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https://github.com/Telecominfraproject/OpenCellular.git
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755517e2cf
The PPC needs to update its Vbus source current limits whenever our policy changes on the PD ports. This commit simply adds and API to do so. BUG=None BRANCH=None TEST=With some extra code to enable 3A out, flash zoombini; Plug in a PD device to a port, verify that it gets 5V @ 3A. Plug in a second device, verify that we re-send new source caps of 5V @ 1.5A. TEST=Repeat above for meowth. Change-Id: Ifa4bc8b7df87f7730f2bcded842906d43171394b Signed-off-by: Aseda Aboagye <aaboagye@google.com> Reviewed-on: https://chromium-review.googlesource.com/818335 Commit-Ready: Aseda Aboagye <aaboagye@chromium.org> Tested-by: Aseda Aboagye <aaboagye@chromium.org> Reviewed-by: Shawn N <shawnn@chromium.org>
95 lines
2.2 KiB
C
95 lines
2.2 KiB
C
/* Copyright 2017 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* USB-C Power Path Controller Common Code */
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#include "common.h"
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#include "console.h"
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#include "hooks.h"
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#include "usbc_ppc.h"
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#include "util.h"
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#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
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#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
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/* Simple wrappers to dispatch to the drivers. */
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int ppc_is_sourcing_vbus(int port)
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{
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if ((port < 0) || (port >= ppc_cnt)) {
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CPRINTS("%s(%d) Invalid port!", __func__, port);
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return 0;
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}
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return ppc_chips[port].drv->is_sourcing_vbus(port);
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}
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int ppc_set_vbus_source_current_limit(int port, enum tcpc_rp_value rp)
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{
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if ((port < 0) || (port >= ppc_cnt))
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return EC_ERROR_INVAL;
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return ppc_chips[port].drv->set_vbus_source_current_limit(port, rp);
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}
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int ppc_vbus_sink_enable(int port, int enable)
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{
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if ((port < 0) || (port >= ppc_cnt))
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return EC_ERROR_INVAL;
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return ppc_chips[port].drv->vbus_sink_enable(port, enable);
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}
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int ppc_vbus_source_enable(int port, int enable)
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{
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if ((port < 0) || (port >= ppc_cnt))
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return EC_ERROR_INVAL;
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return ppc_chips[port].drv->vbus_source_enable(port, enable);
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}
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#ifdef CONFIG_USB_PD_VBUS_DETECT_PPC
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int ppc_is_vbus_present(int port, int *vbus_present)
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{
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if (port >= ppc_cnt)
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return EC_ERROR_INVAL;
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return ppc_chips[port].drv->is_vbus_present(port, vbus_present);
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}
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#endif /* defined(CONFIG_USB_PD_VBUS_DETECT_PPC) */
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static void ppc_init(void)
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{
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int i;
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int rv;
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for (i = 0; i < ppc_cnt; i++) {
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rv = ppc_chips[i].drv->init(i);
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if (rv)
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CPRINTS("p%d: PPC init failed! (%d)", i, rv);
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else
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CPRINTS("p%d: PPC init'd.", i);
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}
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}
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DECLARE_HOOK(HOOK_INIT, ppc_init, HOOK_PRIO_INIT_I2C + 1);
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#ifdef CONFIG_CMD_PPC_DUMP
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static int command_ppc_dump(int argc, char **argv)
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{
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int port;
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if (argc < 2)
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return EC_ERROR_PARAM_COUNT;
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port = atoi(argv[1]);
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if (port >= ppc_cnt)
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return EC_ERROR_PARAM1;
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return ppc_chips[port].drv->reg_dump(port);
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}
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DECLARE_CONSOLE_COMMAND(ppc_dump, command_ppc_dump, "<Type-C port>",
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"dump the PPC regs");
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#endif /* defined(CONFIG_CMD_PPC_DUMP) */
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