aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/usb/host/xhci-dbg.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/host/xhci-dbg.c')
-rw-r--r--drivers/usb/host/xhci-dbg.c261
1 files changed, 0 insertions, 261 deletions
diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c
index 584d7b9a3683..386abf26641d 100644
--- a/drivers/usb/host/xhci-dbg.c
+++ b/drivers/usb/host/xhci-dbg.c
@@ -10,267 +10,6 @@
#include "xhci.h"
-#define XHCI_INIT_VALUE 0x0
-
-/* Add verbose debugging later, just print everything for now */
-
-void xhci_dbg_regs(struct xhci_hcd *xhci)
-{
- u32 temp;
-
- xhci_dbg(xhci, "// xHCI capability registers at %p:\n",
- xhci->cap_regs);
- temp = readl(&xhci->cap_regs->hc_capbase);
- xhci_dbg(xhci, "// @%p = 0x%x (CAPLENGTH AND HCIVERSION)\n",
- &xhci->cap_regs->hc_capbase, temp);
- xhci_dbg(xhci, "// CAPLENGTH: 0x%x\n",
- (unsigned int) HC_LENGTH(temp));
- xhci_dbg(xhci, "// HCIVERSION: 0x%x\n",
- (unsigned int) HC_VERSION(temp));
-
- xhci_dbg(xhci, "// xHCI operational registers at %p:\n", xhci->op_regs);
-
- temp = readl(&xhci->cap_regs->run_regs_off);
- xhci_dbg(xhci, "// @%p = 0x%x RTSOFF\n",
- &xhci->cap_regs->run_regs_off,
- (unsigned int) temp & RTSOFF_MASK);
- xhci_dbg(xhci, "// xHCI runtime registers at %p:\n", xhci->run_regs);
-
- temp = readl(&xhci->cap_regs->db_off);
- xhci_dbg(xhci, "// @%p = 0x%x DBOFF\n", &xhci->cap_regs->db_off, temp);
- xhci_dbg(xhci, "// Doorbell array at %p:\n", xhci->dba);
-}
-
-static void xhci_print_cap_regs(struct xhci_hcd *xhci)
-{
- u32 temp;
- u32 hci_version;
-
- xhci_dbg(xhci, "xHCI capability registers at %p:\n", xhci->cap_regs);
-
- temp = readl(&xhci->cap_regs->hc_capbase);
- hci_version = HC_VERSION(temp);
- xhci_dbg(xhci, "CAPLENGTH AND HCIVERSION 0x%x:\n",
- (unsigned int) temp);
- xhci_dbg(xhci, "CAPLENGTH: 0x%x\n",
- (unsigned int) HC_LENGTH(temp));
- xhci_dbg(xhci, "HCIVERSION: 0x%x\n", hci_version);
-
- temp = readl(&xhci->cap_regs->hcs_params1);
- xhci_dbg(xhci, "HCSPARAMS 1: 0x%x\n",
- (unsigned int) temp);
- xhci_dbg(xhci, " Max device slots: %u\n",
- (unsigned int) HCS_MAX_SLOTS(temp));
- xhci_dbg(xhci, " Max interrupters: %u\n",
- (unsigned int) HCS_MAX_INTRS(temp));
- xhci_dbg(xhci, " Max ports: %u\n",
- (unsigned int) HCS_MAX_PORTS(temp));
-
- temp = readl(&xhci->cap_regs->hcs_params2);
- xhci_dbg(xhci, "HCSPARAMS 2: 0x%x\n",
- (unsigned int) temp);
- xhci_dbg(xhci, " Isoc scheduling threshold: %u\n",
- (unsigned int) HCS_IST(temp));
- xhci_dbg(xhci, " Maximum allowed segments in event ring: %u\n",
- (unsigned int) HCS_ERST_MAX(temp));
-
- temp = readl(&xhci->cap_regs->hcs_params3);
- xhci_dbg(xhci, "HCSPARAMS 3 0x%x:\n",
- (unsigned int) temp);
- xhci_dbg(xhci, " Worst case U1 device exit latency: %u\n",
- (unsigned int) HCS_U1_LATENCY(temp));
