diff options
Diffstat (limited to 'board/twinkie/usb_pd_policy.c')
-rw-r--r-- | board/twinkie/usb_pd_policy.c | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/board/twinkie/usb_pd_policy.c b/board/twinkie/usb_pd_policy.c index 2ba6a21538..4d568aff83 100644 --- a/board/twinkie/usb_pd_policy.c +++ b/board/twinkie/usb_pd_policy.c @@ -17,11 +17,6 @@ #define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args) #define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args) -/* Define typical operating power and max power */ -#define OPERATING_POWER_MW 15000 -#define MAX_POWER_MW 60000 -#define MAX_CURRENT_MA 3000 - #define PDO_FIXED_FLAGS (PDO_FIXED_EXTERNAL | PDO_FIXED_DATA_SWAP) const uint32_t pd_src_pdo[] = { @@ -38,68 +33,6 @@ const uint32_t pd_snk_pdo[] = { }; const int pd_snk_pdo_cnt = ARRAY_SIZE(pd_snk_pdo); -/* Cap on the max voltage requested as a sink (in millivolts) */ -static unsigned max_mv = -1; /* no cap */ - -int pd_choose_voltage(int cnt, uint32_t *src_caps, uint32_t *rdo, - uint32_t *curr_limit, uint32_t *supply_voltage) -{ - int i; - int sel_mv; - int max_uw = 0; - int max_ma; - int max_i = -1; - int max; - uint32_t flags; - - /* Get max power */ - for (i = 0; i < cnt; i++) { - int uw; - int mv = ((src_caps[i] >> 10) & 0x3FF) * 50; - if ((src_caps[i] & PDO_TYPE_MASK) == PDO_TYPE_BATTERY) { - uw = 250000 * (src_caps[i] & 0x3FF); - } else { - int ma = (src_caps[i] & 0x3FF) * 10; - uw = ma * mv; - } - if ((uw > max_uw) && (mv <= max_mv)) { - max_i = i; - max_uw = uw; - sel_mv = mv; - } - } - if (max_i < 0) - return -EC_ERROR_UNKNOWN; - - /* build rdo for desired power */ - if ((src_caps[max_i] & PDO_TYPE_MASK) == PDO_TYPE_BATTERY) { - int uw = 250000 * (src_caps[max_i] & 0x3FF); - max = MIN(1000 * uw, MAX_POWER_MW); - flags = (max < OPERATING_POWER_MW) ? RDO_CAP_MISMATCH : 0; - max_ma = 1000 * max / sel_mv; - *rdo = RDO_BATT(max_i + 1, max, max, flags); - CPRINTF("Request [%d] %dV %dmW", - max_i, sel_mv/1000, max); - } else { - int ma = 10 * (src_caps[max_i] & 0x3FF); - max = MIN(ma, MAX_CURRENT_MA); - flags = (max * sel_mv) < (1000 * OPERATING_POWER_MW) ? - RDO_CAP_MISMATCH : 0; - max_ma = max; - *rdo = RDO_FIXED(max_i + 1, max, max, flags); - CPRINTF("Request [%d] %dV %dmA", - max_i, sel_mv/1000, max); - } - /* Mismatch bit set if less power offered than the operating power */ - if (flags & RDO_CAP_MISMATCH) - CPRINTF(" Mismatch"); - CPRINTF("\n"); - - *curr_limit = max_ma; - *supply_voltage = sel_mv; - return EC_SUCCESS; -} - void pd_set_input_current_limit(int port, uint32_t max_ma, uint32_t supply_voltage) { @@ -111,11 +44,6 @@ void pd_set_input_current_limit(int port, uint32_t max_ma, gpio_set_level(GPIO_LED_B_L, !blue); } -void pd_set_max_voltage(unsigned mv) -{ - max_mv = mv; -} - int pd_check_requested_voltage(uint32_t rdo) { int max_ma = rdo & 0x3FF; |