;
}
int i2c_set_bits(I2cOps *bus, int chip, int reg, int mask_set)
{
uint8_t tmp;
if (i2c_readb(bus, chip, reg, &tmp) < 0)
return -1;
if (i2c_writeb(bus, chip, reg, tmp | mask_set) < 0)
return -1;
return 0;
}
int i2c_clear_bits(I2cOps *bus, int chip, int reg, int mask_clr)
{
uint8_t tmp;
if (i2c_readb(bus, chip, reg, &tmp) < 0)
return -1;
if (i2c_writeb(bus, chip, reg, tmp & ~mask_clr) < 0)
return -1;
return 0;
}
static void enable_ad4567_spkr_amp(void)
{
uint8_t reg_byte;
if (board_id() >= BOARD_ID_PROTO_3)
return;
/*
* I2C6, device 0x34 is an AD4567 speaker amp on P0/P1.
* It needs to have a couple of regs tweaked to turn it on
* so it can provide audio output to the mono speaker on P0/P1.
*/
i2c_readb(I2C6_BUS, AD4567_DEV, PWR_CTL, ®_byte);
reg_byte &= ~SPWDN; // power up amp
i2c_writeb(I2C6_BUS, AD4567_DEV, PWR_CTL, reg_byte);
/* The next 2 settings are defaults, but set them anyway */
i2c_readb(I2C6_BUS, AD4567_DEV, DAC_CTL, ®_byte);
reg_byte &= ~DAC_MUTE; // unmute DAC (default)
reg_byte &= ~DAC_FS; // mask sample rate bits
reg_byte |= SR_32K_48KHZ; // set 32K-48KHz sample rate (default)
i2c_writeb(I2C6_BUS, AD4567_DEV, DAC_CTL, reg_byte);
}
void isp1301_update(struct reg_list *list)
{
for (; list && list->name; list++) {
//TRACE_MSG1(TCD, "list: %s", list->name);
memmove(list->values + 1, list->values, sizeof(list->values) - sizeof(u32));
switch(list->size) {
case 1:
list->values[0] = i2c_readb(list->reg);
break;
case 2:
list->values[0] = i2c_readw(list->reg);
break;
case 4:
list->values[0] = i2c_readl(list->reg);
break;
}
}
}
int ps8640_init(uint8_t bus, uint8_t chip)
{
u8 set_vdo_done;
struct stopwatch sw;
stopwatch_init_msecs_expire(&sw, 350);
do {
i2c_readb(bus, chip + 2, PAGE2_GPIO_H, &set_vdo_done);
if (stopwatch_expired(&sw)) {
printk(BIOS_INFO, "Failed to init ps8640.\n");
return -1;
}
} while ((set_vdo_done & PS_GPIO9) != PS_GPIO9);
i2c_writeb(bus, chip + 3, PAGE3_SET_ADD, VDO_CTL_ADD);
i2c_writeb(bus, chip + 3, PAGE3_SET_VAL, VDO_DIS);
i2c_writeb(bus, chip + 3, PAGE3_SET_ADD, VDO_CTL_ADD);
i2c_writeb(bus, chip + 3, PAGE3_SET_VAL, VDO_EN);
return 0;
}
/*
* Read a value from a register
*
* @param chip_addr i2c addr for max77686
* @param reg reg number to write
* @param val value to be written
*
*/
static inline int max77686_i2c_read(unsigned int bus, unsigned char chip_addr,
unsigned int reg, unsigned char *val)
{
return i2c_readb(bus, chip_addr, reg, (uint8_t *)val);
}
static int rk808_read(uint8_t reg, uint8_t *value)
{
return i2c_readb(CONFIG_PMIC_BUS, RK808_ADDR, reg, value);
}
int do_cbrand (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
int pos = 0;
uint8_t hdr[4] = { 's', 'e', 'x', 'i' };
uint8_t ftr[4] = { 'p', 'u', 's', '!' };
uint8_t cmp[4];
setenv("brand", "chumby");
i2c_init(0);
// Read in the header and verify it.
for(pos=0; pos<sizeof(hdr) && pos<768; pos++) {
if(i2c_readb(0x50, pos, cmp+pos)) {
printf("I2C read error\n");
return 1;
}
}
if(memcmp(hdr, cmp, sizeof(hdr))) {
printf("DCID is uninitialized\n");
return 1;
}
// Continue looking until either (1) we get 'part', or (2) we fall off.
while(pos<768) {
uint16_t size;
uint8_t container;
int blk_pos;
for(blk_pos=0; blk_pos<sizeof(cmp) && pos<768; blk_pos++) {
if(i2c_readb(0x50+((pos>>8)&3), pos&0x00000000ff, cmp+blk_pos)) {
printf("I2C read error\n");
return 1;
}
pos++;
}
if(cmp[0]=='p' && cmp[1]=='u' && cmp[2]=='s' && cmp[3]=='!') {
return 0;
}
// Since it's not the footer, we have another tag to read. Figure
// out the size, then copy the rest of the tag title.
container = (cmp[1] & 0x80);
((uint8_t *)&size)[1] = cmp[0];
((uint8_t *)&size)[0] = cmp[1] & 0x7f;
size -= 6; // Strip the header off the size.
cmp[0] = cmp[2];
cmp[1] = cmp[3];
if(i2c_readb(0x50+(pos>>8), pos&0xff, cmp+2)) {
printf("I2C read error\n");
return 1;
}
pos++;
if(i2c_readb(0x50+(pos>>8), pos&0xff, cmp+3)) {
printf("I2C read error\n");
return 1;
}
pos++;
if(!container) {
char data[size+1];
data[size]='\0';
for(blk_pos=0; blk_pos<size && pos<768; blk_pos++) {
i2c_readb(0x50+(pos>>8), pos&0xff, data+blk_pos);
pos++;
}
if(cmp[0]=='p' && cmp[1]=='a' && cmp[2]=='r' && cmp[3]=='t') {
//int partnum = simple_strtoul(data, NULL, 0);
uint16_t partnum;
char partnum_s[16] = "1001";
// The DCID is stored in a very... special... manner.
((uint8_t *)&partnum)[0] = data[0];
((uint8_t *)&partnum)[1] = data[1];
sprintf(partnum_s, "%02X%02X", data[0], data[1]);
// Set the brand from a hardcoded lookup table.
if(partnum==272)
setenv("brand", "insignia");
setenv("brandnum", partnum_s);
return partnum;
}
}
}
static int max98090_i2c_read(Max98090Codec *codec, uint8_t reg, uint8_t *data)
{
return i2c_readb(codec->i2c, codec->chip, reg, data);
}