/* * Thunderbolt driver - NHI registers * * Copyright (c) 2014 Andreas Noever */ #ifndef NHI_REGS_H_ #define NHI_REGS_H_ #include enum ring_flags { RING_FLAG_ISOCH_ENABLE = 1 << 27, /* TX only? */ RING_FLAG_E2E_FLOW_CONTROL = 1 << 28, RING_FLAG_PCI_NO_SNOOP = 1 << 29, RING_FLAG_RAW = 1 << 30, /* ignore EOF/SOF mask, include checksum */ RING_FLAG_ENABLE = 1 << 31, }; enum ring_desc_flags { RING_DESC_ISOCH = 0x1, /* TX only? */ RING_DESC_COMPLETED = 0x2, /* set by NHI */ RING_DESC_POSTED = 0x4, /* always set this */ RING_DESC_INTERRUPT = 0x8, /* request an interrupt on completion */ }; /** * struct ring_desc - TX/RX ring entry * * For TX set length/eof/sof. * For RX length/eof/sof are set by the NHI. */ struct ring_desc { u64 phys; u32 length:12; u32 eof:4; u32 sof:4; enum ring_desc_flags flags:12; u32 time; /* write zero */ } __packed; /* NHI registers in bar 0 */ /* * 16 bytes per entry, one entry for every hop (REG_HOP_COUNT) * 00: physical pointer to an array of struct ring_desc * 08: ring tail (set by NHI) * 10: ring head (index of first non posted descriptor) * 12: descriptor count */ #define REG_TX_RING_BASE 0x00000 /* * 16 bytes per entry, one entry for every hop (REG_HOP_COUNT) * 00: physical pointer to an array of struct ring_desc * 08: ring head (index of first not posted descriptor) * 10: ring tail (set by NHI) * 12: descriptor count * 14: max frame sizes (anything larger than 0x100 has no effect) */ #define REG_RX_RING_BASE 0x08000 /* * 32 bytes per entry, one entry for every hop (REG_HOP_COUNT) * 00: enum_ring_flags * 04: isoch time stamp ?? (write 0) * ..: unknown */ #define REG_TX_OPTIONS_BASE 0x19800 /* * 32 bytes per entry, one entry for every hop (REG_HOP_COUNT) * 00: enum ring_flags * If RING_FLAG_E2E_FLOW_CONTROL is set then bits 13-23 must be set to * the corresponding TX hop id. * 04: EOF/SOF mask (ignored for RING_FLAG_RAW rings) * ..: unknown */ #define REG_RX_OPTIONS_BASE 0x29800 /* * three bitfields: tx, rx, rx overflow * Every bitfield contains one bit for every hop (REG_HOP_COUNT). Registers are * cleared on read. New interrupts are fired only after ALL registers have been * read (even those containing only disabled rings). */ #define REG_RING_NOTIFY_BASE 0x37800 #define RING_NOTIFY_REG_COUNT(nhi) ((31 + 3 * nhi->hop_count) / 32) /* * two bitfields: rx, tx * Both bitfields contains one bit for every hop (REG_HOP_COUNT). To * enable/disable interrupts set/clear the corresponding bits. */ #define REG_RING_INTERRUPT_BASE 0x38200 #define RING_INTERRUPT_REG_COUNT(nhi) ((31 + 2 * nhi->hop_count) / 32) /* The last 11 bits contain the number of hops supported by the NHI port. */ #define REG_HOP_COUNT 0x39640 #endif a'>root/drivers/usb/serial/console.c
diff options
context:
space:
mode:
authorLukáš Lalinský <lukas@oxygene.sk>2017-01-20 19:46:34 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-25 11:02:29 +0100
commitd9b2997e4a0a874e452df7cdd7de5a54502bd0aa (patch)
tree391abd808c8ad3d2e0e2ac0b769e40d88b468973 /drivers/usb/serial/console.c
parent3ba7b7795b7e8889af1377904c55c7fae9e0c775 (diff)
USB: Add quirk for WORLDE easykey.25 MIDI keyboard
Add a quirk for WORLDE easykey.25 MIDI keyboard (idVendor=0218, idProduct=0401). The device reports that it has config string descriptor at index 3, but when the system selects the configuration and tries to get the description, it returns a -EPROTO error, the communication restarts and this keeps repeating over and over again. Not requesting the string descriptor makes the device work correctly. Relevant info from Wireshark: [...] CONFIGURATION DESCRIPTOR bLength: 9 bDescriptorType: 0x02 (CONFIGURATION) wTotalLength: 101 bNumInterfaces: 2 bConfigurationValue: 1 iConfiguration: 3 Configuration bmAttributes: 0xc0 SELF-POWERED NO REMOTE-WAKEUP 1... .... = Must be 1: Must be 1 for USB 1.1 and higher .1.. .... = Self-Powered: This device is SELF-POWERED ..0. .... = Remote Wakeup: This device does NOT support remote wakeup bMaxPower: 50 (100mA) [...] 45 0.369104 host 2.38.0 USB 64 GET DESCRIPTOR Request STRING [...] URB setup bmRequestType: 0x80 1... .... = Direction: Device-to-host .00. .... = Type: Standard (0x00) ...0 0000 = Recipient: Device (0x00) bRequest: GET DESCRIPTOR (6) Descriptor Index: 0x03 bDescriptorType: 0x03 Language Id: English (United States) (0x0409) wLength: 255 46 0.369255 2.38.0 host USB 64 GET DESCRIPTOR Response STRING[Malformed Packet] [...] Frame 46: 64 bytes on wire (512 bits), 64 bytes captured (512 bits) on interface 0 USB URB [Source: 2.38.0] [Destination: host] URB id: 0xffff88021f62d480 URB type: URB_COMPLETE ('C') URB transfer type: URB_CONTROL (0x02) Endpoint: 0x80, Direction: IN Device: 38 URB bus id: 2 Device setup request: not relevant ('-') Data: present (0) URB sec: 1484896277 URB usec: 455031 URB status: Protocol error (-EPROTO) (-71) URB length [bytes]: 0 Data length [bytes]: 0 [Request in: 45] [Time from request: 0.000151000 seconds] Unused Setup Header Interval: 0 Start frame: 0 Copy of Transfer Flags: 0x00000200 Number of ISO descriptors: 0 [Malformed Packet: USB] [Expert Info (Error/Malformed): Malformed Packet (Exception occurred)] [Malformed Packet (Exception occurred)] [Severity level: Error] [Group: Malformed] Signed-off-by: Lukáš Lalinský <lukas@oxygene.sk> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/serial/console.c')