| // Copyright 2017 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <assert.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <threads.h> |
| #include <unistd.h> |
| |
| #include <ddk/binding.h> |
| #include <ddk/debug.h> |
| #include <ddk/device.h> |
| #include <ddk/driver.h> |
| #include <ddk/protocol/platform-defs.h> |
| |
| #include <zircon/process.h> |
| #include <zircon/syscalls.h> |
| #include <zircon/assert.h> |
| |
| #include "a113-bus.h" |
| #include "a113-clocks.h" |
| #include "a113-hw.h" |
| #include "aml-i2c.h" |
| #include <hw/reg.h> |
| |
| static zx_status_t a113_get_initial_mode(void* ctx, usb_mode_t* out_mode) { |
| *out_mode = USB_MODE_HOST; |
| return ZX_OK; |
| } |
| |
| static zx_status_t a113_set_mode(void* ctx, usb_mode_t mode) { |
| a113_bus_t* bus = ctx; |
| return a113_usb_set_mode(bus, mode); |
| } |
| |
| usb_mode_switch_protocol_ops_t usb_mode_switch_ops = { |
| .get_initial_mode = a113_get_initial_mode, |
| .set_mode = a113_set_mode, |
| }; |
| |
| static zx_status_t a113_bus_get_protocol(void* ctx, uint32_t proto_id, void* out) { |
| a113_bus_t* bus = ctx; |
| |
| switch (proto_id) { |
| case ZX_PROTOCOL_USB_MODE_SWITCH: |
| memcpy(out, &bus->usb_mode_switch, sizeof(bus->usb_mode_switch)); |
| return ZX_OK; |
| default: |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| } |
| |
| static pbus_interface_ops_t a113_bus_bus_ops = { |
| .get_protocol = a113_bus_get_protocol, |
| }; |
| |
| static void a113_bus_release(void* ctx) { |
| a113_bus_t* bus = ctx; |
| free(bus); |
| } |
| |
| static zx_protocol_device_t a113_bus_device_protocol = { |
| .version = DEVICE_OPS_VERSION, |
| .release = a113_bus_release, |
| }; |
| |
| static void i2chandler(aml_i2c_txn_t *txn) { |
| uint64_t *temp = (uint64_t*)txn->rx_buff; |
| printf("handler got back %016lx\n",*temp); |
| *temp = 0; |
| } |
| |
| static uint8_t txbuff[8]; |
| static uint8_t rxbuff[8]; |
| |
| static int i2c_test_thread(void *arg) { |
| aml_i2c_connection_t *conn = arg; |
| |
| printf("test thread\n"); |
| while(1) { |
| txbuff[0] = 0x00; |
| printf("writing async\n"); |
| aml_i2c_wr_rd_async(conn,txbuff,1,rxbuff,8,&i2chandler); |
| sleep(1); |
| } |
| return 0; |
| } |
| |
| static zx_status_t a113_bus_bind(void* ctx, zx_device_t* parent, void** cookie) { |
| a113_bus_t* bus = calloc(1, sizeof(a113_bus_t)); |
| if (!bus) { |
| return ZX_ERR_NO_MEMORY; |
| } |
| |
| if (device_get_protocol(parent, ZX_PROTOCOL_PLATFORM_BUS, &bus->pbus) != ZX_OK) { |
| free(bus); |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| |
| bus->usb_mode_switch.ops = &usb_mode_switch_ops; |
| bus->usb_mode_switch.ctx = bus; |
| |
| device_add_args_t args = { |
| .version = DEVICE_ADD_ARGS_VERSION, |
| .name = "a113-bus", |
| .ctx = bus, |
| .ops = &a113_bus_device_protocol, |
| .flags = DEVICE_ADD_NON_BINDABLE, |
| }; |
| |
| zx_status_t status = device_add(parent, &args, NULL); |
| if (status != ZX_OK) { |
| goto fail; |
| } |
| |
| pbus_interface_t intf; |
| intf.ops = &a113_bus_bus_ops; |
| intf.ctx = bus; |
| pbus_set_interface(&bus->pbus, &intf); |
| |
| if ((status = a113_usb_init(bus)) != ZX_OK) { |
| dprintf(ERROR, "a113_bus_bind failed: %d\n", status); |
| } |
| if ((status = a113_audio_init(bus)) != ZX_OK) { |
| dprintf(ERROR, "a113_audio_init failed: %d\n", status); |
| } |
| |
| // Initialize Pin mux subsystem. |
