orinoco_usb: implement fw download

This involves some refactorring of the common fw download code to
substitute ezusb versions of various functions.

Note that WPA-enabled firmwares (9.xx series) will not work fully with
orinoco_usb yet.

Signed-off-by: David Kilroy <kilroyd@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 9 insertions, 234 deletions

diff --git a/drivers/net/wireless/orinoco/hermes_dld.c b/drivers/net/wireless/orinoco/hermes_dld.c
index 8f22e2026a82..6da85e75fce0 100644
--- a/drivers/net/wireless/orinoco/hermes_dld.c
+++ b/drivers/net/wireless/orinoco/hermes_dld.c
@@ -46,37 +46,11 @@
 
 #define PFX "hermes_dld: "
 
-/*
- * AUX port access.  To unlock the AUX port write the access keys to the
- * PARAM0-2 registers, then write HERMES_AUX_ENABLE to the HERMES_CONTROL
- * register.  Then read it and make sure it's HERMES_AUX_ENABLED.
- */
-#define HERMES_AUX_ENABLE       0x8000  /* Enable auxiliary port access */
-#define HERMES_AUX_DISABLE      0x4000  /* Disable to auxiliary port access */
-#define HERMES_AUX_ENABLED      0xC000  /* Auxiliary port is open */
-#define HERMES_AUX_DISABLED     0x0000  /* Auxiliary port is closed */
-
-#define HERMES_AUX_PW0  0xFE01
-#define HERMES_AUX_PW1  0xDC23
-#define HERMES_AUX_PW2  0xBA45
-
-/* HERMES_CMD_DOWNLD */
-#define HERMES_PROGRAM_DISABLE             (0x0000 | HERMES_CMD_DOWNLD)
-#define HERMES_PROGRAM_ENABLE_VOLATILE     (0x0100 | HERMES_CMD_DOWNLD)
-#define HERMES_PROGRAM_ENABLE_NON_VOLATILE (0x0200 | HERMES_CMD_DOWNLD)
-#define HERMES_PROGRAM_NON_VOLATILE        (0x0300 | HERMES_CMD_DOWNLD)
-
 /* End markers used in dblocks */
 #define PDI_END         0x00000000      /* End of PDA */
 #define BLOCK_END       0xFFFFFFFF      /* Last image block */
 #define TEXT_END        0x1A            /* End of text header */
 
-/* Limit the amout we try to download in a single shot.
- * Size is in bytes.
- */
-#define MAX_DL_SIZE 1024
-#define LIMIT_PROGRAM_SIZE 0
-
 /*
  * The following structures have little-endian fields denoted by
  * the leading underscore.  Don't access them directly - use inline
@@ -165,41 +139,6 @@ pdi_len(const struct pdi *pdi)
         return 2 * (le16_to_cpu(pdi->len) - 1);
 }
 
-/*** Hermes AUX control ***/
-
-static inline void
-hermes_aux_setaddr(hermes_t *hw, u32 addr)
-{
-        hermes_write_reg(hw, HERMES_AUXPAGE, (u16) (addr >> 7));
-        hermes_write_reg(hw, HERMES_AUXOFFSET, (u16) (addr & 0x7F));
-}
-
-static inline int
-hermes_aux_control(hermes_t *hw, int enabled)
-{
-        int desired_state = enabled ? HERMES_AUX_ENABLED : HERMES_AUX_DISABLED;
-        int action = enabled ? HERMES_AUX_ENABLE : HERMES_AUX_DISABLE;
-        int i;
-
-        /* Already open? */
-        if (hermes_read_reg(hw, HERMES_CONTROL) == desired_state)
-                return 0;
-
-        hermes_write_reg(hw, HERMES_PARAM0, HERMES_AUX_PW0);
-        hermes_write_reg(hw, HERMES_PARAM1, HERMES_AUX_PW1);
-        hermes_write_reg(hw, HERMES_PARAM2, HERMES_AUX_PW2);
-        hermes_write_reg(hw, HERMES_CONTROL, action);
-
-        for (i = 0; i < 20; i++) {
-                udelay(10);
-                if (hermes_read_reg(hw, HERMES_CONTROL) ==
-                    desired_state)
-                        return 0;
-        }
-
-        return -EBUSY;
-}
-
 /*** Plug Data Functions ***/
 
