diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2021-04-01 16:54:15 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2021-05-31 14:37:48 +0300 |
| commit | 9b383037770fcd6b03dd3793c89055b8490957e0 (patch) | |
| tree | ecc09be0875274d4126e978b0cc76a0160f3788b /drivers/thunderbolt/tb.h | |
| parent | fe6f6f95919ccdc8a3e2c5dae9b1740583e16523 (diff) | |
thunderbolt: Split NVM read/write generic functions out from usb4.c
We do this for Thunderbolt 2/3 devices through DMA port, USB4 devices
and retimers pretty much the same way. Only the actual block read/write
is different. For this reason split out the NVM read/write functions
from usb4.c to nvm.c and make USB4 device code call these when needed.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt/tb.h')
| -rw-r--r-- | drivers/thunderbolt/tb.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index 9790e9f13d2b..d9d1adc4cfd3 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -20,6 +20,7 @@ #define NVM_MIN_SIZE SZ_32K #define NVM_MAX_SIZE SZ_512K +#define NVM_DATA_DWORDS 16 /* Intel specific NVM offsets */ #define NVM_DEVID 0x05 @@ -674,6 +675,16 @@ int tb_nvm_add_non_active(struct tb_nvm *nvm, size_t size, void tb_nvm_free(struct tb_nvm *nvm); void tb_nvm_exit(void); +typedef int (*read_block_fn)(void *, unsigned int, void *, size_t); +typedef int (*write_block_fn)(void *, unsigned int, const void *, size_t); + +int tb_nvm_read_data(unsigned int address, void *buf, size_t size, + unsigned int retries, read_block_fn read_block, + void *read_block_data); +int tb_nvm_write_data(unsigned int address, const void *buf, size_t size, + unsigned int retries, write_block_fn write_next_block, + void *write_block_data); + struct tb_switch *tb_switch_alloc(struct tb *tb, struct device *parent, u64 route); struct tb_switch *tb_switch_alloc_safe_mode(struct tb *tb, |