^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * mtu3_debugfs.c - debugfs interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2019 MediaTek Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include "mtu3.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "mtu3_dr.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "mtu3_debug.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define dump_register(nm) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) .name = __stringify(nm), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) .offset = U3D_ ##nm, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define dump_prb_reg(nm, os) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) .name = nm, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) .offset = os, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static const struct debugfs_reg32 mtu3_ippc_regs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) dump_register(SSUSB_IP_PW_CTRL0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) dump_register(SSUSB_IP_PW_CTRL1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) dump_register(SSUSB_IP_PW_CTRL2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) dump_register(SSUSB_IP_PW_CTRL3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) dump_register(SSUSB_OTG_STS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) dump_register(SSUSB_IP_XHCI_CAP),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) dump_register(SSUSB_IP_DEV_CAP),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) dump_register(SSUSB_U3_CTRL_0P),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) dump_register(SSUSB_U2_CTRL_0P),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) dump_register(SSUSB_HW_ID),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) dump_register(SSUSB_HW_SUB_ID),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) dump_register(SSUSB_IP_SPARE0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static const struct debugfs_reg32 mtu3_dev_regs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) dump_register(LV1ISR),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) dump_register(LV1IER),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) dump_register(EPISR),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) dump_register(EPIER),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) dump_register(EP0CSR),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) dump_register(RXCOUNT0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) dump_register(QISAR0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) dump_register(QIER0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) dump_register(QISAR1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) dump_register(QIER1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) dump_register(CAP_EPNTXFFSZ),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) dump_register(CAP_EPNRXFFSZ),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) dump_register(CAP_EPINFO),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) dump_register(MISC_CTRL),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static const struct debugfs_reg32 mtu3_csr_regs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) dump_register(DEVICE_CONF),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) dump_register(DEV_LINK_INTR_ENABLE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) dump_register(DEV_LINK_INTR),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) dump_register(LTSSM_CTRL),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) dump_register(USB3_CONFIG),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) dump_register(LINK_STATE_MACHINE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) dump_register(LTSSM_INTR_ENABLE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) dump_register(LTSSM_INTR),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) dump_register(U3U2_SWITCH_CTRL),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) dump_register(POWER_MANAGEMENT),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) dump_register(DEVICE_CONTROL),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) dump_register(COMMON_USB_INTR_ENABLE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) dump_register(COMMON_USB_INTR),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) dump_register(USB20_MISC_CONTROL),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) dump_register(USB20_OPSTATE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) static int mtu3_link_state_show(struct seq_file *sf, void *unused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) struct mtu3 *mtu = sf->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) void __iomem *mbase = mtu->mac_base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) seq_printf(sf, "opstate: %#x, ltssm: %#x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) mtu3_readl(mbase, U3D_USB20_OPSTATE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) LTSSM_STATE(mtu3_readl(mbase, U3D_LINK_STATE_MACHINE)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) static int mtu3_ep_used_show(struct seq_file *sf, void *unused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) struct mtu3 *mtu = sf->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) struct mtu3_ep *mep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) int used = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) spin_lock_irqsave(&mtu->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) for (i = 0; i < mtu->num_eps; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) mep = mtu->in_eps + i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) if (mep->flags & MTU3_EP_ENABLED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) seq_printf(sf, "%s - type: %d\n", mep->name, mep->type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) used++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) mep = mtu->out_eps + i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) if (mep->flags & MTU3_EP_ENABLED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) seq_printf(sf, "%s - type: %d\n", mep->name, mep->type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) used++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) seq_printf(sf, "total used: %d eps\n", used);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) spin_unlock_irqrestore(&mtu->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) DEFINE_SHOW_ATTRIBUTE(mtu3_link_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) DEFINE_SHOW_ATTRIBUTE(mtu3_ep_used);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) static void mtu3_debugfs_regset(struct mtu3 *mtu, void __iomem *base,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) const struct debugfs_reg32 *regs, size_t nregs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) const char *name, struct dentry *parent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) struct debugfs_regset32 *regset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct mtu3_regset *mregs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) mregs = devm_kzalloc(mtu->dev, sizeof(*mregs), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) if (!mregs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) sprintf(mregs->name, "%s", name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) regset = &mregs->regset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) regset->regs = regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) regset->nregs = nregs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) regset->base = base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) debugfs_create_regset32(mregs->name, 0444, parent, regset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) static void mtu3_debugfs_ep_regset(struct mtu3 *mtu, struct mtu3_ep *mep,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) struct dentry *parent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) struct debugfs_reg32 *regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) int epnum = mep->epnum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) int in = mep->is_in;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) regs = devm_kcalloc(mtu->dev, 7, sizeof(*regs), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) if (!regs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) regs[0].name = in ? "TCR0" : "RCR0";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) regs[0].offset = in ? MU3D_EP_TXCR0(epnum) : MU3D_EP_RXCR0(epnum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) regs[1].name = in ? "TCR1" : "RCR1";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) regs[1].offset = in ? MU3D_EP_TXCR1(epnum) : MU3D_EP_RXCR1(epnum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) regs[2].name = in ? "TCR2" : "RCR2";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) regs[2].offset = in ? MU3D_EP_TXCR2(epnum) : MU3D_EP_RXCR2(epnum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) regs[3].name = in ? "TQHIAR" : "RQHIAR";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) regs[3].offset = in ? USB_QMU_TQHIAR(epnum) : USB_QMU_RQHIAR(epnum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) regs[4].name = in ? "TQCSR" : "RQCSR";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) regs[4].offset = in ? USB_QMU_TQCSR(epnum) : USB_QMU_RQCSR(epnum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) regs[5].name = in ? "TQSAR" : "RQSAR";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) regs[5].offset = in ? USB_QMU_TQSAR(epnum) : USB_QMU_RQSAR(epnum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) regs[6].name = in ? "TQCPR" : "RQCPR";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) regs[6].offset = in ? USB_QMU_TQCPR(epnum) : USB_QMU_RQCPR(epnum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) mtu3_debugfs_regset(mtu, mtu->mac_base, regs, 7, "ep-regs", parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) static int mtu3_ep_info_show(struct seq_file *sf, void *unused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) struct mtu3_ep *mep = sf->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) struct mtu3 *mtu = mep->mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) spin_lock_irqsave(&mtu->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) seq_printf(sf, "ep - type:%d, maxp:%d, slot:%d, flags:%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) mep->type, mep->maxp, mep->slot, mep->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) spin_unlock_irqrestore(&mtu->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) static int mtu3_fifo_show(struct seq_file *sf, void *unused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) struct mtu3_ep *mep = sf->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) struct mtu3 *mtu = mep->mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) spin_lock_irqsave(&mtu->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) seq_printf(sf, "fifo - seg_size:%d, addr:%d, size:%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) mep->fifo_seg_size, mep->fifo_addr, mep->fifo_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) spin_unlock_irqrestore(&mtu->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) static int mtu3_qmu_ring_show(struct seq_file *sf, void *unused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) struct mtu3_ep *mep = sf->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) struct mtu3 *mtu = mep->mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) struct mtu3_gpd_ring *ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) ring = &mep->gpd_ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) spin_lock_irqsave(&mtu->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) seq_printf(sf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) "qmu-ring - dma:%pad, start:%p, end:%p, enq:%p, dep:%p\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) &ring->dma, ring->start, ring->end,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) ring->enqueue, ring->dequeue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) spin_unlock_irqrestore(&mtu->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) static int mtu3_qmu_gpd_show(struct seq_file *sf, void *unused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) struct mtu3_ep *mep = sf->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) struct mtu3 *mtu = mep->mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) struct mtu3_gpd_ring *ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) struct qmu_gpd *gpd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) dma_addr_t dma;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) spin_lock_irqsave(&mtu->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) ring = &mep->gpd_ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) gpd = ring->start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) if (!gpd || !(mep->flags & MTU3_EP_ENABLED)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) seq_puts(sf, "empty!\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) for (i = 0; i < MAX_GPD_NUM; i++, gpd++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) dma = ring->dma + i * sizeof(*gpd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) seq_printf(sf, "gpd.