tpm_atmel.c (4eea703caaac025dd422bd3916b14523977f4332) tpm_atmel.c (9e0d39d8a6a0a8805d05fba22e3fbe80b5c8c4cb)
1/*
2 * Copyright (C) 2004 IBM Corporation
3 *
4 * Authors:
5 * Leendert van Doorn <leendert@watson.ibm.com>
6 * Dave Safford <safford@watson.ibm.com>
7 * Reiner Sailer <sailer@watson.ibm.com>
8 * Kylene Hall <kjhall@us.ibm.com>

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32 ATML_STATUS_BUSY = 0x01,
33 ATML_STATUS_DATA_AVAIL = 0x02,
34 ATML_STATUS_REWRITE = 0x04,
35 ATML_STATUS_READY = 0x08
36};
37
38static int tpm_atml_recv(struct tpm_chip *chip, u8 *buf, size_t count)
39{
1/*
2 * Copyright (C) 2004 IBM Corporation
3 *
4 * Authors:
5 * Leendert van Doorn <leendert@watson.ibm.com>
6 * Dave Safford <safford@watson.ibm.com>
7 * Reiner Sailer <sailer@watson.ibm.com>
8 * Kylene Hall <kjhall@us.ibm.com>

--- 23 unchanged lines hidden (view full) ---

32 ATML_STATUS_BUSY = 0x01,
33 ATML_STATUS_DATA_AVAIL = 0x02,
34 ATML_STATUS_REWRITE = 0x04,
35 ATML_STATUS_READY = 0x08
36};
37
38static int tpm_atml_recv(struct tpm_chip *chip, u8 *buf, size_t count)
39{
40 struct tpm_atmel_priv *priv = chip->vendor.priv;
40 struct tpm_atmel_priv *priv = dev_get_drvdata(&chip->dev);
41 u8 status, *hdr = buf;
42 u32 size;
43 int i;
44 __be32 *native_size;
45
46 /* start reading header */
47 if (count < 6)
48 return -EIO;

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91 return -EIO;
92 }
93
94 return size;
95}
96
97static int tpm_atml_send(struct tpm_chip *chip, u8 *buf, size_t count)
98{
41 u8 status, *hdr = buf;
42 u32 size;
43 int i;
44 __be32 *native_size;
45
46 /* start reading header */
47 if (count < 6)
48 return -EIO;

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91 return -EIO;
92 }
93
94 return size;
95}
96
97static int tpm_atml_send(struct tpm_chip *chip, u8 *buf, size_t count)
98{
99 struct tpm_atmel_priv *priv = chip->vendor.priv;
99 struct tpm_atmel_priv *priv = dev_get_drvdata(&chip->dev);
100 int i;
101
102 dev_dbg(&chip->dev, "tpm_atml_send:\n");
103 for (i = 0; i < count; i++) {
104 dev_dbg(&chip->dev, "%d 0x%x(%d)\n", i, buf[i], buf[i]);
105 iowrite8(buf[i], priv->iobase);
106 }
107
108 return count;
109}
110
111static void tpm_atml_cancel(struct tpm_chip *chip)
112{
100 int i;
101
102 dev_dbg(&chip->dev, "tpm_atml_send:\n");
103 for (i = 0; i < count; i++) {
104 dev_dbg(&chip->dev, "%d 0x%x(%d)\n", i, buf[i], buf[i]);
105 iowrite8(buf[i], priv->iobase);
106 }
107
108 return count;
109}
110
111static void tpm_atml_cancel(struct tpm_chip *chip)
112{
113 struct tpm_atmel_priv *priv = chip->vendor.priv;
113 struct tpm_atmel_priv *priv = dev_get_drvdata(&chip->dev);
114
115 iowrite8(ATML_STATUS_ABORT, priv->iobase + 1);
116}
117
118static u8 tpm_atml_status(struct tpm_chip *chip)
119{
114
115 iowrite8(ATML_STATUS_ABORT, priv->iobase + 1);
116}
117
118static u8 tpm_atml_status(struct tpm_chip *chip)
119{
120 struct tpm_atmel_priv *priv = chip->vendor.priv;
120 struct tpm_atmel_priv *priv = dev_get_drvdata(&chip->dev);
121
122 return ioread8(priv->iobase + 1);
123}
124
125static bool tpm_atml_req_canceled(struct tpm_chip *chip, u8 status)
126{
127 return (status == ATML_STATUS_READY);
128}

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137 .req_canceled = tpm_atml_req_canceled,
138};
139
140static struct platform_device *pdev;
141
142static void atml_plat_remove(void)
143{
144 struct tpm_chip *chip = dev_get_drvdata(&pdev->dev);
121
122 return ioread8(priv->iobase + 1);
123}
124
125static bool tpm_atml_req_canceled(struct tpm_chip *chip, u8 status)
126{
127 return (status == ATML_STATUS_READY);
128}

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137 .req_canceled = tpm_atml_req_canceled,
138};
139
140static struct platform_device *pdev;
141
142static void atml_plat_remove(void)
143{
144 struct tpm_chip *chip = dev_get_drvdata(&pdev->dev);
145 struct tpm_atmel_priv *priv = chip->vendor.priv;
145 struct tpm_atmel_priv *priv = dev_get_drvdata(&chip->dev);
146
147 if (chip) {
148 tpm_chip_unregister(chip);
149 if (priv->have_region)
150 atmel_release_region(priv->base, priv->region_size);
151 atmel_put_base_addr(priv->iobase);
152 platform_device_unregister(pdev);
153 }

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202 priv->region_size = region_size;
203
204 chip = tpmm_chip_alloc(&pdev->dev, &tpm_atmel);
205 if (IS_ERR(chip)) {
206 rc = PTR_ERR(chip);
207 goto err_unreg_dev;
208 }
209
146
147 if (chip) {
148 tpm_chip_unregister(chip);
149 if (priv->have_region)
150 atmel_release_region(priv->base, priv->region_size);
151 atmel_put_base_addr(priv->iobase);
152 platform_device_unregister(pdev);
153 }

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202 priv->region_size = region_size;
203
204 chip = tpmm_chip_alloc(&pdev->dev, &tpm_atmel);
205 if (IS_ERR(chip)) {
206 rc = PTR_ERR(chip);
207 goto err_unreg_dev;
208 }
209
210 chip->vendor.priv = priv;
210 dev_set_drvdata(&chip->dev, priv);
211
212 rc = tpm_chip_register(chip);
213 if (rc)
214 goto err_unreg_dev;
215
216 return 0;
217
218err_unreg_dev:

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212 rc = tpm_chip_register(chip);
213 if (rc)
214 goto err_unreg_dev;
215
216 return 0;
217
218err_unreg_dev:

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