- xhci_dbg(xhci, " Worst case U2 device exit latency: %u\n",
- (unsigned int) HCS_U2_LATENCY(temp));
-
- temp = readl(&xhci->cap_regs->hcc_params);
- xhci_dbg(xhci, "HCC PARAMS 0x%x:\n", (unsigned int) temp);
- xhci_dbg(xhci, " HC generates %s bit addresses\n",
- HCC_64BIT_ADDR(temp) ? "64" : "32");
- xhci_dbg(xhci, " HC %s Contiguous Frame ID Capability\n",
- HCC_CFC(temp) ? "has" : "hasn't");
- xhci_dbg(xhci, " HC %s generate Stopped - Short Package event\n",
- HCC_SPC(temp) ? "can" : "can't");
- /* FIXME */
- xhci_dbg(xhci, " FIXME: more HCCPARAMS debugging\n");
-
- temp = readl(&xhci->cap_regs->run_regs_off);
- xhci_dbg(xhci, "RTSOFF 0x%x:\n", temp & RTSOFF_MASK);
-
- /* xhci 1.1 controllers have the HCCPARAMS2 register */
- if (hci_version > 0x100) {
- temp = readl(&xhci->cap_regs->hcc_params2);
- xhci_dbg(xhci, "HCC PARAMS2 0x%x:\n", (unsigned int) temp);
- xhci_dbg(xhci, " HC %s Force save context capability",
- HCC2_FSC(temp) ? "supports" : "doesn't support");
- xhci_dbg(xhci, " HC %s Large ESIT Payload Capability",
- HCC2_LEC(temp) ? "supports" : "doesn't support");
- xhci_dbg(xhci, " HC %s Extended TBC capability",
- HCC2_ETC(temp) ? "supports" : "doesn't support");
- }
-}
-
-static void xhci_print_command_reg(struct xhci_hcd *xhci)
-{
- u32 temp;
-
- temp = readl(&xhci->op_regs->command);
- xhci_dbg(xhci, "USBCMD 0x%x:\n", temp);
- xhci_dbg(xhci, " HC is %s\n",
- (temp & CMD_RUN) ? "running" : "being stopped");
- xhci_dbg(xhci, " HC has %sfinished hard reset\n",
- (temp & CMD_RESET) ? "not " : "");
- xhci_dbg(xhci, " Event Interrupts %s\n",
- (temp & CMD_EIE) ? "enabled " : "disabled");
- xhci_dbg(xhci, " Host System Error Interrupts %s\n",
- (temp & CMD_HSEIE) ? "enabled " : "disabled");
- xhci_dbg(xhci, " HC has %sfinished light reset\n",
- (temp & CMD_LRESET) ? "not " : "");
-}
-
-static void xhci_print_status(struct xhci_hcd *xhci)
-{
- u32 temp;
-
- temp = readl(&xhci->op_regs->status);
- xhci_dbg(xhci, "USBSTS 0x%x:\n", temp);
- xhci_dbg(xhci, " Event ring is %sempty\n",
- (temp & STS_EINT) ? "not " : "");
- xhci_dbg(xhci, " %sHost System Error\n",
- (temp & STS_FATAL) ? "WARNING: " : "No ");
- xhci_dbg(xhci, " HC is %s\n",
- (temp & STS_HALT) ? "halted" : "running");
-}
-
-static void xhci_print_op_regs(struct xhci_hcd *xhci)
-{
- xhci_dbg(xhci, "xHCI operational registers at %p:\n", xhci->op_regs);
- xhci_print_command_reg(xhci);
- xhci_print_status(xhci);
-}
-
-static void xhci_print_ports(struct xhci_hcd *xhci)
-{
- __le32 __iomem *addr;
- int i, j;
- int ports;
- char *names[NUM_PORT_REGS] = {
- "status",
- "power",
- "link",
- "reserved",
- };
-
- ports = HCS_MAX_PORTS(xhci->hcs_params1);
- addr = &xhci->op_regs->port_status_base;
- for (i = 0; i < ports; i++) {
- for (j = 0; j < NUM_PORT_REGS; j++) {
- xhci_dbg(xhci, "%p port %s reg = 0x%x\n",