| status = a113_init_pinmux(bus); |
| if (status != ZX_OK) { |
| dprintf(ERROR, "a113_bus_bind: failed to initialize pinmux subsystem, " |
| "rc = %d\n", status); |
| // Don't think this is worthy of returning failure in bind. |
| } |
| |
| printf("A113: setting pinmux for i2c-b\n"); |
| a113_config_pinmux(bus, A113_GPIOZ(8), 1); |
| a113_config_pinmux(bus, A113_GPIOZ(9), 1); |
| |
| aml_i2c_dev_t *i2cb_dev; |
| |
| status = aml_i2c_init(&i2cb_dev, bus, AML_I2C_B); |
| if (status != ZX_OK) { |
| printf("Could not initialize i2c device!\n"); |
| } |
| //aml_i2c_set_slave_addr(i2cb_dev,0x18); |
| aml_i2c_dumpstate(i2cb_dev); |
| aml_i2c_connection_t *conn1; |
| aml_i2c_connection_t *conn2; |
| aml_i2c_connection_t *conn3; |
| |
| |
| aml_i2c_connect(&conn1,i2cb_dev,0x18,7); |
| aml_i2c_connect(&conn2,i2cb_dev,0x18,7); |
| aml_i2c_connect(&conn3,i2cb_dev,0x10,7); |
| |
| thrd_t thrd; |
| thrd_create_with_name(&thrd, i2c_test_thread, conn1, "i2c_test_thread"); |
| |
| |
| //aml_i2c_write(i2cb_dev, NULL, 2); |
| /* |
| printf("A113: register block base address (virt) = %p\n",reg); |
| printf("A113: register block base address (phys) = %lx\nsize=%lu\n",bus->i2c_b_regs.phys, |
| bus->i2c_b_regs.size); |
| reg[0] = reg[0] | (1 << 22); |
| reg[0] = reg[0] & ~(3 << 23); |
| |
| printf("A113: regs[0] - 0x%08x\n",reg[0]); |
| printf("A113: regs[1] - 0x%08x\n",reg[1]); |
| printf("A113: regs[2] - 0x%08x\n",reg[2]); |
| printf("A113: regs[3] - 0x%08x\n",reg[3]); |
| |
| */ |
| #if 0 |
| aml_i2c_test(i2cb_dev); |
| |
| a113_clk_dev_t *clk_dev; |
| |
| status = a113_clk_init(&clk_dev, bus); |
| if (status != ZX_OK) { |
| printf("Could not initialize i2c device!\n"); |
| } |
| uint32_t clkreg = a113_clk_get_reg(clk_dev,0x5d); |
| clkreg = (clkreg & ~(0x7f | (0x7 << 12))) | 5 | (0x7 << 12); |
| a113_clk_set_reg(clk_dev, 0x5d, clkreg); |
| |
| printf("clk reg 0x5d = %08x\n", a113_clk_get_reg(clk_dev,0x5d)); |
| printf("clk reg 0xa0 = %08x\n", a113_clk_get_reg(clk_dev,0xa0)); |
| printf("clk reg 0xa1 = %08x\n", a113_clk_get_reg(clk_dev,0xa1)); |
| printf("clk reg 0xa2 = %08x\n", a113_clk_get_reg(clk_dev,0xa2)); |
| printf("clk reg 0xa3 = %08x\n", a113_clk_get_reg(clk_dev,0xa3)); |
| printf("clk reg 0xa4 = %08x\n", a113_clk_get_reg(clk_dev,0xa4)); |
| printf("clk reg 0xa5 = %08x\n", a113_clk_get_reg(clk_dev,0xa5)); |
| printf("clk reg 0xa6 = %08x\n", a113_clk_get_reg(clk_dev,0xa6)); |
| printf("clk reg 0xa7 = %08x\n", a113_clk_get_reg(clk_dev,0xa7)); |
| printf("clk reg 0xa8 = %08x\n", a113_clk_get_reg(clk_dev,0xa8)); |
| printf("clk reg 0xa9 = %08x\n", a113_clk_get_reg(clk_dev,0xa9)); |
| printf("clk reg 0xb8 = %08x\n", a113_clk_get_reg(clk_dev,0xb8)); |
| printf("clk reg 0xb9 = %08x\n", a113_clk_get_reg(clk_dev,0xb9)); |
| #endif |
| |
| return ZX_OK; |
| |
| fail: |
| printf("a113_bus_bind failed %d\n", status); |
| a113_bus_release(bus); |
| return status; |
| } |
| |
| static zx_driver_ops_t a113_bus_driver_ops = { |
| .version = DRIVER_OPS_VERSION, |
| .bind = a113_bus_bind, |
| }; |
| |
| ZIRCON_DRIVER_BEGIN(a113_bus, a113_bus_driver_ops, "zircon", "0.1", 3) |
| BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_PLATFORM_BUS), |
| BI_ABORT_IF(NE, BIND_PLATFORM_DEV_VID, PDEV_VID_AMLOGIC), |
| BI_MATCH_IF(EQ, BIND_PLATFORM_DEV_PID, PDEV_PID_AMLOGIC_A113), |
| ZIRCON_DRIVER_END(a113_bus) |