diff options
Diffstat (limited to 'board/coffeecake/usb_pd_policy.c')
| -rw-r--r-- | board/coffeecake/usb_pd_policy.c | 56 |
1 files changed, 47 insertions, 9 deletions
diff --git a/board/coffeecake/usb_pd_policy.c b/board/coffeecake/usb_pd_policy.c index 2b9e9d60d3..e6150dea63 100644 --- a/board/coffeecake/usb_pd_policy.c +++ b/board/coffeecake/usb_pd_policy.c @@ -5,6 +5,7 @@ #include "adc.h" #include "board.h" +#include "charger/sy21612.h" #include "common.h" #include "console.h" #include "ec_commands.h" @@ -22,15 +23,28 @@ #define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args) #define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args) -#define PDO_FIXED_FLAGS PDO_FIXED_COMM_CAP +#define PDO_FIXED_FLAGS (PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP |\ + PDO_FIXED_COMM_CAP) -/* Source PDOs */ -const uint32_t pd_src_pdo[] = {}; + +/* Voltage indexes for the PDOs */ +enum volt_idx { + PDO_IDX_5V = 0, + PDO_IDX_9V = 1, + /* TODO: add PPS support */ + PDO_IDX_COUNT +}; + +/* PDOs */ +const uint32_t pd_src_pdo[] = { + [PDO_IDX_5V] = PDO_FIXED(5000, 3000, PDO_FIXED_FLAGS), + [PDO_IDX_9V] = PDO_FIXED(9000, 3000, PDO_FIXED_FLAGS), +}; const int pd_src_pdo_cnt = ARRAY_SIZE(pd_src_pdo); +BUILD_ASSERT(ARRAY_SIZE(pd_src_pdo) == PDO_IDX_COUNT); -/* Fake PDOs : we just want our pre-defined voltages */ const uint32_t pd_snk_pdo[] = { - PDO_FIXED(5000, 500, PDO_FIXED_FLAGS), + PDO_FIXED(5000, 1500, PDO_FIXED_FLAGS), }; const int pd_snk_pdo_cnt = ARRAY_SIZE(pd_snk_pdo); @@ -52,16 +66,35 @@ int pd_is_valid_input_voltage(int mv) void pd_transition_voltage(int idx) { - /* No operation: sink only */ + /* TODO: discharge, PPS */ + switch (idx - 1) { + case PDO_IDX_9V: + board_set_usb_output_voltage(9000); + break; + case PDO_IDX_5V: + default: + board_set_usb_output_voltage(5000); + break; + } } int pd_set_power_supply_ready(int port) { + sy21612_set_sink_mode(1); + sy21612_set_vbus_volt(SY21612_VBUS_9V); + sy21612_set_adc_mode(1); + sy21612_enable_adc(1); + sy21612_set_vbus_discharge(1); return EC_SUCCESS; } void pd_power_supply_reset(int port) { + sy21612_set_sink_mode(0); + sy21612_set_vbus_volt(SY21612_VBUS_9V); + sy21612_set_adc_mode(1); + sy21612_enable_adc(1); + sy21612_set_vbus_discharge(1); } int pd_snk_is_vbus_provided(int port) @@ -82,21 +115,26 @@ int pd_check_power_swap(int port) int pd_check_data_swap(int port, int data_role) { - /* Always refuse data swap */ - return 0; + /* We can swap to UFP */ + return data_role == PD_ROLE_DFP; } void pd_execute_data_swap(int port, int data_role) { - /* Do nothing */ + /* TODO: turn on pp5000, pp3300 */ } void pd_check_pr_role(int port, int pr_role, int flags) { + if (pr_role == PD_ROLE_UFP && !gpio_get_level(GPIO_AC_PRESENT_L)) + pd_request_power_swap(port); + } void pd_check_dr_role(int port, int dr_role, int flags) { + if ((flags & PD_FLAGS_PARTNER_DR_DATA) && dr_role == PD_ROLE_DFP) + pd_request_data_swap(port); } /* ----------------- Vendor Defined Messages ------------------ */ const uint32_t vdo_idh = VDO_IDH(0, /* data caps as USB host */ |