 /*
@@ -271,62 +210,7 @@ hermes_plug_pdi(hermes_t *hw, const struct pdr *first_pdr,
                 return -EINVAL;
 
         /* do the actual plugging */
-        hermes_aux_setaddr(hw, pdr_addr(pdr));
-        hermes_write_bytes(hw, HERMES_AUXDATA, pdi->data, pdi_len(pdi));
-
-        return 0;
-}
-
-/* Read PDA from the adapter */
-int hermes_read_pda(hermes_t *hw,
-                    __le16 *pda,
-                    u32 pda_addr,
-                    u16 pda_len,
-                    int use_eeprom) /* can we get this into hw? */
-{
-        int ret;
-        u16 pda_size;
-        u16 data_len = pda_len;
-        __le16 *data = pda;
-
-        if (use_eeprom) {
-                /* PDA of spectrum symbol is in eeprom */
-
-                /* Issue command to read EEPROM */
-                ret = hw->ops->cmd_wait(hw, HERMES_CMD_READMIF, 0, NULL);
-                if (ret)
-                        return ret;
-        } else {
-                /* wl_lkm does not include PDA size in the PDA area.
-                 * We will pad the information into pda, so other routines
-                 * don't have to be modified */
-                pda[0] = cpu_to_le16(pda_len - 2);
-                        /* Includes CFG_PROD_DATA but not itself */
-                pda[1] = cpu_to_le16(0x0800); /* CFG_PROD_DATA */
-                data_len = pda_len - 4;
-                data = pda + 2;
-        }
-
-        /* Open auxiliary port */
-        ret = hermes_aux_control(hw, 1);
-        pr_debug(PFX "AUX enable returned %d\n", ret);
-        if (ret)
-                return ret;
-
-        /* read PDA from EEPROM */
-        hermes_aux_setaddr(hw, pda_addr);
-        hermes_read_words(hw, HERMES_AUXDATA, data, data_len / 2);
-
-        /* Close aux port */
-        ret = hermes_aux_control(hw, 0);
-        pr_debug(PFX "AUX disable returned %d\n", ret);
-
-        /* Check PDA length */
-        pda_size = le16_to_cpu(pda[0]);
-        pr_debug(PFX "Actual PDA length %d, Max allowed %d\n",
-                 pda_size, pda_len);
-        if (pda_size > pda_len)
-                return -EINVAL;
+        hw->ops->program(hw, pdi->data, pdr_addr(pdr), pdi_len(pdi));
 
         return 0;
 }
@@ -389,101 +273,13 @@ hermes_blocks_length(const char *first_block, const void *end)
 