%03d -> %pad, %p: %08x %08x %08x %08x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) i, &dma, gpd, gpd->dw0_info, gpd->next_gpd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) gpd->buffer, gpd->dw3_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) spin_unlock_irqrestore(&mtu->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) static const struct mtu3_file_map mtu3_ep_files[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) {"ep-info", mtu3_ep_info_show, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) {"fifo", mtu3_fifo_show, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) {"qmu-ring", mtu3_qmu_ring_show, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) {"qmu-gpd", mtu3_qmu_gpd_show, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) static int mtu3_ep_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) const char *file_name = file_dentry(file)->d_iname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) const struct mtu3_file_map *f_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) for (i = 0; i < ARRAY_SIZE(mtu3_ep_files); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) f_map = &mtu3_ep_files[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) if (strcmp(f_map->name, file_name) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) return single_open(file, f_map->show, inode->i_private);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) static const struct file_operations mtu3_ep_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) .open = mtu3_ep_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) .read = seq_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) .llseek = seq_lseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) .release = single_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) static const struct debugfs_reg32 mtu3_prb_regs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) dump_prb_reg("enable", U3D_SSUSB_PRB_CTRL0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) dump_prb_reg("byte-sell", U3D_SSUSB_PRB_CTRL1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) dump_prb_reg("byte-selh", U3D_SSUSB_PRB_CTRL2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) dump_prb_reg("module-sel", U3D_SSUSB_PRB_CTRL3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) dump_prb_reg("sw-out", U3D_SSUSB_PRB_CTRL4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) dump_prb_reg("data", U3D_SSUSB_PRB_CTRL5),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) static int mtu3_probe_show(struct seq_file *sf, void *unused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) const char *file_name = file_dentry(sf->file)->d_iname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) struct mtu3 *mtu = sf->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) const struct debugfs_reg32 *regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) for (i = 0; i < ARRAY_SIZE(mtu3_prb_regs); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) regs = &mtu3_prb_regs[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) if (strcmp(regs->name, file_name) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) seq_printf(sf, "0x%04x - 0x%08x\n", (u32)regs->offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) mtu3_readl(mtu->ippc_base, (u32)regs->offset));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) static int mtu3_probe_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) return single_open(file, mtu3_probe_show, inode->i_private);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) static ssize_t mtu3_probe_write(struct file *file, const char __user *ubuf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) size_t count, loff_t *ppos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) const char *file_name = file_dentry(file)->d_iname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) struct seq_file *sf = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) struct mtu3 *mtu = sf->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) const struct debugfs_reg32 *regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) char buf[32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) u32 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) if (kstrtou32(buf, 0, &val))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) for (i = 0; i < ARRAY_SIZE(mtu3_prb_regs); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) regs = &mtu3_prb_regs[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) if (strcmp(regs->name, file_name) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) mtu3_writel(mtu->ippc_base, (u32)regs->offset, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) static const struct file_operations mtu3_probe_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) .open = mtu3_probe_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) .write = mtu3_probe_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) .read = seq_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) .llseek = seq_lseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) .release = single_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) static void mtu3_debugfs_create_prb_files(struct mtu3 *mtu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) struct ssusb_mtk *ssusb = mtu->ssusb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) const struct debugfs_reg32 *regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) struct dentry *dir_prb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) dir_prb = debugfs_create_dir("probe", ssusb->dbgfs_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) for (i = 0; i < ARRAY_SIZE(mtu3_prb_regs); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) regs = &mtu3_prb_regs[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) debugfs_create_file(regs->name, 0644, dir_prb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) mtu, &mtu3_probe_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) mtu3_debugfs_regset(mtu, mtu->ippc_base, mtu3_prb_regs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) ARRAY_SIZE(mtu3_prb_regs), "regs", dir_prb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) static void mtu3_debugfs_create_ep_dir(struct mtu3_ep *mep,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) struct dentry *parent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) const struct mtu3_file_map *files;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) struct dentry *dir_ep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) dir_ep = debugfs_create_dir(mep->name, parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) mtu3_debugfs_ep_regset(mep->mtu, mep, dir_ep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) for (i = 0; i < ARRAY_SIZE(mtu3_ep_files); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) files = &mtu3_ep_files[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) debugfs_create_file(files->name, 0444, dir_ep,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) mep, &mtu3_ep_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) static void mtu3_debugfs_create_ep_dirs(struct mtu3 *mtu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) struct ssusb_mtk *ssusb = mtu->ssusb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) struct dentry *dir_eps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) dir_eps = debugfs_create_dir("eps", ssusb->dbgfs_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) for (i = 1; i < mtu->num_eps; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) mtu3_debugfs_create_ep_dir(mtu->in_eps + i, dir_eps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) mtu3_debugfs_create_ep_dir(mtu->out_eps + i, dir_eps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) void ssusb_dev_debugfs_init(struct ssusb_mtk *ssusb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) struct mtu3 *mtu = ssusb->u3d;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) struct dentry *dir_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) dir_regs = debugfs_create_dir("regs", ssusb->dbgfs_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) mtu3_debugfs_regset(mtu, mtu->ippc_base,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) mtu3_ippc_regs, ARRAY_SIZE(mtu3_ippc_regs),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) "reg-ippc", dir_regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) mtu3_debugfs_regset(mtu, mtu->mac_base,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) mtu3_dev_regs, ARRAY_SIZE(mtu3_dev_regs),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) "reg-dev", dir_regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) mtu3_debugfs_regset(mtu, mtu->mac_base,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) mtu3_csr_regs, ARRAY_SIZE(mtu3_csr_regs),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) "reg-csr", dir_regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) mtu3_debugfs_create_ep_dirs(mtu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) mtu3_debugfs_create_prb_files(mtu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) debugfs_create_file("link-state", 0444, ssusb->dbgfs_root,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) mtu, &mtu3_link_state_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) debugfs_create_file("ep-used", 0444, ssusb->dbgfs_root,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) mtu, &mtu3_ep_used_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) static int ssusb_mode_show(struct seq_file *sf, void *unused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) struct ssusb_mtk *ssusb = sf->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) seq_printf(sf, "current mode: %s(%s drd)\n(echo device/host)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) ssusb->is_host ? "host" : "device",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) ssusb->otg_switch.manual_drd_enabled ? "manual" : "auto");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) static int ssusb_mode_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) return single_open(file, ssusb_mode_show, inode->i_private);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) static ssize_t ssusb_mode_write(struct file *file, const char __user *ubuf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) size_t count, loff_t *ppos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) struct seq_file *sf = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) struct ssusb_mtk *ssusb = sf->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) char buf[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) if (!strncmp(buf, "host", 4) && !ssusb->is_host) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) ssusb_mode_switch(ssusb, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) } else if (!strncmp(buf, "device", 6) && ssusb->is_host) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) ssusb_mode_switch(ssusb, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) dev_err(ssusb->dev, "wrong or duplicated setting\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) static const struct file_operations ssusb_mode_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) .open = ssusb_mode_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) .write = ssusb_mode_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) .read = seq_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) .llseek = seq_lseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) .release = single_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) static int ssusb_vbus_show(struct seq_file *sf, void *unused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) struct ssusb_mtk *ssusb = sf->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) struct otg_switch_mtk *otg_sx = &ssusb->otg_switch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) seq_printf(sf, "vbus state: %s\n(echo on/off)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) regulator_is_enabled(otg_sx->vbus) ? "on" : "off");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) static int ssusb_vbus_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) return single_open(file, ssusb_vbus_show, inode->i_private);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) static ssize_t ssusb_vbus_write(struct file *file, const char __user *ubuf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) size_t count, loff_t *ppos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) struct seq_file *sf = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) struct ssusb_mtk *ssusb = sf->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) struct otg_switch_mtk *otg_sx = &ssusb->otg_switch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) char buf[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) bool enable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) if (kstrtobool(buf, &enable)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) dev_err(ssusb->dev, "wrong setting\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) ssusb_set_vbus(otg_sx, enable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) static const struct file_operations ssusb_vbus_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) .open = ssusb_vbus_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) .write = ssusb_vbus_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) .read = seq_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) .llseek = seq_lseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) .release = single_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) void ssusb_dr_debugfs_init(struct ssusb_mtk *ssusb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) struct dentry *root = ssusb->dbgfs_root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) debugfs_create_file("mode", 0644, root, ssusb, &ssusb_mode_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) debugfs_create_file("vbus", 0644, root, ssusb, &ssusb_vbus_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) void ssusb_debugfs_create_root(struct ssusb_mtk *ssusb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) ssusb->dbgfs_root =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) debugfs_create_dir(dev_name(ssusb->dev), usb_debug_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) void ssusb_debugfs_remove_root(struct ssusb_mtk *ssusb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) debugfs_remove_recursive(ssusb->dbgfs_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) ssusb->dbgfs_root = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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