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/* SPDX-License-Identifier: GPL-2.0-only */
#include <console/console.h>
#include <device/i2c_bus.h>
#include "chip.h"
#include "tas5825m.h"
int tas5825m_write_at(struct device *dev, uint8_t addr, uint8_t value)
{
return i2c_dev_writeb_at(dev, addr, value);
}
int tas5825m_write_block_at(struct device *dev, uint8_t addr,
const uint8_t *values, uint8_t length)
{
// TODO: use I2C block write for better performance; SMBus does not
// have `transfer` op for it.
int res = 0;
for (uint8_t i = 0; i < length; i++) {
res = i2c_dev_writeb_at(dev, addr + i, values[i]);
if (res < 0)
return res;
}
return (int)length;
}
int tas5825m_set_page(struct device *dev, uint8_t page)
{
return tas5825m_write_at(dev, 0x00, page);
}
int tas5825m_set_book(struct device *dev, uint8_t book)
{
int res = tas5825m_set_page(dev, 0x00);
if (res < 0)
return res;
return tas5825m_write_at(dev, 0x7F, book);
}
__weak int tas5825m_setup(struct device *dev, int id)
{
printk(BIOS_ERR, "tas5825m: setup not implemented\n");
return -1;
}
static void tas5825m_init(struct device *dev)
{
if (dev->enabled && dev->path.type == DEVICE_PATH_I2C && i2c_link(dev)) {
printk(BIOS_DEBUG, "tas5825m at %s\n", dev_path(dev));
struct drivers_i2c_tas5825m_config *config = dev->chip_info;
if (config) {
printk(BIOS_DEBUG, "tas5825m id %d\n", config->id);
int res = tas5825m_setup(dev, config->id);
if (res)
printk(BIOS_ERR, "tas5825m init failed: %d\n", res);
else
printk(BIOS_DEBUG, "tas5825m init successful\n");
} else {
printk(BIOS_ERR, "tas5825m: failed to find config\n");
}
}
}
static struct device_operations tas5825m_operations = {
.read_resources = noop_read_resources,
.set_resources = noop_set_resources,
.init = tas5825m_init,
};
static void tas5825m_enable_dev(struct device *dev)
{
dev->ops = &tas5825m_operations;
}
struct chip_operations drivers_i2c_tas5825m_ops = {
.name = "TI TAS5825M Amplifier",
.enable_dev = tas5825m_enable_dev,
};
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