 /*** Hermes programming ***/
 
-/* About to start programming data (Hermes I)
- * offset is the entry point
- *
- * Spectrum_cs' Symbol fw does not require this
- * wl_lkm Agere fw does
- * Don't know about intersil
- */
-int hermesi_program_init(hermes_t *hw, u32 offset)
-{
-        int err;
-
-        /* Disable interrupts?*/
-        /*hw->inten = 0x0;*/
-        /*hermes_write_regn(hw, INTEN, 0);*/
-        /*hermes_set_irqmask(hw, 0);*/
-
-        /* Acknowledge any outstanding command */
-        hermes_write_regn(hw, EVACK, 0xFFFF);
-
-        /* Using init_cmd_wait rather than cmd_wait */
-        err = hw->ops->init_cmd_wait(hw,
-                                     0x0100 | HERMES_CMD_INIT,
-                                     0, 0, 0, NULL);
-        if (err)
-                return err;
-
-        err = hw->ops->init_cmd_wait(hw,
-                                     0x0000 | HERMES_CMD_INIT,
-                                     0, 0, 0, NULL);
-        if (err)
-                return err;
-
-        err = hermes_aux_control(hw, 1);
-        pr_debug(PFX "AUX enable returned %d\n", err);
-
-        if (err)
-                return err;
-
-        pr_debug(PFX "Enabling volatile, EP 0x%08x\n", offset);
-        err = hw->ops->init_cmd_wait(hw,
-                                     HERMES_PROGRAM_ENABLE_VOLATILE,
-                                     offset & 0xFFFFu,
-                                     offset >> 16,
-                                     0,
-                                     NULL);
-        pr_debug(PFX "PROGRAM_ENABLE returned %d\n", err);
-
-        return err;
-}
-
-/* Done programming data (Hermes I)
- *
- * Spectrum_cs' Symbol fw does not require this
- * wl_lkm Agere fw does
- * Don't know about intersil
- */
-int hermesi_program_end(hermes_t *hw)
-{
-        struct hermes_response resp;
-        int rc = 0;
-        int err;
-
-        rc = hw->ops->cmd_wait(hw, HERMES_PROGRAM_DISABLE, 0, &resp);
-
-        pr_debug(PFX "PROGRAM_DISABLE returned %d, "
-                 "r0 0x%04x, r1 0x%04x, r2 0x%04x\n",
-                 rc, resp.resp0, resp.resp1, resp.resp2);
-
-        if ((rc == 0) &&
-            ((resp.status & HERMES_STATUS_CMDCODE) != HERMES_CMD_DOWNLD))
-                rc = -EIO;
-
-        err = hermes_aux_control(hw, 0);
-        pr_debug(PFX "AUX disable returned %d\n", err);
-
-        /* Acknowledge any outstanding command */
-        hermes_write_regn(hw, EVACK, 0xFFFF);
-
-        /* Reinitialise, ignoring return */
-        (void) hw->ops->init_cmd_wait(hw, 0x0000 | HERMES_CMD_INIT,
-                                      0, 0, 0, NULL);
-
-        return rc ? rc : err;
-}
-
 /* Program the data blocks */
 int hermes_program(hermes_t *hw, const char *first_block, const void *end)
 {
         const struct dblock *blk;
         u32 blkaddr;
         u32 blklen;
-#if LIMIT_PROGRAM_SIZE
-        u32 addr;
-        u32 len;
-#endif
+        int err = 0;
 
         blk = (const struct dblock *) first_block;
 
@@ -498,30 +294,10 @@ int hermes_program(hermes_t *hw, const char *first_block, const void *end)
                 pr_debug(PFX "Programming block of length %d "
                          "to address 0x%08x\n", blklen, blkaddr);
 
-#if !LIMIT_PROGRAM_SIZE
-                /* wl_lkm driver splits this into writes of 2000 bytes */
-                hermes_aux_setaddr(hw, blkaddr);
-                hermes_write_bytes(hw, HERMES_AUXDATA, blk->data,
-                                   blklen);
-#else
-                len = (blklen < MAX_DL_SIZE) ? blklen : MAX_DL_SIZE;
-                addr = blkaddr;
-
-                while (addr < (blkaddr + blklen)) {
-                        pr_debug(PFX "Programming subblock of length %d "
-                                 "to address 0x%08x. Data @ %p\n",
-                                 len, addr, &blk->data[addr - blkaddr]);
-
-                        hermes_aux_setaddr(hw, addr);
-                        hermes_write_bytes(hw, HERMES_AUXDATA,
-                                           &blk->data[addr - blkaddr],
-                                           len);
-
-                        addr += len;
-                        len = ((blkaddr + blklen - addr) < MAX_DL_SIZE) ?
-                                (blkaddr + blklen - addr) : MAX_DL_SIZE;
-                }
-#endif
+                err = hw->ops->program(hw, blk->data, blkaddr, blklen);
+                if (err)
+                        break;
+
                 blk = (const struct dblock *) &blk->data[blklen];
 
                 if ((void *) blk > (end - sizeof(*blk)))
@@ -530,7 +306,7 @@ int hermes_program(hermes_t *hw, const char *first_block, const void *end)
                 blkaddr = dblock_addr(blk);
                 blklen = dblock_len(blk);
         }
-        return 0;
+        return err;
 }
 
 /*** Default plugging data for Hermes I ***/
@@ -690,9 +466,8 @@ int hermes_apply_pda_with_defaults(hermes_t *hw,
                         if ((pdi_len(pdi) == pdr_len(pdr)) &&
                             ((void *) pdi->data + pdi_len(pdi) < pda_end)) {
                                 /* do the actual plugging */
-                                hermes_aux_setaddr(hw, pdr_addr(pdr));
-                                hermes_write_bytes(hw, HERMES_AUXDATA,
-                                                   pdi->data, pdi_len(pdi));
+                                hw->ops->program(hw, pdi->data, pdr_addr(pdr),
+                                                 pdi_len(pdi));
                         }
                 }