- addr, names[j],
- (unsigned int) readl(addr));
- addr++;
- }
- }
-}
-
-void xhci_print_ir_set(struct xhci_hcd *xhci, int set_num)
-{
- struct xhci_intr_reg __iomem *ir_set = &xhci->run_regs->ir_set[set_num];
- void __iomem *addr;
- u32 temp;
- u64 temp_64;
-
- addr = &ir_set->irq_pending;
- temp = readl(addr);
- if (temp == XHCI_INIT_VALUE)
- return;
-
- xhci_dbg(xhci, " %p: ir_set[%i]\n", ir_set, set_num);
-
- xhci_dbg(xhci, " %p: ir_set.pending = 0x%x\n", addr,
- (unsigned int)temp);
-
- addr = &ir_set->irq_control;
- temp = readl(addr);
- xhci_dbg(xhci, " %p: ir_set.control = 0x%x\n", addr,
- (unsigned int)temp);
-
- addr = &ir_set->erst_size;
- temp = readl(addr);
- xhci_dbg(xhci, " %p: ir_set.erst_size = 0x%x\n", addr,
- (unsigned int)temp);
-
- addr = &ir_set->rsvd;
- temp = readl(addr);
- if (temp != XHCI_INIT_VALUE)
- xhci_dbg(xhci, " WARN: %p: ir_set.rsvd = 0x%x\n",
- addr, (unsigned int)temp);
-
- addr = &ir_set->erst_base;
- temp_64 = xhci_read_64(xhci, addr);
- xhci_dbg(xhci, " %p: ir_set.erst_base = @%08llx\n",
- addr, temp_64);
-
- addr = &ir_set->erst_dequeue;
- temp_64 = xhci_read_64(xhci, addr);
- xhci_dbg(xhci, " %p: ir_set.erst_dequeue = @%08llx\n",
- addr, temp_64);
-}
-
-void xhci_print_run_regs(struct xhci_hcd *xhci)
-{
- u32 temp;
- int i;
-
- xhci_dbg(xhci, "xHCI runtime registers at %p:\n", xhci->run_regs);
- temp = readl(&xhci->run_regs->microframe_index);
- xhci_dbg(xhci, " %p: Microframe index = 0x%x\n",
- &xhci->run_regs->microframe_index,
- (unsigned int) temp);
- for (i = 0; i < 7; i++) {
- temp = readl(&xhci->run_regs->rsvd[i]);
- if (temp != XHCI_INIT_VALUE)
- xhci_dbg(xhci, " WARN: %p: Rsvd[%i] = 0x%x\n",
- &xhci->run_regs->rsvd[i],
- i, (unsigned int) temp);
- }
-}
-
-void xhci_print_registers(struct xhci_hcd *xhci)
-{
- xhci_print_cap_regs(xhci);
- xhci_print_op_regs(xhci);
- xhci_print_ports(xhci);
-}
-
-void xhci_dbg_erst(struct xhci_hcd *xhci, struct xhci_erst *erst)
-{
- u64 addr = erst->erst_dma_addr;
- int i;
- struct xhci_erst_entry *entry;
-
- for (i = 0; i < erst->num_entries; i++) {
- entry = &erst->entries[i];
- xhci_dbg(xhci, "@%016llx %08x %08x %08x %08x\n",
- addr,
- lower_32_bits(le64_to_cpu(entry->seg_addr)),
- upper_32_bits(le64_to_cpu(entry->seg_addr)),
- le32_to_cpu(entry->seg_size),
- le32_to_cpu(entry->rsvd));
- addr += sizeof(*entry);
- }
-}
-
-void xhci_dbg_cmd_ptrs(struct xhci_hcd *xhci)
-{
- u64 val;
-
- val = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
- xhci_dbg(xhci, "// xHC command ring deq ptr low bits + flags = @%08x\n",
- lower_32_bits(val));
- xhci_dbg(xhci, "// xHC command ring deq ptr high bits = @%08x\n",
- upper_32_bits(val));
-}
-
char *xhci_get_slot_state(struct xhci_hcd *xhci,
struct xhci_container_ctx *ctx)
{
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.